Abstract:
IN THE PROCESS FOR POLYMERIZING ETHYLENE OR COPOLYMERIZING ETHYLENE WITH A COMONOMER SELECTED FROM THE GROUP CONSISTING OF 1-OLEFINES HAVING FROM 3 TO 8 CARBON ATOMS AND DIOLEFINES HAVING FROM 4 TO 10 CARBON ATOMS, IN AN INERT SOLVENT IN THE PRESENCE OF A CATALYST COMPRISING A TITAMIUM OR VANADIUM HALOGEN COMPOUND BONDED ONTO THE SURFACE OF INORGANC SOLID PARTICLES, AND AN ORGANOALUMINUM COMPOUND OR A DIALKYL ZINC; AN IMPROVEMENT WHEREIN SAID INORGANIC SOLID PARTICLES ARE PARTICLES OF A SYNTHETIC DOUBLE OXIDE OF MAGNESIUM AND ALUMINUM, AND SAID SYNTHETIC DOUBLE OXIDE HAS THE ATOMIC RADIO OF MG/AL IN THE RANGE OF FROM 0.02 TO 100.
Abstract:
A PROCESS FOR POLYMERIZING OR COPOLYMERIZING OLEFINS IN THE PRESENCE OF A CATALYST CONSISTING OF (A) A TRANSITION METAL COMPONENT CHEMICALLY BOUND AND SUPPORTED ON THE SURFACE OF IN ORGANIC SOLID PARTICLES, OBTAINED BY TREATING SOLID PARTICLES OF MAGNESIUM CARBONATE WITH AN ELECTRON DONOR WHICH IS LIQUID OR GASEOUS UNDER THE TREATING CONDITIONS, THE AMOUNT OF SAID ELECTRON DONOR BEING PREFERABLY AT LEAST 0.01 MMOL PER GRAM OF SOLID PARTICLE OF MAGNESIUM CARBONATE, AND A TRANSITION METAL COMPOUND WHICH IS SELECTED FROM THE GROUP CONSISTING OF HALOGEN COMPOUNDS OF TITANIUM AND VANADIUM, THE AMOUNT OF SAID TRANSITION METAL COMPOUND BEING PREFERABLY SUCH THAT THE SUPPORTED AMOUNT OF SAID COMPOUND IS 0.1-3 MMOLES PER GRAM OF SAID SOLID PARTICLES OF MAGNESIUM CARBONATE; AND, (B) AN ORGANO-METALLIC COMPOUND, PREFERABLY IN AN AMOUNT OF 0.01-50 MMOLS PER LITER OF A POLYMERIZATION SOLVENT.
Abstract:
A PROCESS FOR POLYMERIZING AND/OR COPOLYMERIZING OLEFINS BY USING AN IMPROVED CATALYST CONSISTING OF A TRANSITION METAL COMPOUND SUPPORTED ON ELECTRONDONOR-PRETREATED INORGANIC SOLID PARTICLES TE TRANSITION METAL COMPOUND BEING A COMPONENT OF A ZIEGLER-TYPE CATALYST, AND AN ORGANOMETALLIC COMPOUND, WHEREBY THE POLYMERIZATION ACTIVITY OF THE CATALYST PER UNIT WEIGHT BOTH OF THE TRANSITION METAL AND ORGANOMETALLIC COMPONENT REMARKABLY INCREASES, THUS MAKING IT POSSIBLE TO REDUCE AN AMOUNT OF A CARRIER WHCH REMAINS IN THE RESULTANT POLYMER CAUSING INCREASED ASH CONTENT, AND ALSO POSSIBLE TO EASILY CONTROL THE MELT-INDEX OF THE RESULTANT POLYMER.
Abstract translation:1,271,411。 烯烃聚合催化剂制备。 三井石油化工有限公司1969年7月31日[1968年8月1日; 1968年8月5日; 1968年12月30日],第38572/69号。 标题C3P。 通过(A)在(II)电子给体中,(A)在基本不存在水的情况下处理(I)Mg,Ca,Zn,Cr,Mn,Fe,Co或Ni二卤化物的固体颗粒,得到烯烃聚合催化剂, 是一种液体或气体(i)羧酸或其酯,(ii)醚,(iii)酮,(iv)醛,(v)醇,(vi)酰卤,(vii)腈 ,(viii)胺,(ix)膦或(x),可能形成配位络合物,(B)用Ti(IV),V(IV)或V(V)的卤素化合物加热经处理的颗粒至 将卤素化合物键合到颗粒上,(C)将来自(B)的颗粒与铝或锌的有机金属化合物混合。 来自步骤(A)的产物可以通过将烃或卤代烃加入到脂族醇中的产物溶液中作为沉淀物获得。 过量的供体化合物可用作催化剂的分子量调节剂组分; 或者可以有利地包括氢。 在非常多的实施例中,乙烯,丙烯,乙烯 - 丙烯和乙烯 - 丁烯-1在(A)(I)的存在下聚合。 MgCl 2,MgBr 2,MgI 2及其Mn对应物,(A)(II)各种类别的宽范围,(B),例如 TiCl 4,VOCl 3,VCl 4,TiBr 4,Ti(OC 2 H 5)Cl 3和Ti(O-n-C 4 H 9)2 Cl 2和(C) Al(C 2 H 5)3,Al(C 2 H 5)2 Br,(C 2 H 5 O)-AlC 2 H 5 Cl和(C 2 H 5)2 Zn。
Abstract:
This invention relates to propylene block copolymer which has excellent mechanical strength, esp. at low temp.. Total preparing process is composed of two steps. In the first step, propylene containing 0-5 mole% of other olefin is polymerized. The first step catalyst is composed of solid titanium catalyst, organic aluminium compd. and organo silicon compd.. In the second step, propylene, ethylene and other olefin are polymerized to form a copolymer with first step product. This process produces propylene block copolymer in high catalytic efficiency.
Abstract:
Olefins are (copolymerised opt. with dienes using a catalyst system comprising (A) a solid Ti cpd. contg. Mg, Ti, a halogen and an ester from polycarboxylic acid esters and polyhydroxy cpd. esters, (B) an organometallic cpd. of a Gp. (I) to (III) metals and (C) an organosilicon cpd. contg. an Si-O-C or an Si-N-C bond. Component(A) is prepd. by contacting a liq. hydrocarbon soln. (i) of a Mg cpd. with (ii) a Ti cpd. in the liq. state to form a solid prod. or by prep.g. first a liq. hydrocarbon soln. of the Mg cpd. (i) and the Ti cpd. (ii), then forming a solid prod, from that soln., the reaction to form the solid prod. being effected in presence of (D) an electron donor, contacting the latter with (E) an ester comprising polycarboxylic acid esters and polyhydroxy esters.
Abstract:
Blends of polypropylene(I) 100, random ethylene-propene copolymer(II) contg. 30-85 mol.% propens(III) units and 10 % of boiling cyclohexane-sol. fractions and having microisotacticity (based on III traid)>0.8 1-3, and prolyethylene 0-30 parts have good flexural modulus and impact strength. A blend of 100 parts I and 17.6 parts 39:61 II has melt index 9.0, flexural modulus 12.5x103 kg/cm2, falling-dart impact strength at 0≦̸C 190 kg-cm, and gloss 72%.