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. 03, 1991
Filed:
May. 18, 1989
Applicant:
Inventors:
Assignee:
Centro Sviluppo Materiale SpA, Rome, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428336 ; 428457 ; 252396 ; 427410 ;
Abstract
The present invention provides a thin continuous organic coating on metals, particularly on continuous metal bodies, so that the product obtained is weldable and resistant to corrosion as well as to the effect of strongly acid and strongly alkaline baths, while being punchable and paintable. The coating according to the invention comprises epoxy resins characterized by ultimate elongation higher than 10%, electrical insulation resistance less than 2000 Ohm/cm.sup.2, able to produce a continuous coating on the metal substrate with micro-roughnesses (Ra) of about 3 .mu.m--Ra being average roughness--and capable of withstanding for thirty minutes liquids with pH between 2 and 12.5.