摘要:
A method for the production of a solid titanium trichloride catalyst by the steps of preparing a titanium trichloride composition comprising a solid reduction product obtained by reducing titanium tetrachloride with an organoaluminum compound represented by the formula, R.sup.1.sub.n AlY.sub.3-n (wherein R.sup.1 is a hydrocarbon group having 1 to 18 carbon atoms; Y is a halogen atom or a hydrogen atom; and n is a number satisfying the equation, 1
摘要:
A process for producing highly stereoregular .alpha.-olefin polymers which comprises polymerizing .alpha.-olefins in the presence of a catalyst system comprising:(A) a solid catalyst obtained by contact reaction between(a) a solid product prepared by reacting an organo-magnesium compound with at least one of halogenated silicon compound (I) and halogenated aluminum compound (II) in a solvent and(b) a titanium compound having both titanium-aryloxy and titanium-halogen linkages, and(B) an organo-aluminum compound as an activating agent.
摘要:
A process for producing an .alpha.-olefin polymer which comprises polymerizing an .alpha.-olefin in the presence of a catalyst system comprising(A) a solid catalyst component obtained by steps of(i) reducing titanium tetrachloride with an organoaluminum compound represented by the general formula R.sup.1.sub.n AlY.sub.3-n, wherein R.sup.1 represents a C.sub.1 -C.sub.18 hydrocarbon group, Y represents a halogen, and n represents a number satisfying 1
摘要:
A process for producing an olefin polymer which comprises the homopolymerizing or copolymerizing an olefin in the presence of a catalyst system composed of an organoaluminum compound and a hydrocarbyloxy group-containing solid catalyst component which is prepared byreducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n, wherein R.sup.1 is a C.sub.1 -C.sub.20 hydrocarbon radical, X is halogen, and n is a number defined as 0
摘要:
A process for the production of .alpha.-olefin block copolymer particles having excellent impact resistance at low temperature and excellent molding and processing characteristics, is disclosed. The process includes a two step gas phase polymerization procedure under specific conditions in the presence of a specific catalyst system.
摘要:
A process for producing an olefin polymer which comprises the homopolymerizing or copolymerizing an olefin in the presence of a catalyst system composed of an organoaluminum compound and a hydrocarbyloxy group-containing solid catalyst component which is prepared byreducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n, wherein R.sup.1 is a C.sub.1 -C.sub.20 hydrocarbon radical, X is halogen, and n is a number defined as 0
摘要:
A catalyst system for the polymerization of olefins which comprises;(A) a hydrocarbyloxy group-containing solid catalyst component prepared by (i) reducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n wherein, R.sup.1 represents a hydrocarbon radical of 1-20 carbon atoms, X represents a halogen atom, and n represents a number satisfying 0
摘要:
A catalyst system for the polymerization of olefins comprising:(A) a solid catalyst component containing hydrocarbyloxy groups obtained by reacting a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.3-n (wherein R.sup.1 is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom, and n is a number defined by 0
摘要翻译:一种用于烯烃聚合的催化剂体系,包括:(A)含有通式为Ti(OR 1)n X 3-n表示的钛化合物(其中R 1为具有1至20个碳原子的烃基)的烃氧基的固体催化剂组分 原子,X为卤素原子,n为0≤n≤3)与醚化合物和四氯化钛在卤化镁存在下呈淤浆状态,(B)有机铝化合物。
摘要:
A catalyst system comprising(A) a halogen compound of trivalent titanium,(B) an organo-aluminum compound of the formula,R.sub.3-(m+n) AlY.sub.m X.sub.n whereinY is a group having at least one of oxygen, nitrogen, sulfur and phosphorus atoms linked to the aluminum atom, R is a hydrogen atom, an alkyl having 1 to 18 carbon atoms, an alkenyl having 2 to 18 carbon atoms, a cycloalkyl having 3 to 18 carbon atoms, an aryl having 6 to 18 carbon atoms, or an aralkyl having 7 to 18 carbon atoms,X is a halogen atom, and m and n are numbers satisfying the equations, 0
摘要:
A process for producing a solid titanium trichloride catalyst which comprisesat a temperature of -40.degree. C. to 40.degree. C. mixing titanium tetrachloride with an organo-aluminum compound of the formula (I):AlR.sub.n X.sub.3-n (I) wherein R has up to 10 carbon atoms and is an aliphatic hydrocarbon group which may be straight chain, branched chain or cyclic, or an aromatic hydrocarbon group; X is a halogen atom or a hydrogen atom; and n is a number satisfying the relation, 1.5.ltoreq.n.ltoreq.3; in the presence of an ether compound of the formula (II):R.sup.2 OR.sup.3 (II) wherein R.sup.2 and R.sup.3, which may be the same or different, each is an alkyl group, an aralkyl group or an alkenyl group, each having up to 10 carbon atoms, to reduce the titanium tetrachloride; maintaining the mixed solution at a temperature of 10.degree. C. to 50.degree. C. thereby performing the reduction;at the time when the reduction reaction proceeds at least 90%, adding iodine to the resulting liquid titanium trichloride product;maintaining the resulting mixture at a temperature of about 30.degree. C. to about 150.degree. C. after the addition thereby precipitating solid titanium trichloride; andthen separating the solid titanium trichloride.
摘要翻译:一种制备固体三氯化钛催化剂的方法,其包括在-40℃至40℃的温度下,将四氯化钛与式(I)的有机铝化合物:其中R具有的AlRnX 3-n(I) 最多10个碳原子,并且是可以是直链,支链或环状的脂族烃基或芳族烃基; X是卤素原子或氢原子; 并且n是满足关系式的数,1.5 i = 3; 在式(II)的醚化合物的存在下:R 2 OR 3(II)其中R 2和R 3可以相同或不同,各自为烷基,芳烷基或烯基,每个具有至多10个 碳原子,以减少四氯化钛; 将混合溶液保持在10℃至50℃的温度,从而进行还原; 当还原反应进行至少90%时,向得到的液体三氯化钛产物中加入碘; 在加入后将所得混合物保持在约30℃至约150℃的温度,由此沉淀出固体三氯化钛; 然后分离固体三氯化钛。