公开(公告)号：US06492475B1

公开(公告)日：2002-12-10

申请号：US09719981

申请日：2000-12-19

申请人： Toshiaki Egashira ,  Reiji Higuchi ,  Kazuyuki Sakamoto ,  Kimiya Miyoshi ,  Masahiro Wakayama ,  Tatsuo Yamaguchi ,  Fumio Asada ,  Sinji Miwa ,  Kenichi Hiraki ,  Masaaki Ikeda ,  Yoshimi Shimizu

发明人： Toshiaki Egashira ,  Reiji Higuchi ,  Kazuyuki Sakamoto ,  Kimiya Miyoshi ,  Masahiro Wakayama ,  Tatsuo Yamaguchi ,  Fumio Asada ,  Sinji Miwa ,  Kenichi Hiraki ,  Masaaki Ikeda ,  Yoshimi Shimizu

IPC分类号： C08F21016

CPC分类号： H01B3/441 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/00 ,  C08F210/02 ,  C08F210/14 ,  C08L23/04 ,  C08L23/0815 ,  C08L2314/06 ,  Y10T428/1386 ,  Y10T428/31855 ,  Y10T428/31895 ,  Y10T428/31902 ,  Y10T428/31913 ,  Y10T428/31938 ,  C08F4/65904 ,  C08F4/651 ,  C08L2666/04 ,  C08F236/06

摘要： The present invention relates to an ethylene-&agr;-olefin copolymer; a composition thereof; a film thereof; a polar group-containing resin material; and productions and use of the ethylene-&agr;-olefin copolymer. The ethylene-&agr;-olefin copolymer of the present invention is characterized in satisfying the following conditions (A) to (E): (A) a density in the range of 0.92 to 0.96 g/cm3; (B) a melt flow rate (MFR) in the range of 0.01 to 200 g/10 min; (C) a molecular weight distribution (Mw/Mn) in the range of 1.5 to 5.0; (D) possessing only one peak in terms of the number of peaks observed in an elution temperature-eluted amount curve as measured by the continuous temperature raising elution fractionation (TREF) method, from the integrated elution curve obtained by the elution temperature-eluted amount curve, the difference T75−T25 in the temperature and density d respectively satisfy a specific relationship, wherein T25 is the temperature where 25% of the total elution is obtained, and T75 is the temperature where 75% of the total elution is obtained; and (E) possessing one or two melting point peaks, and among these the highest melting point Tm1 and the density d satisfy a specific relationship. Accordingly, this ethylene-&agr;-olefin copolymer exhibits a superior thermal resistance, heat sealability, and processability.

摘要翻译： 本发明涉及乙烯-α-烯烃共聚物; 其组成; 其电影; 含极性基团的树脂材料; 以及乙烯-α-烯烃共聚物的生产和使用。 本发明的乙烯-α-烯烃共聚物的特征在于满足以下条件（A）〜（E）：（A）在0.92〜0.96g / cm 3的范围内的密度; （B）熔体流动速率（MFR）在0.01〜200g / 10min的范围内; （C）1.5〜5.0的分子量分布（Mw / Mn） （D）在通过连续升温洗脱分级（TREF）法测定的洗脱温度 - 洗脱量曲线中观察到的峰的数目中仅具有一个峰，从通过洗脱温度洗脱量获得的积分洗脱曲线 曲线，温度和密度d的差T75-T25分别满足特定关系，其中T25是获得总洗脱的25％的温度，T75是获得总洗脱的75％的温度; 和（E）具有一个或两个熔点峰，其中最高熔点Tm1和密度d满足特定关系。 因此，该乙烯-α-烯烃共聚物表现出优异的耐热性，热封性和加工性。