Patent ID: 8445616

Claim:
A polymer consisting essentially of: A. at least one cationic monomeric unit A, having a cationic charge at a pH in the range of from 4 to 12, wherein said at least one monomeric unit A is selected from the group consisting of: wherein R 30 is H or —CH 3 , wherein R 31 is a bond or and R 32 and R 33 are —CH 3 or —C 2 H 5 ; B. at least one monomeric unit B selected from the group consisting of: a monomeric unit of Formula IV wherein R 20 is selected from the group consisting of H and CH 3 ; R 21 is selected from the group consisting of: wherein e is an integer from 3 to 25; —O—(CH 2 ) f —CH 3 wherein f is an integer from 0 to 25; wherein g is an integer from 1 to 100, h is an integer from 1 to 100, R 23 is —H, —CH 3 or —C 2 H 5 , R 24 is —CH 3 or —C 2 H 5 ; wherein j is an integer from 1 to 25; wherein k is an integer from 1 to 25; —NH—(CH 2 ) m —NH 2 .HCI, wherein m is an integer from 1 to 25; and a polyhydroxy monomeric unit of Formula VI: wherein n is an integer from 1 to 50; and C. optionally at least one monomeric unit C selected from the group consisting of: wherein R 25 is —H or —CH 3 , wherein R 26 is —H or —CH 3 , a molecular weight of about 10,000 to about 300,000 daltons, and wherein said polymer has an average cationic charge density of 0.01 to 2.77 units per 100 daltons molecular weight at a pH in the range of 4 to 12; wherein the molar ratio of said monomeric unit A: monomeric unit B: monomeric unit C is 1 to 9:1 to 9:1:0 to 6 respectively; wherein the polymer is a suds stabilizer.