Coextrusion tie based on cografted metallocene polyethylene and LLDPE, on SBS and on PE,申请号AU20030246303-传众专利搜索

Coextrusion tie based on cografted metallocene polyethylene and LLDPE, on SBS and on PE

申请公布号：AU2003246303(B2)

申请号：AU20030246303

申请日期：2003.09.15

申请公布日期：2005.01.20

申请人：

ATOFINA

发明人：PATRICE ROBERT;JEROME PASCAL;JEAN-LAURENT PRADEL

分类号：B32B27/30;B29C47/04;B29K23/00;B29K35/00;B32B27/06;B32B27/32;B32B27/34;B32B27/36;B32B33/00;B65D88/22;C08F;C08J5/18;C08L23/04;C08L23/06;C08L25/10;C08L51/06;C08L53/00;C08L53/02;C09J123/04;C09J147/00;C09J153/02;(IPC1-7):C08L053/02;B32B033/00;B32B031/30;C08J005/18

主分类号：B32B27/30

摘要：<p>A coextrusion binder comprising a mixture of a metallocene polyethylene and non-metallocene linear low density polyethylene (LLDPE) cografted with an unsaturated carboxylic acid or derivative, styrene-butadiene-styrene (SBS) block copolymer and polyethylene with a melt fluidity index of 0.1-10 g/10 minutes. The binder comprises 10-35 wt.% of the mixture comprising 80-20 wt.% of a metallocene polyethylene with density 0.815-0.915 and 20-80 wt.% of non-metallocene LLDPE grafted with 30-100000 ppm of carboxylic acid or derivative; 40-60 wt.% of SBS with 50-90 mol.% styrene; 20-35 wt.% polyethylene. Independent claims are included for a multilayer structure comprising a layer comprising the binder and a layer of polystyrene homo- or copolymer attached to one or other of its faces and for an object comprising such a structure.</p>