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, 2000
Filed:
May. 11, 1995
Applicant:
Inventors:
Wendell A Ehrhart, Red Lion, PA (US);
David A Smith, York, PA (US);
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; C08J / ; C08J / ; C08L / ;
U.S. Cl.
CPC ...
4302811 ; 4302881 ; 430910 ; 522114 ; 522121 ; 522126 ; 524 96 ; 524247 ; 524249 ; 524251 ;
Abstract
Photopolymerizable plastisol and organosol photoresist and solder mask coating compositions are described herein. These compositions include an ethylenically unsaturated photopolymerizable liquid plasticizer; a particulate, thermoplastic resin is dispersed in the plasticizer, the said resin having a midpoint Tg greater than 110.degree. C. and an acid number greater than 110; a tertiary amine stabilizer; and a photoinitiator. The organosol includes a diluent along with the other ingredients.