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1. 发明授权

US5990242A Propylene/ethylene-.alpha.-olefin block copolymer and process for processing the same 失效
标题翻译：丙烯/乙烯-α-烯烃嵌段共聚物及其加工方法
公开(公告)号：US5990242A
公开(公告)日：1999-11-23
申请号：US863395
申请日：1997-05-27
申请人： Naofumi Naga , Yoshiaki Oobayashi , Masatada Tasaka , Kouji Mizunuma
发明人： Naofumi Naga , Yoshiaki Oobayashi , Masatada Tasaka , Kouji Mizunuma
IPC分类号： C08F297/08 , C08F297/00
CPC分类号： C08F297/08
摘要： A propylene/ethylene-.alpha.-olefin block copolymer obtained by block-copolymerizing a polypropylene component with an ethylene-.alpha.-olefin random copolymer component, which satisfies conditions of the following terms (I) to (III):(I) the content of the polypropylene component having an intrinsic viscosity ([.eta.]) measured in tetralin at 135.degree. C. of from 0.5 to 5.0 dl/g is from 5 to 95% by weight;(II) the content of the .alpha.-olefin in the random copolymer component is from 5 to 40 mol %, and the content of the ethylene-.alpha.-olefin random copolymer component whose .rho. value represented by the following equation:.rho.=2[E].multidot.[A]/[EA](wherein [E] represents a molar fraction of ethylene, [A] represents a molar fraction of the .alpha.-olefin and [EA] represents a molar fraction of a diad chain of ethylene and the .alpha.-olefin) is within the range from 0.5 to 1.5 is from 5 to 95% by weight; and(III) the intrinsic viscosity ([.eta.]) of the propylene/ethylene-.alpha.-olefin block copolymer measured in tetralin at 135.degree. C. is from 0.5 to 5.0 dl/g, and a process for producing the above propylene/ethylene-.alpha.-olefin block copolymer.
摘要翻译：通过将聚丙烯组分与乙烯-α-烯烃无规共聚物组分嵌段共聚获得的丙烯/乙烯-α-烯烃嵌段共聚物，其满足以下（I）至（III）的条件：（I）在135℃下在四氢化萘中测得的特性粘度（η）为0.5-5.0dl / g的聚丙烯组分为5-95重量％（II）中，无规共聚物成分中的α-烯烃的含量为5〜40摩尔％，rho值由下式表示的乙烯-α-烯烃无规共聚物成分的含量：rho = 2 [E ] x [A] / [EA]（其中[E]表示乙烯的摩尔分数，[A]表示α-烯烃的摩尔分数，[EA]表示乙烯的二元链的摩尔分数， α-烯烃）在0.5〜1.5的范围内为5〜95重量％和（III）在135℃下在四氢化萘中测得的丙烯/乙烯-α-烯烃嵌段共聚物的特性粘度（η）为0.5-5.0dl / g，以及制备上述丙烯/乙烯 α-烯烃嵌段共聚物。

2. 发明授权

US06613845B1 Propylene/ethylene-&agr;-olefin block copolymer and process for producing the same 有权
标题翻译：丙烯/乙烯-α-烯烃嵌段共聚物及其制备方法
公开(公告)号：US06613845B1
公开(公告)日：2003-09-02
申请号：US09337502
申请日：1999-06-22
申请人： Naofumi Naga , Yoshiaki Oobayashi , Masatada Tasaka , Kouji Mizunuma
发明人： Naofumi Naga , Yoshiaki Oobayashi , Masatada Tasaka , Kouji Mizunuma
IPC分类号： C08F29300
CPC分类号： C08F297/08
摘要： A propylene/ethylene-&agr;-olefin block copolymer obtained by block-copolymerizing a polypropylene component with an ethylene-&agr;-olefin random copolymer component, which satisfies conditions of the following terms (I) to (III): (I) the content of the polypropylene component having an intrinsic viscosity ([&eegr;]) measured in tetralin at 135° C. of from 0.5 to 5.0 dl/g is from 5 to 95% by weight; (II) the content of the &agr;-olefin in the random copolymer component is from 5 to 40 mol %, and the content of the ethylene-&agr;-olefin random copolymer component whose &rgr; value represented by the following equation: &rgr;=2[E]·[A]/[EA] (wherein [E] represents a molar fraction of ethylene, [A] represents a molar fraction of the &agr;-olefin and [EA] represents a molar fraction of a diad chain of ethylene and the &agr;-olefin) is within the range from 0.5 to 1.5 is from 5 to 95% by weight; and (III) the intrinsic viscosity ([&eegr;]) of the propylene/ethylene-&agr;-olefin block copolymer measured in tetralin at 135° C. is from 0.5 to 5.0 dl/g, and a process for producing the above propylene/ethylene-&agr;-olefin block copolymer.
摘要翻译：通过将聚丙烯组分与乙烯-α-烯烃无规共聚物组分嵌段共聚获得的丙烯/乙烯-α-烯烃嵌段共聚物，其满足下列条件（I）至（III）:( I）的条件：在135℃下在四氢化萘中测得的特性粘度（η）为0.5-5.0dl / g的聚丙烯组分为5-95重量％;（II）随机的α-烯烃含量共聚物成分为5〜40摩尔％，rho值由下式表示的乙烯-α-烯烃无规共聚物成分的含量：[其中[E]表示乙烯的摩尔分数，[A]表示摩尔 α-烯烃的分数和[EA]表示乙烯和α-烯烃的二价链的摩尔分数在0.5至1.5的范围内为5至95重量％; 和（III）在135℃下在四氢化萘中测得的丙烯/乙烯-α-烯烃嵌段共聚物的特性粘度（η）为0.5-5.0dl / g，制备上述丙烯/乙烯 α-烯烃嵌段共聚物。

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