Production of graft polymers

Details Production of graft polymers Production of graft polymers

1978-02-27

1980-06-03

Michl, Paul R.

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

Synthetic resins

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

525302, 525383, 525263, C08F25502

Patent

active

042061555

ABSTRACT:
A continuous process for the production of graft polymers of oxidizable polymers as backbone and radically polymerizable monomers for forming the side chains, characterized in that an intensively stirred melt of the backbone polymer is brought into contact for at most 10 minutes with oxygen or oxygen-containing gases under a pressure of from 1 to 150 bars and at a temperature of from 100.degree. to 300.degree. C., immediately after which one or more radically polymerizable monomers is/are added with intensive stirring in the absence of oxygen and oxygen-containing gas, and after their polymerization the graft polymer formed is isolated.

REFERENCES:
patent: 3832423 (1974-08-01), Milkovich et al.
patent: 3849516 (1974-11-01), Plank
patent: 3862265 (1975-01-01), Steinkamp et al.

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