Patent · US Active

Mixtures of polyether carbonate polyols and polyether polyols for producing polyurethane soft foams

US10106641B2 · kind B2 · utility

4Cited by

12References

15Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Bert Klesczewski · Neunburg vorm Wald, DE
Kai Laemmerhold · Aachen, DE
Jörg Hofmann · Krefeld, DE

Key dates

Filing date	Nov 24, 2014
Grant date	Oct 23, 2018
Priority date	—
Expiry date	Nov 24, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2375/08
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a method for producing polyurethane soft foam by reacting an isocyanate component with a component which is reactive towards isocyanates. The component which is reactive towards isocyanates comprises a mixture of at least one polyether carbonate polyol and a polyether polyol as the constituents. In the component which is reactive towards isocyanates, the total proportion of polyether carbonate polyols is =20 wt. % to =80 wt. % and the total proportion of polyether polyol is =20 wt. % to =80 wt. %, based on the total weight of the provided polyols. The invention further relates to a polyurethane soft foam produced using said method.

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