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:
Oct. 23, 2012
Filed:
Nov. 10, 2010
Applicant:
Xinmin Chen, Taizhou, CN;
Inventor:
Xinmin Chen, Taizhou, CN;
Assignee:
Jiangsu Sinorgchem Technology Co., Ltd., Taizhou, Jiangsu Province, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 15/16 (2006.01); B01J 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A solid acid catalyst having a strong acid cation exchange resin having a cross-linking network structure and free aromatic sulfonic acids adsorbed in the network. The solid acid catalyst is prepared by treating a strong acid cation exchange resin with aromatic sulfonic acids in a solution. The catalyst is useful for synthesizing rubber antioxidant RD and other strong-acid catalyzed reactions.
Chen, Xinmin. (2012). Solid acid catalyst and method for preparing and using the same (U.S. Patent No. 8293137). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8293137
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