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. 02, 2007
Filed:
Dec. 17, 2003
Sung-hwan Cho, Daejeon, KR;
Sun-woong Kim, Daejeon, KR;
Jun-hee Lee, Daejeon, KR;
Oh-kwun Son, Daejeon, KR;
Byung-ho Lim, Daejeon, KR;
Sung-Hwan Cho, Daejeon, KR;
Sun-Woong Kim, Daejeon, KR;
Jun-Hee Lee, Daejeon, KR;
Oh-Kwun Son, Daejeon, KR;
Byung-Ho Lim, Daejeon, KR;
Samyang Corporation, Seoul, KR;
Abstract
The present invention relates to a thermoplastic elastomer resin which has good melt viscosity, melt tension, and thermal resistance, wherein it is prepared by introducing a chain extender and a stabilizer for hydrolysis to a thermoplastic elastomer resin produced through melt polymerization in the presence of hydroxy carboxylic acid compound and subjecting the mixture to reactive extrusion to increase the molecular weight and crosslinking degree of the elastomer resin. The thermoplastic elastomer resin according to the present invention has good properties for automobile parts, particularly constant velocity joint boots and bellows.