NON-CROSSLINKED POLYETHYLENE-EXTRUDED FOAM,申请号JP20110018181-传众专利搜索

NON-CROSSLINKED POLYETHYLENE-EXTRUDED FOAM

申请公布号：JP2012158654(A)

申请号：JP20110018181

申请日期：2011.01.31

申请公布日期：2012.08.23

申请人：

TOSOH CORP

发明人：KIKUCHI GENZO;ABE SHIGEHIKO

分类号：C08J9/14

主分类号：C08J9/14

摘要：<P>PROBLEM TO BE SOLVED: To provide a non-crosslinked polyethylene-extruded foam in which an expansion ratio is high, and that is excellent in mechanical strength and fabrication quality. <P>SOLUTION: The non-crosslinked polyethylene-extruded foam is used, which comprises an ethylene polymer in which a density is 920-950 kg/m<SP POS="POST">3</SP>, an MFR is 0.1-50 g/10 minutes, two peaks are shown in a molecular weight measurement by a gel permeation chromatography, and a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number-average molecular weight (Mn) is in a range of 2.0-7.0, wherein the ethylene polymer has at least 0.15 long chain branching per 1,000 of a carbon number of a main chain in a fraction in which Mn is at least 100,000 when a molecular weight is classified. In the polyethylene-extruded foam, an expansion ratio is at least threefold. <P>COPYRIGHT: (C)2012,JPO&INPIT