BETAINE COPOLYMERS WITH HYDROXYALKYLACRYLATES AND HYDROXYALKYLMETHACRYLATES

摘要

Copolymers of carboxybetaines or sulfobetaines having the formula WHEREIN R1 is hydrogen or methyl; A is oxygen or -NH-; R2 is ethylene, propylene, 2-hydroxypropylene or 2-acetoxypropylene; R3 and R4 are alkyl; n1 is 1 to 4 and X- is SO 3- or CO 2-; and about 10 to about 95.0 per cent by weight of hydroxyethylacrylate, hydroxyethylmethacrylate, hydroxypropylacrylate, hydroxypropylmethacrylate, polyethylene glycol acrylate, polyethylene glycol methacrylate, polypropylene glycol acrylate, polypropylene glycol methacrylate, polyglycerolacrylate or polyglycerolmethacrylate are disclosed. These neutral, hydrophilic copolymers are useful as binders.