Polyester elastomers derived from dicarboxylic acids or tricarboxylic acids, monocarboxylic acids, and polyols for cosmetic and personal care applications.

Abstract

This disclosure provides polyester elastomers, polyester elastomer compositions, and methods for preparing polyester elastomers and polyester elastomer compositions. The polyester elastomers in this disclosure are prepared by reacting at least one dicarboxylic acid or tricarboxylic acid, at least one monocarboxylic acid, and at least one polyol. The crosslinked polyester elastomers can be incorporated into a variety of personal care formulations.

Description

[Technical Field]

[0001] This disclosure provides polyester elastomers, polyester elastomer compositions, and methods for preparing such polyester elastomers and compositions. These elastomers are prepared by reacting at least one dicarboxylic acid or tricarboxylic acid, at least one monocarboxylic acid, and at least one polyol. Furthermore, these polyester elastomers can be converted into polyester elastomer powders and gels. Such polyester elastomers, polyester elastomer powders, and polyester elastomer gels can be biodegradable and can be produced from biorenewable raw materials. Moreover, these polyester elastomer powders and gels offer advantageous properties when combined with various personalized products. [Background technology]

[0002] The personal care industry thrives on producing a wide range of performance products based on mixtures of several components, each possessing either important or desirable performance characteristics for the final formulation. Silicone gels are commonly added to various personal care formulations to enhance aesthetics in terms of sensory, tactile, rheological, and optical properties. See, for example, U.S. Patents 4,987,169; 5,654,362; 5,760,116; 6,423,322; and 5,811,487.

[0003] Crosslinked polymers are added to control the sensory, tactile, rheological, and optical properties of various cosmetic products. Silicone elastomers are particularly important because they can form three-dimensional elastic particles of polymeric dimethicone, resulting in sensory, tactile, rheological, and optical effects favorable to cosmetic products. However, conventional silicone elastomers have limited versatility with respect to compatibility with polar solvents or emollients such as hydrocarbon oils, vegetable oils, glycerin, and water. Thus, although the properties of silicone elastomers are unparalleled, there is a demand for alternatives to silicone elastomers. In particular, there is a market demand for non-silicone elastomer materials. US20210059924A1 discloses a polyurethane elastomer rubber composition comprising a bio-based polyol crosslinked with a bio-based isocyanate. In a further embodiment of this invention, the crosslinked polyurethane elastomer rubber is milled in the presence of a bio-based emollient or a mixture of bio-based emollients and then incorporated into a gel. This polyester elastomer gel has good compatibility with cosmetics and natural oils, and can be used as a gelling agent for these oils in desired cosmetic formulations.

[0004] Polyesters are a class of compounds that contain ester functional groups in their polymer chains. Ester groups become hydrolyzable when treated with a given biological catalyst or a given mixed culture medium of microorganisms, thereby making many polyesters biodegradable. In recent years, there has been growing interest in designing and developing bio-based polyesters from renewable resources as emollients, emulsifiers, film-forming agents, or other functional ingredients for personal care applications. See, for example, U.S. Patents 8,414,906; 9,334,358; 6,540,987; and 7,820,758. However, no polyester elastomers or polyester elastomer gels have been reported that offer significant consumer benefits as a substitute for silicone gels. [Overview of the project]

[0005] This disclosure provides a crosslinked polyester elastomer comprising a reaction product of at least one dicarboxylic acid or tricarboxylic acid, at least one monocarboxylic acid, and at least one polyol. In one embodiment, the polyester elastomer is prepared by an esterification reaction between at least one dicarboxylic acid or tricarboxylic acid, at least one monocarboxylic acid, and at least one polyol to produce a crosslinked polymer structure. The polyester elastomer can further be swollen with a low molecular weight emollient or solvent under shear force to form a uniform polyester gel or paste having a wide viscosity range. These elastomers are expected to offer superior performance advantages, such as improved sensory, structural, and rheological properties, compared to similar elastomers disclosed to date. In another embodiment, this invention relates to a personal care composition comprising a high-purity polyester elastomer.

[0006] In the first embodiment, this disclosure is:

[0007] (i) at least one dicarboxylic acid or tricarboxylic acid;

[0008] (ii) at least one monocarboxylic acid; and

[0009] (iii) Reaction product of at least one polyol We provide a polyester elastomer containing the following:

[0010] In one embodiment, the present disclosure provides an elastomer which is:

[0011] (i) at least one dicarboxylic acid of formula (IA) [ka]

[0012] During the ceremony

[0013] R 1A is C2 - C 52 alkyl group, C2 - C 52 heteroalkyl group, C2 - C 52 alkene group, C2 - C 52 heteroalkene group, C3 - C 52 cyclic group, or C2 - C 52 heterocyclic group; or

[0014] at least one tricarboxylic acid of formula (IB)

Chemical formula

[0015] wherein

[0016] R 1B is C2 - C 52 alkyl group, C2 - C 52 heteroalkyl group, C2 - C 52 alkene group, C2 - C 52 heteroalkene group, C3 - C 52 cyclic group, or C2 - C 52 heterocyclic group;

[0017] (ii) at least one monocarboxylic acid of formula (II)

Chemical formula

[0018] wherein

[0019] {END]] R 2 is C2 - C 52 alkyl group, C2 - C 52 heteroalkyl group, C2 - C 52 alkene group, C2 - C 52 heteroalkene group, C3 - C 52 cyclic group, or C2 - C 52 heterocyclic group; and

[0020] (iii) at least one polyol of formula (III)

Chemical formula

[0021] During the ceremony

[0022] R 3 is C3~C 50 Alkyl alkyl groups, C3-C 50 Heteroalkyl groups, C3-C 50 Alkene group, C3~C 50 Heteroalkene group, C3~C 50 Cyclic group, or C3~C 50 Heterocyclic groups; and

[0023] n is an integer between 2 and 10. It is prepared by reacting the following.

[0024] In one embodiment, the present disclosure provides a method for preparing a polyester elastomer, which is:

[0025] (i) at least one dicarboxylic acid or tricarboxylic acid;

[0026] (ii) at least one monocarboxylic acid; and

[0027] (iii) comprising reacting at least one polyol.

[0028] In one embodiment, the preparation of the polyester elastomer is solvent-free or emollient-free. In another embodiment, the preparation of the polyester elastomer is solvent-free or emollient-free as specified in this application.

[0029] In one embodiment, the polyester elastomer is composed solely of polyester. In another embodiment, the polyester elastomer is composed solely of crosslinked polyester. In yet another embodiment, the polyester elastomer is composed of crosslinked polyester and non-crosslinked polyester.

[0030] In one embodiment, the polyester elastomer is composed of polyester and a solvent or emollient. In another embodiment, the polyester elastomer is composed of crosslinked polyester and a solvent or emollient. In yet another embodiment, the polyester elastomer is composed of crosslinked polyester, non-crosslinked polyester, and a solvent or emollient.

[0031] In one embodiment, the polyester elastomer is in powder form.

[0032] Polyester elastomers form crosslinked polymer network structures. As is well known to those skilled in the art, such crosslinked polymers are not (completely) soluble and can be characterized using certain methods, including, for example, sol-gel analysis (determination of gel fraction), swelling ratio analysis (determination of swelling ratio), and mechanical analysis (e.g., determination of elastic modulus) (see, e.g., Polym. Chem., 2024, 15, 219-247).

[0033] In one embodiment, the fraction of polyester elastomer insoluble in ethyl acetate (gel fraction) is greater than or equal to 20%. In one embodiment, the fraction of polyester elastomer insoluble in ethyl acetate (gel fraction) is greater than or equal to 40%. In one embodiment, the fraction of polyester elastomer insoluble in ethyl acetate (gel fraction) is greater than or equal to 50%. In one embodiment, the fraction of polyester elastomer insoluble in ethyl acetate (gel fraction) is greater than or equal to 60%. In one embodiment, the fraction of polyester elastomer insoluble in ethyl acetate (gel fraction) is greater than or equal to 70%. The gel fraction is

number

[0034] In one embodiment, the gel fraction can be determined by an extraction method such as the Soxhlet extraction described in this application.

[0035] In one embodiment, the polyester elastomer composition comprises a polyester elastomer and a solvent or emollient as defined herein. In another embodiment, the polyester elastomer composition comprises a polyester elastomer without a solvent or emollient as defined herein. In yet another embodiment, the polyester elastomer composition is a gel or a powder.

[0036] In one embodiment, the polyester elastomer composition is a polyester elastomer that can be converted into a polyester elastomer gel (swollen polyester elastomer) by combining it with one or more solvents or emollients, for example, by applying a shear force to the composition.

[0037] In one embodiment, the present disclosure provides the use of a gel or powder prepared from the polyester elastomer described herein in the manufacture of personal care formulations. I. Definition

[0038] Unless otherwise specified, any atom whose valency is not met is assumed to have enough hydrogen atoms to satisfy that valency.

[0039] It should be noted that the terms “a certain” or “one” existence refer to one or more such existences; for example, “a certain nucleic acid sequence” is understood to refer to one or more nucleic acid sequences unless otherwise specified. Thus, the terms “a certain” (or “one”), “one or more,” and “at least one” can be used interchangeably in this application.

[0040] Furthermore, when used in this application, “and / or” is understood to be a specific disclosure of each of the two identified features or components, with or without the other. Thus, when the term “and / or” is used in this application in a phrase such as “A and / or B,” it is intended to include “A and B,” “A or B,” “A” (alone), and “B” (alone). Similarly, when the term “and / or” is used in this application in a phrase such as “A, B and / or C,” it is intended to include each of the following aspects: A, B, and C; A, B, or C; A or C; A or B; B or C; A and C; A and B; B and C; A (alone); B (alone); and C (alone).

[0041] When a feature is described in this application using the term "includes," it is understood that the same feature is also presented, except that it is described using the terms "consist of" and / or "essentially consists of."

[0042] In this application, the term "approximately" means roughly, roughly, about, or around the same time. When the term "approximately" is used in relation to a numerical range, it modifies that range by extending the upper and lower boundaries of the stated numerical value. Generally, the term "approximately" can modify a numerical value by changing the upper and lower values ​​of the stated value by, for example, 10 percent up or down (higher or lower).

[0043] Where used in this application, unless otherwise specified, the following definitions apply. For the purposes of this disclosure, chemical elements are identified in accordance with the CAS Periodic Table of Elements and the Handbook of Chemistry and Physics, 75th edition, 1994. In addition, the general principles of organic chemistry are described in Thomas Sorrell, *Organic Chemistry*, University Science Books, Sausalito: 1999, and in MBSmith and J. March, eds., *March's Advanced Organic Chemistry*, 6th edition, John Wiley & Sons, New York: 2007, and their entire contents are incorporated into this application by reference.

[0044] As used in this application, the term "hydrocarbon" refers to a linear or branched aliphatic hydrocarbon containing 1 to 200 carbon atoms, either by itself or as part of a group, i.e., C1-C12. 200 Hydrocarbons refer to linear or branched aliphatic hydrocarbons containing a specified number of carbon atoms, such as C1 alkyls like methyl and C2 alkyls like ethyl. In one embodiment, the hydrocarbon is C2-C 200 It is a hydrocarbon group. In the embodiment, the hydrocarbon is C6~C 60 It is a hydrocarbon group. In the embodiment, the hydrocarbon is C6~C 60 It is a hydrocarbon group. In the embodiment, the hydrocarbon is C2-C 60 It is a hydrocarbon group. In another embodiment, the hydrocarbon is C5~C 22 These are hydrocarbon groups. Examples of hydrocarbon groups include butyl, octyl, decyl, lauryl, cetyl (palmityl), and stearyl.

[0045] As used in this application, the term "alkyl" refers to a linear or branched aliphatic hydrocarbon containing 1 to 200 carbon atoms, either by itself or as part of a group, i.e., C2-C2 200Alkyl refers to a linear or branched aliphatic hydrocarbon containing a specified number of carbon atoms, such as a C1 alkyl like methyl or a C2 alkyl like ethyl. In one embodiment, alkyl is C2-C 200 It is an alkyl group. In another embodiment, the alkyl group is C6-C 60 It is an alkyl group. In another embodiment, the alkyl group is C2-C 60 It is an alkyl group. In another embodiment, the alkyl group is C5-C 22 These are alkyl groups. Examples of alkyl groups include butyl, octyl, decyl, lauryl, cetyl (palmityl), and stearyl.

[0046] As used in this application, the term "alkene" refers to an alkyl group containing one, two, three, or more carbon-carbon double bonds, either by itself or as part of a group. In one embodiment, the alkene group is C2-C 200 In another embodiment, the alkene group is C6-C 60 In another embodiment, the alkene group is C2-C 60 In another embodiment, the alkene group is C5-C 22 It is an alkene group.

[0047] As used in this application, the term "alkyne" refers to an alkyl group containing one, two, three, or more carbon-carbon triple bonds, either by itself or as part of a group. In another embodiment, the alkyne is C2-C 200 It is an alkyne group.

[0048] As used in this application, the term "cyclic" refers to a stable cyclic compound containing three or more atoms, either by itself or as part of a group. In some embodiments, the cyclic compound is C3-C3 200 It is a cyclic group. In one embodiment, the cyclic group is C6~C 60 It is a cyclic group. In one embodiment, the cyclic group is C5~C 22 It is a cyclic group. Examples of cyclic compounds include benzene, cyclopentane, and cyclohexane.

[0049] The term “heteroalkyl” as used in this application refers to a stable linear or branched alkyl radical containing, by itself or as part of a group, 2 to 200 carbon atoms and at least one heteroatom selected from O, N, or S, which may be identical or different, and the sulfur atom may be optionally oxidized. The heteroatom can be located at any internal position of the heteroalkyl group or at a position where the heteroalkyl group is bonded to the remainder of the molecule. In some embodiments, the heteroalkyl group is C2-C 60 It is a heteroalkyl group. In this embodiment, the heteroalkyl group is C2-C 60 These are heteroalkyl groups. Examples of heteroalkyl compounds include succinyl, adipoyl, and sebacoyl.

[0050] The term "heteroalkene," as used in this application, refers to a stable linear or branched alkene radical containing, either by itself or as part of a group, 2 to 200 carbon atoms and at least one heteroatom selected from O, N, or S, which may be identical or different, and the sulfur atom may be optionally oxidized. The heteroatom can be located at any internal position of the heteroalkyl group or at a position where the heteroalkyl group is bonded to the remainder of the molecule. In embodiments, the heteroalkene is C6~C 60 It is a heteroalkene group. In this embodiment, the heteroalkene is C2~C 60 These are heteroalkene groups. Examples of heteroalkene compounds include oleoyl, ricinolyl, and linoleoyl.

[0051] As used in this application, the term "heteralkyne" refers to a stable linear or branched alkyne radical containing, by itself or as part of a group, 2 to 200 carbon atoms and at least one heteroatom selected from O, N, or S, which may be identical or different, and the sulfur atom may be optionally oxidized. The heteroatom can be located at any internal position of the heteroalkyl group or at a position where the heteroalkyl group is bonded to the remainder of the molecule.

[0052] As used in this application, the term "heterocyclic" refers to a stable cyclic compound that contains, by itself or as part of a group, two or more carbon atoms and at least one heteroatom selected from O, N, or S, which may be identical or different. In embodiments, the heterocyclic group is C2-C 200 It is a heterocyclic group. In this embodiment, the heterocyclic group is C6~C 60 It is a heterocyclic group. In this embodiment, the heterocyclic group is C5~C 22 These are heterocyclic groups. Examples of heterocyclic groups include furan, oxolane, and thiophene.

[0053] As used in this application, the term “olefin” refers to any species having at least one ethylenically charged double bond, such as linear or branched aliphatic olefins, alicyclic olefins, aryl-substituted olefins, and others. Olefins may be optionally substituted at terminal double bonds (one or more) ("terminal olefins") and / or internal double bonds (one or more) ("internal olefins"), cyclic or acyclic, linear or branched. The total number of carbon atoms may be from 1 to 100, or from 1 to 40; the double bonds may be unsubstituted, or mono-, di-, tri-, or tetra-substituted.

[0054] As used in this application, the term "polyolefin" refers to homopolymers or copolymers of ethylene, propylene, butene, and other unsaturated aliphatic hydrocarbons, vinyl esters (e.g., vinyl acetate), or (meth)acrylic compounds (e.g., butyl acrylate, acrylic acid). Generally, polyolefins are polymers of ethylene, propylene, or copolymers thereof, or ethylene or propylene with one or more C4-C4 compounds. 12 It is a copolymer with an α-olefin aliphatic comonomer.

[0055] A gel is a dispersion system comprising at least two components: a solid component and a liquid component. The solid component forms a spongy three-dimensional network structure, the pores of which are filled with the liquid. The liquid component is thus immobilized in the solid. In the gel of the present invention, the solid component is a three-dimensional network structure formed of a crosslinked polyester elastomer, and the liquid component is formed of one or more solvents or emollients as defined herein. The gel is semi-solid and can have properties ranging from soft to rigid. The gel is also defined as a substantially diluted crosslinked system.

[0056] Thus, the elastomer gel is formed from elastomer powders or particles that swell or disperse in a liquid such as a solvent or emollient to form a gel. The swelling performance is generally expressed by the swelling ratio, as described herein.

[0057] Various aspects of this disclosure are described in more detail below. II. Polyester Elastomer

[0058] In one embodiment, this disclosure is directed to an elastomer, which is:

[0059] (i) at least one dicarboxylic acid or tricarboxylic acid;

[0060] (ii) at least one monocarboxylic acid; and

[0061] (iii) comprising a reaction product of at least one polyol.

[0062] In some cases, the elastomer is a polyester elastomer. In other cases, the elastomer is a cross-linked polyester elastomer.

[0063] In one embodiment, at least one of components (i) and / or (iii) has a functionality of >2. In another embodiment, polyol (iii) has a functionality of ≥3.

[0064] In one embodiment, component (i) has a functionality of 2 (dicarboxylic acid), and polyol (iii) has a functionality of ≥3. [Brief explanation of the drawing]

[0065] Figure 1 shows monomer A(C 36 This bar graph shows the time required for polyester elastomers prepared from dimer acid, B (oleic acid), and C (diglycerin) in four different ratios at 140°C under nitrogen protection to reach a 60% gel fraction, as measured by Soxhlet extraction with ethyl acetate as described in this application. No solvent or emollient was used. The molar ratio of B to C was kept constant.

[0066] Figure 2 shows monomer A(C 36 This bar graph shows the swelling values ​​(or ratios) of polyester elastomers prepared in four different ratios from dimer acid, B (oleic acid), and C (diglycerin) under nitrogen protection at 140°C, measured in caprylic / capric coconut alkyl as described herein. No solvent or emollient was used. The molar ratio of B to C was kept constant.

[0067] Figure 3 shows monomer A(C 36A bar graph showing the time required for crosslinked polyesters prepared from monomer A (dimer acid), B (oleic acid), and C (diglycerin) at four different ratios under nitrogen protection at 140 °C to reach a gel fraction of 60% as measured by Soxhlet extraction with ethyl acetate as described in the present application. No solvent or emollient was used. The molar ratio of A to C was kept constant.

[0068] Figure 4 shows the poly(ester elastomer) prepared from monomer A (C 36 A bar graph showing the swelling value (or ratio) of polyester elastomers prepared from monomer A (dimer acid), B (oleic acid), and C (diglycerin) at four different ratios under nitrogen protection at 140 °C as measured in capric / caprylic cocoalkyl as described in the present application. No solvent or emollient was used.

[0069] Figure 5 is a line graph showing the rheology profile (measured as described in the present application) of a polyester elastomer gel prepared by treating the polyester elastomer of Example 1 with a capric / caprylic cocoalkyl emollient.

[0070] Figure 6 is a line graph showing the particle size distribution (determined as described in the present application) of a polyester elastomer gel prepared by treating the polyester elastomer of Example 1 with a capric / caprylic cocoalkyl solvent or emollient.

Mode for Carrying Out the Invention

[0071] A. Components 1. Dicarboxylic acid In certain embodiments, at least one dicarboxylic acid is a compound of formula (IA),

Chemical formula

[0072] Wherein

[0073] R 1A is C2 - C52 Alkyl alkyl groups, C2-C 52 Heteroalkyl groups, C2-C 52 Alkene group, C2~C 52 Heteroalkene group, C3~C 52 Cyclic group, or C2~C 52 It is a heterocyclic group.

[0074] In one embodiment, the dicarboxylic acid is a compound of formula (IA), where R 1A is C4~C 34 Alkyl alkyl groups, C4-C 34 Heteroalkyl groups, C4~C 34 Alkene group, C4~C 34 Heteroalkene group, C4~C 34 Cyclic group, or C4~C 34 It is a heterocyclic group.

[0075] In one embodiment, the dicarboxylic acid is a compound of formula (IA), where R 1A is C4~C 34 It is an alkyl group.

[0076] In one embodiment, the dicarboxylic acid is succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, brasylic acid, dodecanediic acid, C 21 Dimer acid, C 36 The dicarboxylic acid is selected from the group consisting of dimer acids, maleic acid, fumaric acid, traumatic acid, and combinations thereof. In one embodiment, the dicarboxylic acid is dilinoleic acid. In one embodiment, the dicarboxylic acid is C 36 It is a dimer acid. In one embodiment, a dicarboxylic acid is a hydrogenated C 36 It is a dimer acid.

[0077] In one embodiment, the dicarboxylic acid is bio-based or naturally derived. 2. Tricarboxylic acid

[0078] In one embodiment, at least one tricarboxylic acid is a compound of formula (IB). [Chemical formula]

[0079] wherein

[0080] R 1B is a C2 - C 52 alkyl group, a C2 - C 52 heteroalkyl group, a C2 - C 52 alkene group, a C2 - C 52 heteroalkene group, a C3 - C 52 cyclic group, or a C2 - C 52 heterocyclic group.

[0081] In certain embodiments, the tricarboxylic acid is a compound of formula (IB), wherein R 1B is a C4 - C 34 alkyl group, a C4 - C 34 heteroalkyl group, a C4 - C 34 alkene group, a C4 - C 34 heteroalkene group, a C4 - C 34 cyclic group, or a C4 - C 34 heterocyclic group.

[0082] In certain embodiments, the tricarboxylic acid is a compound of formula (IB), wherein R 1B is a C4 - C 34 alkyl group.

[0083] In certain embodiments, the tricarboxylic acid is selected from the group consisting of citric acid, C 54 trimer acid, and hydrogenated C 54 trimer acid. In certain embodiments, the tricarboxylic acid is C 54 trimer acid.

[0084] In certain embodiments, the dicarboxylic acid is bio - based or naturally derived. 3. Monocarboxylic acid

[0085] In certain embodiments, at least one monocarboxylic acid is a compound of formula (II), [Chemical formula]

[0086] wherein

[0087] R 2 is a C2-C 52 alkyl group, a C2-C 52 heteroalkyl group, a C2-C 52 alkene group, a C2-C 52 heteroalkene group, a C3-C 52 cyclic group, or a C2-C 52 heterocyclic group.

[0088] In certain embodiments, the monocarboxylic acid is a compound of formula (II), wherein R 2 is a C5-C 21 alkyl group, a C5-C 21 heteroalkyl group, a C5-C 21 alkene group, a C5-C 21 heteroalkene group, a C5-C 21 cyclic group, or a C5-C 21 heterocyclic group.

[0089] In certain embodiments, the monocarboxylic acid is selected from the group consisting of caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, and combinations thereof. In certain embodiments, the monocarboxylic acid is oleic acid. In certain embodiments, the monocarboxylic acid is isostearic acid.

[0090] In certain embodiments, the monocarboxylic acid is bio-based or naturally derived. 4. Polyol

[0091] In certain embodiments, at least one polyol is a compound of formula (III), [Chemical formula]

[0092] During the ceremony

[0093] R 3 is C3~C 50 Alkyl alkyl groups, C3-C 50 Heteroalkyl groups, C3-C 50 Alkene group, C3~C 50 Heteroalkene group, C3~C 50 Cyclic group, or C3~C 50 Heterocyclic groups; and

[0094] n is an integer between 2 and 10.

[0095] In one embodiment, the polyol is a compound of formula (III), where R 3 is C3~C 50 Alkyl alkyl groups, C3-C 50 Heteroalkyl groups, C3-C 50 Alkene group, or C3~C 50 A heteroalkene group; and n is an integer from 2 to 10.

[0096] In one embodiment, the polyol is a compound of formula (III), where R 3 is C3~C 20 Alkyl alkyl groups, C3-C 20 Heteroalkyl groups, C3-C 20 Alkene group, or C3~C 20 A heteroalkene group; and n is an integer from 2 to 10.

[0097] In one embodiment, the polyol is a compound of formula (III), where n is an integer from 2 to 6. In one embodiment, the polyol is a compound of formula (III), where n is 2, 3, 4, 5, or 6. In one embodiment, the polyol is a compound of formula (III), where n is an integer from 3 to 10. In one embodiment, the polyol is a compound of formula (III), where n is an integer from 3 to 6.

[0098] In one embodiment, the polyol is glycerin, diglycerin, polyglycerin, polyglycerin-3, sorbitol, castor oil, hydrogenated castor oil, sugar alcohol, monosaccharides, disaccharides, oligosaccharides, polysaccharides, tannins, gallic acid, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,2-pentanediol, 1,3-pentanediol, 1,4-pentanediol, 1,5-pentanediol, 1,2-hexanediol, 1,5-hexanediol, 1,6-hexanediol, C 36 Dimer ol, hydrogenated C 36 The polyol is selected from the group consisting of dimer ols and combinations thereof. In one embodiment, the polyol is hydrogenated castor oil. In one embodiment, the polyol is diglycerin. In one embodiment, the polyol is polyglycerin-3. In one embodiment, the polyol is polyglycerin-4.

[0099] In one embodiment, the polyol is bio-based or naturally derived. B. Ratio of components

[0100] In one embodiment, the elastomer includes a defined molar ratio of carboxyl functional groups (-COOH) derived from monocarboxylic acid to hydroxyl functional groups (-OH) derived from polyol. It has been found that the molar ratio of carboxyl functional groups (-COOH) derived from monocarboxylic acid to hydroxyl functional groups (-OH) derived from polyol affects the performance of the polyester elastomer and the performance of the gel produced from the polyester elastomer.

[0101] In one embodiment, the molar ratio of carboxyl functional groups (-COOH) derived from monocarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1:2 to approximately 1:16. In another embodiment, the molar ratio of carboxyl functional groups (-COOH) derived from monocarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1:2 to approximately 1:14. In yet another embodiment, the molar ratio of carboxyl functional groups (-COOH) derived from monocarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1:2 to approximately 1:10. In yet another embodiment, the molar ratio of carboxyl functional groups (-COOH) derived from monocarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1:2 to approximately 1:8. In yet another embodiment, the molar ratio of carboxyl functional groups (-COOH) derived from monocarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1:2 to approximately 1:5. In one embodiment, the molar ratio of carboxyl functional groups (-COOH) derived from monocarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1:16, approximately 1:15, approximately 1:14, approximately 1:13, approximately 1:12, approximately 1:11, approximately 1:10, approximately 1:9, approximately 1:8, approximately 1:7, approximately 1:6, approximately 1:5, approximately 1:4, approximately 1:3, or approximately 1:2.

[0102] In one embodiment, the molar ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1.5:1 to approximately 1:4. In one embodiment, the ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1.5:1 to approximately 1:2. In one embodiment, the ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1.5:1 to approximately 1:1.5. In one embodiment, the ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1.5:1 to approximately 1:1.25. In one embodiment, the ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1.5:4, approximately 1.5:3, approximately 1.5:2, approximately 1:1, approximately 1:2, approximately 1:3, or approximately 1:4.

[0103] The results in Figures 1, 2, 3, and 4 show that, if the molar ratio of dicarboxylic acid or tricarboxylic acid to polyol is kept constant, the amount of monocarboxylic acid has a substantial effect on the weight percentage of crosslinked polyester in the resulting polyester elastomer, and on the swelling value (i.e., swelling ratio) of the polyester elastomer in caprylic / capric coconut alkyl. The swelling value of the polyester elastomer is an important indicator of how the polyester elastomer behaves in personal care formulations.

[0104] In one embodiment, the conversion from a carboxylic acid functional group (-COOH) to an ester functional group (-CO(O)-) is 80 mol% or more. This conversion rate is calculated by titrating the carboxylic acid functional group (-COOH) with 0.1 N KOH in isopropanol. II. Method for preparing polyester elastomers 1. Esterification reaction

[0105] In one embodiment, this disclosure is directed to a method for preparing elastomers, which reacts:

[0106] (i) at least one dicarboxylic acid or tricarboxylic acid;

[0107] (ii) at least one monocarboxylic acid; and

[0108] (iii) comprising reacting at least one polyol.

[0109] In one embodiment, the elastomer prepared is a polyester elastomer. In another embodiment, the elastomer prepared is a crosslinked polyester elastomer.

[0110] In one embodiment, the preparation of the elastomer is carried out under nitrogen protection, under vacuum, or a combination thereof.

[0111] In one demonstration, elastomers are:

[0112] (i) at least one dicarboxylic acid or tricarboxylic acid, where optionally the dicarboxylic acid or tricarboxylic acid is an activated dicarboxylic acid or activated tricarboxylic acid;

[0113] (ii) at least one monocarboxylic acid; and

[0114] (iii) Prepared by reacting at least one polyol.

[0115] In one demonstration, elastomers are:

[0116] (i) at least one activated dicarboxylic acid or tricarboxylic acid;

[0117] (ii) at least one monocarboxylic acid; and

[0118] (iii) Prepared by reacting at least one polyol.

[0119] In one embodiment, the reaction comprises an activated dicarboxylic acid or tricarboxylic acid, and the preparation of the elastomer further includes adding water to rapidly cool the activator and inhibit the reaction.

[0120] In one embodiment, the esterification is carried out in a solvent or emollient. In another embodiment, the esterification is carried out in one or more solvents or emollients.

[0121] In one embodiment, esterification is carried out in the absence of a solvent or emollient. 2. Ratio of ingredients

[0122] In one embodiment, the preparation of the elastomer involves a specified ratio of dicarboxylic acid or tricarboxylic acid (A) to polyol (C), and a specified ratio of monocarboxylic acid (B) to polyol (C). The A / C and B / C ratios have been found to affect the performance of the polyester elastomer and the performance of the gel produced from the polyester elastomer.

[0123] In one embodiment, the molar ratio of the carboxyl functional group (-COOH)(B) derived from the monocarboxylic acid to the hydroxyl functional group (-OH)(C) derived from the polyol is approximately 1:2 to approximately 1:16. In one embodiment, the molar ratio of the carboxyl functional group (-COOH)(B) derived from the monocarboxylic acid to the hydroxyl functional group (-OH)(C) derived from the polyol is approximately 1:2 to approximately 1:14. In one embodiment, the molar ratio of the carboxyl functional group (-COOH)(B) derived from the monocarboxylic acid to the hydroxyl functional group (-OH)(C) derived from the polyol is approximately 1:2 to approximately 1:10. In one embodiment, the molar ratio of the carboxyl functional group (-COOH)(B) derived from the monocarboxylic acid to the hydroxyl functional group (-OH)(C) derived from the polyol is approximately 1:2 to approximately 1:8. In one embodiment, the molar ratio of the carboxyl functional group (-COOH)(B) derived from the monocarboxylic acid to the hydroxyl functional group (-OH)(C) derived from the polyol is approximately 1:2 to approximately 1:5. In one embodiment, the molar ratio of the carboxyl functional group (-COOH)(B) derived from the monocarboxylic acid to the hydroxyl functional group (-OH)(C) derived from the polyol is approximately 1:16, approximately 1:15, approximately 1:14, approximately 1:13, approximately 1:12, approximately 1:11, approximately 1:10, approximately 1:9, approximately 1:8, approximately 1:7, approximately 1:6, approximately 1:5, approximately 1:4, approximately 1:3, or approximately 1:2.

[0124] In one embodiment, the molar ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid (A) to hydroxyl functional groups (-OH)(C) derived from polyol is approximately 1.5:1 to approximately 1:4. In another embodiment, the ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid (A) to hydroxyl functional groups (-OH)(C) derived from polyol is approximately 1.5:1 to approximately 1:2. In yet another embodiment, the ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid (A) to hydroxyl functional groups (-OH)(C) derived from polyol is approximately 1.5:1 to approximately 1:1.5. In yet another embodiment, the ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid (A) to hydroxyl functional groups (-OH)(C) derived from polyol is approximately 1.5:1 to approximately 1:1.25. In one embodiment, the ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid (A) to hydroxyl functional groups (-OH) (C) derived from polyol is approximately 1.5:4, approximately 1.5:3, approximately 1.5:2, approximately 1:1, approximately 1:2, approximately 1:3, or approximately 1:4.

[0125] In one embodiment, the conversion from a carboxyl functional group (-COOH) to an ester functional group (-CO(O)-) is 80 mol% or more. This conversion rate is calculated by titrating the carboxylic acid functional group (-COOH) with 0.1 N KOH in isopropanol.

[0126] In one embodiment, esterification is carried out in the absence of a solvent or emollient.

[0127] In one embodiment, the esterification is carried out in a solvent or emollient. In another embodiment, the esterification is carried out in one or more solvents or emollients.

[0128] In one embodiment, the proportion of solvent or emollient in the total raw materials for the esterification reaction is in the range of 0% to 80% by weight. In one embodiment, the proportion of solvent or emollient in the total raw materials for the esterification reaction is in the range of 0% to 60% by weight. In one embodiment, the proportion of solvent or emollient in the total raw materials for the esterification reaction is in the range of 0% to 50% by weight. In one embodiment, the proportion of solvent or emollient in the total raw materials for the esterification reaction is in the range of 0% to 40% by weight. In one embodiment, the proportion of solvent or emollient in the total raw materials for the esterification reaction is in the range of 0% to 30% by weight. In one embodiment, the proportion of solvent or emollient in the total raw materials for the esterification reaction is in the range of 0% to 20% by weight. In one embodiment, the proportion of solvent or emollient in the total raw materials for the esterification reaction is in the range of 0% to 10% by weight. In one embodiment, the proportion of solvent or emollient in the total raw materials for the esterification reaction is in the range of 10% to 20% by weight. In one embodiment, the proportion of solvent or emollient in the total raw materials for the esterification reaction is in the range of 20% to 30% by weight.

[0129] Figure 1 is a bar graph showing the gelation times of elastomers prepared from dicarboxylic acid or tricarboxylic acid (A), monocarboxylic acid (B), and polyol (C) in four different ratios. The molar ratio of monocarboxylic acid (B) to polyol (C) was kept constant at 140°C under nitrogen protection. Gelation time is the length of time required for the crosslinking (gel fraction) of the polyester to reach 60% by weight, as measured by Soxhlet extraction as described in this application. As shown in Figure 1, the molar ratio of dicarboxylic acid or tricarboxylic acid (A) to polyol (C) has a significant effect on the gelation time in the synthesis of polyester elastomers. Gelation time is shorter when the A / B / C molar ratio is between 1.5 / 0.5 / 1 and 2 / 0.5 / 1.

[0130] Figure 3 is a bar graph showing the gelation times of elastomers prepared from dicarboxylic acid or tricarboxylic acid (A), monocarboxylic acid (B), and polyol (C) in four different ratios. The molar ratio of dicarboxylic acid or tricarboxylic acid (A) to polyol (C) was kept constant at 140°C under nitrogen protection. Gelation time is the length of time required for the crosslinking (gel fraction) of the polyester to reach 60% by weight, as measured by Soxhlet extraction as described in this application. As shown in Figure 3, the molar ratio of monocarboxylic acid (B) to polyol (C) has a significant effect on the gelation time in the synthesis of polyester elastomers. The shortest gelation time was observed at a molar ratio of A / B / C of 1.5 / 0.25 / 1. 3. Activating agent

[0131] In one embodiment, the preparation of the elastomer further includes an activator. In another embodiment, the preparation of the elastomer does not include an activator.

[0132] In one embodiment, the activator is selected from the group consisting of dimethyl dicarbonate, diethyl dicarbonate, dipropyl dicarbonate, di-tert-butyl dicarbonate, and combinations thereof. 4. Catalyst

[0133] In one embodiment, the preparation of the elastomer further includes a catalyst. In another embodiment, the preparation of the elastomer does not include a catalyst. However, it has been found that the reaction time is prolonged when a catalyst is not used.

[0134] In one embodiment, the catalyst is selected from the group consisting of methanesulfonic acid, p-toluenesulfonic acid, benzenesulfonic acid, sulfuric acid, amidosulfonic acid, sulfamic acid, sodium bisulfate, phosphoric acid, hydrochloric acid, hydrobromic acid, nitric acid, sodium hydroxide, potassium hydroxide, sodium methoxide, sodium ethoxide, potassium methoxide, potassium ethoxide, bismuth(III) neodecanoate, bismuth(III) citrate, bismuth(III) chloride, bismuth(III) acetate, bismuth(III) phosphate, tin chloride, tinpyrone, dibutyltin dilaurate, di-n-butyloxostannan, butylstannoic acid, zinc chloride, zinc bromide, zinc carboxylate, zinc oxide, zinc hydroxynitrate, zinc hydroxyacetate, triethylamine, tripropylamine, cocamidopropyl dimethylamine, stearamidopropyl dimethylamine, isostearamidopropyl dimethylamine, or combinations thereof. In one embodiment, the catalyst is p-toluenesulfonic acid, methanesulfonic acid, phosphoric acid, bismuth neodecanoate, or a combination thereof. In another embodiment, the catalyst is methanesulfonic acid.

[0135] In one embodiment, the catalyst is a salt. In one embodiment, the catalyst is selected from the group consisting of Yb(OTf)3, Sc(OTf)3, Hf(OTf)4, Bi(OTf)3, Al(OTf)3, Zn(OTf)2, Mg(ClO4)2, Cu(OTf)2, Ti(OCH(CH3)2)4, and combinations thereof. 5. Emollient or solvent

[0136] In one embodiment, the preparation of the polyester elastomer can be carried out in the presence of a solvent. The solvent can also act as an emollient, preferably as a cosmetic emollient. If the solvent also acts as an emollient, it also provides a softening, protective, moisturizing, and / or lubricating effect on the skin. In one embodiment, the solvent or emollient is bio-based or naturally derived. In one embodiment, the solvent or emollient is a triglyceride solvent, a monoester solvent, a diester solvent, a citrate ester solvent, an ether solvent, a carbonate solvent, a hydrocarbon solvent, a silicone solvent, or a combination thereof.

[0137] In one embodiment, the triglyceride solvent is of formula (IV), [ka]

[0138] During the ceremony

[0139] R 4 , R 5 , and R 6 Each of these is independently C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 It is a heteroalkene group.

[0140] In one embodiment, the solvent is of formula (IV), where R 4 , R 5 , and R 6 These are independently C2~C 17 Alkyl group or C2-C 17 It is an alkylene group.

[0141] In this embodiment, the solvent is a triglyceride solvent selected from the group consisting of caprylic / capric acid triglyceride, triheptanoin, corn oil, soybean oil, olive oil, rapeseed oil, cottonseed oil, coconut oil, almond oil, argan oil, rosehip seed oil, black seed oil, grapeseed oil, avocado oil, apricot kernel oil, geranium oil, lavender oil, rosehip oil, macadamia nut oil, eucalyptus oil, sardine oil, herring oil, safflower oil, linseed oil, sunflower oil, olive oil, canola oil, sesame oil, cottonseed oil, palm oil, rapeseed oil, tung oil, fish oil, peanut oil, cuphea oil, milkweed oil, glasswort oil, whale oil, castor oil, and combinations thereof. In this embodiment, the triglyceride solvent is selected from caprylic / capric acid triglyceride, triheptanoin, and combinations thereof.

[0142] In one embodiment, the solvent is a monoester solvent of formula (V), [ka]

[0143] During the ceremony

[0144] R 7 is C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 Heteroalkene group; and

[0145] R 8 is C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 It is a heteroalkene group.

[0146] In this embodiment, the solvent is a monoester solvent of formula (V), where R 7 is C5~C 17 Alkyl or C5~C 17It is an alkene group, and R 8 is C2~C 17 Alkyl group or C2-C 17 It is an alkene group.

[0147] In this embodiment, the solvent is caprylic / capric triglyceride, capric triglyceride, jojoba oil, jojoba esters, isopropyl jojobate, macadamia nut oil ethyl, isoamyl laurate, heptyl undecylenate, methylheptyl isostearate, isostearyl isostearate, glyceryl ricinoleate, isostearyl palmitate, myristyl myristate, octyldodecyl myristate, octyldodecyl hydroxystearate, myristyl Butyl phosphate, coconut oil ethylhexyl acid, ethylhexyl palmitate, ethylhexyl stearate, butyl stearate, decyl oleate, isocetyl behenate, isocetyl myristate, isocetyl palmitate, isocetyl stearate, isodecyl oleate, isopropyl isostearate, isopropyl myristate, isopropyl palmitate, oleyl oleate, propylene glycol laurate, octyldodecyl erucate, alkyl lactate C 12 ~C 13 , alkyl lactate C 12 ~C 15 Isostearyl lactate, glycereth-5 lactate, lauryl lactate, myristyl lactate, oleyl lactate, laureth-2 benzoate, alkyl C benzoate 12 ~C 15 , benzoic acid C 12 ~C 15 Pareth-3, Dipropylene Glycol Benzoate, Isodecyl Salicylate, Alkyl C Salicylate 12 ~C 15The monoester solvent is selected from the group consisting of tridecyl salicylate, ethylhexyl isononanoate, cetyl ethylhexanoate, isononyl isononanoate, isodecyl ethylhexanoate, isodecyl isononanoate, tridecyl ethylhexanoate, isotridecyl isononanoate, isostearyl isononanoate, cetearyl isononanoate, laureth-2 ethylhexanoate, cetearyl ethylhexanoate, isodecyl neopentanoate, isostearyl neopentanoate, myristyl neopentanoate, isostearyl behenate, octyldodecyl neopentanoate, tridecyl neopentanoate, and combinations thereof. In this embodiment, the monoester solvent is caprylic / capric coconut alkyl, caprylic / capric coconut alkyl, jojoba oil, isoamyl laurate, methylheptyl isostearate, alkyl lactate C 12 ~C 13 , alkyl lactate C 12 ~C 15 The following are selected from the group consisting of lauryl lactate, ethylhexyl isononanoate, cetyl ethylhexanoate, isononyl isononanoate, isodecyl ethylhexanoate, isodecyl isononanoate, tridecyl ethylhexanoate, isotridecyl isononanoate, isostearyl isononanoate, cetearyl isononanoate, and combinations thereof. In this embodiment, the monoester solvent is selected from the group consisting of caprylic / capric coconut alkyl, caprylic / capric coconut alkyl, isoamyl laurate, isononyl isononanoate, heptyl undecylenate, jojoba oil, jojoba esters, and combinations thereof.

[0148] In one embodiment, the solvent is:

[0149] (a) Diester solvent of formula (VI) [ka]

[0150] During the ceremony

[0151] R 9 is C1~C 35Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 Heteroalkene group; and

[0152] R 10 and R 11 These are independently C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 heteroalkene group; or

[0153] (b) Diester solvent of formula (VII) [ka]

[0154] During the ceremony

[0155] R 9 is C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 Heteroalkene group; and

[0156] R 10 and R 11 H, C1~C are independent. 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 heteroalkene group; or

[0157] (c) Diester solvent of formula (VIII) [ka]

[0158] During the ceremony

[0159] R 9 and R 10These are independently C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 Heteroalkene group; and

[0160] R 11 H, C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 It is a heteroalkene group.

[0161] In one embodiment, the solvent is a diester solvent of formula (VI), formula (VII), or formula (VIII), where R 11 is C2~C 10 Alkyl group or C2-C 10 Alkene group, and R 9 and R 10 These are independently C1~C 12 Alkyl group or C2-C 12 It is an alkene group.

[0162] In one embodiment, the diester solvent is diethyl succinate, dibutyl succinate, diethylhexyl succinate, diisopropyl sebacate, dimethyl sebacate, diethyl sebacate, dibutyl sebacate, diisostearyl dimer, diisostearyl malate, isostearyl stearoyl stearate, isocetyl stearoyl stearate, octyldodecyl stearoyl stearate, diethylhexyl malate, diethylhexyl maleate, dipropylene glycol dibenzoate, dicaprylate adipate Selected from the group consisting of dicaprylyl maleate, diisopropyl dimer, diisopropyl adipate, diisobutyl adipate, diisopropyl sebacate, diisostearyl dimer, diethylhexyl succinate, diethylene glycol diethylhexanoate, neopentyl glycol dicaprate, propylene glycol dicaprylate / caprate, neopentyl glycol diisostearate, neopentyl glycol diethylhexanoate, neopentyl glycol diheptanoate, and combinations thereof. In this embodiment, the diester solvent is selected from the group consisting of dicapryl adipate, dicaprylyl maleate, diisopropyl adipate, diisobutyl adipate, diethyl succinate, dibutyl succinate, diethylhexyl succinate, diisopropyl sebacate, dimethyl sebacate, diethyl sebacate, dibutyl sebacate, neopentyl glycol diethylhexanoate, neopentyl glycol diheptanoate, and combinations thereof.

[0163] In one embodiment, the solvent is a citrate ester solvent of formula (IX), [ka]

[0164] During the ceremony

[0165] R 12 , R 13 , R 14 , and R 15 H, C1~C are independent. 35 Alkyl alkyl groups, C1-C 35Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 A heteroalkene group, where R 12 , R 13 , R 14 , and R 15 At least one of them is not H.

[0166] In one embodiment, the solvent is a citrate ester solvent of formula (IX), where R 12 , R 13 , and R 14 These are independently C1~C 10 Alkyl group or C2-C 10 Alkene group, and R 15 It is an acetyl group.

[0167] In one embodiment, the solvent is a citrate ester solvent selected from the group consisting of tricaprylyl citrate, triisostearyl citrate, triisocetyl citrate, trioctyldodecyl citrate, triethyl citrate, tributyl citrate, acetyltriethyl citrate, acetyltributyl citrate, trioctyldodecyl citrate, triisocetyl citrate, and combinations thereof.

[0168] In one embodiment, the solvent is an ether solvent of formula (X), [ka]

[0169] During the ceremony

[0170] R 16 and R 17 H and C2~C are independent of each other. 20 Alkyl alkyl groups, C2-C 20 Heteroalkyl groups, C2-C 20 Alkene group, or C2~C 20 A heteroalkene group, where R 16 and R 17 At least one of them is not H.

[0171] In one embodiment, the solvent is an ether solvent of formula (X), where R 16 and R 17 These are independently C2~C 20 It is an alkyl group.

[0172] In one embodiment, the solvent is an ether solvent selected from the group consisting of dicaprylyl ether, didecyl ether, panthenyl ethyl ether, dicetyl ether, dimyristyl ether, distearyl ether, dilauryl ether, and combinations thereof.

[0173] In one embodiment, the solvent is a carbonate solvent of formula (XI), [ka]

[0174] During the ceremony

[0175] R 18 and R 19 H and C2~C are independent of each other. 20 Alkyl alkyl groups, C2-C 20 Heteroalkyl groups, C2-C 20 Alkene group, or C2~C 20 It is a heteroalkene group.

[0176] In this embodiment, the solvent is a carbonate solvent of formula (XI), where R 18 and R 19 These are independently C2~C 20 It is an alkyl group.

[0177] In this embodiment, the solvent is a carbonate solvent selected from the group consisting of dicaprylyl carbonate, diethylhexyl carbonate, and combinations thereof.

[0178] In this embodiment, the solvent has a number of carbon atoms from C4 to C 60It is a hydrocarbon. In another embodiment, the solvent has a number of carbon atoms C 10 From C 50 It is a hydrocarbon. In a further embodiment, the solvent has a number of carbon atoms C 20 From C 40 It is a hydrocarbon.

[0179] In this embodiment, the solvent is farnesene, hydrogenated farnesene, coconut alkanes, coconut / palm kernel alkanes, C9-C 12 Alkane, C 10 ~C 13 Alkane, C 12 ~C 17 Alkane, C 13 ~C 14 Alkane, C 13 ~C 15 Alkane, C 14 ~C 17 Alkane, C 14 ~C 19 Alkane, C 14 ~C 20 Alkane, C 14 ~C 22 Alkane, C 15 ~C 19 Alkane, C 21 ~C 28 Alkane, C 17 ~C 23 Alkane, C9~C 12 Isoalkanes, C9~C 13 Isoalkanes, C9~C 14 Isoalkanes, C9~C 16 Isoalkanes, C 10 ~C 11 Isoalkanes, C 10 ~C 12 Isoalkanes, C 10 ~C 13 Isoalkanes, C 11 ~C 12 Isoalkanes, C 11 ~C 13 Isoalkanes, C 11 ~C 14 Isoalkanes, C 12 ~C 14 Isoalkanes, C 12 ~C 15 Isoalkanes, C12 ~C 20 Isoalkanes, C 13 ~C 14 Isoalkanes, C 13 ~C 16 Isoalkanes, C 14 ~C 16 Isoalkanes, C 15 ~C 19 Isoalkanes, C 10 ~C 16 Olefin, C 12 ~C 18 Olefin, C 18 ~C 26 Olefin, C 20 Olefin, C 20 ~C 24 Olefin, C 24 ~C 30 Olefin, C 26 ~C 28 Olefin, C 26 ~C 54 Olefin, C 28 ~C 36 Olefin, C 28 ~C 52 Olefin, C 30 ~C 38 Olefin, C 30 ~C 45 Olefins, C4~C 12 Olefins, C4-C6 olefins, C5-C6 olefins, hydrogenated poly(C6 / C) 10 / C 14 Olefins), hydrogenated poly(C6~C 12 Olefins), hydrogenated poly(C6~C 14 Olefins), hydrogenated poly(C6~C 20 Olefin), Hydrogenated Poly(C8 / C) 12 Olefin), Poly(C 20 ~C 28 Olefin), Poly(C 30 ~C 45 Olefin), Poly(C4~C 12 Olefin), Poly(C6~C 14 Olefin), hexadecene, C 32 Alkane, C 32 Isoalkanes, C 54 Alkane, C54 The hydrocarbon solvent is selected from the group consisting of isoalkanes, diethylhexylcyclohexane, undecane, tridecane, tetradecane, pentadecane, hexadecane, octadecane, docosane, squalane, hydrogenated polyisobutene, polybutene, hydrogenated polydecene, hydrogenated didecene, mineral oil, liquidum, petrolatum, dodecane, isohexadecane, isododecane, isoeicosane, and combinations thereof. In this embodiment, the hydrocarbon solvent is squalane, farnesene, hydrogenated farnesene, coconut alkanes, C9-C 12 Alkane, C 13 ~C 15 Alkane, C 14 ~C 19 Alkane, C 14 ~C 20 Alkane, C 14 ~C 22 Alkane, C 15 ~C 19 Alkane, C 13 ~C 16 Isoalkane, dodecane, undecane, tridecane, tetradecane, pentadecane, hexadecane, hexadecene, octadecane, squalane, isododecane, isohexadecane, C 32 Alkane, C 32 Isoalkanes, C 54 Alkane, C 54 The hydrocarbon solvent is selected from the group consisting of isoalkanes and combinations thereof. In this embodiment, the hydrocarbon solvent is squalane, farnesene hydrogenate, coconut alkanes, C9-C 12 Alkane, C 13 ~C 15 Alkane, C 13 ~C 16 Isoalkanes, C 14 ~C 19 Alkanes, dodecane, tetradecane, isododecane, hexadecane, octadecane, hexadecene, C 32 Alkane, C 32 Isoalkanes, C 54 Alkane, C 54 The selection is made from the group consisting of isoalkanes and combinations thereof.

[0180] In this embodiment, the hydrocarbon solvent is squalane, C 32 Alkane, C 32 Isoalkanes, C 54 Alkane, C 54 The selection is made from the group consisting of isoalkanes and combinations thereof.

[0181] In this embodiment, the solvent is a silicone solvent selected from the group consisting of dimethicone, phenyl dimethicone, caprylyl methicone, ethyl trisiloxane, cyclotetrasiloxane, cyclopentasiloxane, cyclohexasiloxane, and combinations thereof.

[0182] In one embodiment, a specified amount of solvent is used to prepare the polyester elastomer. In one embodiment, the amount of solvent is 0% to 70% of the total weight of the dicarboxylic acid or tricarboxylic acid (A), monocarboxylic acid (B), and polyol (C). In one embodiment, the amount of solvent is 0% to 50% of the total weight of the dicarboxylic acid or tricarboxylic acid (A), monocarboxylic acid (B), and polyol (C). In one embodiment, the amount of solvent is 0% to 40% of the total weight of the dicarboxylic acid or tricarboxylic acid (A), monocarboxylic acid (B), and polyol (C). In one embodiment, the amount of solvent is 0% to 30% of the total weight of the dicarboxylic acid or tricarboxylic acid (A), monocarboxylic acid (B), and polyol (C). In one embodiment, the range of the solvent is 0% to 20% of the total weight of the dicarboxylic acid or tricarboxylic acid (A), monocarboxylic acid (B), and polyol (C). In one embodiment, the amount of solvent is 10% to 50% of the total weight of the dicarboxylic acid or tricarboxylic acid (A), monocarboxylic acid (B), and polyol (C). In one embodiment, the amount of solvent is 50%, 40%, 30%, 20%, or 10% of the total weight of the dicarboxylic acid or tricarboxylic acid (A), monocarboxylic acid (B), and polyol (C).

[0183] In one embodiment, the amount of solvent is 0% to 30% of the total weight of dicarboxylic acid or tricarboxylic acid (A) and monocarboxylic acid (B). In another embodiment, the amount of solvent is 0% to 20% of the total weight of dicarboxylic acid or tricarboxylic acid (A) and monocarboxylic acid (B). In yet another embodiment, the amount of solvent is 0% to 10% of the total weight of dicarboxylic acid or tricarboxylic acid (A) and monocarboxylic acid (B). In yet another embodiment, the amount of solvent is 10% to 30% of the total weight of dicarboxylic acid or tricarboxylic acid (A) and monocarboxylic acid (B). In yet another embodiment, the solvent is 30%, 20%, or 10% of the total weight of dicarboxylic acid or tricarboxylic acid (A) and monocarboxylic acid (B).

[0184] In one embodiment, no solvent is used to prepare the elastomer.

[0185] In one embodiment, a solvent is used to prepare a polyester elastomer, which is then removed to form a polyester elastomer powder. In another embodiment, a solvent / emollient may be added again to the polyester elastomer powder, and a shear force is optionally applied as described above to form a polyester elastomer gel.

[0186] In one embodiment, polyester elastomer is C 36 Dimer acid, diglycerin, and isostearic acid are prepared using approximately 10% to approximately 40% squalane by weight, based on the total weight of the polyester elastomer and squalane. That is, in one embodiment, the present invention is C 36 This invention relates to a polyester elastomer composition prepared from dimer acid, diglycerin, isostearic acid, and squalane, containing approximately 10% to 40% squalane by weight.

[0187] In one embodiment, polyester elastomers are hydrogenated C 36It is prepared from dimer acid, diglycerol, and oleic acid without the need for a solvent or emollient. 6.Temperature

[0188] In one embodiment, a method for preparing an elastomer comprises reacting at least one dicarboxylic acid or tricarboxylic acid, at least one monocarboxylic acid, and at least one polyol while mixing at a predetermined temperature until an elastomer is formed. In another embodiment, a method for preparing an elastomer comprises reacting at least one dicarboxylic acid or tricarboxylic acid, at least one monocarboxylic acid, at least one polyol, optionally at least one solvent or emollient, and optionally a catalyst while mixing at a predetermined temperature until an elastomer is formed. In another embodiment, the temperature range is 30°C to 250°C.

[0189] In one embodiment, the reaction occurs at temperatures from approximately 30°C to approximately 250°C. In another embodiment, the reaction occurs at temperatures from approximately 60°C to approximately 250°C. In another embodiment, the reaction occurs at temperatures from approximately 30°C to approximately 125°C or from approximately 40°C to approximately 100°C. In another embodiment, the reaction occurs at approximately 30°C, approximately 35°C, approximately 40°C, approximately 45°C, approximately 50°C, approximately 55°C, approximately 60°C, approximately 65°C, approximately 70°C, approximately 75°C, approximately 80°C, approximately 85°C, approximately 90°C, approximately 95°C, approximately 100°C, approximately 105°C, approximately 110°C, approximately 115°C, approximately 120°C, approximately 125°C, approximately 130°C, approximately 135°C, approximately 140°C, approximately 145°C It occurs at temperatures of approximately 150°C, 155°C, 160°C, 165°C, 170°C, 175°C, 180°C, 185°C, 190°C, 195°C, 200°C, 205°C, 210°C, 215°C, 220°C, 225°C, 230°C, 235°C, 240°C, 245°C, or 250°C. 7. Time

[0190] In one embodiment, the reaction time is approximately 12 to 150 hours. In another embodiment, the reaction time is approximately 6 to 24 hours. In yet another embodiment, the reaction time is approximately 8 to 27 hours. In one instance, reaction times were approximately 6 hours, 6.5 hours, 7 hours, 7.5 hours, 8 hours, 8.5 hours, 9 hours, 9.5 hours, 10 hours, 10.5 hours, 11 hours, 11.5 hours, 12 hours, 12.5 hours, 13 hours, 13.5 hours, 14 hours, 14.5 hours, 15 hours, 15.5 hours, 16 hours, 16.5 hours, 17 hours, 17.5 hours, 18 hours, 18.5 hours, 19 hours, 19.5 hours, 20 hours, 20.5 hours, 21 hours, 21.5 hours, 22 hours, 22.5 hours, 23 hours, 23.5 hours, 24 hours, 24.5 hours, 25 hours, 25.5 hours, and 26 hours. The duration is approximately 26.5 hours, 27 hours, 28 hours, 29 hours, 30 hours, 31 hours, 32 hours, 33 hours, 34 hours, 35 hours, 36 hours, 37 hours, 38 hours, 39 hours, 40 hours, 41 hours, 42 hours, 43 hours, 44 hours, 45 hours, 46 hours, 47 hours, 48 ​​hours, 49 hours, 50 hours, 55 hours, 60 hours, 65 hours, 70 hours, 75 hours, 80 hours, 85 hours, 90 hours, 95 hours, 100 hours, 105 hours, 110 hours, 115 hours, 120 hours, 125 hours, 130 hours, 135 hours, 140 hours, 145 hours, or 150 hours.

[0191] The reaction time can be adjusted by determining the gel fraction to be achieved, and preferably the reaction time is set so that the gel fraction of the polyester elastomer is greater than 60%. A method for measuring the gel fraction in the polyester elastomer is described below. 8. Removal of by-products

[0192] In one embodiment, the method further includes removing water and alcohol by-products from the reactants. In a further embodiment, water and alcohol by-products are removed from the reaction system by mixing and heating the reactants. In one embodiment, water and alcohol by-products are removed by heating the reactants above about 120°C. In one embodiment, water and alcohol by-products are removed from the reactants by a nitrogen stream, vacuum, or a combination thereof. In one embodiment, water is removed by nitrogen stripping and vacuum, which affects the reaction time. III. Method for preparing polyester elastomer compositions 1.Form

[0193] In one embodiment, the polyester elastomer composition is a gel or a powder.

[0194] In one embodiment, the polyester elastomer is treated into a gel as described in this application. 2. Ingredients

[0195] In one embodiment, the polyester elastomer comprises only crosslinked polyester without a solvent or emollient. In another embodiment, the polyester elastomer comprises polyester without a solvent or emollient. In yet another embodiment, the polyester elastomer comprises crosslinked polyester together with a solvent or emollient. In yet another embodiment, the polyester elastomer comprises polyester together with a solvent or emollient.

[0196] In one embodiment, the polyester elastomer composition consists solely of polyester elastomer. In another embodiment, the polyester elastomer composition consists of polyester elastomer together with a solvent or emollient. In yet another embodiment, the polyester elastomer is composed of polyester elastomer together with one or more solvents or emollients. Solvents or emollients that can be used to prepare the polyester elastomer composition are described herein and can be selected from the solvents or emollients defined herein. In yet another embodiment, the amount of polyester elastomer in the polyester elastomer composition is in the range of 5% to 100% by weight. In yet another embodiment, the amount of polyester elastomer in the polyester elastomer composition is in the range of 5% to 70% by weight. In yet another embodiment, the amount of polyester elastomer in the polyester elastomer composition is in the range of 10% to 60% by weight. In yet another embodiment, the amount of polyester elastomer in the polyester elastomer composition is in the range of 20% to 50% by weight.

[0197] In one embodiment, the polyester elastomer consists solely of crosslinked polyester without any solvent or emollient. In such cases, it is typically a powder. In another embodiment, the polyester elastomer consists of crosslinked polyester together with a solvent or emollient. In yet another embodiment, the polyester elastomer consists of crosslinked polyester together with one or more solvents or emollients. Solvents or emollients that can be used to prepare the polyester elastomer composition are described herein and can be selected from the solvents defined herein. In yet another embodiment, the polyester elastomer is a powder.

[0198] In another embodiment, the crosslinked polyester in the polyester elastomer composition is in the range of 5% to 50% by weight. In another embodiment, the crosslinked polyester in the polyester elastomer composition is in the range of 5% to 30% by weight. In another embodiment, the crosslinked polyester in the polyester elastomer composition is in the range of 10% to 30% by weight. Solvents or emollients that can be used to prepare the polyester elastomer composition are described herein, or can be selected from the solvents or emollients defined herein.

[0199] In some embodiments, the polyester elastomer composition comprises at least one solvent or emollient added to the polyester elastomer during the shearing process. Solvents or emollients usable for preparing the polyester elastomer composition are described herein and can be selected from the solvents defined herein. In some embodiments, the weight of the solvent or emollient is about 20% to about 95% of the weight of the composition. In some embodiments, the weight of the solvent or emollient is about 20% to about 50% of the weight of the composition. In some embodiments, the weight of the solvent or emollient is about 50% to about 90% of the weight of the composition. In some embodiments, the weight of the solvent or emollient is about 70% to about 90% of the weight of the composition. In one embodiment, the polyester elastomer composition contains about 50% to about 90% by weight of solvent or emollient, about 50% to about 80% by weight of solvent or emollient, about 50% to about 70% by weight of solvent or emollient, or about 50% to about 60% by weight of solvent or emollient. In some embodiments, the polyester elastomer composition contains about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, or about 90% by weight of solvent or emollient. 3. Processing

[0200] In one embodiment, the obtained polyester elastomer is crushed or processed to form polyester elastomer powder. In another embodiment, the polyester elastomer is processed by a three-roll mill to form polyester elastomer powder.

[0201] The polyester elastomer composition can also be obtained as a powder if it still contains the solvent or emollient added to the reaction mixture.

[0202] In one embodiment, the composition is prepared by combining a polyester elastomer with one or more solvents or emollients to form a polyester elastomer gel.

[0203] In one embodiment, the polyester elastomer and the solvent / emollient mixture are treated in a homogenizer and optionally subjected to shear force, for example, by a high-shear disper mixer, to produce a gel.

[0204] In one embodiment, the polyester elastomer is swollen in a solvent or emollient before being processed to form a gel at a temperature below 23°C. In one embodiment, the swelling time of the polyester elastomer in the solvent or emollient is from one hour to one week. In one embodiment, the elastomer is swollen in the solvent or emollient for 10 minutes to one week, 10 minutes to four days, 10 minutes to three days, 10 minutes to two days, 10 minutes to one day, 10 minutes to twelve hours, 10 minutes to six hours, 10 minutes to three hours, 10 minutes to two hours, 10 minutes to one hour, or 10 minutes to thirty minutes.

[0205] Once the initial polyester elastomer has been prepared, an additional amount of at least one solvent or emollient, different from the solvent or emollient used to prepare the initial elastomer, may be added and mixed. In some embodiments, the at least one solvent or emollient used to prepare the elastomer is the same as the at least one solvent or emollient used to prepare the elastomer composition. The addition of the additional amount of at least one solvent or emollient dilutes the gel composition and thereby adjusts its viscosity.

[0206] This disclosure provides a method for preparing a polyester elastomer composition, the method being:

[0207] (i) forming a swollen polymer elastomer by combining a polyester elastomer with at least one solvent or emollient; and

[0208] (ii) The process includes forming a polyester elastomer composition by applying a shear force to a swollen polyester elastomer.

[0209] In one embodiment, the polyester elastomer composition is a powder, gel, or paste.

[0210] In one embodiment, at least one solvent or emollient is selected from the solvents or emollients described herein. 4. Emollient

[0211] In one embodiment, the preparation of the polyester elastomer gel is carried out in the presence of an emollient. In one embodiment, the emollient is bio-based or naturally derived. In one embodiment, the emollient is a triglyceride emollient, a monoester emollient, a diester emollient, a citrate ester emollient, an ether emollient, a carbonate emollient, a hydrocarbon emollient, a silicone emollient, or a combination thereof.

[0212] In one embodiment, the emollient is a triglyceride emollient of formula (IV), [ka]

[0213] During the ceremony

[0214] R 4 , R 5 , and R 6 Each of them is independently C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 It is a heteroalkene group.

[0215] In one embodiment, the emollient is of formula (IV), where R 4 , R 5 , and R 6 These are independently C2~C 17 Alkyl group or C2-C 17 It is an alkylene group.

[0216] In one embodiment, the emollient is a triglyceride emollient selected from the group consisting of caprylic / capric acid triglyceride, triheptanoin, corn oil, soybean oil, olive oil, rapeseed oil, cottonseed oil, coconut oil, almond oil, argan oil, rosehip seed oil, black seed oil, grapeseed oil, avocado oil, apricot kernel oil, geranium oil, lavender oil, rosehip oil, macadamia nut oil, eucalyptus oil, sardine oil, herring oil, safflower oil, linseed oil, sunflower oil, olive oil, canola oil, sesame oil, cottonseed oil, palm oil, rapeseed oil, tung oil, fish oil, peanut oil, cuphea oil, milkweed oil, glasswort oil, whale oil, castor oil, and combinations thereof. In one embodiment, the triglyceride emollient is selected from caprylic / capric triglyceride, triheptanoin, and combinations thereof.

[0217] In one embodiment, the emollient is a monoester emollient of formula (V), [ka]

[0218] During the ceremony

[0219] R 7 is C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 Heteroalkene group; and

[0220] R 8 is C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 It is a heteroalkene group.

[0221] In one embodiment, the emollient is a monoester emollient of formula (V), where R 7 is C5~C 17Alkyl or C5~C 17 Alkene group, and R 8 is C2~C 17 Alkyl group or C2-C 17 It is an alkene group.

[0222] In one embodiment, the emollient is coconut alkyl caprylate, coconut alkyl caprate, jojoba oil, jojoba esters, isopropyl jojoba fatty acid, macadamia nut oil ethyl, isoamyl laurate, heptyl undecylenate, methylheptyl isostearate, isostearyl isostearate, glyceryl ricinoleate, isostearyl palmitate, myristyl myristate, octyldodecyl myristate, octyldodecyl hydroxystearate, mi Butyl lysate, ethylhexyl coconut oil, ethylhexyl palmitate, ethylhexyl stearate, butyl stearate, decyl oleate, isocetyl behenate, isocetyl myristate, isocetyl palmitate, isocetyl stearate, isodecyl oleate, isopropyl isostearate, isopropyl myristate, isopropyl palmitate, oleyl oleate, propylene glycol laurate, octyldodecyl erucate, alkyl lactate C 12 ~C 13 , alkyl lactate C 12 ~C 15 Isostearyl lactate, glycereth-5 lactate, lauryl lactate, myristyl lactate, oleyl lactate, laureth-2 benzoate, alkyl C benzoate 12 ~C 15 , benzoic acid C 12 ~C 15 Pareth-3, Dipropylene Glycol Benzoate, Isodecyl Salicylate, Alkyl C Salicylate 12 ~C 15The monoester emollient is selected from the group consisting of tridecyl salicylate, ethylhexyl isononanoate, cetyl ethylhexanoate, isononyl isononanoate, isodecyl ethylhexanoate, isodecyl isononanoate, tridecyl ethylhexanoate, isotridecyl isononanoate, isostearyl isononanoate, cetearyl isononanoate, laureth-2 ethylhexanoate, cetearyl ethylhexanoate, isodecyl neopentanoate, isostearyl neopentanoate, myristyl neopentanoate, isostearyl behenate, octyldodecyl neopentanoate, tridecyl neopentanoate, and combinations thereof. In one embodiment, the monoester emollient is a monoester emollient selected from the group consisting of caprylic / capric coconut alkyl, caprylic / capric coconut alkyl, jojoba oil, isoamyl laurate, methylheptyl isostearate, alkyl lactate C 12 ~C 13 , alkyl lactate C 12 ~C 15 The following are selected from the group consisting of lauryl lactate, ethylhexyl isononanoate, cetyl ethylhexanoate, isononyl isononanoate, isodecyl ethylhexanoate, isodecyl isononanoate, tridecyl ethylhexanoate, isotridecyl isononanoate, isostearyl isononanoate, cetearyl isononanoate, and combinations thereof. In one embodiment, the monoester emollient is selected from the group consisting of caprylic / capric coconut alkyl, capric coconut alkyl, isoamyl laurate, isononyl isononanoate, heptyl undecylenate, jojoba oil, jojoba esters, and combinations thereof.

[0223] In one embodiment, the emollient is:

[0224] (a) Diester emollient of formula (VI) [ka]

[0225] During the ceremony

[0226] R 9is C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 Heteroalkene group; and

[0227] R 10 and R 11 These are independently C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 heteroalkene group; or

[0228] (b) Diester emollient of formula (VII) [ka]

[0229] During the ceremony

[0230] R 9 is C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 Heteroalkene group; and

[0231] R 10 and R 11 H, C1~C are independent. 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 heteroalkene group; or

[0232] (c) Diester emollient of formula (VIII) [ka]

[0233] During the ceremony

[0234] R9 and R 10 These are independently C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 Heteroalkene group; and

[0235] R 11 H, C1~C 35 Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 It is a heteroalkene group.

[0236] In one embodiment, the emollient is a diester emollient of formula (VI), formula (VII), or formula (VIII), where R 11 is C2~C 10 Alkyl group or C2-C 10 Alkene group, and R 9 and R 10 These are independently C1~C 12 Alkyl group or C2-C 12 It is an alkene group.

[0237] In one embodiment, the diester emollient is diethyl succinate, dibutyl succinate, diethylhexyl succinate, diisopropyl sebacate, dimethyl sebacate, diethyl sebacate, dibutyl sebacate, diisostearyl dimer, diisostearyl malate, isostearyl stearoyl stearate, isocetyl stearoyl stearate, octyldodecyl stearoyl stearate, diethylhexyl malate, diethylhexyl maleate, dipropylene glycol dibenzoate, dicaprate adipate Selected from the group consisting of lyl, dicaprylyl maleate, diisopropyl dimer, diisopropyl adipate, diisobutyl adipate, diisopropyl sebacate, diisostearyl dimer, diethylhexyl succinate, diethylene glycol diethylhexanoate, neopentyl glycol dicaprate, propylene glycol dicaprylate / caprate, neopentyl glycol diisostearate, neopentyl glycol diethylhexanoate, neopentyl glycol diheptanoate, and combinations thereof. In one embodiment, the diester emollient is selected from the group consisting of dicapryl adipate, dicaprylyl maleate, diisopropyl adipate, diisobutyl adipate, diethyl succinate, dibutyl succinate, diethylhexyl succinate, diisopropyl sebacate, dimethyl sebacate, diethyl sebacate, dibutyl sebacate, neopentyl glycol diethylhexanoate, neopentyl glycol diheptanoate, and combinations thereof.

[0238] In one embodiment, the emollient is a citrate ester emollient of formula (IX), [ka]

[0239] During the ceremony

[0240] R 12 , R 13 , R 14 , and R 15 H, C1~C are independent. 35Alkyl alkyl groups, C1-C 35 Heteroalkyl groups, C2-C 35 Alkene group, or C2~C 35 A heteroalkene group, where R 12 , R 13 , R 14 , and R 15 At least one of them is not H.

[0241] In one embodiment, the emollient is a citrate ester emollient of formula (IX), where R 12 , R 13 , and R 14 These are independently C1~C 10 Alkyl group or C2-C 10 Alkene group, and R 15 It is an acetyl group.

[0242] In one embodiment, the emollient is a citrate ester emollient selected from the group consisting of tricaprylyl citrate, triisostearyl citrate, triisocetyl citrate, trioctyldodecyl citrate, triethyl citrate, tributyl citrate, acetyltriethyl citrate, acetyltributyl citrate, trioctyldodecyl citrate, triisocetyl citrate, and combinations thereof.

[0243] In one embodiment, the emollient is the ether emollient of formula (X), [ka]

[0244] During the ceremony

[0245] R 16 and R 17 H and C2~C are independent of each other. 20 Alkyl alkyl groups, C2-C 20 Heteroalkyl groups, C2-C 20 Alkene group, or C2~C 20 A heteroalkene group, where R 16 and R 17At least one of them is not H.

[0246] In one embodiment, the emollient is an ether emollient of formula (X), where R 16 and R 17 These are independently C2~C 20 It is an alkyl group.

[0247] In one embodiment, the emollient is an ether emollient selected from the group consisting of dicaprylyl ether, didecyl ether, panthenyl ethyl ether, dicetyl ether, dimyristyl ether, distearyl ether, dilauryl ether, and combinations thereof. In one embodiment, the ether emollient is selected from the group consisting of dicaprylyl ether, didecyl ether, and combinations thereof.

[0248] In one embodiment, the emollient is a carbonate emollient of formula (XI), [ka]

[0249] During the ceremony

[0250] R 18 and R 19 H and C2~C are independent of each other. 20 Alkyl alkyl groups, C2-C 20 Heteroalkyl groups, C2-C 20 Alkene group, or C2~C 20 It is a heteroalkene group.

[0251] In one embodiment, the emollient is a carbonate emollient of formula (XI), where R 18 and R 19 These are independently C2~C 20 It is an alkyl group.

[0252] In one embodiment, the emollient is a carbonate emollient selected from the group consisting of dicaprylyl carbonate, diethylhexyl carbonate, and combinations thereof.

[0253] In one embodiment, the emollient has a number of carbon atoms from C4 to C 60 It is a hydrocarbon. In one embodiment, the emollient has a number of carbon atoms C 10 From C 50 It is a hydrocarbon. In one embodiment, the emollient has a number of carbon atoms C 20 From C 40 It is a hydrocarbon.

[0254] In one embodiment, the emollient is farnesene, hydrogenated farnesene, coconut alkanes, coconut / palm kernel alkanes, C9-C 12 Alkane, C 10 ~C 13 Alkane, C 12 ~C 17 Alkane, C 13 ~C 14 Alkane, C 13 ~C 15 Alkane, C 14 ~C 17 Alkane, C 14 ~C 19 Alkane, C 14 ~C 20 Alkane, C 14 ~C 22 Alkane, C 15 ~C 19 Alkane, C 21 ~C 28 Alkane, C 17 ~C 23 Alkane, C9~C 12 Isoalkanes, C9~C 13 Isoalkanes, C9~C 14 Isoalkanes, C9~C 16 Isoalkanes, C 10 ~C 11 Isoalkanes, C 10 ~C 12 Isoalkanes, C 10 ~C 13 Isoalkanes, C 11 ~C12 Isoalkanes, C 11 ~C 13 Isoalkanes, C 11 ~C 14 Isoalkanes, C 12 ~C 14 Isoalkanes, C 12 ~C 15 Isoalkanes, C 12 ~C 20 Isoalkanes, C 13 ~C 14 Isoalkanes, C 13 ~C 16 Isoalkanes, C 14 ~C 16 Isoalkanes, C 15 ~C 19 Isoalkanes, C 10 ~C 16 Olefin, C 12 ~C 18 Olefin, C 18 ~C 26 Olefin, C 20 Olefin, C 20 ~C 24 Olefin, C 24 ~C 30 Olefin, C 26 ~C 28 Olefin, C 26 ~C 54 Olefin, C 28 ~C 36 Olefin, C 28 ~C 52 Olefin, C 30 ~C 38 Olefin, C 30 ~C 45 Olefins, C4~C 12 Olefins, C4-C6 olefins, C5-C6 olefins, hydrogenated poly(C6 / C) 10 / C 14 Olefins), hydrogenated poly(C6~C 12 Olefins), hydrogenated poly(C6~C 14 Olefins), hydrogenated poly(C6~C 20 Olefin), Hydrogenated Poly(C8 / C) 12 Olefin), Poly(C 20 ~C 28 Olefin), Poly(C30 ~C 45 Olefin), Poly(C4~C 12 Olefin), Poly(C6~C 14 Olefin), hexadecene, C 32 Alkane, C 32 Isoalkanes, C 54 Alkane, C 54 The hydrocarbon emollient is selected from the group consisting of isoalkanes, diethylhexylcyclohexane, undecane, tridecane, tetradecane, pentadecane, hexadecane, octadecane, docosane, squalane, hydrogenated polyisobutene, polybutene, hydrogenated polydecene, hydrogenated didecene, mineral oil, liquidum, petrolatum, dodecane, isohexadecane, isododecane, isoeicosane, and combinations thereof. In one embodiment, the hydrocarbon emollient is squalane, farnesene, hydrogenated farnesene, coconut alkanes, C9-C 12 Alkane, C 13 ~C 15 Alkane, C 14 ~C 19 Alkane, C 14 ~C 20 Alkane, C 14 ~C 22 Alkane, C 15 ~C 19 Alkane, C 13 ~C 16 Isoalkane, dodecane, undecane, tridecane, tetradecane, pentadecane, hexadecane, hexadecene, octadecane, squalane, isododecane, isohexadecane, C 32 Alkane, C 32 Isoalkanes, C 54 Alkane, C 54 The group is selected from isoalkanes and combinations thereof. In one embodiment, the hydrocarbon emollient is squalane, hydrogenated farnesene, coconut alkanes, C9-C 12 Alkane, C 13 ~C 15 Alkane, C 13 ~C 16 Isoalkanes, C 14 ~C 19Alkanes, dodecane, tetradecane, isododecane, hexadecane, octadecane, hexadecene, C 32 Alkane, C 32 Isoalkanes, C 54 Alkane, C 54 The hydrocarbon emollient is selected from the group consisting of isoalkanes and combinations thereof. In one embodiment, the hydrocarbon emollient is squalane, C 32 Alkane, C 32 Isoalkanes, C 54 Alkane, C 54 The selection is made from the group consisting of isoalkanes and combinations thereof.

[0255] In one embodiment, the emollient is a silicone emollient selected from the group consisting of dimethicone, phenyl dimethicone, caprylyl methicone, ethyl trisiloxane, cyclotetrasiloxane, cyclopentasiloxane, cyclohexasiloxane, and combinations thereof. 5. Polyester elastomer

[0256] In one embodiment, the solubility of the polyester elastomer is measured by mixing 1 gram of polyester elastomer with 100 grams of test solvent by magnetic stirring in a sealed glass container at room temperature (23°C) for 24 hours. The polyester elastomer and test solvent are then filtered, and the solid obtained on the filter is optionally dried in a vacuum at 80°C for 20 hours, or dried to a certain weight. The dried solid is considered to be a fraction of polyester elastomer that does not dissolve in the test solvent.

[0257] In one embodiment, the fraction of polyester elastomer that does not dissolve in ethyl acetate is more than or equal to 40% by weight of the total weight of polyester elastomer.

[0258] In another embodiment, the fraction of polyester elastomer insoluble in ethyl acetate is 40% to 90% of the total weight of polyester elastomer. In yet another embodiment, the fraction of polyester elastomer insoluble in ethyl acetate is 50% to 90% of the total weight of polyester elastomer.

[0259] Polyester elastomer samples without a solvent or emollient, or polyester elastomer samples with a solvent or emollient, can be used. When using polyester elastomer samples with a solvent or emollient, the weight of the solvent or emollient in the composition should be taken into account and subtracted from the total weight of the composition to determine the weight percentage of the polyester elastomer fraction that does not dissolve in ethyl acetate.

[0260] The Soxhlet extraction method can be used to determine the weight percentage of cross-linked polyester (gel fraction) in a polyester elastomer. The basis of this test is to extract soluble, low-Mw components (and optionally present solvents or emollients) from high-Mw cross-linked, insoluble components through extraction. The percentage of cross-linked polyester is defined as the ratio of the weight of the insoluble residue (dry gel) to the initial weight of the polyester elastomer sample.

[0261] The gel fraction of polyester elastomer is

number

[0262] Polyester elastomer samples without a solvent or emollient, or polyester elastomer samples with a solvent or emollient, can be used. When using polyester elastomer samples with a solvent or emollient, the weight of the solvent or emollient in the polyester elastomer should be taken into account and subtracted from the weight of the sample to determine the total weight of the polyester elastomer used for extraction in the formula described above.

[0263] Cellulose cylindrical filter paper for extraction was weighed. 3.0–3.5 grams of polyester elastomer sample was weighed and placed inside the cellulose cylindrical filter paper. Approximately 125–150 mL of ethyl acetate ( Depositphotos) was placed in a 250 mL round-bottom flask. The cylindrical filter paper containing the sample was placed in a Soxhlet extraction column. The Depositphotos solution was heated to 80°C (reflux, boiling point 77°C) and held under reflux for 1 hour to extract the soluble components of the polymer sample, optionally containing the solvent or emollient. After 2 hours, the Depositphotos solution was cooled to room temperature (approximately 23°C). The cylindrical filter paper containing the polymer residue was removed from the Soxhlet extraction apparatus. The cylindrical filter paper was placed in a desiccator, vacuum oven, or vented oven (50°C) under vacuum to remove any remaining Depositphotos (24 hours). After the Depositphotos was removed, the weight of the cylindrical filter paper containing the dried gel was determined. The weight of the dry gel is calculated by subtracting the weight of the cellulose extraction cylindrical filter paper. The gel fraction is calculated from the above equation. All weights of solvent or emollient in the sample are subtracted from the "total weight of polyester elastomer used for extraction".

[0264] In one embodiment, the gel fraction of the polyester elastomer is greater than 20%. In one embodiment, the gel fraction of the polyester elastomer is greater than 40%. In one embodiment, the gel fraction of the polyester elastomer is greater than 50%. In one embodiment, the gel fraction of the polyester elastomer is greater than 60%. In one embodiment, the gel fraction of the polyester elastomer is greater than 70%.

[0265] The swelling test of polyester elastomers is used to determine the swelling capacity of the polyester elastomer through the weight of the solvent or emollient retained by the polyester elastomer. The swelling ratio (sometimes called SR-swelling value) is given by the formula:

number

[0266] During the ceremony:

[0267] Ws is the weight of the swollen polyester elastomer, and

[0268] Wi is the initial (dry polymer) weight.

[0269] The swelling ratio of the polyester elastomer is determined appropriately as follows.

[0270] Samples of polyester elastomers without a solvent or emollient, or samples of polyester elastomers with a solvent or emollient, can be used. When using a sample of polyester elastomers with a solvent or emollient, the weight of the solvent or emollient already present in the composition is taken into consideration and subtracted from the initial sample weight Wi.

[0271] The swelling process takes place at ambient temperature (23°C).

[0272] Place approximately 1.9–2.1 grams of polyester elastomer into a 25 mL beaker. In the same beaker, mix the polyester elastomer with 24.9–25.1 grams of caprylic / capric triphosphate as a solvent. Allow the polyester elastomer to disperse and absorb (swell) the solvent over 30 minutes. Filter components (e.g., Thermo Scientific) TM Nalgene TM Rapid-Flow TMDetermine the weight of the disposable sterile filter unit. After the polyester elastomer has swelled, mix the mixture in the beaker and pour it into the filter. Rinse the beaker with approximately 4.9–5.1 grams of caprylic / capric acid coconut alkyl solvent to complete the transfer of the swollen polyester elastomer. Excess solvent in the gel mixture is allowed to pass through the filter. The filter with the swollen polyester elastomer is weighed when no excess solvent is observed on the surface (this may take approximately 4–18 hours), and the weight (Ws) is given.

[0273] The swelling ratio (SR) is calculated using the above equation.

[0274] In one embodiment, the swelling ratio of the elastomer is approximately 1 gram / gram to approximately 15 grams / gram, approximately 1 gram / gram to approximately 5 grams / gram, approximately 1 gram / gram to approximately 4 grams / gram, and approximately 1 gram / gram to approximately 2 grams / gram. In some embodiments, the swelling value of the elastomer is approximately 15 grams / gram, approximately 14 grams / gram, approximately 13 grams / gram, approximately 12 grams / gram, approximately 11 grams / gram, approximately 10 grams / gram, approximately 9 grams / gram, approximately 8 grams / gram, approximately 7 grams / gram, approximately 6 grams / gram, 5 grams / gram, approximately 4.8 grams / gram, approximately 4.6 grams / gram, approximately 4.4 grams / gram, approximately 4.2 grams / gram, approximately 4 grams / gram, approximately 3.8 grams / gram, approximately 3.6 grams / gram, approximately 3.4 grams / gram, approximately 3.2 grams / gram, approximately 3 grams / gram, approximately 2 grams / gram, or approximately 1 gram / gram.

[0275] Figure 2 shows monomer A(C 36This bar graph shows the swelling values ​​of polyester elastomers prepared from dimer acid (A), B (oleic acid), and C (diglycerin) in four different ratios. The molar ratio of B to C was kept constant. These elastomers were swelled in a caprylic / capric acid coconut alkyl solvent for 18 hours at 22°C. As seen in Figure 2, the A / C ratio has a significant effect on the swelling value of the synthesized polyester elastomer. The lowest swelling values ​​of the polyester elastomers are between A / B / C molar ratios of 1.5 / 0.5 / 1 and 2 / 0.5 / 1.

[0276] Figure 4 shows monomer A(C 36 This bar graph shows the swelling values ​​of elastomers prepared from dimer acid (B), oleic acid (B), and diglycerin (C) in four different ratios. The molar ratio of A to C was kept constant. These elastomers were swelled in caprylic / capric acid coconut alkyl emollient for 18 hours at 22°C. As seen in Figure 4, the swelling value of the polyester elastomer increases with increasing molar ratio of B / C. 6. Polyester elastomer gel

[0277] In one embodiment, a polyester elastomer composition was prepared by shearing a polyester elastomer with a solvent or emollient as described in this application to form a sheared polyester elastomer gel. In another embodiment, a polyester elastomer gel was prepared by combining a polyester elastomer with a solvent or emollient as described in this application to form a mixture, and then shearing the mixture.

[0278] In one embodiment, the shear force is provided by any type of mixed shearing device. In one embodiment, the mixed shearing device is a batch mixer, a planetary mixer, a single-screw or multi-screw extruder, a dynamic or static mixer, a colloidal mill, a homogenizer, a sonorator, a three-roll mill, or a combination thereof.

[0279] When shear force is applied to these compositions, a polyester elastomer gel suitable for use in personal care or cosmetic applications is produced, which has improved spreadability and improved physical properties or feel. Personal care applications where this property is most desirable include, but are not limited to, deodorants, antiperspirants, skin creams, facial creams, hair care products such as shampoos, mousses, and styling gels, protective creams, color cosmetics such as lipsticks, foundations, blushes, makeup, and mascaras, and other cosmetic formulations.

[0280] In one embodiment, the viscosity of the polyester elastomer gel was measured to 0.1 s by a rheometer. -1 The viscosity measured under shear force ranges from approximately 10 cp to approximately 1,000,000 cp. In one embodiment, the viscosity of the gel at 25°C is approximately 30,000 cp to approximately 900,000 cp. In one embodiment, the viscosity of the gel is approximately 10 cp, approximately 1,000 cp, approximately 5,000 cp, approximately 10,000 cp, approximately 15,000 cp, approximately 20,000 cp, approximately 25,000 cp, approximately 30,000 cp, approximately 35,000 cp, approximately 40,000 cp, approximately 45,000 cp, approximately 50,000 cp, approximately 55,000 cp, approximately 60,000 cp, approximately 65,000 cp, approximately 70,000 cp, approximately 75,000 cp, approximately 80,000 cp, approximately 85,000 cp, approximately 90,000 cp, and approximately 95,000 cp. p is approximately 100,000 cp, approximately 150,000 cp, approximately 200,000 cp, approximately 250,000 cp, approximately 300,000 cp, approximately 350,000 cp, approximately 400,000 cp, approximately 450,000 cp, approximately 500,000 cp, approximately 550,000 cp, approximately 600,000 cp, approximately 650,000 cp, approximately 700,000 cp, approximately 750,000 cp, approximately 800,000 cp, approximately 850,000 cp, approximately 900,000 cp, approximately 950,000 cp, or approximately 1,000,000 cp.

[0281] The viscosity of polyester elastomer gels was measured using an Anton Paar MCR301 rheometer with a PP25 / S probe and a 1 mm gap. The measurement profile used was a flow curve with shear rates from 0.01 to 100 / s at a temperature of 25°C. For the measurement, the sample was loaded onto the rheometer stage, the probe was lowered, and the sample was equilibrated for 3 minutes before the test was performed. Viscosity at 10 / s was reported.

[0282] In one embodiment, the polyester elastomer gel is composed of particles ranging in size from approximately 1 μm to approximately 500 μm, as measured by a laser diffraction particle size analyzer. In another embodiment, the gel is composed of particles ranging in size from approximately 20 μm to approximately 400 μm. In yet another embodiment, the gel is composed of particles ranging in size from approximately 1 μm, 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 75 μm, 100 μm, 125 μm, 150 μm, 175 μm, 200 μm, 225 μm, 250 μm, 275 μm, 300 μm, 325 μm, 350 μm, 375 μm, or approximately 400 μm.

[0283] In one embodiment, the polyester elastomer gel is composed of particles with sizes D10 between 10 μm and 50 μm, D50 between 20 μm and 100 μm, and D90 between 30 μm and 200 μm.

[0284] The particle size of the polyester elastomer gel is measured using a HORIBA Scientific Partica LA-960 laser scattering particle size analyzer. The sample is prepared by mixing 0.3 g of elastomer gel with 15 g of caprylic / capric triphosphate and thoroughly mixing at 23°C. A few drops of the diluted gel sample are transferred to a cuvette containing neat caprylic / capric triphosphate, while stirring constantly. Once the transmittance reaches an acceptable range, the measurement is performed at 23°C. Particle size values ​​of D10, D50, and D90 are reported. The parameter D10 indicates the point in the particle size distribution where up to 10% or less of the total volume of material in the sample is "included". The parameter D50 indicates the point in the particle size distribution where up to 50% or less of the total volume of material in the sample is "included". The parameter D90 indicates the point in the particle size distribution where up to 90% or less of the total volume of material in the sample is "included".

[0285] The polyester elastomer gel according to the present invention is characterized by rheological tests dependent on vibration amplitude and vibration frequency at 25°C. Within a linear viscoelastic range in the frequency range of 0.01 to 100 Hz, the gel has a storage modulus G', which is always greater than the loss modulus G'', where G' and G'' are rheological parameters known to those skilled in the art. The modulus or storage modulus, designated as G', is an indicator of how elastic the material is, i.e., how much mechanical energy is stored per deformation cycle, whereas the viscoelastic modulus or loss modulus, i.e., G'', is a measure of the mechanical energy lost or dissipated in the form of heat and / or other forms per deformation cycle, and these collectively quantify the elastic or viscous portion of viscoelastic solids and / or liquids, as described, for example, in Viscoelastic Properties of Polymers by JD Ferry, John Wiley & Sons, New York: 1980.

[0286] The polyester elastomer gel according to the present invention has an excellent yield point, which has a favorable effect, for example, on its thickening properties and its ability to stabilize dispersed components of personal care formulations. For dynamic vibration rheology testing, for example, an MCR301 rheometer (Anton Paar GmbH, Graz, Austria) with a 25 mm parallel plate steel configuration can be used.

[0287] Figure 5 is a line graph showing the rheological profile of the polyester elastomer gel prepared by treating the polyester elastomer of Example 1 with caprylic / capric coconut alkyl emollient.

[0288] Figure 6 is a line graph showing the particle size distribution of polyester elastomer gels prepared by treating the polyester elastomer of Example 1 with a caprylic / capric coconut alkyl solvent or an emollient.

[0289] Polyester elastomer gel is 1s -1 It is noteworthy that at a shear rate and temperature of 25°C, the material has a viscosity of less than 100,000,000 cp while simultaneously satisfying G'>G''; and exhibits nearly frequency-independent properties within a linear viscoelastic range with Tan-d<1. The polyester gel prepared by the method described herein is characterized by good fluidity, which has a favorable effect on handling and processability, yet still has a clear yield point and therefore good thickening and stabilization properties.

[0290] In one embodiment, the storage modulus (G') of the gel, measured using dynamic rheology with a rheometer within a linear viscoelastic range, is approximately 10 Pa to approximately 100,000 Pa. In another embodiment, the storage modulus (G') of the gel is approximately 100 Pa to approximately 50,000 Pa. In yet another embodiment, the storage modulus (G') of the gel is approximately 500 Pa to approximately 30,000 Pa, and in yet another embodiment, the storage modulus (G') of the gel is approximately 10 Pa, approximately 100 Pa, approximately 500 Pa, approximately 700 Pa, approximately 800 Pa, approximately 1,000 Pa, approximately 1,500 Pa, approximately 2,000 Pa, approximately 2,500 Pa, approximately 5,000 Pa, approximately 10,000 Pa, approximately 15,000 Pa, approximately 25,000 Pa, approximately 50,000 Pa, or approximately 100,000 Pa.

[0291] In one embodiment, the loss modulus (G) of the gel, measured using dynamic rheology with a rheometer within a linear viscoelastic range, is approximately 10 Pa to approximately 100,000 Pa. In another embodiment, the loss modulus (G) of the gel is approximately 100 Pa to approximately 50,000 Pa. In yet another embodiment, the loss modulus (G) of the gel is approximately 500 Pa to approximately 30,000 Pa, and in yet another embodiment, the loss modulus (G) of the gel is approximately 10 Pa, approximately 100 Pa, approximately 500 Pa, approximately 700 Pa, approximately 800 Pa, approximately 1,000 Pa, approximately 1,500 Pa, approximately 2,000 Pa, approximately 2,500 Pa, approximately 5,000 Pa, approximately 10,000 Pa, approximately 15,000 Pa, approximately 25,000 Pa, approximately 50,000 Pa, or approximately 100,000 Pa.

[0292] The storage modulus G' and loss modulus G'' of polyester elastomer gels were measured using an Anton Paar MCR301 rheometer with a PP25 / S probe and a 1 mm gap. The measurement profile used was a flow curve with shear rates from 0.01 to 100 s at a temperature of 25°C. The measurement profile involved amplitude sweeping with amplitude strains from 0.001 to 100% at a frequency of 1 Hz at 25°C. For measurement, the sample was loaded onto the rheometer stage, the probe was lowered, and the sample was equilibrated for 3 minutes, after which the amplitude sweep test was performed. The linear viscoelastic region (LVR region) was determined, and the G' value in that region was reported.

[0293] In one embodiment, the polyester elastomer composition is prepared using the method described herein.

[0294] In one embodiment, the polyester elastomer described in this application is produced using the principles of green chemistry. In another embodiment, the polyester elastomer described in this application is manufactured by a simple, efficient, and environmentally friendly process that does not use toxic raw materials and does not produce toxic by-products.

[0295] In one embodiment, the polyester elastomer gel described herein is produced using the principles of green chemistry. In another embodiment, the polyester elastomer gel described herein is manufactured by a simple, efficient, and environmentally friendly process that does not use toxic raw materials and does not produce toxic by-products. IV. Personal Care Formulas

[0296] In one embodiment of this disclosure, the polyester elastomer described herein is incorporated into a personal care formulation. In another embodiment, a polyester elastomer gel prepared from the elastomer described herein is incorporated into a personal care formulation.

[0297] In some embodiments, the polyester elastomer gel has excellent properties including transparency, thixotropy, shear reduction, and smooth spreadability on the skin. In some embodiments, the polyester gel is applied as a base oil or main component in cosmetic products and medical supplies.

[0298] In one embodiment, the personal care formulation further comprises preservatives, antioxidants, chelating agents, rubber or thickeners, oils, waxes, fragrances, essential oils, emulsifiers, surfactants, or combinations thereof.

[0299] In one embodiment, the personal care formulation is a deodorant, antiperspirant, skin cream, facial cream, hair shampoo, hair conditioner, mousse, hair styling gel, hair spray, protective cream, lipstick, foundation, blush, makeup, mascara, skincare lotion, moisturizer, facial treatment, personal cleanser, facial wash, bath oil, perfume, shaving cream, pre-shave lotion, after-shave lotion, cologne, sachet, or sunscreen formulation.

[0300] In one embodiment, the polyester elastomer can be crushed to form an elastomer powder. In another embodiment, the polyester elastomer powder has inherent properties such as being easily rubbed into the skin or providing certain sensory benefits to personal care formulations. In yet another embodiment, the polyester elastomer is used in solid cosmetics such as antiperspirants and deodorants. V. Use of Gel

[0301] In one embodiment, the present disclosure provides the use of the polyester elastomer gel composition described herein for personal care formulations. Examples

[0302] The following embodiments are included to illustrate various aspects of the present disclosure. Those skilled in the art will understand that the techniques disclosed in the following embodiments represent the techniques found by the inventors to function well in the embodiments of the disclosure and thus constitute a preferred mode of implementation. However, those skilled in the art will understand that, in view of the present disclosure, many modifications can be made to the specific examples disclosed, and similar or comparable results can still be obtained without departing from the spirit and scope of the present disclosure. Example 1: Preparation of polyester elastomer and polyester elastomer gel

[0303] Place 120g of C hydride in a suitable container equipped with a stirrer, a heating device, and the ability to distill off water. 36 Dimer acid and 4 g of oleic acid were added together with 20 g of diglycerin. Next, 80 g of squalane was added as an emollient. Then, 1 g of methanesulfonic acid was added. After all the components were charged under stirring, the temperature was raised to 120°C, and water was distilled off as formation occurred. The temperature was maintained for 14 to 18 hours, or until gelation occurred, to form a polymer elastomer. The elastomer was then pulverized into a powder by mechanical stirring.

[0304] 100 g of this polyester elastomer was treated with 160 g of caprylic / capric coconut alkyl as an emollient, and a polyester elastomer gel was formed using a rotor stator homogenizer. The rheological profile of the polyester gel was measured using dynamic rheology with a rheometer within the linear viscoelastic range. As shown in Figure 5, the polyester gel had a storage modulus (G') of approximately 2000 Pa and a loss modulus (G") of approximately 300 Pa. The particle size in the polyester gel was measured by laser diffraction. As shown in Figure 6, the polyester gel consisted of particles with a median particle size of 53 μm. Example 2: Preparation of polyester elastomer

[0305] 120 g of hydrogenated dimer acid and 6 g of isostearic acid were added together with 25 g of polyglycerin-3 to a suitable container equipped with a stirrer, a heating device, and the ability to distill off water. After all components were charged under stirring, the temperature was raised to 140°C and water was distilled off as formation occurred. The temperature was maintained for 25-30 hours, or until gelation occurred, to form a polymer elastomer. The elastomer was then pulverized into a powder by mechanical stirring. Example 3: Preparation of polyester elastomer and polyester elastomer gel

[0306] 175 g of hydrogenated dimer acid and 12 g of isostearic acid were added together with 35 g of diglycerin to a suitable container equipped with a stirrer, a heating device, and the ability to distill off water. Next, 40 g of squalane was added as an emollient. After all components were charged under stirring, the temperature was raised to 200°C and water was distilled off as formation occurred. The temperature was maintained for 20-30 hours, or until gelation occurred, to form a polymer elastomer. The elastomer was then pulverized into a powder by mechanical stirring. The gel fraction was 76%, and was measured by the Soxhlet extraction method described herein. The swelling ratio in caprylic acid / capric acid was 4.8.

[0307] 100g of this polyester elastomer was then treated with 200g of caprylic / capric triphosphate alkyl as an emollient to form a polyester gel. Example 4: Cosmetic composition

[0308] Preparation of anhydrous primers The components of Phase A in Table 1 were mixed in a beaker until homogeneous. The components of Phase B in Table 1 were slowly added to the beaker and mixed until homogeneous. See Table 1 for details of the formulation. [Table 1] Example 5: Preparation of O / W skin cream

[0309] All components of Phase A from Table 2 were mixed together in a beaker and heated to 65°C. Mixed until homogeneous. In a separate beaker, all components of Phase B from Table 2 were mixed together and heated to 65°C. Mixed until homogeneous. When both phases reached 65°C, Phase B was slowly added to Phase A while homogenizing. Homogenized for 5 minutes. Mixed slowly and cooled. See Table 2 for detailed formulation information. [Table 2] Example 6: Preparation of SunCeram

[0310] All components of Phase A in Table 3 were mixed together in a beaker. The mixture was heated to 75°C and mixed until homogeneous. Once uniformly dispersed, mixing was continued for 30 minutes. Then, the components of Phase B in Table 3 were slowly added one by one, and mixed until homogeneous. The mixture was cooled overnight at room temperature. It took several hours for the formulation to fully set. See Table 3 for detailed formulation information. [Table 3] Example 7: Preparation of lipstick

[0311] The components of Phase A in Table 4 were mixed in a beaker and homogenized until the pigment was completely pulverized and dispersed. The remaining components of Phase B, excluding the elastomer gel from Table 4, were added to the beaker and heated to 85°C. Mixing was performed until homogenized. Once homogenized, the elastomer gel was slowly added to the bulk and mixed until homogenized. The bulk was poured into a mold at 75°C to 80°C. See Table 4 for detailed formulation information. [Table 4] Example 8: Preparation of foundation

[0312] All components of Phase B from Table 5 were mixed in a beaker and homogenized until the pigment was completely pulverized and dispersed. Bentone Luxe XO and elastomer gel were added to this mixture and homogenized until homogenized. Lexemul 515 MB was added and heated to 75°C, and mixed until the wax was completely melted. In a separate beaker, all components of Phase A from Table 5 were mixed and heated to 75°C while mixing until homogenized. When both phases reached 75°C, Phase A was slowly added to Phase B while homogenizing. Homogenized for an additional 2 minutes and allowed to cool. See Table 5 for detailed formulation information. [Table 5] Example 9: Preparation of a moisturizing stick

[0313] All ingredients listed in Table 7 were combined in a beaker and heated to 85°C. They were mixed until uniform. The mixture was immediately poured into packaging containers and allowed to cool and solidify at room temperature. See Table 6 for detailed formulation information. [Table 6] Other embodiments

[0314] All publications, patents, and patent applications referenced herein are incorporated in whole by reference to the same extent as each individual publication, patent, or patent application is incorporated in whole by reference, specifically and individually. Where it is found that a term in this application has a different definition from that in a document incorporated by reference, the definition presented herein shall be used as the definition of that term.

[0315] While the present invention has been described in relation to its particular embodiments, it is understood that this disclosure is subject to further modification, and this application is intended to encompass all modifications, uses, or adaptations of the present invention, including developments of this disclosure that are known or commonly used in the art to which the present invention belongs, applicable to the essential features described herein, and subject to the claims, in accordance with the principles of the present invention in general.

Claims

1. It is made of polyester elastomer: (i) at least one dicarboxylic acid or tricarboxylic acid; (ii) at least one monocarboxylic acid; and (iii) at least one polyol A polyester elastomer containing the reaction product of [the specified reaction].

2. At least one dicarboxylic acid is a compound of formula (IA), 【Chemistry 25】 During the ceremony R １Ａ is C ２ to C ５２ alkyl group, C ２ to C ５２ heteroalkyl group, C ２ to C ５２ alkene group, C ２ to C ５２ heteroalkene group, C ３ to C ５２ cyclic group, or C ２ to C ５２ heterocyclic group, the polyester elastomer of Claim 1.

3. The dicarboxylic acids in formula (IA) are succinic acid, glutaric acid, adipic acid, pimelic acid, azelaic acid, sebacic acid, brasylic acid, dodecanediic acid, and C ２１ Dimer acid, C ３６ A polyester elastomer according to claim 2, selected from the group consisting of dimer acid, maleic acid, fumaric acid, traumatic acid, and combinations thereof.

4. At least one tricarboxylic acid is a compound of formula (IB), 【Chemistry 26】 During the ceremony R １Ｂ is C ２ ~C ５２ alkyl group, C ２ ~C ５２ Heteroalkyl groups, C ２ ~C ５２ Alkene group, C ２ ~C ５２ Heteroalkene group, C ３ ~C ５２ Cyclic group, or C ２ ~C ５２ A polyester elastomer according to claim 1, wherein the group is a heterocyclic group.

5. The tricarboxylic acid in formula (IB) is citric acid, C ５４ Trimer acid and C hydrogenate ５４ A polyester elastomer according to claim 4, selected from the group consisting of trimer acids.

6. At least one monocarboxylic acid is a compound of formula (II), 【Chemistry 27】 During the ceremony R ２ is C ２ ~C ５２ alkyl group, C ２ ~C ５２ Heteroalkyl groups, C ２ ~C ５２ Alkene group, C ２ ~C ５２ Heteroalkene group, C ３ ~C ５２ Cyclic group, or C ２ ~C ５２ A polyester elastomer according to any one of claims 1 to 5, wherein the group is a heterocyclic group.

7. The polyester elastomer of claim 6, wherein the monocarboxylic acid of formula (II) is selected from the group consisting of caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, and combinations thereof.

8. At least one polyol is a compound of formula (III), 【Chemistry 28】 During the ceremony R ３ is C ３ ~C ５０ alkyl group, C ３ ~C ５０ Heteroalkyl groups, C ３ ~C ５０ Alkene group, C ３ ~C ５０ Heteroalkene group, C ３ ~C ５０ Cyclic group, or C ３ ~C ５０ Heterocyclic groups; and A polyester elastomer according to any one of claims 1 to 7, wherein n is an integer from 2 to 10.

9. The polyol of formula (III) is glycerin, diglycerin, polyglycerin, sorbitol, castor oil, hydrogenated castor oil, sugar alcohol, monosaccharides, disaccharides, oligosaccharides, polysaccharides, tannins, gallic acid, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,2-pentanediol, 1,3-pentanediol, 1,4-pentanediol, 1,5-pentanediol, 1,2-hexanediol, 1,5-hexanediol, 1,6-hexanediol, C ３６ Dimer ol, hydrogenated C ３６ A polyester elastomer according to claim 8, selected from the group consisting of dimergol and combinations thereof.

10. A polyester elastomer according to any one of claims 1 to 9, wherein the molar ratio of carboxyl functional groups (-COOH) derived from monocarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1:2 to approximately 1:

16.

11. A polyester elastomer according to any one of claims 1 to 10, wherein the molar ratio of carboxyl functional groups (-COOH) derived from dicarboxylic acid or tricarboxylic acid to hydroxyl functional groups (-OH) derived from polyol is approximately 1.5:1 to approximately 1:

4.

12. A polyester elastomer according to any one of claims 1 to 11, having a gel fraction of at least 20% or more.

13. A polyester elastomer according to any one of claims 1 to 12, having a swelling ratio of approximately 1 gram / gram to approximately 15 grams / gram.

14. A polyester elastomer according to any one of claims 1 to 13, comprising particles with a particle size ranging from approximately 1 μm to approximately 500 μm as measured by a laser diffraction particle size analyzer.

15. A method for preparing an elastomer, comprising: (i) at least one dicarboxylic acid or tricarboxylic acid; (ii) at least one monocarboxylic acid; and (iii) at least one polyol; A method comprising reacting to form a crosslinked polyester elastomer.

16. The method of claim 15, which is carried out in the presence of at least one solvent.

17. The method according to claim 16, wherein at least one solvent is selected from at least one emollient.

18. The method of claim 16 or 17, wherein at least one solvent or at least one emollient is selected from the group consisting of triglycerides, monoesters, diesters, citrate esters, ethers, carbonates, hydrocarbons, silicones, and combinations thereof.

19. The solvent or emollient is: (a) Triglycerides of formula (IV) 【Chemistry 29】 During the ceremony R ４ , R ５ , and R ６ C is independent １ ~C ３５ alkyl group, C １ ~C ３５ Heteroalkyl groups, C ２ ~C ３５ Alkene group, or C ２ ~C ３５ heteroalkene group; or (b) Monoester of formula (V) 【Transformation 30】 During the ceremony R ７ is C １ ~C ３５ alkyl group, C １ ~C ３５ Heteroalkyl groups, C ２ ~C ３５ Alkene group, or C ２ ~C ３５ Heteroalkene group; and R ８ is C １ ~C ３５ alkyl group, C １ ~C ３５ Heteroalkyl groups, C ２ ~C ３５ Alkene group, or C ２ ~C ３５ heteroalkene group The method according to claim 18.

20. The solvent or emollient is: (a) Triglycerides selected from the group consisting of caprylic / capric acid triglycerides, triheptanoin, corn oil, soybean oil, olive oil, rapeseed oil, cottonseed oil, coconut oil, almond oil, argan oil, rosehip seed oil, black seed oil, grapeseed oil, avocado oil, apricot kernel oil, geranium oil, lavender oil, rosehip oil, macadamia nut oil, eucalyptus oil, sardine oil, herring oil, safflower oil, linseed oil, sunflower oil, olive oil, canola oil, sesame oil, cottonseed oil, palm oil, rapeseed oil, tung oil, fish oil, peanut oil, cuphea oil, milkweed oil, glasswort oil, whale oil, castor oil, and combinations thereof; or (b) Alkyl caprylate, alkyl capric acid, jojoba oil, jojoba ester, isopropyl jojoba fatty acid, ethyl macadamia nut oil, isoamyl laurate, heptyl undecylenate, methylheptyl isostearate, isostearyl isostearate, glyceryl ricinoleate, isostearyl palmitate, myristyl myristate, octyldodecyl myristate, octyldodecyl hydroxystearate, butyl myristate, ethylhexyl coconut oil fatty acid, ethylhexyl palmitate, ethylhexyl stearate, butyl stearate, decyl oleate, isocetyl behenate, isocetyl myristate, isocetyl palmitate, isocetyl stearate, isodecyl oleate, isopropyl isostearate, isopropyl myristate, isopropyl palmitate, oleyl oleate, propylene glycol laurate, octyldodecyl erucate, alkyl lactate C １２ ~C １３ 、alkyl lactate C １２ ~C １５ 、isostearyl lactate, glyceryl-5-lactate, lauryl lactate, myristyl lactate, oleyl lactate, laureth-2 benzoate, alkyl benzoate C １２ ~C １５ 、benzoate C １２ ~C １５ pareth-3, dipropylene glycol benzoate, isodecyl salicylate, alkyl salicylate C １２ ~C １５ 、tridecyl salicylate, ethylhexyl isononanoate, cetyl ethylhexanoate, isononyl isononanoate, isodecyl ethylhexanoate, isodecyl isononanoate, tridecyl ethylhexanoate, isotridecyl isononanoate, isostearyl isononanoate, cetearyl isononanoate, laureth-2 ethylhexanoate, cetearyl ethylhexanoate ethyl, isodecyl neopentanoate, isostearyl neopentanoate, myristyl neopentanoate, isostearyl behenate, octyldodecyl neopentanoate, tridecyl neopentanoate, and a monoester selected from the group consisting of combinations thereof, the method of claim 18.

21. The solvent or emollient is: (a) Diester of formula (VI) 【Chemistry 31】 During the ceremony R ９ is C １ ~C ３５ alkyl group, C １ ~C ３５ Heteroalkyl groups, C ２ ~C ３５ Alkene group, or C ２ ~C ３５ Heteroalkene group; and R １０ and R １１ C is independent １ ~C ３５ alkyl group, C １ ~C ３５ Heteroalkyl groups, C ２ ~C ３５ Alkene group, or C ２ ~C ３５ heteroalkene group; or (b) Diester of formula (VII) 【Chemistry 32】 During the ceremony R ９ is C １ ~C ３５ alkyl group, C １ ~C ３５ Heteroalkyl groups, C ２ ~C ３５ Alkene group, or C ２ ~C ３５ Heteroalkene group; and R １０ and R １１ H and C are independent of each other. １ ~C ３５ alkyl group, C １ ~C ３５ Heteroalkyl groups, C ２ ~C ３５ Alkene group, or C ２ ~C ３５ heteroalkene group; or (c) Diester of formula (VIII) 【Transformation 33】 During the ceremony R ９ and R １０ C is independent １ ~C ３５ alkyl group, C １ ~C ３５ Heteroalkyl groups, C ２ ~C ３５ Alkene group, or C ２ ~C ３５ Heteroalkene group; and R １１ H, C １ ~C ３５ alkyl group, C １ ~C ３５ Heteroalkyl groups, C ２ ~C ３５ Alkene group, or C ２ ~C ３５ The method of claim 18, wherein the group is a heteroalkene group.

22. The solvent or emollient is diethyl succinate, dibutyl succinate, diethylhexyl succinate, diisopropyl sebacate, dimethyl sebacate, diethyl sebacate, dibutyl sebacate, diisostearyl dimer, diisostearyl malate, isostearyl stearoyl stearate, isocetyl stearoyl stearate, octyldodecyl stearoyl stearate, diethylhexyl malate, diethylhexyl maleate, dipropylene glycol dibenzoate, dicaprylyl adipate, dicaprylyl maleate, di The method of claim 18 or 21, wherein the diester is selected from the group consisting of sopropyl dimer, diisopropyl adipate, diisobutyl adipate, diisopropyl sebacate, diisostearyl dimer, diethylhexyl succinate, diethylene glycol diethylhexanoate, neopentyl glycol dicaprate, propylene glycol dicaprylate / caprate, neopentyl glycol diisostearate, neopentyl glycol diethylhexanoate, neopentyl glycol diheptanoate, and combinations thereof.

23. The solvent or emollient is: (a) Citrate ester of formula (IX) 【Transformation 34】 During the ceremony R １２ , R １３ , R １４ , and R １５ H and C are independent of each other. １ ~C ３５ alkyl group, C １ ~C ３５ Heteroalkyl groups, C ２ ~C ３５ Alkene group, or C ２ ~C ３５ heteroalkene group, Here R １２ , R １３ , R １４ , and R １５ At least one of them is not H; or (b) ether of formula (X) 【Chemistry 35】 During the ceremony R １６ and R １７ H and C are independent of each other. ２ ~C ２０ alkyl group, C ２ ~C ２０ Heteroalkyl groups, C ２ ~C ２０ Alkene group, or C ２ ~C ２０ heteroalkene group, Here R １６ and R １７ At least one of them is not H; or (c) Carbonate of formula (XI) 【Transformation 36】 During the ceremony R １８ , and R １９ H and C are independent of each other. ２ ~C ２０ alkyl group, C ２ ~C ２０ Heteroalkyl groups, C ２ ~C ２０ Alkene group, or C ２ ~C ２０ heteroalkene group The method according to claim 18.

24. The solvent or emollient is: (a) Citrate esters selected from the group consisting of tricaprylyl citrate, triisostearyl citrate, triisocetyl citrate, trioctyldodecyl citrate, triethyl citrate, tributyl citrate, acetyltriethyl citrate, acetyltributyl citrate, trioctyldodecyl citrate, triisocetyl citrate, and combinations thereof; or (b) an ether selected from the group consisting of dicaprylyl ether, didecyl ether, panthenyl ethyl ether, dicetyl ether, dimyristyl ether, distearyl ether, dilauryl ether, and combinations thereof; or (c) The method of claim 18 or 23, wherein the carbonate is selected from the group consisting of dicaprylyl carbonate, diethylhexyl carbonate, and combinations thereof.

25. A solvent or emollient is a substance with a number of carbon atoms (C) ４ From C ６０ The method of claim 18, wherein the hydrocarbon is...

26. The solvent or emollient is Farnesene, Hydrogenated Farnesene, Coconut Alkanes, Coconut / Palm Kernel Alkanes, C ９ ~C １２ Alkane, C １０ ~C １３ Alkane, C １２ ~C １７ Alkane, C １３ ~C １４ Alkane, C １３ ~C １５ Alkane, C １４ ~C １７ Alkane, C １４ ~C １９ Alkane, C １４ ~C ２０ Alkane, C １４ ~C ２２ Alkane, C １５ ~C １９ Alkane, C ２１ ~C ２８ Alkane, C １７ ~C ２３ Alkane, C ９ ~C １２ Isoalkanes, C ９ ~C １３ Isoalkanes, C ９ ~C １４ Isoalkanes, C ９ ~C １６ Isoalkanes, C １０ ~C １１ Isoalkanes, C １０ ~C １２ Isoalkanes, C １０ ~C １３ Isoalkanes, C １１ ~C １２ Isoalkanes, C １１ ~C １３ Isoalkanes, C １１ ~C １４ Isoalkanes, C １２ ~C １４ Isoalkanes, C １２ ~C １５ Isoalkanes, C １２ ~C ２０ Isoalkanes, C １３ ~C １４ Isoalkanes, C １３ ~C １６ Isoalkanes, C １４ ~C １６ Isoalkanes, C １５ ~C １９ Isoalkanes, C １０ ~C １６ Olefin, C １２ ~C １８ Olefin, C １８ ~C ２６ Olefin, C ２０ Olefin, C ２０ ~C ２４ Olefin, C ２４ ~C ３０ Olefin, C ２６ ~C ２８ Olefin, C ２６ ~C ５４ Olefin, C ２８ ~C ３６ Olefin, C ２８ ~C ５２ Olefin, C ３０ ~C ３８ Olefin, C ３０ ~C ４５ Olefin, C ４ ~C １２ Olefin, C ４ ~C ６ Olefin, C ５ ~C ６ Olefins, hydrogenated poly(C) ６ / C １０ / C １４ Olefins), hydrogenated poly(C ６ ~C １２ Olefins), hydrogenated poly(C ６ ~C １４ Olefins), hydrogenated poly(C ６ ~C ２０ Olefins), hydrogenated poly(C ８ / C １２ Olefin), poly(C ２０ ~C ２８ Olefin), poly(C ３０ ~C ４５ Olefin), poly(C ４ ~C １２ Olefin), poly(C ６ ~C １４ Olefins), hexadecene, C ３２ Alkane, C ３２ Isoalkanes, C ５４ Alkane, C ５４ The method of claim 18, wherein the hydrocarbon is selected from the group consisting of isoalkane, diethylhexylcyclohexane, undecane, tridecane, tetradecane, pentadecane, hexadecane, octadecane, docosane, squalane, hydrogenated polyisobutene, polybutene, hydrogenated polydecene, hydrogenated didecene, mineral oil, liquidum, petrolatum, dodecane, isohexadecane, isododecane, isoeicosane, and combinations thereof.

27. The method involves methanesulfonic acid, p-toluenesulfonic acid, benzenesulfonic acid, sulfuric acid, amidosulfonic acid, sulfamic acid, sodium bisulfate, phosphoric acid, hydrochloric acid, hydrobromic acid, nitric acid, sodium hydroxide, potassium hydroxide, sodium methoxide, sodium ethoxide, potassium methoxide, potassium ethoxide, bismuth neodecanoate, bismuth(III) citrate, bismuth(III) chloride, bismuth(III) acetate, bismuth(III) phosphate, tin chloride, tinpyrone, dibutyltin dilaurate, di-n-butyloxostannan, butylstannoic acid, zinc chloride, zinc bromide, zinc carboxylate, zinc oxide, zinc hydroxynitrate, zinc hydroxyacetate, triethylamine, tripropylamine, cocamidopropyl dimethylamine, stearamidopropyl dimethylamine, isostearamidopropyl dimethylamine, Yb(OTf) ３ , Sc(OTf) ３ , Hf (OTf) ４ , Bi(OTf) ３ Al(OTf) ３ , Zn(OTf) ２ Mg(ClO) ４ ) ２ Cu(OTf) ２ , Ti(OCH(CH ３ ) ２ ) ４ The method according to any one of claims 15 to 26, which is carried out in the presence of a catalyst or salt catalyst selected from the group consisting of, and combinations thereof.

28. The method according to any one of claims 15 to 27, wherein the resulting polyester elastomer is biodegradable.

29. A composition comprising a polyester elastomer according to any one of claims 1 to 14.

30. The composition of claim 29, further comprising one or more additional solvents or emollients.

31. The composition of claim 30, wherein the solvent or emollient is as described in any one of claims 18 to 26.

32. A composition according to any one of claims 29 to 31, in the form of a powder or a gel.

33. The composition of claim 32, in the form of a polyester elastomer gel, each having a storage modulus (G') of about 10 Pa to about 100,000 Pa and / or a loss modulus (G'') of about 10 Pa to about 100,000 Pa, as measured by dynamic rheology using a rheometer within a linear viscoelastic range.

34. A personal care formulation comprising a polyester elastomer according to any one of claims 1 to 14, or a composition according to any one of claims 29 to 33.

35. A personal care formulation according to claim 34, selected from the group consisting of deodorants, antiperspirants, skin creams, facial creams, hair shampoos, hair conditioners, mousses, hair styling gels, hair sprays, protective creams, lipsticks, foundations, blushes, makeup, mascaras, skincare lotions, moisturizers, facial treatments, personal cleansers, facial washes, bath oils, perfumes, shaving creams, pre-shave lotions, after-shave lotions, colognes, sachets, and sunscreens.

36. The method is further: (iv) A swollen crosslinked polyester elastomer is formed by combining a crosslinked polyester elastomer with at least one solvent or emollient; and (v) Forming a polyester elastomer gel by applying a shear force to a swollen crosslinked polyester elastomer. A method of any one of claims 15 to 28, including the following:

37. Use of any one of the compositions of claims 29 to 33 in the manufacture of a personal care formulation.

Images