41 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.

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.

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 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 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.

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 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 the field of the cosmetic treatment of keratin fibres, preferably the hair. The invention is directed toward proposing a process for treating keratin fibres using the bleaching of keratin fibres artificially dyed beforehand via a dyeing process using compounds of acetoacetate type and at least one pigment, by applying to said previously dyed keratin fibres an aqueous composition (D) having an acidic pH and comprising at least one particular acidic agent.

The present invention relates to the field of cosmetic treatment of keratin fibers and in particular to the dyeing of keratin fibers, preferably the hair. It is thus an object of the present invention to propose a novel dyeing process comprising the application to said keratin fibers of polymers bearing acetoacetate units which provide excellent technical properties, in particular in terms of the persistence of the color they provide. More precisely, the subject of the present invention is a process for dyeing keratin fibers such as the hair, comprising the application to keratin fibers of at least one composition A comprising at least one aminoalkoxysilane chosen from compounds of formula (I) or (Γ), and the application to keratin fibers of at least one composition B different from composition A, comprising at least one polymer P comprising repeat units obtained from at least one monomer of formula (III). Said composition A and / or composition B comprise at least one colorant chosen from pigments, direct dyes and mixtures thereof.

The present invention relates to a process for coloring keratin fibers comprising: - at least one application step P on said keratin fibers of a composition comprising at least one protease-type enzyme, then - the application on said keratin fibers, in one or more steps, of the following ingredients, included in one or more separate compositions: i) at least one compound with particular acetoacetate functions, ii) at least one coloring agent selected from pigments, direct dyes, and mixtures thereof; and iii) at least one (poly)amine compound.

Provided is a method for enzymatic synthesis of 3-hydroxybutyrate, which uses acetoacetate as a substrate and uses alcohol dehydrogenase SEQ ID NO: 1 or a mutant thereof SEQ ID NOs: 3-27 to catalyze a reduction reaction to obtain 3-hydroxybutyrate.

The application discloses an acrylate emulsion and a preparation method and application thereof, and the emulsion is prepared by emulsion polymerization of raw material components including the following mass percentages: a) 15-70 wt% of butyl acrylate, b) 1.3-10 wt% of an olefinically unsaturated monomer containing an acetoacetic ester functional group, c) 0.5-5 wt% of an unsaturated hydrophilic monomer, d) 0.2-5% of a reactive silane coupling agent, e) 10-40% of styrene, f) 1-20% of maleic anhydride, g) 1-40% of other olefinically unsaturated monomers, and h) 10-20% of an amine type post-crosslinking monomer. The emulsion is mainly applied to building interior wall coatings, and the emulsion has a relatively low MFFT without adding a film forming aid, and the coating prepared from the emulsion has excellent scrub resistance and freeze-thaw stability, low VOC content and good environmental protection performance.

The invention discloses a synthesis method of (Z) type conjugated enol phosphate, which comprises the following steps: (1) synthesis of enol phosphate: reacting 4-chloroacetoacetate with phosphite ester, ending LC-MS (liquid chromatography-mass spectrometry) detection, and separating and purifying the product to obtain enol phosphate; and (2) synthesis of (Z) type conjugated enol phosphate: mixing enol phosphate, triethylamine and acetonitrile, stirring at room temperature for reaction, ending LC-MS detection, and separating and purifying the product to obtain the (Z) type conjugated enol phosphate. The method has the advantages of milder reaction conditions, higher efficiency, higher yield and better selectivity.

Disclosed are methods of curing a composition comprising (a) an acetoacetate-containing compound and (b) a blocked polyamine. The method includes exposing the composition to electromagnetic radiation generated by a laser to cure the composition. Also disclosed are substrates comprising a coating cured by any of the methods disclosed herein.

The present invention relates to a process for treating keratin materials, comprising the application to said keratin materials, in one or more successive steps, of at least: i) at least one polyester of formula (I) below, comprising at least two acetoacetate functions (including the optical or geometrical isomers and / or solvates thereof such as hydrates) or a composition containing same: (Z)–[O-C(O)-C(Ra)(Rb)-C(O)-R4]u (I), in which formula (I) Z, u, R4, Ra and Rb are as defined in the description, and optionally ii) at least one crosslinking agent

A compound comprising polyacetoacetate functionality and at least one urethane linkage is disclosed. A coating composition comprising the (i) compound comprising polyacetoacetate functionality and at least one urethane linkage, (ii) a blocked polyamine, and (iii) a polyepoxide reactive with the condensation product of (i) and (ii) is also disclosed. A method of preparing a compound comprising polyacetoacetate functionality and at least one urethane linkage is also disclosed.

The invention discloses a preparation method and application of a reactive diluent containing a dynamic intercalated urethane bond. The preparation method comprises the following steps: removing moisture from a monomer containing acetoacetate bonds and double bonds and polyether amine; adding polyether amine into the dehydrated monomer containing the acetoacetate bond and the double bond while stirring in a closed environment, and reacting for 2-4 hours at the temperature of 20-25 DEG C; and adding an excessive amount of water absorbent into the obtained product, and carrying out suction filtration to obtain the reactive diluent containing the dynamic intercalated carbamate bond. The obtained reactive diluent is low in viscosity, rich in raw material source, free of heating in the production process, capable of being generated through a one-step method, simple in process, low in cost and suitable for industrial production. The UV-LED (Ultraviolet-Light Emitting Diode) light-cured resin prepared by applying the active diluent containing the dynamic intercalated urethane bond has good degradability, mechanical property and reprocessing property.

The application provides a method for synthesizing salicylate by cyclization and dehydrogenation, specifically, C3 aldehyde and acetoacetic ester are subjected to gas phase cyclization reaction under the catalysis of a solid base to obtain 2-oxo-3-cyclohexene acid ester intermediate, and the intermediate is then subjected to dehydrogenation aromatization under the action of a dehydrogenation catalyst and an assistant to obtain salicylate product. The application uses cheap and readily available C3 aldehyde and acetoacetic ester as starting materials, quickly synthesizes salicylate through two steps, has a short synthesis route, high yield, less waste and good cost advantage; in the gas phase condensation cyclization reaction, lithium phosphate and potassium salt solid mixture are used as the catalyst to efficiently catalyze the condensation reaction of C3 aldehyde and acetoacetic ester, and 2-oxo-3-cyclohexene acid ester intermediate is obtained; in the dehydrogenation reaction, the dehydrogenation catalyst and nitrite assistant are used in combination, the nitrite promotes the isomerization between the ketonic form and the enolic form of 2-oxo-3-cyclohexene acid ester, reduces the temperature required for the dehydrogenation reaction, and promotes the dehydrogenation reaction.

Disclosed herein are compositions that include a combination of: (1) a non-xanthine CNS stimulant or nootropic; (2) a ketone body or ketone body precursor, such as beta-hydroxybutyrate (BHB) salt, BHB ester, BHB acid, acetoacetate salt, acetoacetate ester, acetoacetic acid, 1,3-butanediol, medium chain fatty acid, or ester of medium chain fatty acid; and (3) optionally a dietetically or pharmaceutically acceptable carrier. The composition may include a vasodilator. The composition may include a short or medium chain fatty acid or ester thereof in addition to or instead of the ketone body or ketone body precursor. The composition can provide enhanced cognitive flexibility, improved sustained attention, improved working memory, and neuroprotection in a mammal. The composition can also beneficially increase resting energy expenditure (resting metabolic rate), particularly when in a state of ketosis, enhancing fat loss principally through ketosis while promoting muscle formation and maintenance, as well as modulating lethargy / lightheadedness when entering a ketogenic state.

The application discloses a high-solid low-surface-energy template paint for an aluminum alloy template, a preparation method of the template paint and an aluminum alloy template with a coating on a surface, and belongs to the technical field of template paints. The template paint mainly comprises the following components in percentage by mass: a hydrogen donor 40-60%, a hydrogen acceptor 20-40%, a latent catalyst 0.5-2%, modified silicon oil 0.5-5%, a solvent 10-15%, wherein the hydrogen donor is prepared by ring-opening reaction of liquid epoxy resin with amino alcohol and then ester exchange reaction with acetoacetic acid ester; and the hydrogen acceptor is composed of one or more of 1,6-hexanediol diacrylate, trimethylolpropane triacrylate and pentaerythritol triacrylate and diphenylmethane bismaleimide. The coating formed on the surface of the aluminum alloy template by the high-solid low-surface-energy template paint for the aluminum alloy template has the characteristics of excellent adhesion, good concrete demolding property, high impact resistance and excellent alkali resistance, and can be demolded for multiple times.