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. 06, 1979
Filed:
Nov. 15, 1977
Applicant:
Inventors:
Jiro Satake, Amagasaki, JP;
Tetsuzo Arai, Amagasaki, JP;
Yoshifumi Miyamoto, Kobe, JP;
Hiroo Inoue, Nishinomiya, JP;
Assignee:
Sumitomo Kinzoku Kogyo Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138143 ; 138145 ; 138153 ; 138D / ; 138D / ;
Abstract
There are applied in layers on the surface of a metal pipe, a rapid hardening and cure type corrosion preventive material consisting essentially of isocyanate terminated polyurethane prepolymer, amine base hardener and petroleum resin, and a reinforcing material consisting of silica sand, blast furnace slag or the like. Thus there are provided a plurality of coatings or layers on the metal pipe, which are excellent in impact resisting and corrosion preventive properties.