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US 5,478,886 AGranted
Acrylic block copolymers
AssigneeE. I. Du Pont de Nemours and Company
InventorYoung H. Kim
Life of this patent
Estimating the term…
Abstract
Disclosed herein are block copolymers in which one the repeat units in one type of block is derived from (meth)acrylate esters, and repeat units in a second type of block are derived from .alpha.-fluoroacrylate esters. Also described is a process for making these block copolymers by Group Transfer Polymerization. The block copolymers are useful as for stabilizing emulsions and suspensions and for modifying the surface properties of objects.
Claims7
A block copolymer, consisting essentially of:
- at least one first polymer block which consists essentially of repeat units which are derived from one or more esters of acrylic or methacrylic acid, or one or more esters of acrylic acid and methacrylic acid;
- and
- at least one second polymer block which consists essentially of repeat units which are derived from one or more esters of .alpha.-fluoroacrylic acid;
- and provided that said second polymer block has a degree of polymerization of 3 to about 50.
1 more element
Dependencies are inferred from the claim text.