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. 10, 2013
Filed:
Dec. 21, 2009
Jan W. Van Egmond, Charleston, WV (US);
Roger B. Painter, Rosharon, TX (US);
Zuzanna Kulik, South Charleston, WV (US);
Joel D. Wieliczko, Channahon, IL (US);
Jan W. Van Egmond, Charleston, WV (US);
Roger B. Painter, Rosharon, TX (US);
Zuzanna Kulik, South Charleston, WV (US);
Joel D. Wieliczko, Channahon, IL (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A process for producing a heterophasic copolymer is provided. The process includes introducing an antifoulant to a second polymerization reactor which operates in series with a first polymerization reactor. The antifoulant may be a multicomponent antifoulant and/or a coating agent. Provision of either antifoulant enables the production of a heterophasic copolymer with an Fc value from about 10% to about 50% by inhibiting reactor fouling during polymerization.