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:
Jun. 09, 1992
Filed:
Apr. 18, 1990
Applicant:
Inventor:
Balaram Gupta, Somerset City, NJ (US);
Assignee:
Hoechst Celanese Corp., Somerville, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525242 ; 525301 ; 525308 ; 525309 ;
Abstract
Ether derivatives of polymers of p-hydroxystyrene are made by reacting the polymer through Michael addition with an ethylenically unsaturated compound which contains an electron withdrawing group on the carbon atom alpha to the unsaturation.
Gupta, Balaram. (1992). Process for preparing ether derivatives of polymers of p-hydroxystyrene (U.S. Patent No. 5120793). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5120793
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile