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:
Dec. 29, 2015
Filed:
Nov. 16, 2011
Rajat Duggal, Pearland, TX (US);
Nathan Wilmot, Missouri City, TX (US);
Richard Keaton, Pearland, TX (US);
Alan K. Schrock, Pensacola Beach, FL (US);
Rajat Duggal, Pearland, TX (US);
Nathan Wilmot, Missouri City, TX (US);
Richard Keaton, Pearland, TX (US);
Alan K. Schrock, Pensacola Beach, FL (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Polyurethane elastomers are formed by curing a reaction mixture containing at least one polyisocyanate at least one polyol, an aliphatic diol chain extender and a small amount of a secondary amino compound that may have none or one or more hydroxyl groups. The reaction is catalyzed with a metal catalyst. In certain embodiments, the catalyst is an organozirconium, organotitanium or tertiary amine-based catalyst. The presence of the secondary amine compound in those cases provides for a good surface appearance and good physical properties.