公开(公告)号：US20030204006A1

公开(公告)日：2003-10-30

申请号：US10352198

申请日：2003-01-28

申请人： SUMITOMO ELECTRIC FINE POLYMER, INC.

发明人： Kiyoaki Moriuchi ,  Hiroshi Hayami ,  Tomoyoshi Kishimoto ,  Shuuji Azuma ,  Kiyosei Hori

IPC分类号： F16B004/00 ,  B32B001/08 ,  C08K009/00 ,  C08K003/10

CPC分类号： B32B1/08 ,  B32B27/20 ,  B32B27/32 ,  H02G15/1806 ,  Y10T428/1328 ,  Y10T428/1393

摘要： A halogen-free flame-retardant heat-shrinkable tube with high expanding property having the surface with excellent marking property and printability is provided. The tube includes an outer layer mainly made of polyolefin resin blended at the ratio of 100 parts by weight of a polyolefin resin and 100 to 250 parts by weight of metal hydroxide or that which is surface-treated with a silane coupling agent and an inner layer mainly made of polyolefin resin blended at the ratio of 100 parts by weight of a polyolefin resin and 100 to 250 parts by weight of metal hydroxide which is surface-treated with an anionic surface-active agent.

摘要翻译： 提供了具有高扩展性的无卤阻燃热收缩管，其表面具有优异的标记性和可印刷性。 该管包括主要由聚烯烃树脂制成的外层，其以100重量份的聚烯烃树脂和100至250重量份的金属氢氧化物的比例混合，或者用硅烷偶联剂和内层进行表面处理 主要由聚烯烃树脂以100重量份的聚烯烃树脂和100至250重量份用阴离子表面活性剂表面处理的金属氢氧化物混合而成的聚烯烃树脂制成。

公开(公告)号：US20030026926A1

公开(公告)日：2003-02-06

申请号：US10196294

申请日：2002-07-17

申请人： Sumitomo Electric Fine Polymer, Inc.

发明人： Koji Muto ,  Taro Fujita ,  Shinya Nishikawa ,  Hiroshi Hayami

IPC分类号： B32B001/08

CPC分类号： B29C61/003 ,  B29C61/08 ,  B29K2023/06 ,  H01B3/441 ,  Y10T428/1328 ,  Y10T428/1331 ,  Y10T428/139 ,  Y10T428/1397

摘要： The present invention improves the concentricity after expansion process of a heat shrinkable tube which is required to have a thin wall and hardness, and further aims to obtain elongation of 100% or more in a heat aging test, copper stability test, and heat shock test. The heat shrinkable tube satisfying such aim uses a medium- or high-density polyethylene that has a molecular weight distribution (Mw/Mn) of 30 to 55, an MFR of 0.05 to 0.2, and a specific gravity of 0.94 to 0.96. A medium- or high-density polyethylene obtained by combining an ethylene-vinyl acetate copolymer, ethylene-ethylacrylate copolymer, ethylene-methylacrylate copolymer, and ethylene-ethylmethacrylate copolymer may be used. More preferably, for an antioxidant, phenol-based and sulfur-based antioxidants are used together and zinc oxide is added.

摘要翻译： 本发明提高了需要具有薄壁和硬度的热收缩管的膨胀过程之后的同心度，并且还旨在在热老化试验，铜稳定性试验和热冲击试验中获得100％以上的伸长率 。 满足该目的的热收缩管使用分子量分布（Mw / Mn）为30〜55，MFR为0.05〜0.2，比重为0.94〜0.96的中密度或高密度聚乙烯。 可以使用通过组合乙烯 - 乙酸乙烯酯共聚物，乙烯 - 丙烯酸乙酯共聚物，乙烯 - 丙烯酸甲酯共​​聚物和乙烯 - 甲基丙烯酸乙酯共聚物而获得的中等或高密度聚乙烯。 更优选地，对于抗氧化剂，苯酚基和硫基抗氧化剂一起使用并加入氧化锌。