Heat-shrinkable, tubular foam

Details Heat-shrinkable, tubular foam Heat-shrinkable, tubular foam

1989-07-06

1991-12-10

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 459, 264 54, 264232, 264320, 264DIG5, 264DIG18, 521134, 521140, 521149, 521150, 525211, 525222, 525227, 525240, C08V 910, B29C 6722

Patent

active

050718860

ABSTRACT:
A heat-shrinkable, tubular foam can be produced from a composition which comprises 100 parts by weight of an ethylene-.alpha.-olefin-nonconjugated diene copolymer, 1 to 20 parts by weight of a foaming agent, 5 to 100 parts by weight of a thermoplastic resin having a Vicat softening point of 50.degree. to 200.degree. C., and up to 10 parts by weight of a crosslinking agent, by shaping the composition into a tube, crosslinking and foaming the tube and pressurizing the tube in the interior to inflate it. This heat-shrinkable, tubular foam is best suited for jacketing pipes, hoses, and the like.

REFERENCES:
patent: 3560600 (1971-02-01), Giliniecki
patent: 4212787 (1980-07-01), Matsuda et al.
patent: 4252909 (1981-02-01), Honma et al.
patent: 4307204 (1981-12-01), Vidal
patent: 4352893 (1982-10-01), Johnson et al.
patent: 4680317 (1987-07-01), Kuhnel et al.
patent: 4705657 (1987-11-01), Poulin
patent: 4804733 (1989-02-01), Bataille
patent: 4900490 (1990-02-01), Kozma
Chemical Abstracts, vol. 90, Part 6, Feb. 5, 1979, p. 55, Abstract No. 40029f.

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