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:
Dec. 07, 1993
Filed:
Jan. 06, 1992
Applicant:
Inventors:
Jonathan D Goetz, Gibsonia, PA (US);
Charles F Kahle, II, Allison Park, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430284 ; 430935 ; 2041817 ; 2041816 ; 522 91 ; 522 77 ;
Abstract
An electrodepositable photoresist composition for producing non-tacky films on an electroconductive substrate comprises an aqueous dispersion of a water-dispersible photosensitive ionic polymeric material and a polyalkylene oxide-modified polysiloxane sufficient to give slip and blocking properties that enables direct placement of a photomask on the resultant dehydrated film. The composition also preferably contains a nonionic unsaturated material and a photoinitiator.