Lightly crosslinked linear olefinic polymer foams and process fo

Details Lightly crosslinked linear olefinic polymer foams and process fo Lightly crosslinked linear olefinic polymer foams and process fo

1984-11-16

1987-12-22

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 53, 521 79, 521 81, 521 82, 521 86, C08J 914

Patent

active

047147164

ABSTRACT:
A substantially closed-celled linear polyolefin foam is made by melt processing under pressure a linear polyolefin together with a volatile blowing agent and a crosslinking agent and then expanding the polymer. Suitable crosslinking agents, including azido and vinyl functional silanes, organic peroxides, multifunctional vinyl monomers, and oxygen, increase the melt tension and melt viscosity of the polymer by lightly crosslinking the polymer with itself to enable the production of foams having improved properties in comparison with branched polyolefin foams.

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Development Data Sheet, Hercules Coupling Agent 53076, Bulletin OPD-24D, 6 pp.

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