Mixtures of polypropylene and liquid saturated diorganopolysiloxanes
    2.
    发明授权
    Mixtures of polypropylene and liquid saturated diorganopolysiloxanes 失效
    聚丙烯和液体饱和二有机聚硅氧烷的混合物

    公开(公告)号:US4287108A

    公开(公告)日:1981-09-01

    申请号:US119940

    申请日:1980-02-08

    CPC分类号: C08L23/12 C08L83/04

    摘要: A homogeneous, thermoplastic mixture comprising (A) from 85 to 99.5% by weight of isotactic polypropylene; and (B) from 15 to 0.5% by weight of a liquid, saturated diorganopolysiloxane having a viscosity of from 30,000 to 80,000 cSt at 20.degree. C.The elastic properties of moulded articles produced from the polypropylene/diorganopolysiloxane mixtures of the present invention are substantially improved by the addition of small quantities of diorganopolysiloxane while their dimensional stability under heat and their rigidity are largely preserved.

    摘要翻译: 一种均匀的热塑性混合物,其包含(A)85-99.5重量%的全同立构聚丙烯; 和(B)15至0.5重量%的在20℃下粘度为30,000至80,000cSt的液体饱和二有机聚硅氧烷。由本发明的聚丙烯/二有机聚硅氧烷混合物制备的模制品的弹性性质基本上 通过添加少量的二有机聚硅氧烷来改善,同时它们在加热下的尺寸稳定性和它们的刚性被大大保持。

    Catalyst on a solid carrier for the polymerization of .alpha.-olefins
    3.
    发明授权
    Catalyst on a solid carrier for the polymerization of .alpha.-olefins 失效
    用于α-烯烃聚合的固体载体上的催化剂

    公开(公告)号:US4276193A

    公开(公告)日:1981-06-30

    申请号:US72085

    申请日:1979-09-04

    CPC分类号: C08F10/00

    摘要: A process for the preparation of a stereospecific .alpha.-olefin polymerization catalyst which comprises (i) forming a solid carrier from an anhydrous magnesium compound and an electron donor compound; (ii) contacting the solid carrier obtained in step (i) with a solution of TiCl.sub.4 in an inert solvent; and (iii) reducing the TiCl.sub.4 with a reducing agent of the formulaAlR.sub.n X.sub.3-nwherein R is an alkyl group having from 1 to 18 carbon atoms, X is a halogen atom, and n is an integer such that 0

    摘要翻译: 一种制备立体有择性α-烯烃聚合催化剂的方法,其包括(i)由无水镁化合物和电子给体化合物形成固体载体; (ii)将步骤(i)中获得的固体载体与TiCl 4在惰性溶剂中的溶液接触; 和(iii)用式AlRnX 3-n的还原剂还原TiCl 4,其中R是具有1至18个碳原子的烷基,X是卤素原子,n是整数,使得0

    Copolymers of propylene and allyl alcohol
    4.
    发明授权
    Copolymers of propylene and allyl alcohol 失效
    丙烯和烯丙醇的共聚物

    公开(公告)号:US4423196A

    公开(公告)日:1983-12-27

    申请号:US321277

    申请日:1981-11-13

    CPC分类号: C08F210/00 C08F210/06

    摘要: Copolymers of (a) one or more .alpha.-olefins having the formula (A) ##STR1## wherein R is a C.sub.1 -C.sub.16 alkyl group or a phenyl group; and (b) one or more substituted .alpha.-olefins having the formula (B) ##STR2## wherein R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, and Z is an --OH, --COOH, ##STR3## in which R.sup.3 is a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, and each of R.sup.4 and R.sup.5 is a C.sub.1 -C.sub.4 alkyl group, said copolymers having from 1 to 50% by weight of the monomers of formula (B) incorporated therein in polymerized form and a melt flow index (MSI 230/5) of from 2 to 20 g/10 min. and a process for their manufacture.

    摘要翻译: (a)一种或多种具有式(A)的α-烯烃的共聚物(A)其中R是C 1 -C 16烷基或苯基; 和(b)一种或多种具有式(B)的取代的α-烯烃(B)其中R1是氢原子或甲基,R2是氢原子或C1-C4烷基,Z是 其中R 3是氢原子或C 1 -C 4烷基,R 4和R 5各自是C 1 -C 4烷基的-OH,-COOH,< IMAGE>所述共聚物具有1至50重量% 其中以聚合形式掺入的式(B)单体和2至20g / 10min的熔体流动指数(MSI 230/5)。 及其制造工艺。

    Polyene/.alpha.-olefin copolymers
    5.
    发明授权
    Polyene/.alpha.-olefin copolymers 失效
    聚烯烃/α-烯烃共聚物

    公开(公告)号:US4369291A

    公开(公告)日:1983-01-18

    申请号:US289389

    申请日:1981-08-03

    CPC分类号: C08F297/06 C08F279/02

    摘要: Copolymers or graft copolymers of from 5 to 95% by weight of .alpha.-olefins corresponding to the following general formula (A): ##STR1## wherein R.sup.1 represents alkyl having from 1 to 16 carbon atoms or phenyl; and from 5 to 95% by weight of straight-chain, branch-chain or crosslinked 1,4-polyenes, and a process for the preparation of such polymers, wherein one or more .alpha.-olefins (A) are reacted with a solid catalytic complex based on TiCl.sub.3 and aluminum compounds corresponding to the following general formula (C):Al R.sup.2.sub.n X.sub.3-n (C)wherein R.sup.2 represents C.sub.1 -C.sub.18 alkyl; X represents halogen, preferably chlorine; and 0

    摘要翻译: 对应于下列通式(A)的5至95重量%的α-烯烃的共聚物或接枝共聚物:其中R 1表示具有1至16个碳原子的烷基或苯基; 和5至95重量%的直链,支链或交联的1,4-多烯,以及制备这种聚合物的方法,其中一种或多种α-烯烃(A)与固体催化剂 基于TiCl 3和对应于以下通式(C)的铝化合物:Al R2nX3-n(C)其中R2表示C1-C18烷基; X表示卤素,优选氯; 和0