Patent · US Active

Method of making hydroxymethylphosphonate, polyurethane foam-forming compositions, polyurethane foam and articles made therefrom

US9593220B2 · kind B2 · utility

0Cited by

20References

17Claims

0Family size

Assignee

ICL-IP America, Inc. · US

Inventors

Jeffrey Stowell · Wingdale, US
Gerardo Francisco · Orangeburg, US
Edward D. Weil · Hastings-on-Hudson, US

Key dates

Filing date	Aug 9, 2016
Grant date	Mar 14, 2017
Priority date	—
Expiry date	Aug 9, 2036

Classification

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

Abstract

There is provided herein a method of making hydroxymethylphosphonate comprising reacting paraformaldehyde, at least one dialkyl phosphite and at least one trialkyl phosphite, in the presence of at least one amine catalyst.

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