Molding composition from polyester blends

Details Molding composition from polyester blends Molding composition from polyester blends

Filed on

1979-04-02

Date issued

1980-08-26

Examiner

Ziegler, J.

Patent Class

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

SubClass

Synthetic resins

SubSubClass

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

Other Related Categories

525176, 525177, 525196, C08L 2316, C08L 6702

Type

Patent

Status

active

Patent number

042196280

Description

ABSTRACT:
Polyester composition characterized by a balance of physical properties more suitable for molding purposes than possible with the polyesters themselves, including blends of a polyester, poly(ethylene-co-propylene) rubber (EPR) and an ionomer of poly(ethylene-co-acrylic acid); the polyesters being selected from poly(tetramethylene terephthalate) (PBT), poly(1,4-cyclohexylenedimethylene terephthalate) (PCDT), and poly(1,4-cyclohexylenedimethylene terephthalate) (PCDT) modified with up to about 10 percent by weight of poly(oxyethylene) glycol having a molecular weight of about 500 to about 2000.

REFERENCES:
patent: 4013613 (1977-03-01), Abolins et al.
patent: 4122061 (1978-11-01), Holub et al.

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