Cross-linked compositions based on polyethylene and cross-linked

Details Cross-linked compositions based on polyethylene and cross-linked Cross-linked compositions based on polyethylene and cross-linked

1991-10-21

1994-06-28

Seidleck, James J.

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

Synthetic resins

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

525 66, 525 72, 525 74, 525 78, 525 80, 525100, 525103, 525106, 525207, 525221, 525227, 525240, 525431, C08L 2326, C08L 2904, C08L 3308, C08L 3302

Patent

active

053247795

ABSTRACT:
Crosslinkable compositions with a polyethylene base are described which comprise a major proportion, for example 65 to 95% by weight, of at least one polymer selected from the polyethylenes grafted by a silane and ethylene-triethoxyvinylsilane copolymers; a minor proportion, for example, from 5 to 35% by weight, of at least one polymer selected from the hydrophilic polymers which are incompatible with ethylene polymers; as well as, added to the total weight of polymers (a) and (b), a small proportion, for example, from 1 to 10% by weight, of at least one polymer selected from the copolymers and the terpolymers with an ethylene base to react chemically with said incompatible hydrophilic polymer; and a catalytic proportion, for example of 0.001 to 0.3% by weight, of at least one hydrolytic catalyst. These crosslinkable compositions can be shaped by extrusion, extrusion blow-molding or injection molding and then crosslinked by heating in the presence of water.

REFERENCES:
patent: 3646155 (1972-02-01), Scott
patent: 4526930 (1985-07-01), Keogh
patent: 4613646 (1986-09-01), Sandvick
patent: 4857250 (1989-08-01), Gale et al.
patent: 5075382 (1991-12-01), Ohmae et al.

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