Patent · US Active

Nitrogen-free and low-nitrogen crosslinking additives for cold-cure flexible slabstock foam having improved compression and aging properties

US12060451B2 · kind B2 · utility

0Cited by

10References

17Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Harald Modro · Gladbeck, DE
Kai-Oliver Feldmann · Essen, DE
Mladen Vidakovic · Duisburg, DE
Rüdiger Landers · Essen, DE
Daniela Hermann · Düsseldorf, DE

Key dates

Filing date	Jul 5, 2021
Grant date	Aug 13, 2024
Priority date	—
Expiry date	Nov 2, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2110/0083
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Process for producing cold-cure flexible slabstock PU foams by reaction of at least one polyol component and at least one isocyanate component in the presence of water and at least one catalyst and at least one crosslinker, wherein no nitrogen-containing crosslinkers having an expanded OH number above 1000 mg KOH/g are employed in a total amount >0.5 parts by weight, preferably >0.1 parts by weight, based on 100 parts by weight of polyol.

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