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:
May. 09, 1995
Filed:
Nov. 18, 1993
Tze-Chiang Chung, State College, PA (US);
Frank J Chen, Edison, NJ (US);
Jon E Stanat, Westfield, NJ (US);
Alok Kumar, State College, PA (US);
Exxon Chemical Patents Inc., Linden, NJ (US);
Abstract
Immobilized Lewis acid catalysts comprising a polymer having at least one Lewis acid immobilized within the polymer structure, said polymer having the monomer units represented by the structural formula: ##STR1## where D is OR', NH.sub.2, NHR', OM' or OM'; E is at least one Lewis acid residue, R is an alkyl group or cycloalkyl group; R.sup.2 is a divalent hydrocarbyl group, R' is an alkyl, cycloalkyl, aryl or alkylaryl group, M' is an alkali metal and M' is an alkaline earth metal. The immobilized Lewis acid catalyst is useful in olefin polymerization and in alkylation or aromatic or isoparrafinic hydrocarbons with an olefin.