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:
Jan. 30, 2024
Filed:
Nov. 25, 2019
The University of Southern Mississippi, Hattiesburg, MS (US);
Robson F. Storey, Hattiesburg, MS (US);
Alan Ekin, Coraopolis, PA (US);
R. Hunter Cooke, III, Atlanta, GA (US);
Jie Wu, Hattiesburg, MS (US);
The University of Southern Mississippi, Hattiesburg, MS (US);
Abstract
An alternative polyurethane composition is provided which comprises a reaction product of an azidated polyol and a poly(alkynyl carbamate) prepolymer, wherein reaction occurs at a temperature of from 20° C. to 200° C., optionally in the presence of a catalyst, wherein the poly(alkynyl carbamate) prepolymer comprises a reaction product of stoichiometric equivalents of a polyisocyanate and a component comprising 1-100% of an alkynol-ether of the formula (I): HC≡C—R—OH (I), wherein R is a linear or branched ether chain having from 1 to 15 atoms, and wherein the remainder of the hydroxyl-functional component comprises a first alkynol. The inclusion of an alkynol-ether reduces the viscosity of the composition without compromising its performance. The inventive alternative polyurethane compositions may find use in providing coatings, adhesives, sealants, films, elastomers, castings, foams, and composites.