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    • 13. 发明授权
    • Propylene homopolymer
    • 丙烯均聚物
    • US06090903A
    • 2000-07-18
    • US952962
    • 1997-12-04
    • Takuo KataokaMasayoshi Saito
    • Takuo KataokaMasayoshi Saito
    • C08F4/646C08F4/655C08F4/656C08F4/658C08F110/06
    • C08F110/06C08F4/6465C08F4/6555C08F4/6567
    • A propylene homopolymer having a high stereo-regularity and an excellent processability during sheet or film formation, characterized in that it exhibits a melt flow rate (MFR) of from 0.1 to 20 g/10 min., a xylene-soluble component content of not more than 6% by weight and an isoblock content [IB] of at least 3 mol % as determined by the following equation (1) from Pmmmr, Pmmrr and Pmrrm, which are absorption intensities attributed to isoblock chain in xylene-insoluble component by .sup.13 C-NMR spectrum:[IB]=[Pmmmr]+[Pmmrr]+[Pmrrm] (1)wherein [Pmmmr], [Pmmrr] and [Pmrrm] are the relative intensity ratio (mol %) of Pmmmr, Pmmrr and Pmrrm, respectively, which are absorption intensities attributed to isoblock chain.
    • PCT No.PCT / JP97 / 01097 Sec。 371 1997年12月4日第 102(e)日期1997年12月4日PCT 1997年3月31日PCT公布。 公开号WO97 / 38030 日期1997年10月16日一种丙烯均聚物,其具有高的立体规整性,并且在片或膜形成过程中具有优异的加工性能,其特征在于其熔体流动速率(MFR)为0.1至20g / 10min, 由Pmmmr,Pmmrr和Pmrrm的下列等式(1)确定的可溶组分含量不超过6重量%,并且具有至少3摩尔%的异丁烯含量[IB]为归因于二甲苯中的异链段的吸收强度 通过13 C-NMR光谱分析不溶成分:[IB] = [Pmmmr] + [Pmmrr] + [Pmrrm](1)其中[Pmmmr],[Pmmrr]和[Pmrrm]是Pmmmr的相对强度比(mol%) ,Pmmrr和Pmrrm,分别是归因于异链段的吸收强度。
    • 14. 发明授权
    • Polymerization catalyst and process for preparing an ethylene polymer
    • 聚合催化剂和制备乙烯聚合物的方法
    • US6080828A
    • 2000-06-27
    • US310918
    • 1999-05-13
    • Shin-ichi KojohMamoru Kioka
    • Shin-ichi KojohMamoru Kioka
    • C08F4/658C08F4/651C08F4/655C08F8/00C08F10/02C08F110/02
    • C08F10/02C08F110/02Y10S526/904
    • An ethylene polymer having small values of Mw/Mn and Mz/Mw, a small proportion of long-chain branches, a high melt tension and a high swell ratio, and a process for preparing the ethylene polymer are disclosed. A solid titanium catalyst component obtained by initially bringing a solid titanium composite which is obtained by the contact of a solid magnesium aluminum composite containing magnesium, halogen, aluminum, and an alkoxy group of 6 or more carbon atoms and/or alcohol of 6 or more carbon atoms with a tetravalent titanium compound into contact with an organometallic compound, and then bringing the resulting product into contact with oxygen is further disclosed. An ethylene polymerization catalyst comprising the above catalyst component and an organometallic compound catalyst component is furthermore disclosed. Therefore, the ethylene polymer is excellent in moldability, and a molded article obtained therefrom is excellent in rigidity and impact resistance and free from poor appearance.
    • 公开了具有小的Mw / Mn值和Mz / Mw值,小分支长支链,高熔体张力和高溶胀比的乙烯聚合物,以及制备乙烯聚合物的方法。 一种固体钛催化剂组分,其通过首先将含有6个或更多个碳原子和/或6个或更多个碳原子的烷基的固体镁铝复合物与含有镁,卤素,铝的固体镁铝复合物接触而获得的固体钛复合物 碳原子与四价钛化合物与有机金属化合物接触,然后使所得产物与氧接触。 还公开了包含上述催化剂组分和有机金属化合物催化剂组分的乙烯聚合催化剂。 因此,乙烯聚合物的成型性优异,其得到的成型体的刚性和耐冲击性优异,外观不良。
    • 19. 发明授权
    • Process for the production of polypropylene
    • 聚丙烯生产工艺
    • US6005049A
    • 1999-12-21
    • US94477
    • 1993-07-19
    • David Merrill RebhanDavid Albin Wibbenmeyer
    • David Merrill RebhanDavid Albin Wibbenmeyer
    • C08F4/658C08F2/34C08F4/60C08F10/00C08F10/06C08F110/06
    • C08F110/06
    • A process for the production of polypropylene comprising continuously contacting liquid propylene or a mixture comprising liquid propylene and one or more other alpha-olefins in one or more reaction zones, under gas phase polymerization conditions, with a catalyst system comprising (i) a solid particulate catalyst precursor, which includes magnesium; titanium; a halogen which is chlorine, bromine, or iodine, or mixtures thereof; and, as an inside electron donor, a carboxylic acid ester; (ii) a hydrocarbylaluminum cocatalyst; and (iii) as an outside electron donor, a silicon compound containing at least one silicon-oxygen-carbon linkage, the particles of precursor being carried into the reaction zone(s) via a portion of the liquid propylene, the flow rate of said portion having a Reynolds number greater than about 15,000.
    • 一种用于生产聚丙烯的方法,其包括在气相聚合条件下,在一个或多个反应区中将液体丙烯或包含液态丙烯和一种或多种其它α-烯烃的混合物与催化剂体系连续接触,所述催化剂体系包含(i)固体颗粒 催化剂前体,其包括镁; 钛; 氯,溴或碘的卤素,或其混合物; 和作为内电子供体的羧酸酯; (ii)烃基铝助催化剂; 和(iii)作为外部电子供体,含有至少一个硅 - 氧 - 碳键的硅化合物,前体颗粒经由液体丙烯的一部分被运送到反应区中,所述的 雷诺数大于约15,000的部分。
    • 20. 发明授权
    • Olefin polymerization catalyst
    • 烯烃聚合催化剂
    • US5990034A
    • 1999-11-23
    • US986183
    • 1997-12-05
    • Takashi Nozaki
    • Takashi Nozaki
    • C08F4/02C08F4/60C08F4/658C08F10/00C08F110/02C08F210/16B01J31/00B01J37/00
    • C08F10/00C08F110/02C08F210/16
    • An olefin polymerization catalyst comprising (A) a solid catalyst component and (B) an organometallic compound component. The solid catalyst component (A) is prepared by a process comprising the steps of:(I) obtaining a solid (A-1) by reacting:(i) an organomagnesium component soluble in a hydrocarbon solvent and represented by the formula (M.sup.1).sub..alpha. (Mg).sub..beta. (R.sup.1).sub.p (R.sup.2).sub.q (OR.sup.3).sub.r ; and(ii) an Si--H bond-containing chlorosilane compound represented by the formula: H.sub.a SiCl.sub.b R.sup.4.sub.4-(a+b), in a ratio of from 0.01 to 100 mol (ii) per mol (i);(II) reacting the solid (A-1) with an alcohol (A-2) in a ratio of from 0.05 to 20 mol of the alcohol per mol of C--Mg bonds contained in the solid (A-1), to form a reaction product; and(III) reacting the reaction product with a titanium compound (A-4). The solid catalyst component (A) is adjusted to have an alkoxy group/titanium molar ratio of 2.4 or lower and an alkoxy group/magnesium molar ratio of 0.15 or lower.
    • 一种烯烃聚合催化剂,其包含(A)固体催化剂组分和(B)有机金属化合物组分。 固体催化剂组分(A)通过包括以下步骤的方法制备:(I)通过使以下物质反应获得固体(A-1):(i)可溶于烃溶剂并由式(M1)表示的有机镁组分 α(Mg)β(R1)p(R2)q(OR3)r; 和(ii)由式IIaSiClbR44-(a + b)表示的含Si-H键的氯代硅烷化合物,其比例为0.01至100摩尔(ⅱ)/摩尔(i); (II)使固体(A-1)与醇(A-2)按每摩尔固体(A-1)中所含的C-Mg键0.05至20摩尔醇的比例反应,形成 反应产物; 和(III)使反应产物与钛化合物(A-4)反应。 将固体催化剂组分(A)调节为烷氧基/钛摩尔比为2.4或更低,烷氧基/镁的摩尔比为0.15或更低。