Tire compounds containing syndiotactic-1,2-polybutadiene
    1.
    发明授权
    Tire compounds containing syndiotactic-1,2-polybutadiene 失效
    含间同立构1,2-聚丁二烯的轮胎化合物

    公开(公告)号:US4790365A

    公开(公告)日:1988-12-13

    申请号:US95205

    申请日:1987-09-11

    CPC classification number: C08L9/00 B60C1/0008 C09J123/283 C08L15/02 Y10S152/16

    Abstract: The subject invention discloses the use of syndiotactic-1,2-polybutadiene in the supporting carcass and/or innerliner of a tire. The incorporation of syndiotactic-1,2-polybutadiene into rubber compositions which are utilized in the supporting carcass or innerliner of tires greatly improves the green strength of those compositions. The incorporation of syndiotactic-1,2-polybutadiene into halogenated butyl rubbers which are utilized as innerliner compositions also greatly improves the scorch safety of such compositions. The subject invention more specifically discloses a pneumatic rubber tire which comprises a circumferential rubber tread, a supporting carcass therefor, two spaced beads, two rubber sidewalls connecting said beads and an innerliner; wherein said supporting carcass is comprised of from 1 to 25 phr of syndiotactic-1,2-polybutadiene having a melting point which is within the range of 120.degree. C. to 190.degree. C. and at least one rubber selected from the group consisting of polyisoprene, styrene-butadiene rubber, and polybutadiene rubber.

    Process for the functionalization of polystyrene resins
    3.
    发明授权
    Process for the functionalization of polystyrene resins 失效
    聚苯乙烯树脂官能化方法

    公开(公告)号:US4463135A

    公开(公告)日:1984-07-31

    申请号:US436475

    申请日:1982-10-25

    Applicant: Neil A. Maly

    Inventor: Neil A. Maly

    CPC classification number: C08F8/42 C08F8/00 C08F8/30 C08F2800/20 C08F2810/20

    Abstract: There is disclosed a process for the functionalization of polymeric resins, wherein a halo-methylated resin, with a crosslink density of at least 4 percent is reacted with an alkyllithium wherein the alkyl radical is 1 to 12 carbon atoms; followed by a reaction to produce a polymeric material having a desired pendant functionality. Materials produced from the process of this invention have utility as intermediates in the production of polymer-bound catalysts and exchange resins.

    Abstract translation: 公开了聚合物树脂官能化的方法,其中交联密度为至少4%的卤代甲基化树脂与其中烷基为1至12个碳原子的烷基锂反应; 随后产生具有所需侧链官能团的聚合物材料的反应。 从本发明方法生产的材料在生产聚合物结合的催化剂和交换树脂中具有实用性。

    Bicyclo-[3'3'0]-octa-2-ene formed by isomerizing 1,5-cyclooctadiene
    6.
    发明授权
    Bicyclo-[3'3'0]-octa-2-ene formed by isomerizing 1,5-cyclooctadiene 失效
    双环 - {8 3 {40 3 {40 0 {9-辛-2-烯通过异构化1,5-环辛二烯

    公开(公告)号:US4017552A

    公开(公告)日:1977-04-12

    申请号:US338771

    申请日:1973-03-07

    CPC classification number: C07C5/31

    Abstract: There is disclosed a method for isomerizing cyclic olefinic hydrocarbons to bicyclic olefins by contacting the cyclic olefins with a catalyst comprised of at least (1) a nickel compound selected from the class consisting of nickel salts of carboxylic acids and organonickel complexes and (2) at least one co-catalyst consisting of organoaluminum compounds or aluminum trihalides at atmospheric pressure and ambient temperatures.

    Abstract translation: 公开了一种使环烯烃异构化为双环烯烃的方法,该方法是使环状烯烃与至少包含(1)选自羧酸和有机镍配合物的镍盐的镍化合物和(2)在 在大气压和环境温度下由有机铝化合物或三卤化铝组成的至少一种助催化剂。

    Polymer bound dehydration catalyst and process for the production of
dienes
    9.
    发明授权
    Polymer bound dehydration catalyst and process for the production of dienes 失效
    聚合物结合脱水催化剂和二烯生产方法

    公开(公告)号:US4672051A

    公开(公告)日:1987-06-09

    申请号:US918206

    申请日:1986-10-14

    CPC classification number: C07C1/24 C07C2531/06

    Abstract: This invention is directed to a process and a catalyst for the conversion of an aldehyde to a diolefin comprising contacting an aldehyde of 4 to 6 carbon atoms in the vapor phase at a temperature of 200.degree. to 300.degree. C. with a polymer bound dehydration catalyst. More specifically, this invention is concerned with a process for the catalytic dehydration of 2-methylbutanal (2MBA) to isoprene in the vapor phase with a polymer bound dehydration catalyst.

    Abstract translation: 本发明涉及一种用于将醛转化为二烯烃的方法和催化剂,其包括在200-300℃的温度下,将气相中4至6个碳原子的醛与聚合物结合的脱水催化剂 。 更具体地,本发明涉及用聚合物结合的脱水催化剂在气相中将2-甲基丁醛(2MBA)催化脱水成异戊二烯的方法。

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