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    • 6. 发明授权
    • Propylene homopolymer and propylene copolymer
    • 丙烯均聚物和丙烯共聚物
    • US06794476B2
    • 2004-09-21
    • US10070442
    • 2002-03-19
    • Shuji MachidaTakashi SaekiTomio Tatsumi
    • Shuji MachidaTakashi SaekiTomio Tatsumi
    • C08F11006
    • C08F110/06C08F210/06C08L23/02C08L23/10C08L23/12C08L2666/04C08F2500/11C08F2500/12
    • Provided are a propylene homopolymer in which a melt tension (MT), a Z average molecular weight (Mz) and a melt index (MI) (g/10 minutes) are specifically related and in which a difference in eluting temperatures and a maximum eluting temperature in programmed temperature fractional chromatography and a propylene copolymer in which a comonomer is specific &agr;-olefin and a content thereof falls in a specific range and in which a melt tension (MT), a Z average molecular weight (Mz) and a melt index (MI) (g/10 minutes) are specifically related. The propylene homopolymer or the propylene copolymer of the present invention has physical properties equivalent to or not lower than those of conventional propylene polymers, and it can be controlled in a melt tension and is suited to foaming molding, sheet molding and blow molding. Further, it is excellent in melt-processing characteristics, molding stability and a recycling property and can be applied to molding methods which are restricted in use in conventional propylene polymers, for example, large size blow molding and extrusion foaming molding.
    • 提供了其中熔体张力(MT),Z平均分子量(Mz)和熔体指数(MI)(g / 10分钟)特别相关的丙烯均聚物,其中洗脱温度和最大洗脱 程序温度分数色谱中的温度和丙烯共聚物,其中共聚单体是特定α-烯烃,其含量在特定范围内,其中熔体张力(MT),Z平均分子量(Mz)和熔体指数 (MI)(g / 10分钟)具体相关。 本发明的丙烯均聚物或丙烯共聚物具有与常规丙烯聚合物相同或不低于其特性的物理性质,并且可以以熔体张力控制,并且适于发泡成型,片状成型和吹塑。 此外,其熔融加工特性,成型稳定性和再循环性优异,可用于常规丙烯聚合物中使用的成型方法,例如大型吹塑和挤出发泡成型。
    • 7. 发明授权
    • Olefin copolymer and process for preparing same
    • 烯烃共聚物及其制备方法
    • US5608009A
    • 1997-03-04
    • US424384
    • 1995-04-28
    • Shuji MachidaHaruo ShikumaToshinori TazakiTomio TatsumiShinichi Kurokawa
    • Shuji MachidaHaruo ShikumaToshinori TazakiTomio TatsumiShinichi Kurokawa
    • C08F8/04C08F210/00C08F210/02C08F210/06C08F210/16C08F210/18C08F255/00C08F255/02C08F255/08C08F279/02
    • C08F255/00C08F210/00C08F210/02C08F210/06C08F210/18C08F8/04C08F210/16
    • There are herein disclosed an olefin copolymer which comprises an olefin unit and a diolefin unit and in which a weight-average molecular weight is in the range of 200 to 800,000, the content of the diolefin unit is in the range of 0.002 to 30 mol%, and a ratio TUS/DOU between the total content of unsaturated groups observed in a molecular chain (TUS mol%) and the content of the diolefin unit (DOU mol%) is in the range of 0.001 to 200; an olefin graft copolymer obtained by the graft polymerization of this olefin copolymer and an olefin; a hydrogenated olefin copolymer and olefin graft copolymer thereof; and a process for preparing these copolymers.These olefin copolymers are excellent in molding/working properties and have a good thermal stability, transparency and uniformity. Therefore, they are useful as a high-performance VLDPE, LDPE, L-LDPE and HDPE, and further useful as a novel branched propylene polymer, a thermoplastic elastomer, a compatibilizing agent for other resins, and the like.
    • PCT No.PCT / JP93 / 01556 Sec。 371日期:1995年4月28日 102(e)日期1995年4月28日PCT提交1993年10月28日PCT公布。 公开号WO94 / 10216 PCT 日期1994年5月11日本文公开了一种烯烃共聚物,其包含烯烃单元和二烯烃单元,其中重均分子量在200至800,000的范围内,二烯烃单元的含量在0.002 至30摩尔%,在分子链中观察到的不饱和基团的总含量(TUS摩尔%)与二烯烃单元的含量(D摩尔%)之间的比TUS / DOU在0.001〜200的范围内; 通过该烯烃共聚物和烯烃的接枝聚合得到的烯烃接枝共聚物; 氢化烯烃共聚物及其烯烃接枝共聚物; 以及这些共聚物的制备方法。 这些烯烃共聚物的成型/加工性能优异,并且具有良好的热稳定性,透明性和均匀性。 因此,它们可用作高性能VLDPE,LDPE,L-LDPE和HDPE,并且还可用作新型支化丙烯聚合物,热塑性弹性体,其它树脂的相容剂等。