Patent · US Expired

Process for improving the quality of PPE-containing moulding materials

US5075391A · kind A · utility

0Cited by

6References

5Claims

0Family size

Assignee

Huls Aktiengesellschaft · DE

Inventors

Wilfried Ribbing · Dorsten, DE
Martin Bartmann · Recklinghausen, DE

Key dates

Filing date	Feb 21, 1990
Grant date	Dec 24, 1991
Priority date	—
Expiry date	Feb 21, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S525/905
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for the preparation of PPE and/or PPE-containing moulding materials. Styrene or a styrene derivative is added to the organic PPE solution in order to improve the color quality.

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