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:
Jul. 29, 2025
Filed:
Jun. 12, 2020
Celanese International Corporation, Irving, TX (US);
Antonios K. Doufas, Houston, TX (US);
Krishnan Anantha Narayana Iyer, Manvel, TX (US);
Khodabakhsh Irani, Houston, TX (US);
Eric P. Jourdain, Rhode Saint Genese, BE;
Celanese International Corporation, Irving, TX (US);
Abstract
Profiles or articles such as automotive seals (e.g., door seals and trunk seals) formed with foamed TPVs can comprise a thermoplastic polyolefin (e.g., polypropylene) and an ethylene-a-olefin-diene terpolymer, which imparts improved elastic properties. The sealing profile can comprise a foamed thermoplastic vulcanizate composition comprising a thermoplastic polyolefin and an ethylene-a-olefin-diene terpolymer elastomer, wherein the ethylene-a-olefin-diene terpolymer elastomer has a weight-average molecular weight Mw of from 200,000 g/mol to 3,000,000 g/mol, a Mw/Mn of 4.0 or lower, and a g'of 0.90 or greater, wherein the foamed thermoplastic vulcanizate composition has a specific gravity of 0.2 to 0.9.