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:
Feb. 03, 2009
Filed:
May. 29, 2002
Anthony Jay Dias, Houston, TX (US);
Andy Haishung Tsou, Houston, TX (US);
David Yen-lung Chung, Bellaire, TX (US);
Weiqing Weng, Houston, TX (US);
Caiguo Gong, Pearland, TX (US);
Anthony Jay Dias, Houston, TX (US);
Andy Haishung Tsou, Houston, TX (US);
David Yen-Lung Chung, Bellaire, TX (US);
Weiqing Weng, Houston, TX (US);
Caiguo Gong, Pearland, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
The present invention is a blend of an halogenated elastomer and a clay, desirably an exfoliated clay, to form a nanocomposite suitable for an air barrier. In one embodiment, the halogenated elastomer is a polymer comprising Cto Cisoolefin derived units, a para-methylstyrene derived units, and para-(halomethylstyrene) derived units. In another embodiment, the halogenated elastomer is a butyl-type rubber. The clay may or may not have an additional exfoliating treatment present prior to blending with the interpolymer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an innerliner or innertube.