Hydrophilic siloxane latex emulsions
AssigneeCromption Corporation
InventorsAnna Czech, Kalman Koczo
Life of this patent
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Abstract
Emulsions and dispersions of polymers formed from acrylated hydrophilic polysiloxanes and their copolymers with acrylate/methacrylate comonomers are taught herein wherein the polymer is formed in a solvent via radically catalyzed polymerization. Such a polymer has utility in personal care applications, as well as textile finishes and coating formulations.
Claims20
A liquid composition comprising:
- a) a polymer formed from the polymerization in a solvent of monomers consisting essentially of acrylated or methacrylated polyether siloxane copolymers wherein the siloxane copolymer is of the formula
- [R3SiO1/2]m[O1/2SiR2O1/2]n[SiO3/2R]o[SiO4/2]p
- wherein R is selected from R1 and P, wherein each R1 and P is the same or different and each R1 is a monovalent hydrocarbon group;
- each P is
- R3[O(CbH2bO)zCOCR4═CH2]g
- wherein, R3 is a polyvalent organic moiety, g is the valency of R3 minus 1, R4 is hydrogen or methyl;
- b=2 to 4, z=1 to 100, and m+n+p+o=1 to 100, at least one R is P;
- n=1 to 100;
- when o is not zero, n/o<10:1;
- when p is not zero, n/p<10:1;
- and m=0 to 10, with the proviso that the average acrylate functionality is >1 unsaturated groups (P) per molecule, and
- b) said solvent.
A composition comprising:
- a polymer formed from the polymerization in a solvent of monomers consisting essentially of acrylated or methacrylated polyether siloxane copolymers wherein the siloxane copolymer is of the formula
- QR12Si[OSiR12]xOSiR12Q
- wherein x is 0 to 100, each R1 is an alkyl of 1 to 4 carbons, and each Q is
- R3[O(CbH2bO)zCOCR4═CH2]g
- wherein R3 is a polyvalent organic moiety, g is the valency of R3 minus 1, R4 is hydrogen or methyl;
- b=2 to 4, z=1 to 100.
A process comprising polymerizing monomers consisting essentially of an acrylate or methacrylate polyether siloxane copolymer in a solvent to form a liquid composition of a polymer of said siloxane copolymer and said solvent, wherein the siloxane copolymer is of the formula
- [R3SiO1/2]m[O1/2SiR2O1/2]n[SiO3/2R]o[SiO4/2]p
- wherein R is selected from R1 and P, wherein each R1 and P is the same or different and each R1 is a monovalent hydrocarbon group;
- each P is
- R3[O(CbH2bO)zCOCR4═CH2]g
- wherein, R3 is a polyvalent organic moiety, g is the valency of R3 minus 1, R4 is hydrogen or methyl;
- b=2 to 4, z=1 to 100, and m+n+p+o=1 to 100, at least one R is P;
- n=1 to 100;
- when o is not zero, n/o<10:1;
- when p is not zero, n/p<10:1;
- and m=0 to 10, with the proviso that the average acrylate functionality is >1 unsaturated groups per molecule.
A composition comprising:
- a copolymer formed from the polymerization in a cyclic or linear polydimethylsiloxane of an acrylated or methacrylated polyether siloxane copolymer with an acrylate or methacrylate wherein the siloxane copolymer is present at 1 to 99 percent by weight of the resulting copolymer.
An acrylated or methacrylated polyether siloxane copolymer wherein the siloxane copolymer is of the formula
- [R3SiO1/2]m[O1/2SiR2O1/2]n[SiO3/2R]o[SiO4/2]p
- wherein R is selected from R1 and P, wherein each R1 and P is the same or different and each R1 is a monovalent hydrocarbon group;
- each P is
- R3[O(CbH2bO)zCOCR4═CH2]g
- wherein, R3 is a polyvalent organic moiety equal to g+1, g is 2 or 3, R4 is hydrogen or methyl;
- b=2 to 4, z=1 to 100, and m+n+p+o=1 to 100, at least one R is P;
- n=1 to 100;
- when o is not zero, n/o<10:1;
- when p is not zero, n/p<10:1;
- and m=0 to 10.
Dependencies are inferred from the claim text.