34results about How to "Excellent in abrasion" patented technology

The hard carbon coating-clad base material of the present invention comprises a base material, a substratal metal coating formed on the base material by a wet plating process, an intermediate metal coating comprising a titanium or chromium coating formed on the substratal metal coating by a dry plating process and a silicon coating formed on the titanium or chromium coating by a dry plating process, and a hard carbon coating formed on the silicon coating by a dry plating process. According to the present invention, a highly reliable hard carbon coating which is excellent in corrosion resistance, adhesion and abrasion resistance can be formed even on brass or an iron base material having poor corrosion resistance, such as SK steel and martensitic and ferritic stainless steels.

One embodiment provides a molded body that includes a resin substrate and in which: a part or all of the surface of the substrate is coated with a hard coat; a first hard coat is formed from a coating material that does not contain inorganic particles and that contains (A) 100 parts by mass of a polyfunctional (meth)acrylate, (B) 0.01-7 parts by mass of a water-repelling agent, and (C) 0.01-10 parts by mass of a silane coupling agent; and a second hard coat is formed from a coating material containing (A) 100 parts by mass of the polyfunctional (meth)acrylate and (D) 50-300 parts by mass of fine inorganic particles having an average particle size of 1-300 nm. Another embodiment provides a molded body that includes a resin substrate and in which a part or all of the surface of the substrate is coated with a hard coat, a first hard coat is formed from a coating material that does not contain inorganic particles, a second hard coat is formed from a coating material containing inorganic particles, (i) the total light transmittance is 85% or more, and (ii) the pencil hardness of the surface of the first hard coat is 5H or more.

A flame-retardant thermoplastic resin composition, comprising a thermoplastic resin (a) and an inorganic flame-retarder (b), the content of the component (b) being 50 to 250 parts by mass with respect to 100 parts by mass of the component (a), wherein the component (a) includes at least one selected from the group consisting of an α-olefin (co)polymer (a-1), a thermoplastic elastomer (a-2) and a rubber (a-3); the component (a) (100% by mass) includes 0.01 to 0.5% by mass of a constituent unit derived from an unsaturated monomer having a carboxylic acid group or acid anhydride group; the component (b) includes 40 to 95% by mass of inorganic metal hydrate (b-1) and 5 to 60% by mass of inorganic filler (b-2); and the average particle diameter of the inorganic filler (b-2) is not more than 2 μm and the aspect ratio of the inorganic filler (b-2) is not more than 1.5.

The aqueous ink composition according to the invention includes at least a water-insoluble coloring agent, a glycol ether having an HLB value calculated by a Davies' method in the range of 4.2 to 8.0, a 1,2-alkyldiol having 4 to 8 carbon atoms, resin particles, and water.

Provide are a rubber composition for tire which is excellent in a wet grip performance and abrasion resistance and which has small rolling resistance and a low fuel consumption, and a tire prepared by using the above rubber composition. The rubber composition is prepared by compounding 100 parts by mass of a rubber component comprising a styrene-butadiene rubber or a styrene-butadiene rubber and a butadiene rubber with 2 to 200 parts by mass of carbon black as a reinforcing filler, wherein the carbon black has at least a hydrogen release rate of 0.2% by mass or more and / or a ratio N2SA / CTAB of 1.2 to 1.5 in which N2SA is a nitrogen adsorption specific surface area and CTAB is a cetyltributylammonium bromide adsorption specific surface area, and has a N2SA of 160 to 300 m2 / g.

The present invention provides a modified natural rubber having a reduced tan δ, a method for producing the modified natural rubber, a rubber composition produced using the modified natural rubber, and a pneumatic tire produced using the rubber composition. The present invention also provides a modified natural rubber having a reduced tan δ, a method for producing the modified natural rubber, a rubber composition produced using the modified natural rubber and achieving good fuel economy and abrasion resistance at the same time, and a pneumatic tire produced using the rubber composition. The present invention relates to a modified natural rubber having a phosphorus content of 200 ppm or less and a total content of sodium and potassium of 350 ppm or less. The invention also relates to a modified natural rubber having a phosphorus content of 200 ppm or less and a nitrogen content of 0.2% by mass or less.

An embodiment provides an adhesive film having, in order from the surface layer side, a first hard coat, a second hard coat, a transparent resin film layer, and an adhesive layer. The first hard coat is formed from a coating that does not include inorganic particles. The second hard coat is formed from a coating that includes inorganic particles. The adhesive film satisfies the following conditions: (i) the total light transmittance is at least 85%; and (vii) the pencil hardness of the first hard coat surface is at least 5H. Another embodiment provides an adhesive film having, in order from the surface layer side, a first hard coat, a second hard coat, a transparent resin film layer, and an adhesive layer. The first hard coat is formed from a coating that does not include inorganic particles. The second hard coat is formed from a coating that includes inorganic particles. The adhesive film satisfies the following conditions: (i) the total light transmittance is at least 85%; (iv) the water contact angle at the first hard coat surface is at least 100 degrees; and (v) the water contact angle at the first hard coat surface after 20,000 reciprocal cotton rubs is at least 100 degrees.