专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06875826B1 High melt strength polypropylene 失效
标题翻译：高熔体强度聚丙烯
公开(公告)号：US06875826B1
公开(公告)日：2005-04-05
申请号：US09508405
申请日：1998-09-28
申请人： Päivi Huovinen , Ali Harlin , Pirjo Jääskeläinen , Amir Karbasi , Nina Manner
发明人： Päivi Huovinen , Ali Harlin , Pirjo Jääskeläinen , Amir Karbasi , Nina Manner
IPC分类号： C08J9/00 , C08F2/01 , C08F2/34 , C08F4/645 , C08F4/654 , C08F4/6592 , C08F10/06 , C08F110/06 , C08F210/06
CPC分类号： C08F110/06 , Y10S526/905 , C08F2/001 , C08F2500/12 , C08F2500/04 , C08F2500/17
摘要： The present invention concerns a high melt strength propylene polymer or copolymer suitable for manufacturing foams and thermoformed product exhibiting a melt strength of at least 3 g and comprising a high molar mass portion and a low or medium molar mass portion. The polymers are produced by subjecting propylene and optionally other olefins to polymerization in a plurality of polymerization reactors connected in series, employing different amounts of hydrogen as a molar mass modifier in at least two of the reactors, and carrying out the polymerization reaction in the presence of a catalyst system capable of catalyzing the formation of a high molar mass polymerization product having a MFR2 of less than 0.1 g/l0 min and a low or medium molar mass polymerization product having a MFR2 of more than 0.5 g/10 min.
摘要翻译：本发明涉及适用于制造泡沫和热成型产品的高熔体强度丙烯聚合物或共聚物，其具有至少3g的熔体强度并且包含高摩尔质量部分和低或中等摩尔质量部分。聚合物是通过使丙烯和任选的其它烯烃在串联连接的多个聚合反应器中进行聚合而制备的，其中在至少两个反应器中使用不同量的氢作为摩尔质量调节剂，并在存在下进行聚合反应的催化剂体系，其能够催化形成MFR 2小于0.1g / lmin的高摩尔质量聚合产物和具有大于0.5g / 10min的MFR 2的低或中等摩尔质量的聚合产物。

2. 发明授权

US06503993B1 Propylene polymers and products thereof 有权
标题翻译：丙烯聚合物及其制品
公开(公告)号：US06503993B1
公开(公告)日：2003-01-07
申请号：US09530294
申请日：2000-06-27
申请人： Päivi Huovinen , Pirjo J{umlaut over (aa)}skeläinen , Amir Karbasi , Christer Lind , Bo Malm , John Haugen
发明人： Päivi Huovinen , Pirjo J{umlaut over (aa)}skeläinen , Amir Karbasi , Christer Lind , Bo Malm , John Haugen
IPC分类号： C08F1006
CPC分类号： C08F297/083 , C08F10/06 , C08F110/06 , C08F210/06 , C08F297/08 , C08L53/00 , C08F4/6492 , C08F4/6465 , C08L2666/02 , C08F2500/12 , C08F2500/17 , C08F210/16 , C08F212/00 , C08F210/14
摘要： The present invention concerns nucleated propylene polymers having a xylene soluble fraction at 23° C. of less than 2.5%, a crystallization temperature of over 124 ° C. and a tensile modulus of greater than 2,000 MPa. These polymers can be prepared by nucleating a propylene polymer with a polymeric nucleating agent containing vinyl compound units, and by polymerizing propylene optionally with comonomers in the presence of a Ziegler-Natta catalyst system primarily transesterified with a phthalic acid ester—a lower alcohol pair to provide said propylene polymer. The catalyst contains a strongly coordinating external donor.
摘要翻译：本发明涉及在23℃下二甲苯可溶组分小于2.5％，结晶温度超过124℃，拉伸模量大于2000MPa的有核丙烯聚合物。这些聚合物可以通过用含有乙烯基化合物单元的聚合物成核剂将丙烯聚合物成核，并且在主要由邻苯二甲酸酯 - 低级醇对酯交换的齐格勒 - 纳塔催化剂体系存在下，将丙烯任选地与共聚单体聚合，提供所述丙烯聚合物。该催化剂含有一个强配位的外部供体

3. 发明授权

US06576710B1 Multi-stage process for the preparation of &agr;-olefin polymers having controlled stereoregularity and products prepared thereof 失效
标题翻译：用于制备具有受控的立构规整性的α-烯烃聚合物的多阶段方法及其制备的产物
公开(公告)号：US06576710B1
公开(公告)日：2003-06-10
申请号：US09890796
申请日：2001-09-26
申请人： Päivi Huovinen , Pauli Leskinen , Thomas Garoff
发明人： Päivi Huovinen , Pauli Leskinen , Thomas Garoff
IPC分类号： C08L2300
CPC分类号： C08F10/06 , C08F10/00 , C08F110/06 , C08F4/642 , C08F4/6465 , C08F4/6492 , C08F2/001 , C08F2500/12
摘要： The invention relates to the preparation of an &agr;-olefin polymer product having controlled stereoregularity, comprising the successive step of: (i) producing a first polymerization product by contacting under polymerization conditions an &agr;-olefin monomer with a polymerization catalyst system comprising a transition metal compound, a first organometal compound and a stereoregulating external electron donor to give a first polymerization reaction mixture; (ii) producing a second polymerization product by contacting additional &agr;-olefin monomer with the first polymerization reaction mixture. The controlled stereoregularity is achieved in such a way that in step (ii) the second polymerization product is produced in the presence of a stereoregularity controlling agent. The stereoregularity controlling agent e.g. a second organometal compound which contains, on an atom basis, more halogen per metal than the first organometal compound, or 0.01-1.2 % of an olefin which is not said &agr;-olefin monomer, calculated on the total molar amount of olefin and &agr;-olefin monomer.
摘要翻译：本发明涉及具有受控立构规整性的α-烯烃聚合物产物的制备，其包括以下连续步骤：（i）通过在聚合条件下使α-烯烃单体与包含过渡金属的聚合催化剂体系接触来制备第一聚合产物化合物，第一有机金属化合物和立体调节外电子给体，得到第一聚合反应混合物; （ii）通过使附加的α-烯烃单体与第一聚合反应混合物接触而产生第二聚合产物。控制的立构规整性以这样的方式实现：在步骤（ii）中，第二聚合产物是在立体规则性控制剂的存在下制备的。立构规整性控制剂例如第二有机金属化合物，其以原子计含有比第一有机金属化合物更多的卤素/金属，或0.01-1.2％的不是所述α-烯烃单体的烯烃，以烯烃和α-烯烃的总摩尔量计算，烯烃单体。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式