Patent · US Expired

Toughened polyoxymethylene and shaped articles produced therefrom

US5266633A · kind A · utility

1Cited by

2References

5Claims

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	Jun 17, 1991
Grant date	Nov 30, 1993
Priority date	—
Expiry date	Jun 17, 2011

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L55/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a mixture composed essentially 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, if appropriate, 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.