Polyester compositions having high impact strength

Details Polyester compositions having high impact strength Polyester compositions having high impact strength

1986-12-22

1988-06-28

Short, Patricia

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

Synthetic resins

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

525 68, C08L 6702

Patent

active

047539860

ABSTRACT:
The impact strengths of linear polyesters such as poly(ethylene terephthalate) and poly(1,4-butylene terephthalate) are improved, particularly at low temperatures, by the incorporation therein of a core-shell impact modifier. The core therein is a crosslinked elastomeric polymer of at least one conjugated diene such as butadiene and has a volume average particle size in the range of about 90-700 nanometers. The grafted shell is a copolymer of at least one vinyl aromatic compound such as styrene and at least one polymerizable nitrile such as acrylonitrile.

REFERENCES:
patent: 3600465 (1971-08-01), Knapp
patent: 4034013 (1977-07-01), Lane
patent: 4180494 (1979-12-01), Fromuth et al.
patent: 4292233 (1981-09-01), Binsack
patent: 4417026 (1983-11-01), Lindner et al.
patent: 4535124 (1985-08-01), Binsack

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