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    • 92. 发明授权
    • Random 1-butene/ethylene copolymer
    • 随机1-丁烯/乙烯共聚物
    • US5336747A
    • 1994-08-09
    • US961854
    • 1992-10-16
    • Masaki KohyamaTakeshi MuranakaKunisuke FukuiNorio Kashiwa
    • Masaki KohyamaTakeshi MuranakaKunisuke FukuiNorio Kashiwa
    • C08F210/08C08F210/16
    • C08F210/08
    • A highly crystalline semi-rigid random 1-butene/ethylene copolymer consisting of 1-butene and ethylene, said copolymer having the following characteristics (A) to (K);(A) it consists of 99 to 90 mole % of the 1-butene component and 1 to 10 mole % of the ethylene component,(B) it has an intrinsic viscosity (.eta.), measured in decalin at 130.degree. C., of from 0.5 to 6 dl/g,(C) it has a DSC melding point (Tm) measured by a differential scanning calorimeter, of from 100.degree. to 120.degree. C.,(D) it has a crystallinity, measured by X-ray diffractometry, of from 20 to 58%,(E) the amount (W.sub.1 in % by weight) of that portion of it which is soluble in boiling methyl acetate is not more than 2%,(F) the amount (W.sub.2 in % by weight) of that portion of it which is soluble in a 1:1 by volume mixture of acetone and n-decane at 10.degree. C. is less than 5 .times. (.eta.).sup.-1.2,(G) it has a yield strength of 30 to 180 kg/cm.sup.2,(H) it has a tensile strength at break of 200 to 800 kg/cm.sup.2,(I) it has an elongation at break of from 350 to 800%,(J) it has a torsional rigidity of 200 to 2000 kg/cm.sup.2 and(K) it has a Young's modulus of 400 to 4000 kg/cm.sup.2.
    • 由1-丁烯和乙烯组成的高结晶半刚性无规1-丁烯/乙烯共聚物,所述共聚物具有以下特征(A)至(K); (A)由99〜90摩尔%的1-丁烯成分和1〜10摩尔%的乙烯成分组成,(B)其在130℃的萘烷中测定的特性粘度(η)为 (C)通过差示扫描量热计测得的DSC熔点(Tm)为100〜120℃,(D)具有通过X射线测定的结晶度 衍生物为20〜58%(E)可溶于沸腾乙酸甲酯的部分的量(W1重量%)为2%以下(F)量(W 2以%计, 重量)可溶于丙酮和正癸烷的1:1体积比的混合物在10℃下的该部分小于5×(eta)-1.2(G),其屈服强度为30 (H),断裂时的拉伸强度为200〜800kg / cm 2,(I)断裂伸长率为350〜800%,(J)扭转刚性为200 至2000kg / cm 2,(K),其杨氏模量为400〜4000kg / cm 2。
    • 97. 发明授权
    • Process for producing olefin polymers or copolymers and catalyst
components used therefor
    • 用于生产烯烃聚合物或共聚物和催化剂组分的方法
    • US4952649A
    • 1990-08-28
    • US169171
    • 1988-03-11
    • Mamoru KiokaNorio Kashiwa
    • Mamoru KiokaNorio Kashiwa
    • C08F4/00B01J31/14B01J37/04C08F4/02C08F4/06C08F4/10C08F4/12C08F4/16C08F4/60C08F4/64C08F4/654C08F4/658C08F10/00C08F10/04
    • C08F10/00Y10S526/904Y10S526/909
    • A solid titanium catalyst component (A) of a catalyst system useful in the polymerization of olefins or copolymerization of two or more olefins or one or more olefins and a diene is prepared by contacting a liquid hydrocarbon solution of (i) a magnesium compound, such as magnesium chloride, with (ii) a liquid titanium compound, such as TiCl.sub.4, or a solution of a titanium compound in a hydrocarbon solvent, to form a solid product. The solid product is formed in the presence of (D) an electron donor, e.g. methyl formate, acetic acid, acetic anhydride, acetone, methyl ether, butyl Cellosolve, dimethyl carbonate, methyl silicate. The solid product is also contacted with a polycarboxylic acid ester, e.g. diethyl methylsuccinate. The polymerization or copolymerization of the olefin is carried out in the presence of the solid titanium catalyst (A) and (B) an organometallic compound of a Group I to III metal and (C) an organic silicon compound having an Si--O--C bond. Granular or spherical polyethylene, polypropylene, poly(butene-1), poly(4-methylpentene-1), etc. are produced in high yield, with good flowability, high bulk density, and narrow particle size distribution. The polymers can be produced over a wide range of melt index values without reduction in stereospecificity. Catalyst activity is retained with passage of time.
    • 通过使(ⅰ)镁化合物的液体烃溶液(例如镁)与其它烯烃和二烯烃的液体烃溶液接触,制备可用于烯烃聚合或两种或多种烯烃或一种或多种烯烃和二烯的共聚合的催化剂体系的固体钛催化剂组分(A) 与(ii)液体钛化合物如TiCl 4或钛化合物在烃溶剂中的溶液形成固体产物。 在(D)电子给体的存在下形成固体产物,例如 甲酸甲酯,乙酸,乙酸酐,丙酮,甲基醚,丁基溶纤剂,碳酸二甲酯,硅酸甲酯。 固体产物也与多元羧酸酯例如, 甲基琥珀酸二乙酯 烯烃的聚合或共聚在固体钛催化剂(A)和(B)I至III族金属的有机金属化合物和(C)具有Si-O-C键的有机硅化合物的存在下进行。 以高产率,良好的流动性,高堆积密度和窄的粒度分布产生颗粒或球形聚乙烯,聚丙烯,聚(丁烯-1),聚(4-甲基戊烯-1)等。 聚合物可以在宽范围的熔体指数值下生产而不降低立体定向性。 催化剂活性随着时间的推移而保持。