公开(公告)号：US5958313A

公开(公告)日：1999-09-28

申请号：US826386

申请日：1997-04-09

申请人： Tomoyuki Yamamoto ,  Masahiko Toyozumi ,  Koji Kita

发明人： Tomoyuki Yamamoto ,  Masahiko Toyozumi ,  Koji Kita

IPC分类号： B29C47/08 ,  C08L23/02 ,  B28B7/04

CPC分类号： C08L23/0815 ,  B29C47/0877 ,  C08L23/06 ,  B29C47/0019 ,  C08L2205/03 ,  C08L23/0861 ,  C08L29/04 ,  C08L71/02 ,  C08L77/00

摘要： A purging agent for purging the resin to be purged from an extruder in a melt extrusion apparatus is provided which comprises (A) a hydrophobic thermoplastic resin, (B) a hydrophilic thermoplastic resin and (C) a purging auxiliary selected from the group consisting of (C1) a plasticizer for the resin to be purged, (C2) water and (C3) a crystal water-containing compound, the proportions of the hydrophobic thermoplastic resin (A) and hydrophilic thermoplastic resin (B) being 100/0 to 30/70 by weight and the proportion of the purging auxiliary (C) relative to 100 weight parts of the sum total of the hydrophobic thermoplastic resin (A) plus hydrophilic thermoplastic resin (B) being 0.01 to 40 weight parts.

摘要翻译： 提供一种用于在熔融挤出装置中从挤出机中吹扫待清洗的树脂的清洗剂，其包含（A）疏水性热塑性树脂，（B）亲水性热塑性树脂和（C）选自以下的清洗助剂： （C1）用于待清洗树脂的增塑剂，（C2）水和（C3）含结晶水的化合物，疏水性热塑性树脂（A）和亲水性热塑性树脂（B）的比例为100/0至30 / 70，相对于疏水性热塑性树脂（A）加亲水性热塑性树脂（B）总和的100重量份，净化助剂（C）的比例为0.01〜40重量份。

公开(公告)号：US5849376A

公开(公告)日：1998-12-15

申请号：US699465

申请日：1996-08-19

申请人： Tsukasa Oishi ,  Masahiko Toyozumi

发明人： Tsukasa Oishi ,  Masahiko Toyozumi

IPC分类号： B32B27/32 ,  B32B5/14 ,  B32B9/04 ,  B32B27/30

CPC分类号： B32B27/32 ,  Y10T428/1328 ,  Y10T428/31913 ,  Y10T428/31935

摘要： A laminate having an excellent gas barrier property and an improved organic solvent resistance and suitable for use in containers for chemicals and volatile materials such as organic solvents and fuels. The laminate comprises: (A) a layer comprising (A1) a hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 10 to 70% by mole and a degree of hydrolysis of at least 85% by mole, (B) a layer of a resin composition comprising (B1) a polyolefin resin and (B2) 0.5 to 40% by weight, based on said polyolefin (B1), of a hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 10 to 70% by mole and a degree of hydrolysis of at least 85% by mole, (C) an outer layer of a polyolefin resin disposed on the outer side of said layer (A), and optionally an outer layer of said polyolefin resin (C) disposed on the other side and at least one adhesive layer disposed between adjacent two layers, wherein the ratio of the apparent melt viscosity of said polyolefin (B1) to that of said hydrolyzed copolymer (B2) at a rate of shear of 100 cm.sup.-1 and at 230.degree. C. is from 0.1 to 50.

摘要翻译： 具有优异的阻气性和改善的耐有机溶剂性并且适用于化学品和挥发性物质如有机溶剂和燃料的容器中的层压体。 层压体包括：（A）包含（A1）乙烯含量为10〜70摩尔％，水解度为85摩尔％以上的水解乙烯 - 乙酸乙烯酯共聚物的层（A），（B） 一种树脂组合物，其包含（B1）聚烯烃树脂和（B2）基于所述聚烯烃（B1）0.5至40重量％的乙烯含量为10至70摩尔％的水解乙烯 - 乙酸乙烯酯共聚物和 水解度至少为85摩尔％，（C）设置在所述层（A）的外侧的聚烯烃树脂的外层，以及任选设置在另一侧的所述聚烯烃树脂（C）的外层 以及设置在相邻两层之间的至少一个粘合剂层，其中所述聚烯烃（B1）与所述水解共聚物（B2）的表观熔体粘度在100cm -1的剪切速率和230℃下的比例 为0.1〜50。