03-03-2022 дата публикации
Номер: US20220064561A1
Принадлежит:
The composition according to the present disclosure is a composition for forming a lubricant coating layer on or above a threaded connection for pipes, and contains polyisobutylene, a metal soap, a wax and a basic metal salt of an aromatic organic acid. The threaded connection for pipes according to the present disclosure includes: a pin having a pin-side contact surface which includes a pin-side threaded portion; a box having a box-side contact surface which includes a box-side threaded portion; and a lubricant coating layer formed from the aforementioned composition as an outermost layer on or above at least one of the pin-side contact surface and the box-side contact surface. 116-. (canceled)17. A composition for forming a lubricant coating layer on or above a threaded connection for pipes , the composition comprising:polyisobutylene,a metal soap,a wax, anda basic metal salt of an aromatic organic acid.18. The composition according to claim 17 , wherein:when a total amount of non-volatile components in the composition is taken as 100 mass %, the composition comprises:the polyisobutylene: 5 to 30 mass %,the metal soap: 2 to 30 mass %,the wax: 2 to 30 mass %, andthe basic metal salt of an aromatic organic acid: 10 to 70 mass %.19. The composition according to claim 17 , wherein:the composition further comprises:a lubricant powder.20. The composition according to claim 19 , wherein:when a total amount of non-volatile components in the composition is taken as 100 mass %, the composition comprises:the lubricant powder: 0.5 to 20 mass %.21. The composition according to claim 19 , wherein:the lubricant powder is one or more types selected from the group consisting of graphite and polytetrafluoroethylene.22. The composition according to claim 17 , wherein:the composition further comprises:a volatile organic solvent.23. A threaded connection for pipes claim 17 , comprising:a pin having a pin-side contact surface including a pin-side threaded portion;a box having a box- ...
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