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:
Feb. 18, 1992
Filed:
Jun. 13, 1989
Applicant:
Inventor:
Songvit Setthachayanon, Elizabethtown, PA (US);
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F / ; G03F / ;
U.S. Cl.
CPC ...
430284 ; 430910 ; 522 95 ; 522 96 ; 522 92 ; 522 97 ;
Abstract
A UV sensitive coating composition is described which uses a polymer prepared from a condensation reaction of a diisocyanate, a hydroxy alkyl (di or tri) (meth)acrylate and a carboxylic acid polyol. Optionally, a polyol and/or a dicarboxylic acid polyol can also be included as reactants. The coating polymer, thus prepared, is combined with binders and crosslinkers to form a solder mask.