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:
Aug. 31, 1993
Filed:
Nov. 16, 1990
Applicant:
Inventors:
George Kvakovszky, Corpus Christi, TX (US);
James H Rea, Corpus Christi, TX (US);
Michael T Sheehan, Corpus Christi, TX (US);
Brad L Smith, Matthews, NC (US);
Assignee:
Hoechst Celanese Corporation, Somerville, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
558270 ; 568780 ;
Abstract
The present invention pertains to a method of forming a salt of 4-hydroxystyrene by reacting 4-acetoxystyrene with a suitable base in a suitable solvent system. Subsequently, or simultaneously, the salt of 4-hydroxystyrene can be reacted, preferably in situ, with di-tertiary-butyl-dicarbonate to form 4-tertiary-butoxycarbonyloxystyrene.
Kvakovszky, George. (1993). Method for preparing a salt of 4-hydroxystyrene and for preparing (U.S. Patent No. 5241098). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5241098
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile