Patent · US Expired

Method for the manufacture of a thermoplastic molding material containing polyphenylene ether

US4746482A · kind A · utility

12Cited by

6References

13Claims

0Family size

Assignee

Huls Aktiengesellschaft · DE

Inventors

Wilfried Ribbing · Dorsten, DE
Hans Jadamus · Marl, DE
Hans-Eberhard von Portatius · Dorsten, DE

Key dates

Filing date	Dec 29, 1986
Grant date	May 24, 1988
Priority date	—
Expiry date	Dec 29, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S525/905
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a method for the manufacture of molding materials containing polyphenylene ether (PPE) and to the materials obtained according to this method. Molten PPE containing at least 0.1% volatile components is degasified until it reaches a residual content of volatile components of less than 500 ppm. Subsequently, additional molten polymers and/or additives are added to this molten mass at the lowest possible temperature and both components are mixed.

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