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:
Jun. 19, 1984
Filed:
May. 21, 1982
Applicant:
Inventors:
George Pieslak, Menlo Park, CA (US);
Elena C Fritchle, Palo Alto, CA (US);
Assignee:
Raychem Corporation, Menlo Park, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ; F16L / ; B32B / ;
U.S. Cl.
CPC ...
204147 ; 138143 ; 138145 ; 138146 ; 138D / ; 174D / ; 428 36 ; 428349 ; 428355 ; 428523 ;
Abstract
An adhesive composition comprises an adhesive component and a hydrazine derivative. The adhesive composition has improved resistance to cathodic disbonding when used to adhere a protective coating, such as a polymeric layer, to the surface of a metal substrate. Cathodic disbonding is observed when an electric current is impressed through the substrate to reduce corrosion by inhibiting loss of metal ions from the substrate.