Patent · US Expired

Polymer dispersions in polyester polyols

US7772321B2 · kind B2 · utility

0Cited by

8References

4Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

Hartmut Nefzger · Pulheim, DE
Erika Bauer · Höchst im Odenwald, DE
Erhard Michels · Neunburg vorm Wald, DE

Key dates

Filing date	Jul 22, 2004
Grant date	Aug 10, 2010
Priority date	—
Expiry date	Mar 2, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2410/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to polymer dispersions in polyester polyols, a process for producing them and their use for the production of polyurethanes, in particular microcellular polyurethanes. These polyester polyols have sulfur atoms and are free of olefinically unsaturated groups.

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