US 7,528,208 B2
	Siloxane prepolymer containing pendant and end-capping cationic and polymerizable groups
Derek A. Schorzman, Ellicott City, Md. (US); Joseph C. Salamone, Boca Raton, Fla. (US); and Jay F. Kunzler, Canandaigua, N.Y. (US)
Assigned to Bausch & Lomb Incorporated, Rochester, N.Y. (US)
Filed on Nov. 30, 2006, as Appl. No. 11/565,151.
Claims priority of provisional application 60/756982, filed on Jan. 06, 2006.
Prior Publication US 2007/0160649 A1, Jul. 12, 2007
Int. Cl. C08G 77/26 (2006.01); C08G 77/04 (2006.01); C08G 77/14 (2006.01)

U.S. Cl. 528—28  [528/27; 528/24; 528/33; 528/26; 528/35; 528/37; 528/42; 526/279]

22 Claims

1. A cationic random copolymer of formula (I): wherein R1 and R5 are the same or different and selected from the following radicals of formulae II-IV: wherein at least one of R1 or R5 is a radical of Formula IV with the proviso that when R5 is the same and is formula III, R1 is not of formula II, x is 0 to 1000, y is 1 to 300, L can be the same or different and is selected from the group consisting of urethanes, carbonates, carbamates, carboxyl ureidos, sulfonyls, a straight or branched C1-C30 alkyl group, a C1-C30 fluoroalkyl group, a C1-C20 ester group, an alkyl ether, cycloalkyl ether, cycloalkenyl ether, aryl ether, arylalkyl ether, a polyether containing group, an ureido group, an amide group, an amine group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C3-C30 cycloalkenyl group, a substituted or unsubstituted C5-C30 aryl group, a substituted or unsubstituted C5-C30 arylalkyl group, a substituted or unsubstituted C5-C30 heteroaryl group, a substituted or unsubstituted C3-C30 heterocyclic ring, a substituted or unsubstituted C4-C30 heterocyclolalkyl group, a substituted or unsubstituted C6-C30 heteroarylalkyl group, a C5-C30 fluoroaryl group, or a hydroxyl substituted alkyl ether and combinations thereof; X− is at least a single charged counter ion; each R2 and R3 are independently hydrogen, a straight or branched C1-C30 alkyl group, a C1-C30 fluoroalkyl group, a C1-C20 ester group, an alkyl ether, cycloalkyl ether, cycloalkenyl ether, aryl ether, arylalkyl ether, a polyether containing group, an ureido group, an amide group, an amine group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C3-C30 cycloalkenyl group, a substituted or unsubstituted C5-C30 aryl group, a substituted or unsubstituted C5-C30 arylalkyl group, a substituted or unsubstituted C5-C30 heteroaryl group, a substituted or unsubstituted C3-C30 heterocyclic ring, a substituted or unsubstituted C4-C30 heterocyclolalkyl group, a substituted or unsubstituted C6-C30 heteroarylalkyl group, fluorine, a C5-C30 fluoroaryl group, or a hydroxyl group; and each R4 is independently H or a methyl radical.