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. 05, 2002
Filed:
Aug. 17, 2000
Applicant:
Inventors:
I-Hwa Midey Chang-Mateu, Ambler, PA (US);
James Michael Lipovsky, Langhorne, PA (US);
Dawn Marie McFadden, Yardley, PA (US);
Richard Shu-Hua Wu, Fort Washington, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/00 ;
U.S. Cl.
CPC ...
C08J 3/00 ;
Abstract
This invention relates to a process for stripping polymer reaction compositions. The process reduces gel in the polymer reaction composition by adjusting the pH of the polymer to from 7 to 11 prior to stripping and maintaining the adjusted pH during stripping, maintaining the temperature of the polymer at from 30° C. to 70° C. during stripping, utilizing a continuous stripping operation, or combinations thereof.