Method of preparing modified polyethylenes

Details Method of preparing modified polyethylenes Method of preparing modified polyethylenes

1988-01-22

1988-11-29

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...

525301, 525 74, 525 78, 525265, 525263, C08F25502

Patent

active

047882646

ABSTRACT:
A method of preparing a modified polyethylene which comprises melt kneading 100 parts by weight of (A) a high density polyethylene having a branching degree of not more than 5 per 1,000 carbon atoms of principal chain, from 0.2 to 3 parts by weight of (B) an unsaturated carboxylic acid or a derivative thereof, and from 0.01 to 0.5 part by weight of (C) an organic peroxide, the weight ratio of (C) to (B), (C)/(B), being from 0.01 to 0.5.
The modified polyethylenes obtained by the use of the method of the present invention not only have excellent heat resistance, moldability, and so forth, but also are extremely improved in their adhesion property, especially in the property of adhering to a saponified ethylene-vinyl acetate copolymer, a polyamide resin, and a polyester resin, and therefore the modified polyethylenes can be advantageously used with these materials for the production of laminated boards.

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