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. 06, 1993
Filed:
Sep. 19, 1991
Applicant:
Inventors:
Gary V Grosclaude, Winsted, CT (US);
Andrew G Bachmann, Harwinton, CT (US);
Assignee:
Dymax Corporation, Torrington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ; C08K / ; B05D / ;
U.S. Cl.
CPC ...
430270 ; 430281 ; 430283 ; 522 83 ; 522151 ; 522152 ; 521 92 ; 521123 ; 427510 ; 427508 ; 427519 ; 427520 ; 427 96 ; 427 97 ;
Abstract
A water-soluble coating or other deposit is produced from a formulation that is comprised of a curable liquid substance and a dispersed particulate effervescing agent. The formulation is particularly useful as a solder resist in the manufacture of PCBs, and the preferred composition contains n-vinyl-2-pyrrolidone, N,N-dimethylacrylamide, and polyvinylpyrrolidone.