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. 04, 1989
Filed:
Jan. 27, 1987
Applicant:
Inventor:
Stanley B Mirviss, Stamford, CT (US);
Assignee:
Akzo America Inc., New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09F / ;
U.S. Cl.
CPC ...
2604055 ; 260408 ; 260413 ; 562602 ;
Abstract
An improved method for the synthesis of omega-unsaturated carboxylic acids is disclosed which precludes double bond migration or hydrogenation in order to prepare a high purity product necessary for high resolution in forming a resist by electron beam microlithography. This result can be obtained by a coupling reaction between a Grignard reagent of an unsaturated organochloride compound as defined in the application with a halo magnesium salt of a long chain organic acid.