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:
May. 27, 2014
Filed:
Sep. 15, 2005
Jozef Verborgt, Tarpon Springs, FL (US);
Arthur Webb, Alexandria, VA (US);
Jozef Verborgt, Tarpon Springs, FL (US);
Arthur Webb, Alexandria, VA (US);
The United States of America, as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A method of making a polymer by providing an imine and reacting the imine with a polyisocyanate in the presence of a hydroxyl group. The imine is a polyaldimine, hydroxyaldimine, polyketimine, or hydroxyketimines. The polymer has urea linkages formed from the imine and polyisocyanate and urethane linkages formed from the hydroxyl group and the polyisocyanate. The polymer has at least as many urea linkages as urethane linkages. A polymer having urea units and urethane units having a molar ratio of at least about 2:1. A polymer comprising a urea-urethane repeat unit.