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:
Apr. 10, 1979
Filed:
Jul. 22, 1976
Applicant:
Inventor:
Michael J Oddi, Revere, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
96 9 / ; 9611 / ; 96 351 ; 260 25 ;
Abstract
Rosinous material is added to photoresist compositions to improve flexiblity, rheology and other physical properties. The rosinous material may be a rosin or a hydrogenated, esterified or neutralized derivative of a rosin. Particular advantages are achieved when the photoresists also contain a polyvinyl alkyl ether.