Hydrophilic curable ethoxylated silicones
AssigneeThe Procter & Gamble Company
InventorsEugene Paul Gosselink, Toan Trinh, Robb Richard Gardner
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Abstract
This invention relates to hydrophilic curable alkoxylated silicone polymers for surface modification and are useful in, e.g., fiber and fabric care, hair care, skin care, surface care, and car care compositions. The compounds are curable silicone polymers which contain one or more polyalkyleneoxy groups, preferably polyalkyleneoxy pendant groups, comprising at least some ethyleneoxy units, said polyalkyleneoxy pendant groups are preferably capped with low molecular weight alkyl groups, such as C1-C6 alkyl groups. These compounds are substantive to the surface but keep the surface hydrophilic.
Claims45
A silicone polymer which conforms to the following structure:
- (R1)aR3−aSi—(—O—SiR2)m—(—O—SiRA)n—(—O—SiRB)p—(—O—SiRD)q—[OSiR2—J—(G)g—(J)j—(E)k—J—SiR2]r—O—Si(R1)bR3−b
- wherein:
- each R is the same or different and is selected from the group consisting of alkyl, aryl, and mixtures thereof;
- each A is the same or different and is selected from the group consisting of hydrogen, —OH, —OR, —OCOCH3, —CH2CH2Si(OR)3, —CH2CH2Si(OR)2R, —CH2CH2Si(OR)R2, and mixtures thereof;
- each optional B is an —X—E group with each X being a hydrocarbon or oxygenated hydrocaxbon linking group, and each E being a cationic nitrogen functional group;
- each optional D is a poly(ethyleneoxy/propyleneoxy) group having the structure:
- —Z—O(C2H4O)c(C3H6O)dR3
- wherein each Z is a linking group, selected from the group consisting of hydrocarbon linking group, oxygenated hydrocarbon linking group, aminohydrocarbon linking group, and mixtures thereof;
- each R3 is the same or different and is selected from the group consisting of hydrogen, R, E, JE, —CH2CH(R)OH, —CH2C(R)2OH, —CH2CH(OH)CH2OR, —CH2CH(OH)CH2(OCH2CH2)eOR, tetrahydropyranyl, —CH(R)OR, C(O)H, —C(O)R, and mixtures thereof;
- each c is at least about 2, total c (for all polyalkyleneoxy pendant groups) has a value of from about 4 to about 2500;
- total d has a value of from 0 to about 1000, c is equal or larger than d;
- and each e is from 1 to about 20;
- each optional G is —O(C2H4O)v(C3H6O)w—;
- each J is selected from the group consisting of X, —CH2CH(OH)CH2—, and mixtures thereof;
- each v is from 0 to about 200;
- each w is from 0 to about 50, and v is equal or larger than w;
- each g and k is from 0 to about 10;
- j is g+k−1, providing that no O—O bonds are formed;
- each R1 group is selected from the same or different group and is selected from the group consisting of R, A, B, and D;
- each a and b is an integer from 0 to 3;
- m is from about 5 to about 1600;
- n, a, and b, and the R1 groups are selected such that the silicone polymer comprises at least one reactive Si functional group in the form of an Si—A group, selected from the group consisting of Si—H, Si—OH, Si—OR, Si—OCOR, and mixtures thereof;
- wherein a ratio of n to (m+n) is from 0 to about 1:2;
- and when p is not 0, a ratio of n to (m+n+p) is from 0 to about 1:2;
- p, a, and b, and the R1 groups are selected such that the silicone polymer optionally comprises at least one cationic group in the form of an Si—B group;
- wherein a ratio of p to (m+n+p) is from 0 to about 1:2;
- q, a, and b, and the R1 groups are selected such that the silicone polymer optionally comprises at least one poly(ethyleneoxy/propyleneoxy) Si—D group;
- wherein a ratio of q to (m+n+p+q) is from about 1:1000 to about 1:3;
- and
- r is from 0 to about 100, with r being 0 when neither a polyalkyleneoxy group nor a cationic group is part of the polymer backbone;
- and when one or more polyalkyleneoxy groups and/or cationic groups are part of the polymer backbone, a ratio of r to (m+n+p) is from about 1:1000 to about 1:2;
- wherein the different —O—SiR2—, —O—SiRA—, —O—SiRB—, and —O—SiRD— groups can be distributed randomly in the silicone backbone and/or organized as block copolymers of different degrees.
Dependencies are inferred from the claim text.