Copolymers of 3-methacryloyloxy-2-hydroxypropyl trimethylammoniu

Details Copolymers of 3-methacryloyloxy-2-hydroxypropyl trimethylammoniu Copolymers of 3-methacryloyloxy-2-hydroxypropyl trimethylammoniu

1989-12-26

1992-07-21

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F 1802

Patent

active

051323834

ABSTRACT:
The present invention provides a copolymer comprising the polymerization product of two or more vinyl monomers wherein one of the monomers is a mixture of 3-methacryloyloxy-2-hydroxypropyltrimethylammonium halide and 2-methacryloyloxy-3-hydroxypropyltrimethylammonium halide salt. The copolymer has an intrinsic viscosity greater than about 5 dl/g. The preferred copolymer comprises the polymerization product of acrylamide and a mixture of 3-methacryloyloxy-2-hydroxypropyltrimethylammonium chloride and 2-methacryloyloxy-3-hydroxypropyltrimethylammonium chloride. The copolymers of the present invention are particularly useful as flocculants.

REFERENCES:
patent: 3059024 (1962-10-01), Goldberg et al.
patent: 3321649 (1967-05-01), De Benedictis et al.
patent: 3329706 (1967-07-01), Sobolev
patent: 3397227 (1968-08-01), Sobolev
patent: 4169208 (1990-09-01), Kametani et al.
patent: 4374206 (1983-02-01), MacDonald et al.

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