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:
Feb. 25, 1992
Filed:
Aug. 31, 1989
Applicant:
Inventor:
Chun S Wong, Kingston, CA;
Assignee:
Du Pont Canada Inc., Mississauga, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428461 ; 106 1427 ; 106 1441 ; 106 1444 ; 427327 ; 427409 ; 4273981 ; 428516 ; 524439 ;
Abstract
Corrosion of metals and cathodic disbondment of coated metals, especially steel, iron and aluminum, are reduced by coating the metals with a composition of 1-70% by weight of a modified polyolefin and 30-99% by weight of metallic zinc. The modified polyolefin is obtained by grafting a polyolefin with an ethylenically unsaturated aliphatic carboxylic acid or derivative thereof, the polyolefin being a homopolymer or copolymer of a C.sub.2 -C.sub.12 hydrocarbon alpha-olefin.