Method of coating a non-specific adsorption inhibitor and articles

    公开(公告)号:JP5344148B2

    公开(公告)日:2013-11-20

    申请号:JP2009013804

    申请日:2009-01-26

    Abstract: PROBLEM TO BE SOLVED: To provide an agent for preventing non-specific adsorption, preventing non-specific adsorption of a protein, a protein-loaded latex, etc. to an article, and also to provide a coating method of an article using the agent for preventing non-specific adsorption. SOLUTION: The agent for preventing non-specific adsorption contains a copolymer having: a repeating unit (A) having acrylamide represented by a formula (1) (wherein R 1 is hydrogen atom or methyl group; and R 2 is at least one chosen from hydrogen atom, methyl group, hydroxymethyl group and hydroxyethyl group), or an acrylamide derivative having an N-substituent; and a repeating unit (B) represented by formula (2) (wherein R 3 is hydrogen atom or methyl group; and Z is 4-12C organic group having at least one aldo group or keto group). COPYRIGHT: (C)2010,JPO&INPIT

    Polishing pad composition and a polishing pad using the same

    公开(公告)号:JP4438213B2

    公开(公告)日:2010-03-24

    申请号:JP2000333460

    申请日:2000-10-31

    Abstract: PROBLEM TO BE SOLVED: To provide a composition for abrasive pads suitably used for polishing, etc. of semiconductor wafers, etc. which may self-supply grains liberated from the abrasive pads, and also provide an abrasive pad. SOLUTION: This composition for abrasive pads is obtained by kneading 44 vol.% polyvinyl alcohol as a water-soluble substance (including those having a water-absorption property) and 12 vol.% cerium oxide as a grain in a small kneader, subsequently adding 44 vol.% thermoplastic polyester elastomer as a water-insoluble substance and kneading these. The obtained composition for abrasive pads is mold-pressed to yield a disc body having a diameter of 30 cm and a thickness of 3 mm, the surface of the disc body is subjected to cutting and flattening by a milling machine, and grooves having a depth of 1 mm and a width of 1 mm are formed in 6.5 mm intervals to obtain the abrasive pad.

    Bio-related material for articles and methods of manufacturing the same, as well as bio-related substance adsorption prevention for coating compositions and methods of use thereof

    公开(公告)号:JP5177340B2

    公开(公告)日:2013-04-03

    申请号:JP2005323391

    申请日:2005-11-08

    Abstract: PROBLEM TO BE SOLVED: To provide an article for bio-related substance, which is used for separation and purification of protein, a cell, nucleic acid, etc. in a medical and biochemical analysis fields, may reduce bio-related substance adsorption, is hardly attached by contaminants, and has high water resistance and strength and a method of manufacturing the same, and coating composition for adsorption preventive of a bio-related substance and a method of using the same. SOLUTION: The article for bio-related substance includes a coating formed by making a coating composition for adsorption prevention of bio-related substance to make contact with a surface of the article for bio-related substance and heating the composition, the coating composition including: (A) a copolymer obtained by copolymerizing raw material monomers including a monomer A1 shown by the following general formula (1) and an active hydrogen group-containing monomer A2; (B) a cross-linking agent reactive with an active hydrogen group; and (C) a solvent. Here, the formula (1) is CH 2 =CR 3 COOR 1 OR 2 , wherein R 1 represents a 1-4C alkylene group, R 2 a 1-4C alkyl group, and R 3 a hydrogen atom or a methyl group. COPYRIGHT: (C)2006,JPO&NCIPI

    Coating agent for preventing nonspecific adsorption of the bio-related substance

    公开(公告)号:JP4941672B2

    公开(公告)日:2012-05-30

    申请号:JP2008061118

    申请日:2008-03-11

    CPC classification number: C09D133/26 C08K5/25

    Abstract: A coating agent to prevent nonspecific adsorption of a substance, which comprises a water-soluble copolymer (P) comprising a repeating unit (A) represented by the following formula (1): wherein R 0 represents a hydrogen atom or a methyl group and X represents a group represented by the following formula (1a): wherein R 1 and R 2 independently represent a hydrogen atom or unsubstituted or substituted an alkyl group having from 1 to 8 carbon atoms or formula (1b): wherein R 3 and R 4 independently represent a single bond, substituted or unsubstituted methylene or substituted or unsubstituted divalent alkylene group having from 2 to 7 carbon atoms wherein total of the number of carbon atoms of R 3 and R 4 is from 4 to 10, and Y represents any one of a single bond, O and S; a repeating unit (B) represented by the following formula (2): wherein R 5 represents a hydrogen atom or a methyl group and Z represents an organic group containing at least one aldo group or keto group; and a hydrazide compound (H) comprising at least two hydrazino groups per one molecule.

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