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:
Dec. 01, 2015
Filed:
Jan. 25, 2011
Weiqing Weng, Houston, TX (US);
Michael B. Rodgers, Seabrook, TX (US);
Molly W. Johnston, Baytown, TX (US);
John P. Soisson, Houston, TX (US);
Robert N. Webb, Kingwood, TX (US);
Weiqing Weng, Houston, TX (US);
Michael B. Rodgers, Seabrook, TX (US);
Molly W. Johnston, Baytown, TX (US);
John P. Soisson, Houston, TX (US);
Robert N. Webb, Kingwood, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
An elastomeric nanocomposite contains: (a) at least one elastomer comprising units derived from isoolefins having from 4 to 7 carbon atoms; (b) at least 10 phr of a carbon black; and (c) at least 1 phr of a nanoclay; wherein when the nanocomposite is used in an article, the article has a gas permeation coefficient of 80.0 cc*mm/[m-day] at 40° C. The carbon black may be graphitized to reduce interactions between the carbon black and the nanoclays. The elastomeric nanocomposite may, with or without the use of the graphitized carbon black, may calendared or extruded in such a manner as to orient the nanoclay platelets within the composition such that the oriented nanoclay elastomer nanocomposite has an orientation parameter of greater than 0.15.