This invention provides a process for producing a butene-1 polymer in the presence of a catalyst obtained from a solid catalyst component (A) prepared from a magnesium compound, an electron donating compound and a titanium compound, an organoaluminum compound (B) and an electron donating compound (C), said electron donating compound (C) being at least one compound selected from the group consisting of organophosphorus compound of the following general formula(1) and heterocyclic compound of the follwoing qeneral formula(2):
. (wherein R1 and R2 each represents an alkyl, cycloalkyl or aryl group of 1-10 carbon atoms, X represents a halogen atom and m and n are real numbers which satisfy 0
本发明提供了一种在催化剂存在下生产丁烯-1聚合物的工艺,催化剂由镁化合物、电子供体化合物和钛化合物制备的固体催化剂组分(A)、有机铝化合物(B)和电子供体化合物(C)组成,所述电子供体化合物(C)是至少一种选自以下通式(1)的有机磷化合物和以下通式(2)的杂环化合物组成的化合物:
.(其中 R1 和 R2 分别代表 1-10 个碳原子的烷基、环烷基或芳基,X 代表卤素原子,m 和 n 是实数,满足 0
Polyetherimide-liquid crystal polymer blends
申请人:GENERAL ELECTRIC COMPANY
公开号:EP0278066A2
公开(公告)日:1988-08-17
Disclosed are blends of (a) a polyetherimide and (b) a liquid crystal polymer. The liquid crystal polymer is an aromatic copolyester which exhibits melt anisotropy. The blends exhibit a higher heat distortion temperature higher flexural modulus and specific gravity over the polyetherimide component alone and have a higher tensile strength than that associated with the liquid crystal polymer alone.
公开了 (a) 聚醚酰亚胺和 (b) 液晶聚合物的混合物。液晶聚合物是一种芳香族共聚聚酯,具有熔体各向异性。与单独的聚醚酰亚胺成分相比,混合物具有更高的热变形温度、更高的弯曲模量和比重,其拉伸强度也高于单独的液晶聚合物。
Process for producing polybutene-1
申请人:IDEMITSU PETROCHEMICAL CO. LTD.
公开号:EP0294767A1
公开(公告)日:1988-12-14
Disclosed is a process for producing polybutene-1 suitable to be molded into pipes and the like by vapor phase polymerization in the presence of a catalyst obtained from (A) a solid catalyst component obtained from a magnesium compound, an electron donating compound and a halide of tetravalent titanium (B) an organoaluminum compound and (C) an electron donor wherein said solid catalyst component (A) has an average particle size of 5-200µm, a geometrical standard deviation (σ g) of particle size distribution of less than 2.1 and a molar ratio of electron donating compound/magnesium of 0.01 or more and said electron donor (C) is at least one compound selected from the group consisting of a heterocyclic compound represented by the formula:
(wherein R¹, R², R³, R⁴ and R⁵ are as defined before),
an ether compound represented by the formula:
R6nC(OR⁷)4-n (2)
(wherein R⁶ and R⁷ and n are as defined before) and an organic peroxide represented by the formula:
(wherein R⁸, R⁹, R¹⁰ and R¹¹ are as defined), and
the vapor phase polymerization is carried out at a molar ratio of hydrogen/butene-1 of 0.001-0.1.
本发明公开了一种通过气相聚合生产聚丁烯-1 的工艺,该聚丁烯-1 适合在以下催化剂的存在下模塑成管道或类似物:(A) 由镁化合物、电子供体化合物和四价钛的卤化物组成的固体催化剂组分 (B) 有机铝化合物和 (C) 电子供体,其中所述固体催化剂组分 (A) 的平均粒径为 5-200µm,粒径分布的几何标准偏差 (σg)小于 2.1 且电子供体化合物/镁的摩尔比为 0.01 或更高,且所述电子供体 (C) 至少是一种选自以下组别的化合物:由式表示的杂环化合物:
(其中 R¹、R²、R³、R⁴ 和 R⁵ 如前定义)、
由以下式子表示的醚化合物
R6nC(OR⁷)4-n (2)
(其中 R⁶、R⁷ 和 n 如前定义)和由式表示的有机过氧化物:
(其中 R⁸、R⁹、R¹⁰ 和 R¹¹ 如前定义),以及
气相聚合在氢/丁烯-1 的摩尔比为 0.001-0.1 的条件下进行。
查看更多