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:
Sep. 17, 2024
Filed:
Mar. 12, 2024
Joseph P. Kennedy, Akron, OH (US);
Turgut Nugay, Sariyer-Istanbul, TR;
Joseph P. Kennedy, Akron, OH (US);
Turgut Nugay, Sariyer-Istanbul, TR;
Abstract
A multiply-crosslinked polyisobutylene-based polyurethane includes a plurality of multi-telechelic polyisobutylene-based segments and a plurality of urethane segments having a plurality of chain extender-based segments therein. Each end of one of the plurality of urethane segments is linked either to an end of one of the plurality of multi-telechelic polyisobutylene-based segments, or to an end of one of the plurality of chain extender-based segments. Also, one or more of the plurality of urethane segments are physically crosslinked to one or more other of the plurality of urethane segments. Notably, the plurality of multi-telechelic polyisobutylene-based segments constitute at least 70 weight percent of the polyisobutylene-based polyurethane and the plurality of urethane segments, including the plurality of chain extender-based segments therein, constitute up to 30 weight percent of the polyisobutylene-based polyurethane.