Process for melt grafting epoxy compounds to polymers

Details Process for melt grafting epoxy compounds to polymers Process for melt grafting epoxy compounds to polymers

1990-04-23

1991-11-19

Bleutge, John C.

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

Synthetic resins

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

525286, 525314, 525319, 525322, 525324, C08F25506, C08F27902, C08F26508, C08F28700

Patent

active

050667262

ABSTRACT:
A process to graft epoxy containing functional monomers to a base polymer is provided, the process comprising the steps of: providing a melt of a base polymer; containing the melt of the base polymer with a functional monomer in the presence of a free radical initiator at a temperature of less than 240.degree. C., the functional monomer comprising alpha-beta ethylenic unsaturation and an epoxy group; and recovering an epoxy functionalized polymer. Grafting the epoxy containing monomer to the base polymer at temperatures of 240.degree. C. and less results in a low level of hydrolyzed epoxy groups.

REFERENCES:
patent: 4578429 (1986-03-01), Gergen et al.
patent: 4657971 (1987-04-01), Shiraki et al.

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