Patent · US Active

Process for preparation of polymer blends composed of polyoxymethylenes and of thermoplastic elastomers

US7906594B2 · kind B2 · utility

10Cited by

5References

17Claims

0Family size

Assignee

Ticona LLC · US

Inventors

Karl-Friedrich Muck · Wiesbaden, DE
Ernst Hofmann
Michael Hoffmockel · Niedernhausen, DE

Key dates

Filing date	Sep 13, 2006
Grant date	Mar 15, 2011
Priority date	—
Expiry date	Jul 11, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31942
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a process for preparation of polymer blends comprising at least one polyoxymethylene and at least one thermoplastic elastomer, where the thermoplastic elastomer is micropelletized by a pelletizing process and the pellets obtained in a) are dispersed in the polyoxymethylene matrix via melting of the components and mixing of these at low shear forces, and also to the use of micropelletized thermoplastic elastomers for preparation of polyoxymethylenes with low formaldehyde emission.

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