Patent · US Expired

Polybutylene terephthalate molding composition with high cold impact strength and amenable to thermoplastic processing

US4521554A · kind A · utility

1Cited by

7References

14Claims

0Family size

Assignee

Chemische Werke Huels Aktiengesellschaft · US

Inventors

Michael Droscher · Dorsten, DE
Christian Gerth · Detmold, DE
Klaus Burzin · Marl, DE

Key dates

Filing date	Feb 22, 1984
Grant date	Jun 4, 1985
Priority date	—
Expiry date	Feb 22, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L67/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A molding composition having cold impact strength and amenable to thermoplastic processing, comprises PA1 (A) 66-95% by weight of polybutylene terephthalate with a viscosity number (J) of 70 to 240 cc/g and PA1 (B) 34-5% by weight of a reaction product of PA2 1. 99-75% by weight of an ethylene/.alpha.-olefin/diene terpolymer having a Mooney viscosity in the range from 30 to 130 and PA2 2. 1-25% by weight of bicyclo[2,2,2]-2,3;5,6-dibenzooctadiene-(2,5)-dicarboxylic acid-(7,8)-anhydride.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.