77 results about "Acetoacetates" patented technology

Compositions for delivering ketone bodies to a subject include one or more beta-hydroxybutyrate salts, one or more acetoacetate salts, beta-hydroxybutyric acid, and optionally acetoacetic acid. The compositions may optionally include one or more ketone body esters, such as one or more beta-hydroxybutyrate esters and / or one or more acetoacetate esters. An example composition contains about 2% to about 98% on a molar basis of the one or more beta-hydroxybutyrate salts and the one or more acetoacetate salts, about 2% to about 98% on a molar basis of the beta-hydroxybutyrate free acid and optionally the acetoacetate free acid, and optionally about 2% to about 98% on a molar basis of one or more ketone body esters.

A resin composition contains a resin that includes a monomer unit derived from (A) an acetoacetic acid ester compound including two or more acetoacetic acid ester groups in a molecule and a monomer unit derived from (B) an amine compound including two or more primary amino groups in a molecule, and that has a three-dimensional crosslinked structure in which an acetoacetic acid ester group of the (A) acetoacetic acid ester compound and a primary amino group of the (B) amine compound are condensation bonded.

The present invention relates to a method for coloring keratin fibers comprising applying the following ingredients to said keratin fibers, in one or more separate compositions: i) at least one chitosan compound; ii) at least one acetoacetate compound of formula (I); iii) at least one coloring agent selected from pigments, direct dyes, and mixtures thereof. The invention also relates to a composition comprising at least one specific chitosan compound and at least one beneficial agent selected from coloring agents, acetoacetate compounds, and mixtures thereof.

Title: Process for treating keratinous materials using at least one polyester compound with acetoacetate functionalities. The present invention relates to a process for treating keratinous materials comprising applying to said keratinous materials, in one or more successive steps, at least: i) at least one polyester of formula (I) comprising at least two acetoacetate functionalities, as well as its optical, geometric, and / or solvate isomers, such as hydrates, or a composition containing it or them: (Z)–[OC(O)-C(Ra)(Rb)-C(O)-R4]u (I), formula (I) in which Z, u, R4, Ra, and Rb are as defined in the description, and ii) optionally, at least one crosslinking agent. Figure for the abstract: None

The invention provides a waterborne epoxy curing agent based on enamine bonds as well as a preparation method and application of the waterborne epoxy curing agent, and belongs to the technical field of coatings. The waterborne epoxy curing agent based on the enamine bond is prepared from the following raw materials in parts by weight: 12 to 14 parts of a polyepoxy compound, 7 to 12 parts of a polyamine compound, 37 to 42 parts of a polyether-based polyacetoacetate compound, 9 to 14 parts of a diacetoacetate compound, 5 to 7 parts of a monoacetoacetate compound and 20 to 50 parts of a solvent. According to the waterborne epoxy curing agent constructed through enamine bonds, the free amine content of the obtained waterborne epoxy curing agent can be effectively reduced, and the activation period of the waterborne epoxy curing agent during use is prolonged.

The invention relates to a blocked polyurethane composition based on at least one diisocyanate and / or polyisocyanate, at least one polyol, at least one hydroxyl chain extender and at least one end-capping agent, the at least one end-capping agent being selected from malonates, acetoacetates and acetylacetonates, and the at least one polyol is selected from the group consisting of polyester polyols, polycarbonate glycols, and polycaprolactone glycols; a use of the composition; the invention discloses a preparation method of an artificial leather surface layer and the artificial leather surface layer.

Process for making up keratin materials comprising at least the application to said keratin materials of at least two distinct compositions (A) and (B): - said composition (A) comprising i) at least one compound of formula (I) comprising at least two acetoacetate functions; and ii) at least one monoalcohol comprising from 2 to 4 carbon atoms; iii) water; and iv) at least one particulate colorant; and said composition (B) comprising at least v) a crosslinking agent chosen from (poly)amine compounds, notably aminoalkylpolyalkoxysilanes, α,ω-diaminooxaalkanes, chitosans, polyetheramines, polydimethylsiloxanes comprising primary amine groups at the chain end or on side chains

This application relates to the field of ceramic precursor materials technology, and discloses a high-ceramic-yield liquid zirconium carbide precursor and its preparation method. The high-ceramic-yield liquid zirconium carbide precursor is made from raw materials comprising the following parts by weight: zirconium n-butoxide: 100 parts; allyl acetoacetate: 74-82 parts; deionized water: 2.3-3.8 parts; furfuryl alcohol-maleic anhydride adduct modifier: 48-60 parts; wherein the furfuryl alcohol-maleic anhydride adduct modifier is the Diels-Alder reaction product of furfuryl alcohol and maleic anhydride. This invention introduces a Diels-Alder adduct of furfuryl alcohol and maleic anhydride to construct a thermally latent system. At room temperature, the adduct maintains a cyclic inert structure, giving the precursor low viscosity and long-term storage stability. At high temperatures, crosslinking is achieved by releasing active monomers through a reverse Diels-Alder reaction.

A method for treating keratin fibers using at least one acetoacetate oil. The present invention relates to a method for treating keratin fibers, particularly for conditioning, styling, and / or coloring keratin fibers, preferably hair, comprising applying to the keratin fibers, in one or more successive steps, at least i) one or more compounds of formula (I), as well as its optical, geometric, and / or solvate isomers, such as hydrates, or a composition containing them: (I) formula (I) in which Z, AK1, AK2, Y, R4, Ra, Rb, p, m, n, t, q, and u are as defined in the description, and optionally ii) at least one crosslinking agent. Figure for the abstract: None

An object of the present invention is to provide a resin composition that has excellent impregnability into fibers, enables favorable continuous production of a prepreg, and enables production of a prepreg that enables favorable production of a molded article.SOLUTION: A three dimensional crosslinked structure in which a compound (A) having two or more acetoacetic acid ester groups, aldehyde groups, or triketone structures alone or in combination in a molecule and an amine compound (B) having two or more primary amino groups in a molecule are bonded to each other, and a ketimine compound (D) in which at least one primary amino group of the amine compound (B) and a ketone group of the ketone compound (C) are condensation-bonded, wherein among the primary amino groups of the amine compound (B) constituting the ketimine compound (D), a proportion of the primary amino groups bonded to the ketone compound (C) is 1kPa% or more, the ketone compound (C) having a steam pressure at 20 °C of 0. 50mol or more.SELECTED DRAWING: None

The present invention relates to a foamable composition based on multifunctional acetoacetate compound, and to its use in structural foam applications. In particular, the present invention relates to a foamable composition based on a multifunctional acetoacetate compound, a polyether polyamine, a monofunctional primary amine and a chemical blowing agent.

Title: Process for Makeup of Keratinous Materials Comprising the Application of at Least One Acetoacetate Polysaccharide Compound and a Crosslinking Agent. The present invention relates to a process for makeup of keratinous materials comprising at least the application to said keratinous materials of at least two distinct compositions (A) and (B), said composition (A) comprising at least one compound of formula (I) comprising at least two acetoacetate functional groups, at least one monoalcohol comprising 2 to 4 carbon atoms, and water, and said composition (B) comprising at least one amine crosslinking agent, with at least one of compositions (A) and (B) comprising at least one particulate coloring agent. Figure for the abstract: None

The present invention relates to a method for coloring keratin fibers employing a composition comprising at least one direct dye and / or an oxidation dye precursor and a composition comprising at least one compound with acetoacetate functions.

The application belongs to the field of polymer materials, and provides an environmentally-friendly polymer material with adjustable dynamic network and a preparation and closed-loop recycling method thereof, which comprises the following steps: carrying out a photopolymerization reaction of acetoacetic acid alkene and different functionality mercaptans in a solvent to obtain acetoacetic acid ester multimers with different functionality; carrying out a crosslinking reaction of the acetoacetic acid ester multimers and polyamine monomers in a solvent to obtain a prepolymer; curing the prepolymer to obtain a Vitrimer polymer film; and annealing, and the environmentally-friendly polymer material with adjustable dynamic network is obtained.The acetoacetic acid ester multimers with different branching conditions are prepared through ene click reaction, different network structures are given to the material, the network is adjusted, the dynamic and mechanical properties of the network are controlled, and the introduction of the vinyl amine ester bond into the polymer network provides a possibility for the closed-loop recycling upgrade of the polymer network.

The present invention relates to the use of a copolymer with acetoacetate functions or a composition comprising it to protect keratin fibers from humidity.

The invention discloses a hindered amine light stabilizer grafted modified polymer as well as a preparation method and application thereof. The modified polymer comprises a polymer main chain containing unsaturated carbon-carbon double bonds and a hindered amine light stabilizer structural unit grafted on the main chain. The two groups form chemical bond connection through a linking group containing a beta-ketone ester structure, one end of the linking group is connected with a main chain through a carbon-carbon bond, and the other end of the linking group is connected with a hindered amine unit through an ester bond. The preparation method comprises the following steps: firstly, carrying out ester exchange on hydroxyl-containing hindered amine and an acetoacetate compound to prepare a hindered amine intermediate; then, under the action of a basic catalyst, the intermediate and a polymer matrix are subjected to an addition or alkylation reaction to complete grafting. Polymerization of the light stabilizer is achieved through chemical bonding, the defects that traditional hindered amine is prone to migration and poor in extraction resistance are thoroughly overcome, the hindered amine retention rate after solvent extraction of the obtained weather-resistant polyolefin composition is larger than 70%, and the weather-resistant polyolefin composition has long-acting anti-aging performance. The method is simple in process, mild in reaction condition and wide in application range, and can be widely applied to the field of weather-resistant modification of polyolefin materials.

A method for the industrial production of teprenone and its application. The present invention belongs to the field of teprenone synthesis. The purpose of the present invention is to solve the technical problems of the existing teprenone synthesis method, which has a long route, many side reactions, and requires the use of special reagents. The method of the present invention comprises the following steps: first, farnesene is reacted with acetoacetate in the presence of a catalyst to obtain farnesene ketone ester, which is then decarboxylated to produce farnesene acetone, and then subjected to a reduction reaction, a halogenation reaction, and a Wittig reaction to obtain teprenone. The method avoids the shortcomings of existing processes, has fewer conversion steps in the synthesis route, and produces teprenone with high yield and purity, making it suitable for industrial production. The teprenone of the present invention is used as a drug for treating gastric diseases.

The present invention relates more particularly to the field of cosmetics for keratinous materials, in particular to the field of cosmetics for the care and / or makeup of the skin, and / or lips, and / or eyelashes, and / or eyebrows. The present invention is therefore directed to proposing a method for the use, in one or more steps, of i) at least one compound of formula (I) derived from the condensation of a poly(thio)ol with acetoacetate (ACAC), and ii) at least one crosslinking agent on keratinous materials. The present invention also relates to a composition comprising components i) and ii) and also to a kit comprising i) and ii).

A method for making up keratinous materials comprising the application of at least one acrylic copolymer with acetoacetate functions and a hydrophilic crosslinking agent. The present invention relates to a method for making up keratinous materials, comprising the application to said keratinous materials of at least one composition (A) comprising at least one copolymer with acetoacetate function(s) comprising repeating units derived from at least one monomer of formula (I) and at least one monomer selected from C1-C4 alkyl acrylates, C1-C4 alkyl methacrylates, at least one polyol; at least one C2-C4 alkyl acetate; at least one volatile oil, at least one C2-C4 monoalcohol; and a composition (B) comprising at least one hydrophilic crosslinking agent; an organic or mineral acid; and water; composition (A) and / or composition (B) comprising at least one particulate coloring matter.

A method for making up keratinous materials comprising the application of at least one acrylic copolymer with acetoacetate functions and a hydrophobic crosslinking agent. The present invention relates to a method for making up keratinous materials comprising the application to said keratinous materials of at least one composition (A) comprising at least one copolymer with acetoacetate function(s) comprising repeating units from at least one monomer of formula (I) and at least one monomer selected from C1-C4 alkyl acrylates, C1-C4 alkyl methacrylates; at least one polyol; at least one alkyl acetate comprising 2 to 4 carbon atoms; at least one volatile oil; at least one C2 to C4 monoalcohol; and an anhydrous composition (B) comprising at least one hydrophobic crosslinking agent, composition (A) and / or composition (B) comprising at least one particulate colouring material.

The present invention relates to a process for making up keratin materials comprising the application to said keratin materials of at least a composition (A) comprising at least, at least one copolymer bearing acetoacetate function(s) comprising repeat units derived from at least one monomer of formula (I) and from at least one monomer chosen from C1-C4 alkyl acrylates, C1-C4 alkyl methacrylates; at least one polyol; at least one alkyl acetate comprising from 2 to 4 carbon atoms; at least one volatile oil; at least one C2 to C4 monoalcohol; and a composition (B) comprising at least one crosslinking agent, optionally an organic or mineral acid; and optionally water, composition (A) and / or composition (B) comprising at least one particulate dyestuff.

The present invention is directed to a sealing layer that comprises a combination of polyurethane and poly(vinyl alcohol), the poly(vinyl alcohol) containing an acetoacetate functional group in its molecular structure. The sealing layer is formed from an aqueous sealing composition and shows water resistance and good barrier properties to non-polar fluids. The sealing layer can be used to seal microcells of electro-optic displays.

The present invention relates to the use of at least one compound containing acetoacetate functions, optionally combined with at least one (poly)amine compound or of a composition comprising same, for protecting keratin fibers from moisture.

Process for treating keratinous materials employing at least one polysaccharide compound with acetoacetate functional groups. The present invention relates to a process for treating keratinous materials, comprising applying to said keratinous materials, in one or more successive steps, at least i) one or more compounds of formula (I) as well as their optical and geometric isomers, their acid or base salts, and / or solvates, such as hydrates, or a composition containing them: (I) formula (I) in which X, R1, R2, Ra, Rb, and n are as defined in the description, optionally ii) at least one crosslinking agent, iii) optionally water. Figure for the abstract: None

The present invention relates to a method for coloring keratin fibers using at least one compound with acetoacetate functions, at least one (poly)amine compound and at least one direct dye.

The invention relates to the reduction of acetoacetate esters in the presence of amines, to compositions comprising at least two different β-hydroxybutyrate esters and to the use of activated carbon to purify a mixture comprising β-hydroxybutyrate esters and an amine and optionally a catalyst.

A continuous process for reducing an acetoacetate ester to a beta-hydroxybutyrate is disclosed herein. The continuous process includes contacting a mixture (M1) including an acetoacetate ester with hydrogen in the presence of a catalyst to obtain a mixture (M2) including a beta-hydroxybutyrate ester and collecting the beta-hydroxybutyrate ester.

The present invention relates to a process for treating keratin fibers using a basic pH composition, one or more compounds with acetoacetate functions and one or more specific polyamine compounds.

The present invention provides an aqueous polymer dispersion comprising at least one polymer having a carboxyl group and optionally an additional functional group selected from hydroxy, isocyanate, fluoro, phosphate, hydrazide, acetoacetate group and combination thereof, in which the polymer has a glass transition temperature of larger than −40° C. and less than 35° C., and the aqueous polymer dispersion has a solid content of larger than 50% by weight.

The present invention relates to a process for treating keratin fibers using one or more compounds with acetoacetate functions, one or more specific polyamine compounds and optionally one or more coloring agents.