Method of producing heat-resistant and shape memory formed produ

Details Method of producing heat-resistant and shape memory formed produ Method of producing heat-resistant and shape memory formed produ

1990-07-02

1991-10-15

Seccuro, Carman J.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264230, 264237, 264294, 264349, 26433117, 521 82, 521 92, 521140, 521134, B29C 3508, B29C 3502, C08L 2316, C08L 3104

Patent

active

050572520

ABSTRACT:
A method of forming a heat-resistant product, produced from a polymer composition comprising 40-70 weight % of a thermoplastic elastomer containing a repeating unit derived from ethylene and a repeating unit derived from propylene and 60-30 weight % of an ethylene-vinyl acetate copolymer containing 7.5 weight % or more of a vinyl acetate repeating unit, which comprises blending the polymer composition at a temperature of 160.degree. C. or less, molding it at a temperature of 180.degree. C. or less, and then cross-linking the resulting molded product by irradiating it with an electron beam or by heating to produce a foamed product which has good shape memory characteristics.

REFERENCES:
patent: 4203815 (1980-05-01), Noda et al.
patent: 4332655 (1982-06-01), Berejka

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