Thermoplastic compositions with elastic memory and a process for

Details Thermoplastic compositions with elastic memory and a process for Thermoplastic compositions with elastic memory and a process for

1993-02-04

1993-10-05

Seccuro, Jr., 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...

524518, 525193, 525194, C08L 2308, C08L 2316, C08L 4500

Patent

active

052506282

ABSTRACT:
This thermoplastic composition with elastic memory comprises a mixture of about 5-20 parts by weight of polynorbornene which may be crosslinked, about 80-95 parts by weight of at least one polyolefin and an amount of plasticiser for polynorbornene sufficient for reducing its glass transition temperature down to the range of rubbers.
According to the invention, the polyolefin chosen is a composition comprising 80 to 100% of at least one copolymer made of ethylene and at least one .alpha.-olefin chosen from propylene and 1-butene, said copolymer having a relative density between 0.850 and 0.890 and a flow index between 0.3 and 15 dg/min, and 0 to 20% of at least one polypropylene polymer.
Applications: Air-tight seals, footwear parts, flexible tubes, damping elements, profiles for the construction and automobile industries, and the like.

REFERENCES:
patent: 3676390 (1972-07-01), Vergne et al.
patent: 4203884 (1980-05-01), Coran et al.
patent: 4277578 (1981-07-01), Yoshimura et al.
patent: 4302557 (1981-11-01), Yoshimura et al.
patent: 4336212 (1982-06-01), Yoshimura et al.
patent: 4336350 (1982-06-01), Yoshimura et al.
patent: 4379888 (1983-04-01), Yoshimura et al.
patent: 4454303 (1984-06-01), Yoshimura et al.
patent: 4481334 (1984-11-01), Yoshimura et al.
patent: 4499241 (1985-02-01), Yoshimura et al.
patent: 4537935 (1985-08-01), Yoshimura et al.
patent: 4542886 (1985-09-01), Yoshimura et al.
patent: 4701496 (1987-10-01), Yoshimura et al.
patent: 4835218 (1989-05-01), Yoshimura et al.
patent: 4992511 (1991-02-01), Yamamoto et al.
patent: 5104940 (1992-04-01), Hert et al.

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