Patent · US Expired

Thermoplastic elastomer

US3997487A · kind A · utility

14Cited by

5References

12Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Richard Rees · Berlin, DE
Hans-Georg Reinhardt · Wilmington, US

Key dates

Filing date	Aug 20, 1974
Grant date	Dec 14, 1976
Priority date	—
Expiry date	Aug 20, 1994

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S526/938
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A very useful thermoplastic elastomer can be made by reacting, at an elevated temperature, (A) a suitable alpha-olefin copolymer elastomer (e.g., a copolymer of ethylene, propylene and a suitable diene) having carboxylic acid groups, and (B) a rosin salt of a divalent or monovalent metal.

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