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:
Jul. 08, 2008
Filed:
Jun. 21, 2005
Applicants:
Yoon Tae Kwak, Woodcliff Lake, NJ (US);
Paul D. Taylor, Dublin, OH (US);
William J. Swatos, Paducah, KY (US);
Inventors:
Yoon Tae Kwak, Woodcliff Lake, NJ (US);
Paul D. Taylor, Dublin, OH (US);
William J. Swatos, Paducah, KY (US);
Assignee:
ISP Investments Inc., Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F 138/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for making high specific viscosity copolymers of maleic anhydride and an alkyl vinyl either having as specific viscosity of at least 7, preferably 10-50, are made by copolymerizing maleic anhydride and an alkly vinyl ether monomers in the presence of added acetylene.