The invention concerns coating composition comprising hydrophobic polymer for use as a photoreactive basecoat for a medical device or implant comprising a polymer made from monomers comprising: (a) 1 to 12 mol % of at least one photoactive monomer that is a hydrogen atom abstracter and (b) 99 to 88 mol % of one or more of acrylamides, methacrylamides, acrylates, methacrylates, and N-vinylpyrrolidone; wherein the polymer has a glass transition temperature (Tg) of less than 40° C.

An entry sheet for drilling comprising: a metallic foil; and a layer of a resin composition on at least one surface of the metallic foil, the resin composition comprising a polyolefin resin (A) and a water-soluble resin (B), wherein a content of the polyolefin resin (A) is 25 parts by mass or more and 50 parts by mass or less based on 100 parts by mass of the total of the polyolefin resin (A) and the water-soluble resin (B), a content of the water-soluble resin (B) is 50 parts by mass or more and 75 parts by mass or less based on 100 parts by mass of the total of the polyolefin resin (A) and the water-soluble resin (B), and the water-soluble resin (B) comprises a high-molecular-weight water-soluble resin (B-1) having a weight average molecular weight of 2×10.sup.5 or higher and 1.5×10.sup.6 or lower.

The invention concerns coating composition comprising hydrophobic polymer for use as a photoreactive basecoat for a medical device or implant comprising a polymer made from monomers comprising: (a) 1 to 12 mol % of at least one photoactive monomer that is a hydrogen atom abstracter and (b) 99 to 88 mol % of one or more of acrylamides, methacrylamides, acrylates, methacrylates, and N-vinylpyrrolidone; wherein the polymer has a glass transition temperature (Tg) of less than 40 C.

The present invention provides a cutting work method comprising a cutting work step of forming a through-groove passing through from a surface to a back face of a workpiece material by cutting the workpiece material with a cutting tool while bringing a lubricant material for assisting cutting process into contact with the cutting tool and/or the to-be-processed portion of the workpiece material, wherein the workpiece material comprises one or more materials selected from the group consisting of a metal, a fiber reinforced plastic, ceramic, and a composite material thereof.

A lubricant material for assisting machining process comprising a polyethylene oxide-polypropylene oxide copolymer having a weight average molecular weight of 5.010.sup.4 or more and 2.010.sup.5 or less.

A release agent for a hot-forging die, containing micronanobubbles.

Prepared is a film including at least one surface having a friction property having A of not less than 0.01 and B of not greater than 0.6, A and B being values obtained from friction testing, wherein

the friction testing includes measuring relative dynamic friction coefficients of the at least one surface at various moving speeds v (mm/s) of a contact probe, creating a plot of log(v), log(v) being a common logarithm of the moving speed, on a horizontal axis and on a vertical axis and performing linear fitting to obtain a straight line, and

A is a slope of the straight line and B is an intercept of the straight line. The tactile film includes a tactile layer, which is formed of a cured product of a curable composition including a curable resin and is disposed on the outermost layer; and the surface of the tactile layer may have a friction property having a slope A of 0.01 or higher and an intercept B of 0.6 or lower. The curable resin may include a (meth)acrylic polymer having a polymerizable group, a urethane (meth)acrylate, a silicone (meth)acrylate, and a cellulose ester. The curable composition may include no fine particles. The tactile layer of the film may be laminated on a substrate layer formed of a transparent resin. The film has excellent finger slidability.

An entry sheet for drilling comprising: a metallic foil; and a layer of a resin composition on at least one surface of the metallic foil, the resin composition comprising a polyolefin resin (A) and a water-soluble resin (B), wherein a content of the polyolefin resin (A) is 25 parts by mass or more and 50 parts by mass or less based on 100 parts by mass of the total of the polyolefin resin (A) and the water-soluble resin (B), a content of the water-soluble resin (B) is 50 parts by mass or more and 75 parts by mass or less based on 100 parts by mass of the total of the polyolefin resin (A) and the water-soluble resin (B), and the water-soluble resin (B) comprises a high-molecular-weight water-soluble resin (B-1) having a weight average molecular weight of 210.sup.5 or higher and 1.510.sup.6 or lower.

A lubricant made by a method of modifying fluid suspended metal sulfide particles that does not require use of hazardous additives. The base oil is derived from a proprietary ester lubricant. The formulation process includes a centrifugation step to remove non-colloidal metal sulfide particles. These non-colloidal particles may be collected and turned into colloidal particles for use in future batches of lubricant.

The present invention relates to a tricresyl phosphate-free oil which can be used as lubricant or hydraulic oil. The oil is distinguished by extremely low human toxicity. In particular, the oil is suitable as turbine oil, i.e. as lubricant oil in aircraft turbines, with which, in the case of a fume event, symptoms of the aerotoxic syndrome in aircraft passengers can be prevented. In addition, the present invention relates to the corresponding use of the turbine oil according to the invention for the prophylaxis of the aerotoxic syndrome in the case of a fume event. In addition, the invention describes a turbine which contains a corresponding turbine oil as lubricant. Furthermore, the method for operating a turbine is indicated.