US 7,538,160 B2
Trifluorovinyl aromatic containing poly(alkyl ether) prepolymers
Derek Schorzman, Pittsford, N.Y. (US); and Joseph C. Salamone, Fairport, N.Y. (US)
Assigned to Bausch & Lomb Incorporated, Rochester, N.Y. (US)
Filed on Jul. 01, 2005, as Appl. No. 11/173,705.
Prior Publication US 2007/0004897 A1, Jan. 04, 2007
Int. Cl. C08F 114/18 (2006.01)
U.S. Cl. 525—326.2  [525/50; 525/292; 526/211; 526/242] 14 Claims
OG exemplary drawing
 
1. A poly(alkyl ether)prepolymer of the general formula T-(P)n-T wherein n is 1 to about 100,000, T is independently of the general formula

OG Complex Work Unit Drawing
wherein L is an optional linking group and is independently a straight or branched C1-C30 alkylene group, a C3-C30 cycloalkylene group, a C5-C30 aryl group, an ether group, a C1-C20 ester group, an amide group, a siloxanyl, an arylsiloxanyl or a fluorosiloxanyl, R1 independently represents one or more inertly substituted groups; X is independently a group which links the inertly substituted groups and the trifluorovinyl group; and P is independently an oxyalkylene radical of the general formula

OG Complex Work Unit Drawing
wherein R2 and R3 are independently hydrogen, a straight or branched C1-C6 alkyl group, a C3-C30 cycloalkyl group, a C5-C30 aryl group, a straight or branched C1-C6 fluoroalkyl group, a C3-C30 fluorocycloalkyl group, a C5-C30 fluoroaryl group, an ether group, a C1-C20 ester group, an amide group an amine group, fluorine, a vinyl group, or a hydroxyl group and m is 1 to about 10.