发明授权
US4617322A Pre-expanded particle of non-crosslinked linear low density polyethylene
失效
非交联线性低密度聚乙烯的预发泡颗粒
- 专利标题： Pre-expanded particle of non-crosslinked linear low density polyethylene
- 专利标题（中）： 非交联线性低密度聚乙烯的预发泡颗粒
-
申请号： US748803申请日： 1985-06-26
-
公开(公告)号： US4617322A公开(公告)日： 1986-10-14
- 发明人: Kenichi Senda , Masao Ando , Kyoichi Nakamura , Tatehiko Nishida
- 申请人： Kenichi Senda , Masao Ando , Kyoichi Nakamura , Tatehiko Nishida
- 申请人地址： JPX Osaka
- 专利权人： Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人： Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX58-60591 19830405; JPX59-7634 19840118
- 主分类号： C08J9/18
- IPC分类号： C08J9/18 ; C08J9/228
摘要：
A pre-expanded particle suitable for foaming in a mold comprising non-crosslinked linear low density polyethylene which has a characteristic property that an inclination of slope line obtained on a graph when logarithmic values of melt tension of the polyolefin are plotted as ordinate and reciprocals of absolute temperature at which the melt tension is measured are plotted as abscissa is not more than 1,500 is provided. A foamed article produced from the pre-expanded particles has an excellent appearance, a flat surface and good mechanical strength, and is useful for wrapping material, insulating material, a container or a fender of cars.