Catalyst for polymerizing .alpha.-olefins
    1.
    发明授权
    Catalyst for polymerizing .alpha.-olefins 失效
    用于聚合α-烯烃的催化剂

    公开(公告)号:US4282114A

    公开(公告)日:1981-08-04

    申请号:US116206

    申请日:1980-01-28

    IPC分类号: C08F4/02 C08F4/64 C08F10/00

    CPC分类号: C08F10/00 C08F4/022

    摘要: Disclosed is a catalyst for polymerizing .alpha.-olefins which comprises(A) a composition obtained by co-comminuting(a) a magnesium halide,(b) an organic acid ester,(c) a halogenated aliphatic or alicyclic hydrocarbon,(d) at least one ingredient selected from the group consisting of aliphatic hydrocarbons, alicyclic hydrocarbons, aromatic hydrocarbons, halogenated aromatic hydrocarbons, liquid propylene oligomers and aromatic ethers, and(e) an aluminum halide optionally added thereto and then heat-treating the resulting mixture together with titanium tetrachloride;(B) an organic aluminum compound; and(C) an organic acid ester or a complex thereof with an aluminum halide.

    摘要翻译: 公开了用于聚合α-烯烃的催化剂,其包括(A)通过共混粉碎(a)卤化镁,(b)有机酸酯,(c)卤化脂族或脂环族烃,(d)在 至少一种选自脂族烃,脂环族烃,芳族烃,卤代芳烃,液态丙烯低聚物和芳族醚的成分,和(e)任选加入的卤化铝,然后将所得混合物与钛一起热处理 四氯化碳 (B)有机铝化合物; 和(C)有机酸酯或其与卤化铝的络合物。

    Catalyst for polymerizing .alpha.-olefins
    2.
    发明授权
    Catalyst for polymerizing .alpha.-olefins 失效
    用于聚合α-烯烃的催化剂

    公开(公告)号:US4175171A

    公开(公告)日:1979-11-20

    申请号:US814690

    申请日:1977-07-11

    摘要: A catalyst for polymerizing .alpha.-olefins composed of a titanium composition formed by heating a co-comminuted mixture of a magnesium halide and a complex of an aluminum halide and a carboxylic acid ester of the formula R.sup.1 COOR.sup.2, with titanium tetra-chloride; and an organic aluminum compound of the formula AlR.sup.3 mH.sup.3 --m; and optionally added thereto at least one component selected from an alkyl aluminum halide of the formula AlR.sup.4 nX.sub.3 --n; a carboxylic acid ester of the formula R.sup.5 COOR.sup.6 ; and its complex formed with an aluminum halide; is disclosed.

    摘要翻译: 用于聚合由通过加热卤化镁和卤化铝与式R 1 COOR 2的羧酸酯的配合物的共粉碎混合物与四氯化钛形成的钛组合物组成的α-烯烃的催化剂; 和式AlR 3 mH 3-m的有机铝化合物; 并且任选地加入至少一种选自式AlR 4 nX 3-n的烷基铝卤化物的组分; 式R 5 COOR 6的羧酸酯; 其复合物与卤化铝形成; 被披露。

    Method for the production of low density copolymers of ethylene
    3.
    发明授权
    Method for the production of low density copolymers of ethylene 失效
    乙烯低密度共聚物生产方法

    公开(公告)号:US4190614A

    公开(公告)日:1980-02-26

    申请号:US784308

    申请日:1977-04-04

    申请人: Akira Ito Kenji Iwata

    发明人: Akira Ito Kenji Iwata

    摘要: In producing a low density polyethylene by a slurry copolymerization of ethylene and an .alpha.-olefin with use of a catalyst consisting of a magnesium compound-supported titanium and/or vanadium compound and an organoaluminum compound, a certain amount of ethylene is subject to a pre-polymerization in the presence of said catalyst prior to the copolymerization. Successively, the slurry copolymerization of ethylene and an .alpha.-olefin is effected in a low-boiling diluent to obtain a low density polyethylene of 0.925-0.950 in density, covering various grades in a wide range.

    摘要翻译: 在通过使用由镁化合物负载的钛和/或钒化合物和有机铝化合物组成的催化剂通过乙烯和α-烯烃的淤浆共聚制备低密度聚乙烯时,一定量的乙烯经受预 在共聚之前在所述催化剂存在下进行聚合。 接着,在低沸点稀释剂中进行乙烯和α-烯烃的淤浆共聚,得到密度为0.925-0.950的低密度聚乙烯,覆盖了宽范围内的各种等级。

    Method for polymerization of ethylene
    4.
    发明授权
    Method for polymerization of ethylene 失效
    乙烯聚合方法

    公开(公告)号:US4105847A

    公开(公告)日:1978-08-08

    申请号:US629134

    申请日:1975-11-05

    申请人: Akira Ito Kenji Iwata

    发明人: Akira Ito Kenji Iwata

    IPC分类号: C08F4/02 C08F10/02

    摘要: Ethylene is polymerized or copolymerized with an .alpha.-olefin in the presence of a catalyst consisting of(A) a co-comminuted composition of:(a) a titanium compound;(b) a magnesium halide; and(c) a siloxane polymer; and(B) an organoaluminum compound.

    摘要翻译: 在由(A)共粉碎的组合物组成的催化剂存在下,乙烯与α-烯烃聚合或共聚,

    Poly(silyleneethynylene phenyleneethynylenes), method for preparing same
and hardened product thereof
    9.
    发明授权
    Poly(silyleneethynylene phenyleneethynylenes), method for preparing same and hardened product thereof 失效
    聚(亚乙烯基亚乙烯基亚苯基乙炔基),其制备方法及其硬化物

    公开(公告)号:US5420238A

    公开(公告)日:1995-05-30

    申请号:US216549

    申请日:1994-03-23

    IPC分类号: C08G77/60

    CPC分类号: C08G77/60

    摘要: A method for preparing a highly heat-resistant and burning-resistant poly(silyleneethynylene phenyleneethynylene) having a repeated unit represented by the following structural formula (1A): ##STR1## wherein the phenylene group may be in the o-, m- or p-form, R represents a halogen atom or an alkyl group, alkoxy group, phenoxy group, alkenyl group, alkynyl group, aromatic group, disubstituted amino group or silanyl group; n is an integer ranging from 0 to 4; and R' represents a hydrogen atom, an alkyl group, alkenyl group, alkynyl group or aromatic group, a product obtained by the method and a hardened product obtained by heat-treating, at a temperature ranging from 50.degree.to 700.degree. C., the poly(silyleneethynylene phenyleneethynylene).

    摘要翻译: (1A)表示的重复单元的高耐热耐燃性聚亚乙烯基亚苯基亚乙炔基的制备方法:其中亚苯基可以在o-,m - 或p-型,R表示卤素原子或烷基,烷氧基,苯氧基,烯基,炔基,芳基,二取代氨基或硅烷基; n为0〜4的整数; R'表示氢原子,烷基,链烯基,炔基或芳族基,通过该方法得到的产物和通过在50〜700℃的温度下热处理而得到的硬化物, 聚(亚乙烯基亚乙炔基亚苯基亚乙炔基)。