Patent · US Active

Compositions and use of cis-1,1,1,4,4,4-hexafluoro-2-butene foam-forming composition in the preparation of polyisocyanate-based forms

US8299137B2 · kind B2 · utility

6Cited by

23References

6Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Gary Loh · Newark, US
Joseph Anthony Creazzo · Wilmington, US

Key dates

Filing date	Nov 25, 2008
Grant date	Oct 30, 2012
Priority date	—
Expiry date	Dec 17, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2375/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A foam-forming composition is disclosed which includes both cis-1,1,1,4,4,4-hexafluoro-2-butene and a poorly compatible active hydrogen-containing compound having two or more active hydrogens. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of effective amounts of the foam-forming composition and a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.

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