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:
Jun. 30, 2026
Filed:
Apr. 21, 2023
Kraton Corporation, Houston, TX (US);
Jiaqi Yan, Houston, TX (US);
John Flood, Houston, TX (US);
Kraton Corporation, The Woodlands, TX (US);
Abstract
A hydrogenated styrenic block copolymer (HSBC) is disclosed represented by at least one formula selected from S-EP-EB, (S-EP-EB)X, and S-EP-EB-EP-S, wherein n is from 2 to 30 and X is a residue of a coupling agent. Prior to hydrogenation, each block S is a polymer block of a vinyl aromatic monomer, each block EP is a polyisoprene block, and each block EB is a polybutadiene block. The HSBC has a polystyrene content (PSC) of 5 to 20 wt. %, and a peak molecular weight (M) of 45 to 300 kg/mol. A thermoplastic composition is disclosed containing the HSBC and a polyolefin. The thermoplastic composition shows improved impact performance and toughness.