# US 7,608,309 B2 · Resin composition, film and image display device utilizing the resin composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,608,309 B2 - Document ID: US7608309B2 - Status: Granted - Kind: B2 - Application number: 11/088,988 - Filed: 2005-03-24 - Published: 2006-02-16 - Granted: 2009-10-27 - Earliest claimed: 2004-03-24 - Assignees: FUJIFILM Corporation - Inventors: Tetsufumi Takamoto; Seiya Sakurai - Web page: https://patentgrep.com/patent/US7608309B2 ## CPC - C08G 63/185: containing two or more aromatic rings - C08G 61/02: Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes - C08L 65/00: Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain (C08L7/00 - C08L57/00, C08L61/00 take precedence); Compositions of derivatives of such polymers - C09K 2323/00: Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition - G02F 1/133305: {Flexible substrates, e.g. plastics, organic film} - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract A resin composition containing a polymer comprising a repeating unit having a spiro structure and/or a cardo structure. The resin composition has superior heat resistance and is utilized to produce an optical film and an image display. ## Claims ### Claim 1 A resin composition containing a polymer comprising a chemical structure represented by the following formula (1) or (2) as a repeating unit: wherein the rings α represent a monocyclic or polycyclic ring, and two of the rings α may be identical or different, and are bound via a spiro bond, wherein the ring β and the rings γ represent a monocyclic or polycyclic ring, and two of the rings γ may be identical or different, and bond to one quaternary carbon atom in the ring β. ### Claim 2 (depends on 1) The resin composition according to claim 1, wherein the polymer comprises a chemical structure represented by the formula (1) as a repeating unit. ### Claim 3 (depends on 2) The resin composition according to claim 2, wherein the polymer is derived from the dicarboxylic acid represented by the following formula (3) or a derivative thereof: wherein R31 to R34 each independently represent hydrogen atom or a substituent, R35 and R36 each independently represent a substituent, and m and n each independently represent an integer of 0 to 3. ### Claim 4 (depends on 2) The resin composition according to claim 2, wherein the polymer comprises a chemical structure represented by the following formula (4) as a repeating unit: wherein R41 to R44 each independently represent hydrogen atom or a substituent, R45 and R46 each independently represent a substituent, and r and s each independently represent an integer of 0 to 3. ### Claim 5 (depends on 2) The resin composition according to claim 2, wherein the polymer comprises a chemical structure represented by the following formula (5) as a repeating unit: wherein R51 to R58 each independently represent hydrogen atom or a substituent, R59 to R510 each independently represent a substituent, and k and l each independently represent an integer of 0 to 3. ### Claim 6 (depends on 2) The resin composition according to claim 2, wherein the polymer comprises a chemical structure represented by the following formula (6) as a repeating unit: wherein R61 to R68 each independently represent hydrogen atom or a substituent, R69 and R610 each independently represent a substituent, and p and q each independently represent an integer of 0 to 3. ### Claim 7 (depends on 1) The resin composition according to claim 1, wherein the polymer comprises a chemical structure represented by the formula (2) as a repeating unit. ### Claim 8 (depends on 7) The resin composition according to claim 7, wherein the polymer comprises a chemical structure represented by the following formula (7) as a repeating unit: wherein R71 to R74 each independently represent a substituent, a, b, c and d each independently represent an integer of 0 to 4. ### Claim 9 (depends on 1) The resin composition according to claim 1, wherein the polymer has a grass transition temperature of 200° C. or higher. ### Claim 10 (depends on 1) A film utilizing the resin composition according to claim 1. ### Claim 11 (depends on 10) The film according to claim 10, wherein the film is an optical film. ### Claim 12 (depends on 10) The film according to claim 10, wherein the film is an gas barrier film. ### Claim 13 (depends on 12) The film according to claim 12, wherein a gas barrier layer is provided on at least one surface of a layer comprising the resin composition. ### Claim 14 (depends on 10) The film according to claim 10, wherein the film is a conductive film. ### Claim 15 (depends on 14) The film according to claim 14, wherein a transparent conductive layer is provided on at least one surface of a layer comprising the resin composition. ### Claim 16 (depends on 14) An image display utilizing the film according to claim 14 as a substrate. ### Claim 17 (depends on 16) The image display according to claim 16, which has a flat panel display. ### Claim 18 (depends on 17) The image display according to claim 17, wherein the flat panel is a liquid crystal panel or an organic electroluminescence panel.