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:
Feb. 19, 1980
Filed:
Feb. 21, 1979
Edward J Thompson, Watertown, CT (US);
The Upjohn Company, Kalamazoo, MI (US);
Abstract
Novel cellular and non-cellular polymers are provided in which the major recurring polymer unit is isocyanurate which polymer comprises the reaction product obtained by bringing together an aromatic polyisocyanate, a trimerization catalyst, and a minor amount of a carbamate modifier. The use of the carbamate modifier allows for the presence of high catalyst levels without shortening the reaction initiation period. At the same time, the resulting cure is very rapid and the extent of cure much deeper than has heretofore been attainable.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile