# US 2014/0194557 A1 · New polymer, surface hydrophilizing agent containing said polymer, and manufacturing method for substrate having hydrophilic surface > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0194557 A1 - Document ID: US20140194557A1 - Status: Published application - Kind: A1 - Application number: 14/238,073 - Filed: 2012-08-10 - Published: 2014-07-10 - Earliest claimed: 2011-08-10 - Assignees: Jsr Corporation - Inventors: Naoki Hayashi; Toshihiro Ogawa; Shin-Ichirou Iwanaga; Kazuhiro Iso - Web page: https://patentgrep.com/patent/US20140194557A1 ## CPC - C08F 8/06: Oxidation - C08F 8/34: Introducing sulfur atoms or sulfur-containing groups - C08F 22/02: Acids; Metal salts or ammonium salts thereof {, e.g. maleic acid or itaconic acid} - C08F 24/00: Homopolymers and 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 a heterocyclic ring containing oxygen (cyclic esters of polyfunctional acids C08F18/00; cyclic anhydrides of unsaturated acids C08F20/00, C08F22/00) - C08F 28/02: by a bond to sulfur - C08F 212/08: Styrene - C08F 220/38: Esters containing sulfur - C08F 267/06: on to polymers of esters - C08F 290/068: {Polysiloxanes} - C09D 133/02: Homopolymers or copolymers of acids; Metal or ammonium salts thereof - C09D 137/00: 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 a heterocyclic ring containing oxygen (based on polymers of cyclic esters of polyfunctional acids C09D131/00; based on polymers of cyclic anhydrides of unsaturated acids C09D135/00); Coating compositions based on derivatives of such polymers - C09D 141/00: 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 a bond to sulfur or by a heterocyclic ring containing sulfur; Coating compositions based on derivatives of such polymers - C09D 151/003: {grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds (C09D151/04, C09D151/06 take precedence)} - C08F 293/005: {using free radical "living" or "controlled" polymerisation, e.g. using a complexing agent} - C08F 2438/03: Use of a di- or tri-thiocarbonylthio compound, e.g. di- or tri-thioester, di- or tri-thiocarbamate, or a xanthate as chain transfer agent, e.g . Reversible Addition Fragmentation chain Transfer [RAFT] or Macromolecular Design via Interchange of Xanthates [MADIX] - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) ## Abstract To provide a novel polymer having an excellent non-specific adsorption inhibitory effect, a surface-hydrophilizing agent comprising the polymer, and a method for producing a substrate having a hydrophilic surface. The polymer comprises a hydrophilic repeating unit having a sulfinyl group in a side chain thereof. ## Claims ### Claim 1 A polymer, comprising a hydrophilic repeating unit comprising a sulfinyl group in a side chain thereof. ### Claim 2 (depends on 1) The polymer according to claim 1, wherein the hydrophilic repeating unit is represented by the following formula (2): wherein: R1 represents a hydrogen atom or a methyl group; R2 represents —O—, *—(C═O)—O—, *—(C═O)—NR5—, *—NR5—(C═O)—, or a phenylene group; R5 represents a hydrogen atom or a C1 to C10 organic group; * denotes the position of bonding to the carbon atom to which R1 is bonded in formula (2); R3 represents a direct bond or a C1 to C24 divalent organic group; and R4 represents a C1 to C10 organic group. ### Claim 3 (depends on 1) The polymer according to claim 1, wherein the hydrophilic repeating unit further comprises a hydroxy group in a side chain thereof. ### Claim 4 (depends on 1) The polymer according to claim 1, further comprising a hydrophobic repeating unit. ### Claim 5 (depends on 4) The polymer according to claim 4, wherein the hydrophobic repeating unit is derived from at least one monomer selected from the group consisting of a styrene, a (meth)acrylate, and a (meth)acrylamide. ### Claim 6 (depends on 1) The polymer according to claim 1, which is water-soluble. ### Claim 7 (depends on 1) The polymer according to claim 1, which has an HLB value of 10 to 22. ### Claim 8 (depends on 1) A surface-hydrophilizing agent, comprising the polymer of claim 1. ### Claim 9 (depends on 8) The surface-hydrophilizing agent according to claim 8, wherein the hydrophilic repeating unit is represented by the following formula (2): wherein: R1 represents a hydrogen atom or a methyl group; R2 represents —O—, *—(C═O)—O—, *—(C═O)—NR5—, *—NR5—(C═O)—, or a phenylene group; R5 represents a hydrogen atom or a C1 to C10 organic group; * denotes the position of bonding to the carbon atom to which R1 is bonded in formula (2); R3 represents a direct bond or a C1 to C24 divalent organic group; and R4 represents a C1 to C10 organic group. ### Claim 10 (depends on 8) The surface-hydrophilizing agent according to claim 8, wherein the hydrophilic repeating unit of the polymer further comprises a hydroxy group in a side chain thereof. ### Claim 11 (depends on 8) The surface-hydrophilizing agent according to claim 8, wherein the polymer further comprises a hydrophobic repeating unit. ### Claim 12 (depends on 11) The surface-hydrophilizing agent according to claim 11, wherein the hydrophobic repeating unit of the polymer is derived from at least one monomer selected from the group consisting of a styrene, a (meth)acrylate, and a (meth)acrylamide. ### Claim 13 (depends on 8) The surface-hydrophilizing agent according to claim 8, wherein the polymer is water-soluble. ### Claim 14 (depends on 8) The surface-hydrophilizing agent according to claim 8, wherein the polymer has an HLB value of 10 to 22. ### Claim 15 (depends on 8) A method for producing a substrate having a hydrophilic surface, the method comprising contacting a substrate with the surface-hydrophilizing agent of claim 8.