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    • 5. 发明申请
    • PROPYLENE-ETHYLENE COPOLYMER COMPOSITIONS AND PROCESS FOR THE PRODUCTION THEREOF
    • 丙烯 - 乙烯共聚物组合物及其生产方法
    • WO1997008218A1
    • 1997-03-06
    • PCT/JP1996002449
    • 1996-08-30
    • CHISSO CORPORATIONTOYOTA JIDOSHA KABUSHIKI KAISHAHAYASHIDA, TeruakiGIMA, ShineiHATADA, KouichiKOJIMA, OsamuSHIMIZU, KenNAKAJIMA, HirokazuNOMURA, TakaoKANOME, YoshihiroNISHIO, Takeyoshi
    • CHISSO CORPORATIONTOYOTA JIDOSHA KABUSHIKI KAISHA
    • C08F297/08
    • C08F297/083C08F210/16C08F2/001C08F210/06C08F2500/12C08F2500/08
    • Propylene-ethylene copolymer compositions excellent in moldability and well-balanced among rigidity, tenacity, impact resistance, and so on. Specifically, a propylene-ethylene copolymer composition having a melt flow rate of 10 to 300 g/10 min, which is prepared through the polymerization step (I) of polymerizing propylene in the presence of a catalyst for highly stereoregular polymerization and hydrogen to produce 60 to 95 % by weight (based on the whole polymer) of a propylene polymer having a melt flow rate (ASTM D-1238) of 100 to 1000 g/10 min and a ratio (Cf) of the integrated amount of a propylene polymer dissolved in o-dichlorobenzene over a temperature range of lower than 112 DEG C to that over a temperature range of 112 DEG C and above of 0.5 or below as determined by measuring the amounts of the propylene polymers dissolved in o-dichlorobenzene at each temperature while raising the temperature of o-dichlorobenzene continuously or stepwise, the ratio (Cf) being an indication of the intramolecular stereoregularity and molecular weight distribution of the polymer, and the polymerization step (II) of adding propylene and ethylene to the propylene polymer produced in the step (I) in such amounts that the ethylene content falls within a range of 30 to 80 % by weight and conducting polymerization to produce 5 to 40 % by weight (based on the whole polymer) of an ethylene-propylene copolymer; and another propylene-ethylene copolymer composition comprising the above composition and an alpha -crystal and/or beta -crystal nucleating agent.
    • 丙烯 - 乙烯共聚物组合物的成型性优异,刚性,韧性,耐冲击性等均衡。 具体而言,通过聚合工序(I)制备熔体流动速率为10〜300g / 10min的丙烯 - 乙烯共聚物组合物,该聚合步骤(I)在高度立构规整聚合催化剂和氢气存在下聚合丙烯,生成60 至95重量%(基于整个聚合物)具有100至1000g / 10min的熔体流动速率(ASTM D-1238)的丙烯聚合物和溶解的丙烯聚合物的一体化量的比率(Cf) 在低于112℃的温度范围内,在112℃以上且在0.5以下的温度范围内的邻二氯苯,通过在升温时测定在各温度下溶解在邻二氯苯中的丙烯聚合物的量来测定 连续或逐步的邻二氯苯的温度,比率(Cf)是聚合物的分子内立构规整性和分子量分布的指示,以及加入丙烯的聚合步骤(II) 和乙烯加入到步骤(I)中制备的丙烯聚合物中,其量使得乙烯含量在30至80重量%的范围内并进行聚合以产生5至40重量%(基于全部聚合物) 乙烯 - 丙烯共聚物; 和另一种包含上述组合物的丙烯 - 乙烯共聚物组合物和α-结晶和/或β-晶体成核剂。
    • 6. 发明申请
    • POLYPROPYLENE COMPOSITION
    • 聚丙烯组合物
    • WO1995001398A1
    • 1995-01-12
    • PCT/JP1994001064
    • 1994-06-30
    • MITSUI PETROCHEMICAL INDUSTRIES, LTD.TOYOTA JIDOSHA KABUSHIKI KAISHANOMURA, TakaoNISHIO, TakeyoshiHASHIMOTO, MikioMORIYA, Satoru
    • MITSUI PETROCHEMICAL INDUSTRIES, LTD.TOYOTA JIDOSHA KABUSHIKI KAISHA
    • C08L23/10
    • C08L23/12C08L21/00C08L23/0815C08L23/16C08L53/00C08L2666/06
    • A polypropylene composition comprising polypropylene and a rubber component and having such characteristics that: (i) the melt flow rate (MFR: 230 DEG C, under 2.16 kg load) determined according to ASTM D1238 is 8 g/10 min or above; (ii) the flexural modulus (FM) determined according to ASTM D790 is 20,000 kg/cm or above; (iii) the Izod impact strength (IZ) determined according to ASTM D256 is 20 kg.cm/cm or above; (iv) the heat deformation temperature (HDT) determined according to ASTM D648 is 135 DEG C or above; (v) the dimensions of a polypropylene microcrystal in an injection molding of the composition as determined by wide-angle X-ray diffractometry and X-ray small-angle scattering are 5-20 nm, 5-20 nm and 5 nm or above, respectively, in the directions of c-axis, a-axis and b-axis; and (vi) the rubber component is present in an injection molding of the composition as a continuous phase around the polypropylene microcrystal in the direction of injection and the direction perpendicular thereto, and the average thickness of the continuous phase ranges from 0.5 to 3 nm. This composition is excellent not only in rigidity and heat resistance but also in impact resistance and toughness.
    • 一种聚丙烯组合物,其包含聚丙烯和橡胶组分,具有以下特征:(i)根据ASTM D1238测定的熔体流动速率(MFR:230℃,2.16kg负荷)为8g / 10min或更高; (ii)根据ASTM D790测定的挠曲模量(FM)为20,000kg / cm 2以上; (iii)根据ASTM D256测定的悬臂梁式冲击强度(IZ)为20kg·cm / cm以上; (iv)根据ASTM D648测定的热变形温度(HDT)为135℃以上; (v)通过广角X射线衍射法和X射线小角度散射测定的组合物注射成型中的聚丙烯微晶的尺寸为5-20nm,5-20nm和5nm以上, 分别沿c轴,a轴和b轴方向; 和(vi)橡胶组分以喷射方向和与其垂直的方向在聚丙烯微晶体周围作为连续相的注射成型存在,连续相的平均厚度为0.5-3nm。 该组合物不仅具有刚性和耐热性,而且在耐冲击性和韧性方面也是优异的。
    • 9. 发明专利
    • DOUBLE-SURFACE HANGER FOR DISK
    • JP2000185790A
    • 2000-07-04
    • JP36174998
    • 1998-12-21
    • NOMURA TAKAO
    • NOMURA TAKAO
    • G11B23/03B65D85/57
    • PROBLEM TO BE SOLVED: To provide one horizontal shaft at a front surface side of one supporting column, put each of a plurality of floppy disks into a transparent bag-like case having an opening, store them while being hang, arrange another horizontal shaft at a rear surface side of the supporting column, store a plurality of floppy disks through the central hole of a compact disk, cover them with a transparent outer frame with released outer side surface, make the supporting column integral with a fixed table, store preferentially the floppy disk of high frequency in use and further facilitate a retrieving operation for the disk by a simple structure. SOLUTION: Each of one of horizontal shafts 4, 7 is fixed to a front surface side and a rear surface side of one vertical supporting column 6 through bearings 5, 8. A 3.5-inch floppy disk 10 is stored at the horizontal shaft 4 at the front surface side through openings of a plurality of transparent bag-like case 1. A plurality of compact disks 11 are hung at the rear surface side horizontal shaft 7 through their central holes so as to enable their storing to be carried out, resulting in that their outside portions are covered by the transparent outer frame 12 with its side surface being released and they are integrally formed with the base 9.