Two step process for polymerizing ethylene
    1.
    发明授权
    Two step process for polymerizing ethylene 失效
    聚合乙烯的两步法

    公开(公告)号:US4357448A

    公开(公告)日:1982-11-02

    申请号:US151637

    申请日:1980-05-20

    摘要: Ethylene or a mixture of ethylene and a small amount of another .alpha.-olefin or diene is polymerized in two successive steps under different hydrogen partial pressures by polymerizing 30 to 70 wt. % of the ethylene or ethylene mixture to be polymerized in the presence of hydrogen at a molar ratio of ethylene or ethylene mixture to hydrogen of 1:1-8 in the first step and polymerizing the residual ethylene or the ethylene mixture at a molar ratio of ethylene to hydrogen of 1:0-0.3 in the second step, in the presence of the specific catalyst system comprising an organoaluminum compound (C) and a specific solid catalytic component (B) obtained by reacting a titanium or vanadium halogen-containing compound with a reaction product (A) obtained by reacting a Grignard reagent with a hydropoly-siloxane having the formula ##EQU1## (R.sup.1 represents an alkyl, aryl, aralkyl, alkoxy, or aryloxy group as a monovalent organic group; a is 0,1 or 2; b is 1, 2 or 3; and a+b.ltoreq.3)or a silicon compound containing an organic group and hydroxyl group in the presence or absence of an aluminum-alkoxide, aluminum alkoxy-halide halide or a reaction product obtained by reacting the aluminum compound with water.

    摘要翻译: 乙烯或乙烯与少量另外的α-烯烃或二烯的混合物在不同的氢分压下通过聚合30至70wt。 %的乙烯或乙烯混合物在氢气存在下以乙烯或乙烯混合物与氢气的摩尔比为1:1-8在第一步中聚合,并以残留的乙烯或乙烯混合物的摩尔比 在含有有机铝化合物(C)和特定固体催化剂组分(B)的特定催化剂体系存在下,第二步中乙烯与氢的摩尔比为1:0-0.3,使含钛或钒的含卤化合物与 通过使格氏试剂与具有式“IMAGE”的氢化聚硅氧烷反应得到的反应产物(A)(R1代表烷基,芳基,芳烷基,烷氧基或芳氧基作为一价有机基团; a为0,1或 2; b为1,2或3; a + b 3)或含有有机基团和羟基的硅化合物在存在或不存在铝 - 醇盐的情况下,烷氧基卤化铝卤化物或反应产物 通过使铝化合物与水分子反应获得 r。

    Process for producing polyethylenes
    2.
    发明授权
    Process for producing polyethylenes 失效
    生产聚乙烯的方法

    公开(公告)号:US4223118A

    公开(公告)日:1980-09-16

    申请号:US941727

    申请日:1978-09-12

    CPC分类号: C08F10/02

    摘要: A polyethylene is produced by polymerizing ethylene with or without a comonomer in the presence of a catalyst consisting of an organometallic compound and a solid catalytic component (B) obtained by reacting a titanium or vanadium halide with a reaction product (A) in the presence of one or more aluminum alkoxide having the formulaAl(OR.sup.2).sub.n X.sub.3-nwherein R.sup.2 represents a C.sub.1 -C.sub.12 alkyl group and X represents a halogen atom and 0

    摘要翻译: 在由有机金属化合物和固体催化剂组分(B)组成的催化剂存在下,通过使共聚单体或不与共聚单体聚合来制备聚乙烯,所述催化剂组分(B)在钛或卤化钒与反应产物(A) 一种或多种具有式Al(OR2)nX3-n的烷氧基铝,其中R2表示C1-C12烷基,X表示卤素原子,0

    Process for the polymerization or copolymerization of ethylene
    4.
    发明授权
    Process for the polymerization or copolymerization of ethylene 失效
    乙烯的聚合或共聚方法

    公开(公告)号:US4742132A

    公开(公告)日:1988-05-03

    申请号:US921824

    申请日:1986-10-21

    CPC分类号: C08F10/02

    摘要: A process for polymerizing or copolymerizing ethylene, characterized in that ethylene or a mixture of ethylene with other .alpha.-olefin is polymerized in the presence of a catalyst comprising:[I] a solid catalyst component (B) obtained by reacting the following three components:(a) a reaction product (A) of an organomagnesium compound with a hydropolysiloxane or a silicon compound in which organic groups and hydroxyl groups are bonded to silicon atoms,(b) a silicon compound of the formula R.sub.l.sup.1 Si(OR.sup.2).sub.m X.sub.4-(l+m), wherein R.sup.1 is a hydrogen atom or a hydrocarbon group having from 1 to 8 carbon atoms, R.sup.2 is a hydrocarbon group having from 1 to 12 carbon atoms, X is a halogen atom, l is 0, 1 or 2, and m is a number of from 0 to 4, and(c) a titanium compound of the formula Ti(OR.sup.3).sub.n X.sub.4-n, wherein R.sup.3 is a hydrocarbon group having from 1 to 12 carbon atoms, X is a halogen atom, and n is a number of 0 to 4, provided that m and n are not simultaneously 0, and when m is 0, n is 4, and[II] an organoaluminum compound.

    摘要翻译: 一种聚合或共聚乙烯的方法,其特征在于乙烯或乙烯与其它α-烯烃的混合物在催化剂存在下聚合,所述催化剂包括:[I]通过使以下三种组分反应得到的固体催化剂组分(B) (a)有机镁化合物与有机基团和羟基与硅原子键合的氢化聚硅氧烷或硅化合物的反应产物(A),(b)式R 1 Si(OR 2)m X 4 - (l + m),其中R 1是氢原子或具有1至8个碳原子的烃基,R 2是具有1至12个碳原子的烃基,X是卤素原子,l是0,1或2,以及 m为0〜4的数,(c)式Ti(OR 3)n X 4-n的钛化合物,其中,R 3为碳原子数1〜12的烃基,X为卤素原子,n为 是0〜4的数,条件是m和n不同时为0,当m为0时,n为4,[II]为器官 铝化合物。

    Process for producing polyethylene
    5.
    发明授权
    Process for producing polyethylene 失效
    生产聚乙烯的方法

    公开(公告)号:US4657996A

    公开(公告)日:1987-04-14

    申请号:US833670

    申请日:1986-02-27

    CPC分类号: C08F10/02 Y02P20/52

    摘要: A process for producing polyethylene comprises polymerizing ethylene or copolymerizing ethylene with other .alpha.-olefin in the presence of a catalyst system obtained by bringing the following components (I) to (III) in contact with one another:(I) a reaction product (B) obtained by reacting an intermediate reaction product (A) obtained by a reaction of a hydropolysiloxane with a Grignard reagent, with at least one nucleophilic reagent selected from an aldehyde, a ketone and an alcohol,(II) a transition metal compound, and(III) at least one organic aluminum compound.

    摘要翻译: 一种生产聚乙烯的方法包括在催化剂体系存在下聚合乙烯或将乙烯与其它α-烯烃共聚,所述催化剂体系通过使以下组分(I)至(III)彼此接触而获得:(I)反应产物(B )通过使通过氢化聚硅氧烷与格利雅试剂的反应获得的中间反应产物(A)与至少一种选自醛,酮和醇的亲核试剂反应获得,(II)过渡金属化合物和( III)至少一种有机铝化合物。

    Flame retardant polysulfone composition
    6.
    发明授权
    Flame retardant polysulfone composition 失效
    阻燃聚砜组合物

    公开(公告)号:US4065517A

    公开(公告)日:1977-12-27

    申请号:US676870

    申请日:1976-04-14

    IPC分类号: C08G79/04 C08L81/06 C08K5/53

    CPC分类号: C08G79/04 C08L81/06

    摘要: A polysulfone composition comprises 1 to 20 wt. % of polyphosphonate having the formula ##STR1## WHEREIN X represents Br or Cl; Y represents a C.sub.1-8 alkylidene group or sulfone group; a and bare respectively integers of 1 to 4 and n is an integer of 2 to 100.

    摘要翻译: 聚砜组合物包含1至20wt。 %具有式“IMAGE”的聚膦酸酯,其中X表示Br或Cl; Y表示C1-8亚烷基或砜基; a和1〜4的整数,n为2〜100的整数。