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:
Mar. 12, 1985
Filed:
Jul. 22, 1982
Applicant:
Inventor:
Edward J Leech, Oyster Bay, NY (US);
Assignee:
Kollmorgen Technologies Corporation, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
523427 ; 428901 ; 523428 ; 523434 ; 523437 ; 523438 ; 525113 ; 525504 ; 525476 ; 525523 ; 525524 ;
Abstract
A resinous protective coating useful in the manufacture of printed circuit boards with circuit patterns having a resolution of at least 0.25 mm lines and spaces thereon. The protective coating comprises resins dissolved in solvents, wherein the coating upon being subjected to heat goes from a high viscosity solution to a gel and then to a solid or from a soft 'gel-like' state into a solid. The protective coating is resistant to copper electroplating baths, adheres to insulating substrates, adhesive coated base materials as well as metallic substrates and is capable of withstanding the thermal shock of dip soldering.