Patent · US Expired

Reinforced polyurethane thermoplastic chemical materials and processes for their preparation

US4500671A · kind A · utility

15Cited by

7References

20Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Wilhelm Goyert · Leverkusen, DE
Wolfgang Grimm · Bremen, DE
Albert Awater · Odenthal, DE
Hans Wagner · Dormagen, DE
Bruno Kruger · Leverkusen, DE

Key dates

Filing date	Jun 1, 1984
Grant date	Feb 19, 1985
Priority date	—
Expiry date	Jun 1, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L33/20
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The instant invention is directed to thermoplastic chemical material comprising: PA1 (A) from 60 to 97%, by weight, based on (A)+(B), of a thermoplastic polyurethane; and PA1 (B) from 40 to 3%, by weight, based on (A)+(B), of a fibrous reinforcing material; and PA1 (C) from 36 to 3 parts, by weight, based on 100 parts of (A)+(B), of a polar polymer. The instant invention is also directed to a process for the production of the thermoplastic chemical materials.

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