AGENT FOR FORMING SOLID LUBRICATING COATING FILM, OIL COUNTRY TUBULAR GOODS, AND THREADED JOINT FOR OIL COUNTRY TUBULAR GOODS
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United States of America
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Issued Date -
Nov 21, 2024
app pub date -
May 24, 2022
filing date -
May 24, 2022
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Abstract
An agent for forming a solid lubricating coating film on a thread portion of oil country tubular goods, in which a binder resin contains a prepolymer and a curing agent, the prepolymer is formed of one or more epoxy resins, 70 parts by weight or more of the prepolymer is contained with respect to 100 parts by weight of the binder resin, the epoxy resin constituting the prepolymer has an epoxy equivalent of 100 or more and 500 or less, the solid lubricant contains boron nitride (BN) in an amount of 80% by weight or more, BN has an average particle size of 10 μm or less, and a total weight of the solid lubricant is 0.1 times or more and two times or less a total weight of the binder resin.
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