Abstract:
Low VOC hair spray resin compositions containing homogeneous terpolymers of vinyl pyrrolidone, vinyl caprolactam and 3-(N-dimethylaminopropyl) methacrylamide are described. The hair spray compositions are made using a solution of the terpolymer which is clear and low in viscosity, and which provides a spray of relative small particle size. The hair spray compositions exhibit an effective high humidity curl retention property.
Abstract:
A charge imbalanced composition comprising: (a) about 10 to 90 mole % of a mixture of amphoteric copolymers having formulas (I) and (II) where A is present in an amount of about 0.1-0.8 mole, and B is present in an amount of about 0.05-0.4 mole, and where A is 2-6 times B, where R=C1-C4, n=1-6, R1 and R2 are independently C1-C6, R3 is H or lower alkyl, and R4=C12-C24; (b) about 10 to 90 mole % of a polymeric diacid having formula (III) where R is as defined above, and (c) about 0-20 mole % of by-product salts which are the dialkylaminoalkylamine and alkylamine salts of (a) and (b). The composition described above is made by: reacting 1 mole of an anhydride compound having formula (IV) where R is as defined above, with less than 1 mole of a mixture of about 0.1-0.8 mole of a compound having formula (A) where n, R1, R2 and R3 are as defined above, and about 0.05-0.4 of a compound having formula (B) where R4 is as defined above, and where A is 2-6 times B, isolating the product, and hydrolyzing any residual anhydride compound in water to the corresponding diacid compound.
Abstract:
A charge imbalanced composition comprising: (a) about 10 to 90 mole % of an amphoteric copolymer having formula (I) where R = alkyl C1-C4, n = 1-6, R1 and R2 are independently alkyl C1-C6, and R3 is H; (b) about 10 to 90 mole % of a polymeric diacid having formula (II) where R is as defined above, and (c) less than about 8 mole % of by-product salts which are the dialkylaminoalkylamine salts of (a) and (b). The composition described above is made by: reacting 1 mole of an anhydride compound having formula (III) where R is as defined above, with less than 1 mole of a compound having formula (IV) where n, R1 and R2 are as defined above, and R3 is H, isolating the product, and hydrolyzing residual anhydride compound in water to the corresponding diacid compound.
Abstract:
A process is described for making substantially homogeneous copolymers comprising 20-99 % of vinyl pyrrolidone (VP) and 1-80 % of N-3,3-dimethylaminopropyl methacrylamide (DMAPMA), preferably 50-95 % VP and 5-50 % DMAPMA, and, most preferably, about 80:20, by weight, having a weight average molecular weight of about 200,000 to 1,500,000, as a clear, low viscosity aqueous solution of the homogeneous copolymer, at a 5-20 % solids level, preferably about 10-15 %, by weight of the solution, having a viscosity of about 5,000 to 80,000 cps, preferably about 10,000 to 70,000 cps. The solution obtained herein has lower viscosity and better clarity, and provides hair care products with enhanced curl retention (hold), when compared to non-homogeneous copolymers of the same composition, or related existing commercial products.
Abstract:
A catalyst and method for producing N-substituted pyrrolidones utilizes a copper-palladium catalyst disposed on a support and mixed with a desired alcohol and 2-pyrrolidone. A reaction is undertaken under a hydrogen atmosphere, preferably at 50 to 1000 psig, and at a temperature ranging up to 400 DEG C. Utilizing a copper-palladium catalyst provides superior results in selectivity and yield over previous catalysts.
Abstract:
A solution of stearamidopropyl dimethyl pyrrolidonyl methyl ammonium chloride in a polyhydric alcohol at a concentration of about 1-30 % by weight in glycerol.
Abstract:
A process is described for making substantially homogeneous copolymers comprising 20-99 % of vinyl pyrrolidone (VP) and 1-80 % of N-3,3-dimethylaminopropyl methacrylamide (DMAPMA), preferably 50-95 % VP and 5-50 % DMAPMA, and, most preferably, about 80:20, by weight, having a weight average molecular weight of about 200,000 to 1,500,000, as a clear, low viscosity aqueous solution of the homogeneous copolymer, at a 5-20 % solids level, preferably about 10-15 %, by weight of the solution, having a viscosity of about 5,000 to 80,000 cps, preferably about 10,000 to 70,000 cps. The solution obtained herein has lower viscosity and better clarity, and provides hair care products with enhanced curl retention (hold), when compared to non-homogeneous copolymers of the same composition, or related existing commercial products.
Abstract:
A process is described for making substantially homogeneous copolymers comprising 20-99 % of vinyl pyrrolidone (VP) and 1-80 % of N-3,3-dimethylaminopropyl methacrylamide (DMAPMA), preferably 50-95 % VP and 5-50 % DMAPMA, and, most preferably, about 80:20, by weight, having a weight average molecular weight of about 200,000 to 1,500,000, as a clear, low viscosity aqueous solution of the homogeneous copolymer, at a 5-20 % solids level, preferably about 10-15 %, by weight of the solution, having a viscosity of about 5,000 to 80,000 cps, preferably about 10,000 to 70,000 cps. The solution obtained herein has lower viscosity and better clarity, and provides hair care products with enhanced curl retention (hold), when compared to non-homogeneous copolymers of the same composition, or related existing commercial products.