Ethylene/&agr;-olefin copolymer
    1.
    发明授权
    Ethylene/&agr;-olefin copolymer 有权
    乙烯/α-烯烃共聚物

    公开(公告)号:US06492475B1

    公开(公告)日:2002-12-10

    申请号:US09719981

    申请日:2000-12-19

    IPC分类号: C08F21016

    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。