To provide: a novel aliphatic hydrocarbon-aromatic compound-dicyclopentdiene copolymer petroleum resin which improves fracture resistance characteristics of rubber and enables both a wet grip property and a rolling resistance property of a tire; and a rubber composition using the same.SOLUTION: There is provided, an aliphatic hydrocarbon-aromatic compound-dicyclopentadiene copolymer petroleum resin, which is a copolymer of an unsaturated aliphatic hydrocarbon which is a thermolysis fraction of petroleum, an unsaturated aromatic compound, and dicyclopentadienes. The copolymer petroleum resin satisfies characteristics including: (1) a softening point of 80-130°C; (2) Mw of 1500-2500, Mz of 2500-6000, and Mz/Mw of 1.5-2.5; (3) (I) an area ratio of aliphatic hydrogens of 69-74%, (II) an area ratio of acyclic double bond-derived hydrogen of 2.0-4.0%, (III) an area ratio of hydrogen derived from dicyclopentadiene double bond of 1.3-2.5%, and (IV) an area ratio of aromatic hydrogen of 20-27%.SELECTED DRAWING: None

    【課題】 ゴムの耐破壊特性を向上し、タイヤのウェットグリップ性と転がり抵抗性の両立を可能とする新規な脂肪族炭化水素-芳香族化合物-ジシクロペンタジエン類共重合石油樹脂及びそれを用いたゴム組成物を提供することを目的とするものである。【解決手段】 石油類の熱分解留分である不飽和脂肪族炭化水素、不飽和芳香族化合物とジシクロペンタジエン類との共重合体であって、(1)軟化点が80~130℃、(2)Mw1500~2500、Mz2500~6000、Mz/Mw1.5~2.5、(3)(I)脂肪族性水素面積比率が69~74%、(II)非環状二重結合性水素面積比率が2.0~4.0%、(III)ジシクロペンタジエン類二重結合性水素面積比率が1.3~2.5%、(IV)芳香族性水素面積比率が20~27%、の特性を満足する脂肪族炭化水素-芳香族化合物-ジシクロペンタジエン類共重合石油樹脂。【選択図】 なし


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    Titel :

    ALIPHATIC HYDROCARBON-AROMATIC COMPOUND-DICYCLOPENTADIENE COPOLYMER PETROLEUM RESIN AND RUBBER COMPOSITION


    Weitere Titelangaben:

    脂肪族炭化水素-芳香族化合物-ジシクロペンタジエン類共重合石油樹脂及びゴム組成物


    Beteiligte:
    YURI TAKASHI (Autor:in) / UCHIDA YOSHIKI (Autor:in)

    Erscheinungsdatum :

    17.04.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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