Thermoplastic molding compositions

Details Thermoplastic molding compositions Thermoplastic molding compositions

1990-07-31

1993-03-23

Short, Patricia A.

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

Synthetic resins

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

525166, 525173, 525176, 525180, C08L 3102, C08L 6702, C08L 7908

Patent

active

051964821

ABSTRACT:
Compositions comprising polyetherester resins, polyetherimide ester resins, alone or combined with polyester resins, and mixtures of any of them or of polyester resins alone with copolymers of alpha-olefins and vinyl esters of aliphatic monocarboxylic acids have improved elastomeric character. For example, addition of 50 and 30 parts by weight of a vinyl acetate-ethylene copolymer having a high content of units derived from vinyl acetate to a polyetherimide ester copolymer considerably improves compressibility, elasticity, low temperature impact strength, UV light resistance and chemical resistance. Articles shaped from such compositions show desirably lower hardness, improved dynamic fatigue properties, paintability, extrudability and injection moldability.

REFERENCES:
patent: 3580965 (1971-05-01), Brinkmann et al.
patent: 3937757 (1976-02-01), Seydl
patent: 4275180 (1981-06-01), Clarke
patent: 4322333 (1982-04-01), Kochanowski et al.
patent: 4639486 (1987-01-01), Liu
patent: 4739012 (1988-04-01), Hagman

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