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:
Mar. 03, 1998
Filed:
May. 24, 1995
Applicant:
Inventors:
Cruise K Jones, Houston, TX (US);
David B Acker, Woodlands, TX (US);
Dennis A Williams, Houston, TX (US);
Robert D Lundberg, Williamsburg, TX (US);
Vijay Swarup, Houston, TX (US);
Assignee:
Nalco/Exxon Energy Chemicals, L.P., Sugar Land, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525344 ; 5253318 ;
Abstract
EPDM elastomer is sulfonated and neutralized by a bulk process involving mechanical mixing at low temperatures in the sulfonating and neutralizing steps. The EPDM is discharged from the mixing process as finely divided particles having a low bulk density.