PROBLEM TO BE SOLVED: To provide a 1,3-butadiene or isoprene copolymer useful for a pneumatic tire, in which the content of cis 1,4 microstructure with a borolane functional group introduced thereinto is greater than 80 percent by weight.SOLUTION: The present invention is directed to a copolymer of 1,3-butadiene or isoprene and a monomer of formula I or V, and to a rubber composition including the copolymer. [Ris a covalent bond, phenylene, a C1-10 linear or branched alkanediyl group, or a combination of one or more phenylene groups and one or more C1-10 linear or branched alkanediyl groups; Rand Rare each independently a C1-10 linear or branched alkyl group; and Ris a C1-20 linear or branched alkyl group, or a bridging aromatic group.SELECTED DRAWING: None
【課題】ボロラン官能基を導入したシス1,4ミクロ構造含量が80重量パーセントを超える、空気入りタイヤに有用な1,3−ブタジエン又はイソプレンコポリマーの提供。【解決手段】1,3−ブタジエン又はイソプレンと、式I又はVのモノマーとのコポリマー、及び該コポリマーを含むゴム組成物。[R1は共有結合、フェニレン、C1〜10の直鎖/分枝のアルカンジイル基又は一つ以上のフェニレン基と、一つ以上のC1〜10の直鎖又は分枝のアルカンジイル基と、の組合せ;R2及びR3は各々独立に、C1〜10の直鎖/分岐のアルキル基;R5はC1−20の直鎖/分岐のアルキル基又は芳香族橋かけ基]【選択図】なし
FUNCTIONALIZED ELASTOMER CONTAINING BORON GROUP
ホウ素基を含有する官能化エラストマー
2017-09-14
Patent
Electronic Resource
Japanese
IPC: | 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 / B60C VEHICLE TYRES , Fahrzeugreifen / C07F Acyclische, carbocyclische oder heterocyclische Verbindungen, die andere Elemente als Kohlenstoff, Wasserstoff, Halogen, Sauerstoff, Stickstoff, Schwefel, Selen oder Tellur enthalten , ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |