Novel block copolymers including acrylonitrile sequences and seq

Details Novel block copolymers including acrylonitrile sequences and seq Novel block copolymers including acrylonitrile sequences and seq

1980-09-17

1982-06-29

Seccuro, Carman J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525294, 525336, 525374, 525376, 525379, 525380, 525384, C08F22048, C08F29300

Patent

active

043373275

ABSTRACT:
There is disclosed novel block copolymers formed of acrylonitrile sequences and sequences containing at least about 50 mole percent of acrylamide units and at most about 50 of units selected from the group consisting of carboxyl, ester, amide, hydrazide and hydroxylamide units and formed by reacting a block copolymer having acrylonitrile sequences and sequences of glutarimide units with a low molecular weight compound having a functional group selected from the group consisting of hydroxyl, primary amino, secondary amino, hydrazo and hydroxylamino group. The reaction is effected at a pH of about 7.5 and higher, preferably in the presence of a solvent and/or swelling agent.

REFERENCES:
patent: 2940952 (1960-06-01), Miller
patent: 3897382 (1975-07-01), Stoy et al.
patent: 3926930 (1975-12-01), Ohfuka et al.
patent: 3948870 (1976-04-01), Stoy et al.

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