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1. 发明申请

WO0022015A9 ELASTOMERIC POLYMER VEHICLE PARTS HAVING IMPROVED LOW-TEMPERATURE COMPRESSION SET 审中-公开
标题翻译：具有改进的低温压缩设备的弹性聚合物车辆部件
公开(公告)号：WO0022015A9
公开(公告)日：2000-10-12
申请号：PCT/US9922091
申请日：1999-09-23
申请人： EXXON CHEMICAL PATENTS INC
发明人： LIOTTA RON , RAVISHANKAR PERIAGARAM S
IPC分类号： C08J5/00 , C08F4/659 , C08F10/00 , C08F210/18 , C08L23/16 , F16G5/04 , F16G5/00
CPC分类号： F16G5/04 , C08F4/65908 , C08F10/00 , C08F210/18 , C08L23/16 , C08F4/65927 , C08F4/68 , C08F210/06 , C08F2500/25 , C08F2500/17
摘要： Motor vehicle parts based on an ethylene, alpha-olefin, diene monomer elastomeric polymers exhibit excellent low temperature compression set. Previously, such compression set performance in the amorphous region was believed to be non-responsive to ethylene content once the amorphous region was reached. However, within certain ranges, ethylene content has been shown to have an effect on low temperature compression set even in the amorphous region. These motor vehicle parts are particularly useful where extremes of ambient temperatures maybe incurred. In a preferred embodiment, the invention is a vehicle part, such a brake part or belt including an ethylene, alpha -olefin, diene elastomeric polymer. The elastomeric polymer has a low ethylene content, and the vehicle part made from a compound based on the elastomeric polymer will have improved low temperature compression set. The vehicle part comprises the elastomeric polymer where the polymer has ethylene present in the range of from 50-60 mole percent, ethyldiene norbornene present in the range of from 0.2-5 mole percent and an alpha -olefin, selected from propylene, hexene-1 and octene-1, where the alpha -olefin makes up the remainder of the elastomeric polymer. The ethylene composition distribution of the elastomeric polymer is such that the ethylene in 90 % of the polymer fractions varies by no more than +/- 4 % by weight. The Mw/Mn will be in the range of 2-4, the inherent viscosity in the range of 1.2-3.2 and the Mooney Viscosity (1+4) @ 125 DEG C in the range of from 10-80. The vehicle part will have an instantaneous compression set at -40 DEG C, less than 80 %.
摘要翻译：基于乙烯，α-烯烃，二烯单体弹性体聚合物的汽车零件表现出优异的低温压缩变定。以前，一旦达到无定形区域，认为无定形区域中的这种压缩永久变形性能对乙烯含量无响应。然而，在一定的范围内，即使在非晶区域，乙烯含量也显示出对低温压缩变定具有影响。这些机动车辆部件在可能发生极端环境温度的情况下特别有用。在一个优选的实施方案中，本发明是车辆部件，例如包括乙烯，α-烯烃，二烯弹性体聚合物的制动部件或带。弹性体聚合物具有低的乙烯含量，并且由基于弹性体聚合物的化合物制成的载体部分将具有改进的低温压缩永久变形。载体部分包含弹性体聚合物，其中聚合物的乙烯含量为50-60％（摩尔），乙二烯降冰片烯的含量为0.2-5％（摩尔），α-烯烃选自丙烯，己烯-1 和辛烯-1，其中α-烯烃构成弹性体聚合物的剩余部分。弹性体聚合物的乙烯组成分布使得90％聚合物部分中的乙烯变化不超过+/- 4重量％。 Mw / Mn在2-4的范围内，特性粘度在1.2-3.2范围内，125℃时的门尼粘度（1 + 4）在10-80的范围内。车辆部件将具有-40℃的瞬时压缩率，小于80％。

2. 发明申请

WO0026296A9 ETHYLENE ALPHA-OLEFIN ELASTOMERIC POLYMER COMPOSITIONS HAVING IMPROVED EXTRUSION PROCESSIBILITY 审中-公开
标题翻译：具有改进的挤出方法的乙烯丙烯烯烃弹性体聚合物组合物
公开(公告)号：WO0026296A9
公开(公告)日：2000-09-28
申请号：PCT/US9925088
申请日：1999-10-26
申请人： EXXON CHEMICAL PATENTS INC
发明人： RAVISHANKAR PERIAGARAM S , DHARMARAJAN N RAJA
IPC分类号： C08L23/08 , C08L23/16
CPC分类号： C08L23/16 , C08L23/0815 , C08L2203/202 , C08L2205/02 , C08L2314/06 , C08L2666/04
摘要： Extruded shapes, profiles and parts in general based on an ethylene, alpha-olefin elastomeric polymer are manufactured utilizing a tailored approach to polymerization, leading to a polymer that delivers all of the benefits of metallocene based polymers, but without the drawbacks. Additionally, the ethylene, alpha-olefin elastomeric polymer has a broader molecular weight distribution than generally available from metallocene catalyzed elastomeric polymers.
摘要翻译：基于乙烯，α-烯烃弹性体聚合物的挤出形状，型材和部件通过定制的聚合方法制造，导致提供茂金属基聚合物的所有益处但没有缺点的聚合物。此外，乙烯，α-烯烃弹性体聚合物具有比通常由茂金属催化的弹性体聚合物获得的分子量分布更宽的分子量分布。

3. 发明申请

WO0001766A9 ELASTIC BLENDS COMPRISING CRYSTALLINE POLYMER AND CRYSTALLIZABLE POLYMERS OF PROPYLENE 审中-公开
标题翻译：包含聚丙烯和聚丙烯的结晶聚合物的弹性共混
公开(公告)号：WO0001766A9
公开(公告)日：2000-05-18
申请号：PCT/US9914668
申请日：1999-06-29
申请人： EXXON CHEMICAL PATENTS INC
发明人： DATTA SUDHIN , COZEWITH CHARLES C , RAVISHANKAR PERIAGARAM S , STACHOWSKI EDMUND J III
IPC分类号： C08L23/10 , C08L23/12 , C08L23/14 , C08L23/16
CPC分类号： C08L23/10 , C08L23/12 , C08L23/142 , C08L2205/02 , C08L2666/04 , C08L2666/06
摘要： Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from 35 % to 85 % isotactic polypropylene and from 30 % to 70 % of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominantly propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
摘要翻译：包含全同立构聚丙烯组分和α-烯烃和丙烯共聚物组分的改进的热塑性聚合物共混组合物，所述共聚物包含可结晶的α-烯烃序列。在优选的实施方案中，提供了包含35％至85％的全同立构聚丙烯和30％至70％的乙烯和丙烯共聚物的改进的热塑性聚合物共混物，其中所述共聚物包含等度可结晶的丙烯序列并且主要是丙烯。所得到的共混物表现出意想不到的相容特性，增加的拉伸强度和改进的工艺特性，例如单一熔点。

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