Patent · US Expired

Low odor amine catalysts for polyurethane flexible slabstock foams based on polyester polyols

US5591780A · kind A · utility

14Cited by

12References

12Claims

0Family size

Assignee

AIR PRODUCTS AND CHEMICALS, INC. · US

Inventors

Krunoslav Muha · Henstedt-Ulzburg, DE
Steven Hulme · Macclesfield, GB
Mark E. Harakal · Hachenburg, DE

Key dates

Filing date	Apr 17, 1996
Grant date	Jan 7, 1997
Priority date	—
Expiry date	Apr 17, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2110/0008
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A method for preparing a polyester flexible slabstock polyurethane foam which comprises reacting an organic polyisocyanate and a polyester polyol in the presence of a blowing agent, optionally a cell stabilizer and a catalyst composition consisting essentially of N-methylimidazole or 1,2-dimethylimidazole, or both.

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