Preparation of water-soluble copolymers based on monoethylenical

Details Preparation of water-soluble copolymers based on monoethylenical Preparation of water-soluble copolymers based on monoethylenical

Filed on

1989-03-30

Date issued

1990-05-15

Examiner

Schofer, Joseph L.

Patent Class

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

SubClass

Synthetic resins

SubSubClass

Polymers from only ethylenic monomers or processes of...

Other Related Categories

526214, 526220, 526224, 52631843, C08F 214, C08F 610, C08F22006, C08F22028

Type

Patent

Status

active

Patent number

049259059

Description

ABSTRACT:
Water-soluble copolymers having a K value of from 8 to 100 (determined on the Na salt of the copolymers according to H. Fikentscher in aqueous solution at 25.degree. C., at a pH of 7 and at a concentration of the Na salt of the polymer of 1% by weight) are prepared by copolymerization of monomer mixtures of

REFERENCES:
patent: 3925329 (1975-12-01), Heinrich et al.
patent: 4027082 (1977-05-01), Gavvilova et al.
patent: 4351922 (1982-09-01), Yoshida et al.
patent: 4794139 (1988-12-01), Baden et al.

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