Patent · US Expired

Toughened polyoxymethylene and shaped articles produced therefrom

US5047471A · kind A · utility

12Cited by

2References

16Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Karlheinz Burg
Harald Cherdron · Niedernhausen, DE
Friedrich Kloos · Mainz, DE
Helmut Schlaf · Kelkheim, DE

Key dates

Filing date	May 20, 1988
Grant date	Sep 10, 1991
Priority date	—
Expiry date	May 20, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S525/902
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a mixture composed of polyoxymethylene (component A), a rubber-elastic graft copolymer in which the particles have been formed from a rubber-elastic, single-phase core based on polydiene and a hard graft shell (component B) and a polymeric third component (component C). The invention also relates to a three-component mixture of the components A, B' and C, the core, in the case of B' being preponderantly or entirely composed of poly(meth)acrylic acid ester or silicone rubber instead of polydiene. The shaped articles produced from these mixtures are particularly distinguished by good low-temperature impact strength.

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