A method for producing a dust-resistant sliding member, the method including a step of preparing a resin composition containing 0.5 to 5.0 parts by mass of a specific lubricant that is liquid at 25 C., 0.1 to 30 parts by mass of an inorganic filler, 1.0 to 20 parts by mass of a specific modified olefin-based polymer, and 0.01 to 5.0 parts by mass of an alkylene glycol-based polymer having a primary or secondary amino group, per 100 parts by mass of a polyacetal copolymer containing oxyalkylene units in a ratio of 0.4 to 0.9 mol % relative to all of the structural units; and a step of molding the resin composition into a prescribed shape.

A method for producing a dust-resistant sliding member, the method including a step of preparing a resin composition containing 0.5 to 5.0 parts by mass of a specific lubricant that is liquid at 25 C., 0.1 to 30 parts by mass of an inorganic filler, 1.0 to 20 parts by mass of a specific modified olefin-based polymer, and 0.01 to 5.0 parts by mass of an alkylene glycol-based polymer having a primary or secondary amino group, per 100 parts by mass of a polyacetal copolymer containing oxyalkylene units in a ratio of 0.4 to 0.9 mol % relative to all of the structural units; and a step of molding the resin composition into a prescribed shape.

A sliding member (excluding that used for an image forming apparatus), which can maintain a satisfactory friction coefficient and reduce generation of a rubbing sound (noise) caused by a continuously sliding member, is provided. A component and a mechanical apparatus using the sliding member, and a method for reducing noise caused from a mechanical apparatus, are also provided. Additionally, a coating agent composition is provided for preparing the sliding member. The sliding member has a lubricating film contacting another member, wherein an arithmetic average roughness Ra based on JIS B0601 (2001) of a surface of the lubricating film is from 0.01-1.0 m, and the lubricating film comprises 100 parts by mass of a coat-formable resin binder (A) and 5 to 200 parts by mass of a solid lubricant (B).

A sliding member (excluding that used for an image forming apparatus), which can maintain a satisfactory friction coefficient and reduce generation of a rubbing sound (noise) caused by a continuously sliding member, is provided. A component and a mechanical apparatus using the sliding member, and a method for reducing noise caused from a mechanical apparatus, are also provided. Additionally, a coating agent composition is provided for preparing the sliding member. The sliding member has a lubricating film contacting another member, wherein an arithmetic average roughness Ra based on JIS B0601 (2001) of a surface of the lubricating film is from 0.01-1.0 m, and the lubricating film comprises 100 parts by mass of a coat-formable resin binder (A) and 5 to 200 parts by mass of a solid lubricant (B).

A method for producing a dust-resistant sliding member, the method including a step of preparing a resin composition containing 0.5 to 5.0 parts by mass of a lubricant that is liquid at 25 C. and is composed of at least one material selected from the group consisting of ethylene/-olefin copolymers, poly--olefins and silicones, and 0.1 to 30 parts by mass of an inorganic filler, per 100 parts by mass of a polyacetal resin, and a step of molding the resin composition into a prescribed shape.

A method for producing a dust-resistant sliding member, the method including a step of preparing a resin composition containing 0.5 to 5.0 parts by mass of a lubricant that is liquid at 25 C. and is composed of at least one material selected from the group consisting of ethylene/-olefin copolymers, poly--olefins and silicones, and 0.1 to 30 parts by mass of an inorganic filler, per 100 parts by mass of a polyacetal resin, and a step of molding the resin composition into a prescribed shape.

The invention has an object of providing ethylene/-olefin copolymers having high randomness and a small number of double bonds in the copolymers. The ethylene/-olefin copolymers of the invention are obtained by copolymerizing ethylene and an -olefin having 3 to 20 carbon atoms in the presence of an olefin polymerization catalyst which includes a bridged metallocene compound (A) represented by the formula [I], and at least one compound (B) selected from organometallic compounds (B-1), organoaluminum oxy compounds (B-2) and compounds (B-3) capable of reacting with the bridged metallocene compound (A) to form an ion pair, and have a specific weight average molecular weight, a specific molecular weight distribution, a specific glass transition point and a specific value B.

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The invention has an object of providing ethylene/-olefin copolymers having high randomness and a small number of double bonds in the copolymers. The ethylene/-olefin copolymers of the invention are obtained by copolymerizing ethylene and an -olefin having 3 to 20 carbon atoms in the presence of an olefin polymerization catalyst which includes a bridged metallocene compound (A) represented by the formula [I], and at least one compound (B) selected from organometallic compounds (B-1), organoaluminum oxy compounds (B-2) and compounds (B-3) capable of reacting with the bridged metallocene compound (A) to form an ion pair, and have a specific weight average molecular weight, a specific molecular weight distribution, a specific glass transition point and a specific value B.

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The invention has an object of providing ethylene/-olefin copolymers having high randomness and a small number of double bonds in the copolymers. The ethylene/-olefin copolymers of the invention are obtained by copolymerizing ethylene and an -olefin having 3 to 20 carbon atoms in the presence of an olefin polymerization catalyst which includes a bridged metallocene compound (A) represented by the formula [I], and at least one compound (B) selected from organometallic compounds (B-1), organoaluminum oxy compounds (B-2) and compounds (B-3) capable of reacting with the bridged metallocene compound (A) to form an ion pair, and have a specific weight average molecular weight, a specific molecular weight distribution, a specific glass transition point and a specific value B. ##STR00001##

The invention has an object of providing ethylene/-olefin copolymers having high randomness and a small number of double bonds in the copolymers. The ethylene/-olefin copolymers of the invention are obtained by copolymerizing ethylene and an -olefin having 3 to 20 carbon atoms in the presence of an olefin polymerization catalyst which includes a bridged metallocene compound (A) represented by the formula [I], and at least one compound (B) selected from organometallic compounds (B-1), organoaluminum oxy compounds (B-2) and compounds (B-3) capable of reacting with the bridged metallocene compound (A) to form an ion pair, and have a specific weight average molecular weight, a specific molecular weight distribution, a specific glass transition point and a specific value B. ##STR00001##