公开(公告)号：US5145728A

公开(公告)日：1992-09-08

申请号：US713831

申请日：1991-06-12

申请人： Yasushi Itaba ,  Yutaka Yoshifuji ,  Takayoshi Kondo ,  Keichiro Saitoh ,  Tadao Yoshino ,  Minoru Izawa ,  Ichiro Sakamoto

发明人： Yasushi Itaba ,  Yutaka Yoshifuji ,  Takayoshi Kondo ,  Keichiro Saitoh ,  Tadao Yoshino ,  Minoru Izawa ,  Ichiro Sakamoto

IPC分类号： C08J5/18 ,  C08L23/04

CPC分类号： C08L23/06 ,  C08J5/18 ,  C08J2323/04 ,  C08L2205/03 ,  C08L23/0815 ,  C08L2312/06 ,  C08L57/02 ,  Y10T428/24942 ,  Y10T428/2495

摘要： An oriented polyethylene film with an excellent moistureproofness and optical property is provided in which the degree of crosslinking is uniform or decreases inwardly across the thickness of the film, and which consists of a composition comprising (A) 50 to 90% by weight of polyethylene with a density of at least 0.935 g/cm.sup.3 and a high load melt index to melt index ratio of at most 100 and (B) 50 to 10% by weight of a petroleum resin or linear low density polyethylene.

摘要翻译： 提供了具有优异的防湿性和光学性能的取向聚乙烯膜，其中交联度在膜的厚度上均匀或内向减少，并且由包含（A）50至90重量％的聚乙烯与 密度至少为0.935g / cm 3，高熔体指数与熔体指数之比至多为100，（B）为50至10重量％的石油树脂或线性低密度聚乙烯。

公开(公告)号：US5043204A

公开(公告)日：1991-08-27

申请号：US278201

申请日：1988-11-30

申请人： Yasushi Itaba ,  Yutaka Yoshifuji ,  Takayoshi Kondo ,  Keichiro Saitoh ,  Tadao Yoshino ,  Minoru Izawa ,  Ichiro Sakamoto

发明人： Yasushi Itaba ,  Yutaka Yoshifuji ,  Takayoshi Kondo ,  Keichiro Saitoh ,  Tadao Yoshino ,  Minoru Izawa ,  Ichiro Sakamoto

IPC分类号： C08J5/18 ,  C08L23/04

CPC分类号： C08L23/06 ,  C08J5/18 ,  C08J2323/04 ,  C08L2205/03 ,  C08L23/0815 ,  C08L2312/00 ,  C08L57/00 ,  Y10T428/24942 ,  Y10T428/2495

摘要： An oriented polyethylene film with an excellent moistureproofness and optical property is provided in which the degree of crosslinking is uniform or decreases inwardly across the thickness of the film, and which consists of a composition comprising (A) 50 to 90% by weight of polyethylene with a density of at least 0.935 g/cm.sup.3 and a high load melt index to melt index ratio of at most 100 and (B) 50 to 10% by weight of a petroleum resin or linear low density polyethylene.

公开(公告)号：US5006378A

公开(公告)日：1991-04-09

申请号：US268498

申请日：1988-11-08

申请人： Yasushi Itaba ,  Yutaka Yoshifuji ,  Takayoshi Kondo ,  Minoru Izawa ,  Ichiro Sakamoto ,  Tadao Yoshino

发明人： Yasushi Itaba ,  Yutaka Yoshifuji ,  Takayoshi Kondo ,  Minoru Izawa ,  Ichiro Sakamoto ,  Tadao Yoshino

IPC分类号： B32B27/32

CPC分类号： B32B27/32 ,  Y10S428/91 ,  Y10T428/1328 ,  Y10T428/2826 ,  Y10T428/31692 ,  Y10T428/31721 ,  Y10T428/31746 ,  Y10T428/31797 ,  Y10T428/31888 ,  Y10T428/31902 ,  Y10T428/31913 ,  Y10T428/31938

摘要： A polyethylene composite film suitable for packaging, which is superior in moistureproofness, flex-o-crack resistance, tearability and heat-sealing property, is provided comprising an oriented polyethylene film such that the degree of cross-linking inwardly decreases across the thickness of the film and at least one lamination layer, provided on one side of the oriented polyethylene film consisting of a lamination material having a heat shrinkage of less than 5% at 120.degree. C.

公开(公告)号：US5045620A

公开(公告)日：1991-09-03

申请号：US404100

申请日：1989-09-07

申请人： Yasushi Itaba ,  Yutaka Yoshifuji ,  Takayoshi Kondo ,  Ichiro Sakamoto

发明人： Yasushi Itaba ,  Yutaka Yoshifuji ,  Takayoshi Kondo ,  Ichiro Sakamoto

IPC分类号： B29C55/12 ,  B29C55/00 ,  B29C55/14 ,  B29K23/00 ,  B29K105/24 ,  B29L7/00

CPC分类号： B29C55/005 ,  B29C55/143 ,  B29K2023/06 ,  B29K2105/243 ,  Y10S428/91 ,  Y10T428/31913

摘要： Disclosed are oriented polyethylene films having specific elongation and strength, which are excellent in linear tearability and clear tearability, suitably used for packaging and produced by longitudinally stretching a polyethylene resin sheet in which the degree of crosslinking inwardly decreases across the thickness thereof at a draw ratio of at least 5 times at a temperature of not higher than the melting point of a polyethylene resin forming the polyethylene resin sheet, and laterally stretching said sheet 4 to 8 times at a temperature ranging from above the melting point of the polyethylene resin up to 10.degree. C. higher than the melting point thereof.

公开(公告)号：US4636340A

公开(公告)日：1987-01-13

申请号：US682864

申请日：1984-12-18

申请人： Yasushi Itaba ,  Tadao Yoshino ,  Yutaka Yoshifuji ,  Keichiro Saito ,  Jyoichi Tabuchi

发明人： Yasushi Itaba ,  Tadao Yoshino ,  Yutaka Yoshifuji ,  Keichiro Saito ,  Jyoichi Tabuchi

IPC分类号： C08K3/00 ,  B29C55/00 ,  B29C55/02 ,  B29K23/00 ,  B29K105/16 ,  B29K105/24 ,  B29L7/00 ,  C08J3/24 ,  C08J5/18 ,  C08L23/00 ,  C08L23/04 ,  C08L101/00 ,  B29C35/08 ,  B29C55/12

CPC分类号： C08J3/245 ,  B29C55/02 ,  C08J5/18 ,  B29K2023/06 ,  C08J2323/06 ,  Y10T428/264 ,  Y10T428/268 ,  Y10T428/31855

摘要： An oriented film is prepared by crosslinking a sheet of polyethylene (preferably HDPE) containing particulate inorganic slip and antiblock additions to provide maximum crosslinking at the surfaces of the sheet and minimum orientation at its middle layer portion, and thereafter heating and stretching the film to obtain an oriented HDPE of high clarity film of improved moisture proof.

摘要翻译： 通过将含有颗粒状无机滑动和防粘连添加剂的聚乙烯片（优选HDPE）交联以在片材的表面提供最大交联并在其中间层部分最小取向来制备定向膜，然后加热和拉伸该膜以获得 高透明度的取向HDPE，具有改进的防潮性能。

公开(公告)号：US4673619A

公开(公告)日：1987-06-16

申请号：US896798

申请日：1986-08-15

申请人： Yasushi Itaba ,  Tadao Yoshino ,  Yutaka Yoshifuji ,  Keichiro Saito ,  Jyoichi Tabuchi

发明人： Yasushi Itaba ,  Tadao Yoshino ,  Yutaka Yoshifuji ,  Keichiro Saito ,  Jyoichi Tabuchi

IPC分类号： C08K3/00 ,  B29C55/00 ,  B29C55/02 ,  B29K23/00 ,  B29K105/16 ,  B29K105/24 ,  B29L7/00 ,  C08J3/24 ,  C08J5/18 ,  C08L23/00 ,  C08L23/04 ,  C08L101/00 ,  B32B7/02

CPC分类号： C08J3/245 ,  B29C55/02 ,  C08J5/18 ,  B29K2023/06 ,  C08J2323/06 ,  Y10T428/264 ,  Y10T428/268 ,  Y10T428/31855

摘要： An oriented film is prepared by crosslinking a sheet of polyethylene (preferably HDPE) containing particulate inorganic slip and antiblock additions to provide maximum crosslinking at the surfaces of the sheet and minimum orientation at its middle layer portion, and thereafter heating and stretching the film to obtain an oriented HDPE of high clarity film of improved moisture proof.

摘要翻译： 通过将含有颗粒状无机滑动和防粘连添加剂的聚乙烯片（优选HDPE）交联以在片材的表面提供最大交联并在其中间层部分最小取向来制备定向膜，然后加热和拉伸该膜以获得 高透明度的取向HDPE，具有改进的防潮性能。

公开(公告)号：US5227233A

公开(公告)日：1993-07-13

申请号：US773561

申请日：1991-11-06

申请人： Yasushi Itaba ,  Yutaka Yoshifuji

发明人： Yasushi Itaba ,  Yutaka Yoshifuji

IPC分类号： G09F3/04

CPC分类号： G09F3/04 ,  Y10T428/24479 ,  Y10T428/24876 ,  Y10T428/28 ,  Y10T428/2848

摘要： A label comprising a polyethylene film in which the degree of crosslinking inwardly decreases across the thickness of the film and on one side of which printing is performed, and an adhesive layer further formed thereon. The label is good in clarity, is possible to perform back surface printing, can provide an integral feeling and a high-class feeling as if curved-surface printing is performed on a cylindrical container itself, is sufficient in rigidity and strength and therefore is possible to be thinly formed, is resistant to water wetting and contamination, is unnecessary to be stripped in recovering and recycling a polyethylene bottle when the label is stuck thereon, can be stuck on the bottle concurrently with blow molding of the bottle printed, and is therefore suitable for use as a label for in-molding. Degassing is carried out by forming an uneven surface on the adhesive surface, whereby the blister phenomenon can be avoided when the label is stuck on the surface of a bottle concurrently with blow molding of the bottle. When a primer layer intervenes between printing ink and the adhesive layer, the label excellent in the adhesive strength between the printing ink and the adhesive layer can be obtained.