POLYISOBUTYLENE COPOLYMERS HAVING REACTIVE SILYL GRAFTS
    4.
    发明申请
    POLYISOBUTYLENE COPOLYMERS HAVING REACTIVE SILYL GRAFTS 审中-公开
    具有反应性SILYL GRAFTS的聚异丁烯共聚物

    公开(公告)号:WO00052073A1

    公开(公告)日:2000-09-08

    申请号:PCT/US2000/004095

    申请日:2000-02-17

    Abstract: A copolymer of isobutylene with 0.5 to 15 mole percent of a conjugated diene (i.e., a butyl rubber) is reacted with a silane having both an alkenyl group as well as at least two silicon-bonded hydrolyzable group, the reaction taking place in the presence of a free-radical generator, to provide a modified copolymer having reactive silyl groups grafted thereto. The modified copolymer exhibits a reduced molecular weight relative to the starting copolymer and may be used to formulate moisture-curable sealants, caulks, adhesive and coatings.

    Abstract translation: 将异丁烯与0.5〜15摩尔%的共轭二烯(即丁基橡胶)的共聚物与具有链烯基以及至少两个硅键合的可水解基团的硅烷反应,反应在存在下进行 的自由基发生剂,以提供具有接枝到其上的反应性甲硅烷基的改性共聚物。 改性共聚物相对于起始共聚物显示出降低的分子量,并且可用于配制可湿气固化的密封剂,填缝剂,粘合剂和涂料。

    SILYL-FUNCTIONAL LIVING CATIONIC POLYMERS
    5.
    发明申请
    SILYL-FUNCTIONAL LIVING CATIONIC POLYMERS 审中-公开
    SILYL功能活性阳离子聚合物

    公开(公告)号:WO00032654A1

    公开(公告)日:2000-06-08

    申请号:PCT/US1999/027460

    申请日:1999-11-19

    CPC classification number: C08F8/42 C08C19/44 C08F255/08 C08F257/02 C08F279/02

    Abstract: There is disclosed a method for preparing a silyl-functional living cationic polymer which can be subsequently coupled to form a moisture-curable telechelic system, said method comprising reacting, in the presence of a Lewis acid, (A) at least one cationically polymerizable monomer with (B) an initiator of formula (i) wherein R is selected from alkyl groups having 1 to 10 carbon atoms or aryl groups having 6 to 10 carbon atoms, R' is a divalent aliphatic hydrocarbon group having at least 3 carbon atoms, X is halogen, Y is selected from the group consisting of halogen, alkoxy, acyloxy and hydroxyl groups and a is 1, 2, or 3.

    Abstract translation: 公开了一种制备甲硅烷基官能的活性阳离子聚合物的方法,其可以随后偶联以形成湿气固化遥爪系统,所述方法包括在路易斯酸存在下使(A)至少一种阳离子可聚合单体 与(B)式(i)的引发剂,其中R选自具有1至10个碳原子的烷基或具有6至10个碳原子的芳基,R'是具有至少3个碳原子的二价脂族烃基,X 是卤素,Y选自卤素,烷氧基,酰氧基和羟基,a是1,2或3。

    A POLYPROPYLENE-BASED COMPOSITION WITH IMPROVED TRANSPARENCY, IMPACT VISCOSITY AND HARDNESS FOR INJECTION MOLDED THIN-WALLED ARTICLES, A METHOD FOR PREPARING SUCH COMPOSITION AND ARTICLES MADE THEREFROM

    公开(公告)号:WO2020091621A1

    公开(公告)日:2020-05-07

    申请号:PCT/RU2018/000720

    申请日:2018-11-02

    Abstract: The present invention is related to a polypropylene-based composition for making injection molded articles, comprising, based on the total weight of the composition: (A) from 53.8 to 79.8 wt. % of crystalline isotactic polypropylene, (B) from 10 to 20 wt. % of elastomer based on copolymer of ethylene with -olefin comprising 4 to 10 carbon atoms, and (C) from 10 to 25 wt. % of one or several homopolymers of ethylene and/or random thermoplastic copolymers of ethylene with -olefins comprising 3 to 10 carbon atoms; and also (D) a modifying system comprising from 0.04 to 0.64 wt. % of organic peroxide (D1) and from 0.04 to 0.64 wt. % of co-agent (D2), that is a vinyl monomer with three or more acrylate functional groups, and (E) from 0.05 to 1.0 wt. % of nucleating agent and optional additives. The composition is made by a two-stage method comprising a stage of providing a modified concentrate composition by mixing and compounding the components in a melt using mixing equipment and extruder. The obtained polypropylene-based composition has an optimal balance of properties, in particular increased flowability, improved impact resistance and hardness, and also transparency. The invention is also related to use of the polypropylene-based composition for making injection molded articles and also to an article based on the obtained composition.

    変性炭化水素樹脂
    8.
    发明申请

    公开(公告)号:WO2018180462A1

    公开(公告)日:2018-10-04

    申请号:PCT/JP2018/009711

    申请日:2018-03-13

    Abstract: 本発明は、低臭気で、色調に優れ、耐熱色相安定性にも優れる変性炭化水素樹脂を提供することを主目的とする。 本発明は、1,3-ペンタジエン単量体単位20質量%~70質量%、炭素数4~6の脂環式モノオレフィン単量体単位10質量%~40質量%、炭素数4~8の非環式モノオレフィン単量体単位5質量%~30質量%、脂環式ジオレフィン単量体単位0質量%~1質量%、及び芳香族モノオレフィン単量体単位0質量%~40質量%を含む炭化水素樹脂を水添してなる樹脂に、不飽和カルボン酸または不飽和ジカルボン酸無水物に由来するカルボキシル基または酸無水物基が導入されてなるものであり、オレフィンの水添率が0.1%~80%の範囲内である、変性炭化水素樹脂を提供することにより、上記課題を解決する。

    LIQUID MALEATED BUTYL RUBBER
    10.
    发明申请
    LIQUID MALEATED BUTYL RUBBER 审中-公开
    液体马来酸丁酯橡胶

    公开(公告)号:WO2007006138A1

    公开(公告)日:2007-01-18

    申请号:PCT/CA2006/001115

    申请日:2006-07-06

    Abstract: The present invention relates to a grafted liquid polymer comprising a polymer of a C 4 to C 7 monoolefin monomer and a C 4 to C 14 multiolefin monomer, a grafting material and a free radical initiator and to a process for the preparation of the grafted liquid polymer. More specifically, a liquid maleated butyl rubber composition is disclosed. The present invention also relates to grafted liquid polymer compositions which are curable in the presence of multifunctional amines. The compositions of the invention are used in a variety of applications, including injection molded fuel cells gaskets, adhesives, sealants or as polyurethane substrates.

    Abstract translation: 本发明涉及一种接枝液体聚合物,其包含C 4〜C 7单烯烃单体的聚合物和C 4〜C 7 多烯烃单体,接枝材料和自由基引发剂以及制备接枝液体聚合物的方法。 更具体地,公开了液体马来化丁基橡胶组合物。 本发明还涉及在多官能胺存在下可固化的接枝液体聚合物组合物。 本发明的组合物用于各种应用中,包括注射成型的燃料电池垫圈,粘合剂,密封剂或聚氨酯基材。

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