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:
Apr. 26, 2016
Filed:
Jun. 04, 2010
Kunio Goto, Kobe, JP;
Takayuki Kamimura, Takarazuka, JP;
Masaru Takahashi, Narashino, JP;
Keishi Matsumoto, Takarazuka, JP;
Michihiko Iwamoto, Wakayama, JP;
Ryuichi Imai, Kainan, JP;
Stéphanie Raï, Marloing, FR;
Kunio Goto, Kobe, JP;
Takayuki Kamimura, Takarazuka, JP;
Masaru Takahashi, Narashino, JP;
Keishi Matsumoto, Takarazuka, JP;
Michihiko Iwamoto, Wakayama, JP;
Ryuichi Imai, Kainan, JP;
Stéphanie Raï, Marloing, FR;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
VALLOUREC MANNESMANN OIL & GAS FRANCE, Aulnoye-Aymeries, FR;
Abstract
In a threaded joint for pipes constituted by a pin and a box, each having a contact surface comprising a threaded portion and an unthreaded metal contact portion, the contact surface of the pin has a solid corrosion protective, preferably transparent coating based on a UV-curable resin and the contact surface of the box has a solid lubricating coating having plastic or viscoplastic rheological behavior which is preferably formed by the hot melt technique from a composition comprising a thermoplastic polymer, a wax, a metal soap, a corrosion inhibitor, a water-insoluble liquid resin, and a solid lubricant.