Blends of polypropylene and elastic alpha-olefin/cyclic olefin c

Details Blends of polypropylene and elastic alpha-olefin/cyclic olefin c Blends of polypropylene and elastic alpha-olefin/cyclic olefin c

1995-10-06

1998-06-09

Teskin, Fred

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

Synthetic resins

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

525210, 525211, 525216, 525387, 526281, 526308, C08L 4500, C08L 2326

Patent

active

057635323

ABSTRACT:
Blends of semi-crystalline polymers with rubbery thermoplastic copolymers are provided. The rubbery thermoplastic copolymers are elastic at temperatures above their Tg's and properties similar to thermoplastic elastomers and surface tensions 5 dynes/cm or more different, preferably greater than the surface tension of the semi-crystalline polymer. Improved properties include good elastic recovery, toughness, and high elasticity without significant loss in optical properties.

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patent: 5008356 (1991-04-01), Ishimaru et al.
patent: 5087677 (1992-02-01), Brekner et al.
patent: 5292811 (1994-03-01), Murata et al.

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