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.
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
C10M 103/00 - Lubricating compositions characterised by the base-material being an inorganic material
C10M 107/32 - Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
C10N 50/02 - Form in which the lubricant is applied to the material being lubricated dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
F16L 15/04 - Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
2.
AGENT, OIL COUNTRY TUBULAR GOODS, AND THREADED JOINT FOR OIL COUNTRY TUBULAR GOODS
An agent for forming a solid lubricating coating film on a tightening surface of a thread portion, in which a solid lubricant is dispersed in a binder resin as a matrix component, a main component of the solid lubricant is melamine cyanurate, and an average particle diameter of the melamine cyanurate is 0.1 μm or more and 10.0 μm or less, the binder resin contains an alkyd resin and nitrocellulose, and the alkyd resin and nitrocellulose are contained in an amount of 85 wt % or more of the total binder resin component weight, and a total weight of the solid lubricant is 10 parts by weight or more and 100 parts by weight or less based on 100 parts by weight of a total weight of the binder resin.
C10M 107/32 - Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
C10M 107/40 - Lubricating compositions characterised by the base-material being a macromolecular compound containing nitrogen
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
C10M 129/52 - Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring polycarboxylic
C10N 50/08 - Form in which the lubricant is applied to the material being lubricated solid
3.
AGENT FOR FORMING SOLID LUBRICATING COATING FILM, OIL COUNTRY TUBULAR GOODS, THREADED JOINT FOR OIL COUNTRY TUBULAR GOODS, AND METHOD FOR MANUFACTURING OIL COUNTRY TUBULAR GOODS
A solid lubricating coating film capable of imparting favorable lubricity and corrosion resistance to a connection for oil country tubular goods. Two or more solid lubricants are dispersed in a binder resin. Graphite is contained in an amount of 50% or more and 90% or less of a total weight of the solid lubricants, and the graphite has a scaly shape and an average particle diameter of 10.0 μm or less. A solid lubricant made of one or more materials selected from BN, mica, talc, MCA, MoS2, PTFE, PFA, and FEP is further contained as other solid lubricants of the two or more types of solid lubricants. The binder resin contains a PEEK resin having an average particle diameter of 20 μm or less as a main component, and the PEEK resin is contained in an amount of 70% or more of a total weight of the binder resin.
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
C10M 107/32 - Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
C10M 107/38 - Lubricating compositions characterised by the base-material being a macromolecular compound containing halogen
C10M 177/00 - Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
C10N 20/00 - Specified physical properties of component of lubricating compositions
C10N 50/02 - Form in which the lubricant is applied to the material being lubricated dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
A solid lubricating coating film is used to realize galling resistance equal to or higher than a method using a dope compound regarding lubrication characteristics during make-up/break-out of oil country tubular goods. A threaded joint for oil country tubular goods includes a box having a thread and a pin having a male thread. A lubricating coating film including a solid lubricating coating film forms on a tightening surface of a thread portion of at least one component of the box and pin, the solid lubricating coating film is formed by dispersing a solid lubricant in a binder resin, 90 wt % or more of the binder resin is a polyamideimide resin, an average molecular weight of the polyamideimide resin is 20,000 or more and 40,000 or less, 80 wt % or more of the solid lubricant is polytetrafluoroethylene (PTFE), and an average molecular weight of the PTFE is 30,000 or less.
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
C10M 105/24 - Carboxylic acids or their salts having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen
C10M 107/38 - Lubricating compositions characterised by the base-material being a macromolecular compound containing halogen
C10M 107/44 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
C10N 50/00 - Form in which the lubricant is applied to the material being lubricated
F16B 33/06 - Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure
F16L 15/00 - Screw-threaded joints; Forms of screw-threads for such joints
5.
CHEMICAL AGENT FOR FORMING SOLID LUBRICATION COATING, CHEMICAL AGENT PRODUCTION METHOD, CHEMICAL AGENT APPLICATION METHOD, OIL WELL PIPE, AND OIL WELL PIPE SCREW JOINT
The present invention provides a chemical agent which is environmentally friendly and a solid lubrication coating. Provided is a chemical agent for forming a solid lubrication coating on a metal surface. The main components are a solid lubricant, a binder resin, and a solvent. The solvent has water as the main component thereof, and a lower alcohol with a carbon number of three or less is added as an additive to the water. The volume of the additive is 0.5-45 with respect to a volume of 100 of the water in the solvent. Not less than 95% of the volume of the solvent is constituted by water and the additive. At least a metal soap is contained as the solid lubricant. The metal soap component is not less than 95% of the total combined weight of the metal soap and an alkali soap component. The particle size of the metal soap does not exceed the film thickness of the solid lubrication coating. The binder resin is constituted by a water-soluble or water-dispersible polymer and a copolymer. The binder resin contains a copolymer and a polymer having an acrylate or methacrylate structure in an amount of not less than 90% of the total weight of the binder resin.
C09D 133/00 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, a; Coating compositions based on derivatives of such polymers
C10M 129/40 - Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
C10M 129/44 - Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms containing hydroxy groups
F16L 15/04 - Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
C10N 30/06 - Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
C10N 40/00 - Specified use or application for which the lubricating composition is intended
C10N 50/02 - Form in which the lubricant is applied to the material being lubricated dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
6.
COATING DRUG FOR FORMING SOLID LUBRICATING FILM, PRODUCTION METHOD FOR SAID COATING DRUG, OIL WELL PIPE REPAIRING METHOD, LUBRICATION IMPROVING METHOD FOR OIL WELL PIPE, AND OIL WELL PIPE
Provided is a drug which is environmentally friendly and durable for actual use in a well. The drug is for forming a solid lubricating film by being applied to a metal surface. The drug contains a solid lubricant, a binder resin, and a solvent as main components, wherein: the solvent contains water as a main component and is obtained by adding, as an additive, a lower alcohol having at most 3 carbon atoms to water; the volume of the additive is 0.5-10 with respect to 100 of the volume of the water; at least 95% of the volume of the solvent is composed of the water and the additive; the solid lubricant contains at least 95% of graphite and metallic soap and at most 1% of alkali soap, with respect to the total weight of solid lubricating components; the amount of the graphite is 0.5-5% with respect to the entire amount of the solid lubricant, in terms of weight ratio; the binder resin is a water-soluble or water-dispersible polymer; and the polymer is a polymer or copolymer containing at least 90% of monomers belonging to acrylate or methacrylate with respect to the total weight of the binder resin.
C09D 133/00 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, a; Coating compositions based on derivatives of such polymers
C10M 129/40 - Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
C10M 129/44 - Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms containing hydroxy groups
F16L 15/04 - Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
C10N 40/00 - Specified use or application for which the lubricating composition is intended
C10N 50/02 - Form in which the lubricant is applied to the material being lubricated dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
7.
OIL WELL PIPE, OIL WELL PIPE SCREW JOINT, AND COATING MATERIAL
Provided is an oil well pipe screw joint having a solid lubrication coat having excellent lubrication and anti-rust properties. This oil well pipe constitutes a box (2) having a female screw or a pin (1) having a male screw that is used in the oil well pipe screw joint formed by linking the box (2) to the pin (1). The outermost layer of a screw section has a resin coat constituted of a binder resin containing an alkaline soap as a solid lubricant. The resin coat has an alkaline soap layer on the surface thereof.
C10M 129/28 - Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
C10N 30/06 - Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
C10N 30/12 - Inhibition of corrosion, e.g. anti-rust agents, anti-corrosives
C10N 40/00 - Specified use or application for which the lubricating composition is intended
C10N 50/02 - Form in which the lubricant is applied to the material being lubricated dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
8.
CHEMICAL SUBSTANCE FOR FORMING SOLID LUBRICANT COATING FILM, OIL WELL PIPE, AND SCREW-THREADED JOINT FOR OIL WELL PIPES
With respect to the lubrication properties of an oil well pipe during fastening and loosing operations, the present invention achieves, by using a solid lubricant coating film, seize resistance at a level equal to or higher than that achieved by the dope compounding method of the conventional technique. Provided is a screw-threaded joint for oil well pipes, the screw-threaded joint being provided with a box (2) having a thread and a pin (1) having a male thread (1a). A lubricant coating film provided with a solid lubricant coating film (3) is formed on a fastening surface (10) of a thread part in at least one component selected from the box (2) and the pin (1), the solid lubricant coating film (3) is composed of a solid lubricant agent dispersed in a binder resin, a polyamide-imide resin makes up 90% by weight or more of the binder resin, the average molecular weight of the polyamide-imide resin is 20,000 to 40,000 inclusive, PTFE (polytetrafluoroethylene) makes up 80% by weight or more of the solid lubricant agent, and the average molecular weight of the PTFE is 30,000 or less.
C10M 157/02 - Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a halogen-containing compound
C10N 20/04 - Molecular weight; Molecular weight distribution
C10N 30/06 - Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
C10N 40/00 - Specified use or application for which the lubricating composition is intended
C10N 50/08 - Form in which the lubricant is applied to the material being lubricated solid
F16B 33/06 - Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure
C10M 129/40 - Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
C10M 147/02 - Monomer containing carbon, hydrogen and halogen only
The present invention makes it possible to provide a solid lubricating film in which lubricity as well as excellent corrosion resistance can be imparted to an oil well pipe threading even if the solid lubricating film is employed as lubrication. Provided is a chemical agent for forming a solid lubricating film on a threaded part of an oil well pipe, wherein: a binder resin includes a prepolymer and a curing agent; the prepolymer comprises at least one type of epoxy resin; at least 70 parts by weight of the prepolymer are included relative to 100 parts by weight of the binder resin; the epoxide equivalent weight of the epoxy resin constituting the prepolymer is in the 100–500 range; at least 80 wt% of a solid lubricating agent is BN (boron nitride), the average particle size of the BN being no more than 10 μm; and the total weight of the solid lubricating agent is 0.1–2 times the total weight of the binder resin.
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
C10N 30/06 - Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
C10N 30/12 - Inhibition of corrosion, e.g. anti-rust agents, anti-corrosives
C10N 40/00 - Specified use or application for which the lubricating composition is intended
C10N 50/08 - Form in which the lubricant is applied to the material being lubricated solid
F16B 33/02 - Shape of thread; Special thread-forms
F16B 33/06 - Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure
C10M 103/00 - Lubricating compositions characterised by the base-material being an inorganic material
C10M 107/32 - Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
C10M 107/44 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
F16L 15/04 - Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
10.
CHEMICAL AGENT, OIL WELL PIPE, AND SCREW JOINT FOR OIL WELL PIPE
Regarding the lubrication properties when fastening and un-fastening an oil well pipe, the present invention achieves, by using a solid lubricate coating film, a baking resistance (galling resistance) equivalent to or better than that obtained from a conventional dope-compound method. This chemical agent is for forming a solid lubricate coating film on a fastening surface of a screw part, and contains, as a matrix component, a solid lubricant dispersed in a binder resin. The main component of the solid lubricant is melamine cyanurate. The mean particle diameter of the melamine cyanurate is 0.1-10.0 μm. An alkyd resin and a nitrocellulose are contained as the binder resin. The alkyd resin and the nitrocellulose are contained in an amount not less than 85 wt% of the weight of all binder resin components. The total weight of the solid lubricant is 10-100 parts by weight with respect to 100 parts by weight of the total weight of the binder resin.
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
C10N 30/06 - Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
C10N 30/12 - Inhibition of corrosion, e.g. anti-rust agents, anti-corrosives
C10N 40/00 - Specified use or application for which the lubricating composition is intended
C10N 50/08 - Form in which the lubricant is applied to the material being lubricated solid
C10M 105/24 - Carboxylic acids or their salts having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen
C10M 107/32 - Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
C10M 107/38 - Lubricating compositions characterised by the base-material being a macromolecular compound containing halogen
C10M 107/44 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
F16L 15/04 - Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
11.
CHEMICAL SUBSTANCE FOR FORMING SOLID LUBRICANT COATING FILM, OIL WELL PIPE, SCREW-THREADED JOINT FOR OIL WELL PIPES, AND METHOD FOR MANUFACTURING OIL WELL PIPE
22, PTFE, PFA and FEP is contained as the other solid lubricating agent among the at least two solid lubricating agents, the binder resin contains a PEEK resin having an average particle diameter of 20 μm or less as a main component, and the PEEK resin is contained in an amount of 70% or more relative to the whole weight of the binder resin.
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
C10N 30/06 - Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
C10N 30/12 - Inhibition of corrosion, e.g. anti-rust agents, anti-corrosives
C10N 40/00 - Specified use or application for which the lubricating composition is intended
C10N 50/08 - Form in which the lubricant is applied to the material being lubricated solid
F16B 33/02 - Shape of thread; Special thread-forms
F16B 33/06 - Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure
C10M 103/00 - Lubricating compositions characterised by the base-material being an inorganic material
Provided are a carbon heating composition and a carbon heating element which exhibit excellent heating efficiency. This carbon heating composition contains a prescribed amount, in relation to a binder, of graphite and carbon nanotubes as carbon components in a prescribed blending ratio; hence, the graphite and the carbon nanotubes are dispersed in the binder in a well-balanced manner. In addition, a carbon heating element obtained by producing a film from said composition is usable, when shaped into a planar carbon heating element (1) or the like forming a film (2) on a prescribed sheet and exhibiting excellent heating efficiency, as a heat-radiating member in a heating device, temperature control device, snow-melting device, or the like, a component or the like of a vehicle, motorcycle, or the like, and as a component or the like to be mounted onto various types of vehicles including wheeled machines, general machinery and equipment such as endless-track-equipped machines, transportation equipment, transportation vehicles, mechanical vehicles, and the like.
H05B 3/14 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
A part having an oil-repellent layer which exhibits such high oil repellency as to make droplets of fuel or lubricating oil slip speedily down the surface around a fuel injector nozzle; and a process for the production thereof, more specifically, a part (10) having an oil-repellent layer (14) which comprises a metal substrate (12) and an oil-repellent layer (14) formed on the surface of the substrate (12), characterized in that the oil-repellent layer (14) is constituted of an underlayer (16) of poly(ether sulfone) (PES) adhering tightly to the surface of the substrate (12) and a top layer (18) comprising a continuous PES phase (20) uniting with the PES of the underlayer (16) and a dispersed phase (22) of a tetrafluoroethylene/hexafluoro- propylene copolymer (FEP) and that the top layer (18) is exposed as the surface of the oil-repellent layer (14). It is preferable that the oil-repellent layer (14) have a PES/FEP weight ratio of 40 : 60 to 80 : 20, still preferably 60 : 40 to 75 : 25. Further, it is preferable in order to enhance the tight adhesion of the substrate (12) to the PES underlayer (16) that the substrate (12) have a roughened surface.
B32B 15/082 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising acrylic resins
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
F02M 61/18 - Injection nozzles, e.g. having valve-seats
patents
