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. 07, 1987
Filed:
Sep. 29, 1986
Applicant:
Inventors:
Jimmy D Elmore, Louisville, KY (US);
Elizabeth S Goff, Louisville, KY (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525378 ; 5253295 ; 525383 ;
Abstract
Polymers of 4-acetoxystyrene are hydrolyzed to polymers of p-vinylphenol with ammonium hydroxide followed by sparging with carbon dioxide. Such polymers are useful in photoresist and as protective coatings for metal.