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, 1986
Filed:
Apr. 16, 1984
Applicant:
Inventors:
Nobuyoshi Hosaka, Minori, JP;
Tasuku Shimizu, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428328 ; 428334 ; 428335 ; 428355 ; 428421 ; 4284256 ; 428433 ; 428443 ; 428446 ; 428451 ; 428471 ; 428480 ; 428493 ; 428494 ; 428521 ; 428523 ; 428524 ; 428906 ; 428926 ; 525433 ;
Abstract
An anti-corrosive sealing tape comprising a first layer which exhibits conductivity and is prepared by adding fine zinc powder, magnesium oxide and graphite powder to a rubber base; e.g., a butyl rubber containing curing agents and a second layer which plays a role of reinforcing the first layer with imparting waterproofing or thermal insulating properties thereto. This tape will protect metal pipes or structural members against corrosion when wrapped around them.