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. 06, 1983
Filed:
May. 24, 1982
Applicant:
Inventors:
Francisco M Benitez, Baton Rouge, LA (US);
Michael F English, Baton Rouge, LA (US);
Assignee:
Exxon Research & Engineering Co., Florham Park, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526237 ; 526 77 ; 526290 ;
Abstract
In a process in which a C.sub.5 -C.sub.12 feedstock has been distilled from a cracked petroleum fraction and polymerized with the help of a Friedel-Crafts catalyst to produce a petroleum resin, the C.sub.5 -C.sub.12 feedstock is first dried to a moisture content of less than about 10 ppm water and then contacted with anhydrous hydrogen halide, usually HCl, prior to polymerization.