The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2019
Filed:
Sep. 16, 2015
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Daryoosh Beigzadeh, Midland, MI (US);
Thomas P. Clark, Midland, MI (US);
Paul Foley, Traverse City, MI (US);
Congcong Lu, Phoenixville, PA (US);
Peter Margl, Midland, MI (US);
Duane R. Romer, Midland, MI (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/00 (2006.01); C08G 71/04 (2006.01); C08L 33/06 (2006.01);
U.S. Cl.
CPC ...
C08G 73/00 (2013.01); C08G 71/04 (2013.01); C08L 33/066 (2013.01);
Abstract
The present invention provides carbamylation compositions of one or more urea compounds, one or more polyols and a monovalent transition metal or alkali metal catalyst (i), such as lithium ethylhexanoate, which compositions are substantially isocyanate free, enjoy reduced toxicity in comparison to tin catalysts, and which are useful in making polycarbamates which themselves provide compositions for making crosslinked polyurethanes.