Modified monoolefin copolymer elastomer with improved heat and oil
resistance
    1.
    发明授权
    Modified monoolefin copolymer elastomer with improved heat and oil resistance 失效
    改进的单烯烃共聚物弹性体具有改善的耐热和耐油性

    公开(公告)号:US4316971A

    公开(公告)日:1982-02-23

    申请号:US40784

    申请日:1979-05-21

    CPC分类号: C08F255/02

    摘要: An EPM or EPDM type of elastomer is modified by graft copolymerization with acylic ester type of monomeric material, said monomeric material being material whose homopolymer has a glass transition temperature of not greater than 6.degree. C., in an amount sufficient to provide an ester group (--COO--) content of from 25 to 40% by weight, to yield a mixed copolymerizate vulcanizable to a heat and oil resistant elastomeric state.

    摘要翻译: EPM或EPDM类型的弹性体通过与酰基酯型单体材料的接枝共聚改性,所述单体材料是均聚物的玻璃化转变温度不高于6℃的材料,其量足以提供酯基 (-COO-)含量为25至40重量%,以产生可硫化成耐热和耐油弹性体状态的混合共聚物。

    1,2,3,4,9,9-Hexachloro-1,4-dihydro-8-hydroxy(alkoxy)-1,4
-methanonaphth-5-yl-dialkyl phosphates
    6.
    发明授权
    1,2,3,4,9,9-Hexachloro-1,4-dihydro-8-hydroxy(alkoxy)-1,4 -methanonaphth-5-yl-dialkyl phosphates 失效
    1,2,3,4,9,9-六氯-1,4-二氢-8-羟基(烷氧基)-1,4-甲基萘-5-基 - 二烷基磷酸酯

    公开(公告)号:US4080408A

    公开(公告)日:1978-03-21

    申请号:US789006

    申请日:1977-04-20

    IPC分类号: C08K5/523 C07F9/12 C07F9/09

    CPC分类号: C08K5/523

    摘要: A fire retardant system comprising a compound having within its structure the 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanonaphthalene-5,8-dione or 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanonaphthalene-5,8-dioxy nucleus or a compound which is capable of being converted to the 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanonaphthalene-5,8-dione nucleus and requires no metal oxide addition to exert its function.

    摘要翻译: 一种阻燃体系,其包含在其结构内具有1,2,3,4,9,9-六氢-1,4-二氢-1,4-亚甲基萘-5,8-二酮或1,2,3,4-三 4,9,9-六氢-1,4-二氢-1,4-亚甲基萘-5,8-二核或能够转化为1,2,3,4,9,9-六氢环的化合物 -1,4-二氢-1,4-亚甲基萘-5,8-二酮核,并且不需要添加金属氧化物来发挥其功能。

    Activators for Ziegler type polymerization catalysts
    10.
    发明授权
    Activators for Ziegler type polymerization catalysts 失效
    齐格勒型聚合催化剂的活化剂

    公开(公告)号:US4347159A

    公开(公告)日:1982-08-31

    申请号:US152900

    申请日:1980-05-23

    CPC分类号: C08F10/00

    摘要: A catalyst composition is provided with an activator in combination with a primary catalyst system. The primary catalyst system is a vanadium compound and an organometallic compound of the formula RMgX, LiAlr.sub.4, or R.sub.A Al.sub.2 X.sub.B, wherein R is a hydrocarbon radical having 1 to 12 carbon atoms, X is a halogen atom; A is a number from 2 to 6, and B is a number from 0 to 4, with the proviso that the sum of A and B is 6 and that at least one of the groups attached either to the vanadium compound or to the organometallic compound is a halogen atom. The activator is a chlorinated tetrahydrofurfuryl tetrahydrofuroate, an alkyl ester of chlorinated tetrahydrofuroic acid wherein the alkyl group has 1 to 8 carbon atoms, a chlorinated alkylene bistetrahydrofuroate wherein the alkylene group has 2 or 3 carbon atoms, a chlorinated oxy-bis [alkylene (2-furoate)], wherein the alkylene group is ethanediyl, 1,3 propanediyl, alkyl substituted ethanediyl or alkyl substituted 1,3 propanediyl wherein the alkyl group on the ethanediyl or 1,3 propanediyl has 1 to 8 carbon atoms, or bis (trichloromethyl)sulfone.

    摘要翻译: 提供催化剂组合物与主催化剂体系组合的活化剂。 主催化剂体系是钒化合物和式RMgX,LiAlr 4或RAAl 2 XB的有机金属化合物,其中R是具有1至12个碳原子的烃基,X是卤素原子; A是2至6的数,B是0至4的数,条件是A和B的和为6,并且至少一个与钒化合物或有机金属化合物相连的基团 是卤原子。 活化剂是氯化四氢糠基四氢糠酸酯,其中烷基具有1至8个碳原子的氯化四氢呋喃酸的烷基酯,其中亚烷基具有2或3个碳原子的氯化亚烷基双四氢糠酸酯,氯代氧 - 双[亚烷基(2 - 糠酸酯)],其中亚烷基是乙二基,1,3-丙二基,烷基取代的乙二基或烷基取代的1,3-丙二基,其中乙二基或1,3-丙二基上的烷基具有1至8个碳原子,或双(三氯甲基 )砜。