Biaxially oriented and heat-set multilayer thermoplastic film for packaging
    2.
    发明授权
    Biaxially oriented and heat-set multilayer thermoplastic film for packaging 失效
    双轴取向和热定型多层热塑性薄膜包装

    公开(公告)号:US07063885B2

    公开(公告)日:2006-06-20

    申请号:US10221429

    申请日:2001-02-27

    IPC分类号: B32B27/32 B32B27/34

    摘要: A multi-layer, thermoplastic film bi-axially oriented at a stretching ratio ≧ to about 3.0:1 in the machine direction and at a stretching ratio ≧ about 6.0:1 in the transverse direction, which film comprises a layer a) comprising at least 50 wt. % of a crystalline or partially crystalline co-polyamide characterized by a Tg≦100° C. and at least one outer heat-sealing layer b) comprising a polyolefin, said film being further characterized in that it has a % free shrink at 100° C.≦3 in each direction.

    摘要翻译: 在机器方向上以拉伸比≥= 3.0:1的双轴热塑性薄膜沿横向方向以约6.0:1的拉伸比横向取向的多层热塑性薄膜,该薄膜包括层a),包括 至少50wt。 %的结晶或部分结晶的共聚酰胺,其特征在于T 100℃和至少一个包含聚烯烃的外部热封层b),所述膜的进一步特征在于, 它在100℃下具有%的自由收缩率。在每个方向上<= 3。

    Highly bi-axially oriented, heat-shrinkable, thermoplastic, multi-layer film and process for the manufacture thereof
    3.
    发明授权
    Highly bi-axially oriented, heat-shrinkable, thermoplastic, multi-layer film and process for the manufacture thereof 有权
    高度双轴向取向,热收缩,热塑性,多层膜及其制造方法

    公开(公告)号:US06602455B1

    公开(公告)日:2003-08-05

    申请号:US09856878

    申请日:2001-08-16

    申请人: Roberto Forloni

    发明人: Roberto Forloni

    IPC分类号: B32B3130

    摘要: A bi-axially oriented, heat-shrinkable multi-layer film comprising a core layer (A) comprising an ethylene-vinyl alcohol copolymer (EVOH), a first outer layer (B) comprising an ethylene homo- or co-polymer and a second outer layer (C), which may be equal to or different from the first outer layer (B), comprising an ethylene homo- or co-polymer, characterized in that said film has been bi-axially oriented at an orientation ratio in the longitudinal direction higher than 4:1, preferably higher than 4.5:1, more preferably of at least 5:1 and at an orientation ratio in the cross-wise direction higher than 4:1, preferably higher than 4.5:1, more preferably of at least 5:1, is obtained by a process which comprises melt extrusion of the film polymers through a flat die and orientation of the obtained cast sheet simultaneously in the longitudinal and the transversal directions by a simultaneous tenter.

    摘要翻译: 一种双轴取向的热收缩多层膜,其包含由乙烯 - 乙烯醇共聚物(EVOH)构成的芯层(A),包含乙烯均聚物或共聚物的第一外层(B) 外层(C),其可以等于或不同于第一外层(B),其包含乙烯均聚物或共聚物,其特征在于,所述膜以纵向取向比例进行双轴取向 方向高于4:1,优选高于4.5:1,更优选至少5:1,并且在横向上的取向比高于4:1,优选高于4.5:1,更优选在 至少5:1是通过一种方法获得的,该方法包括通过平坦模具熔融挤出膜聚合物并通过同时拉幅机在纵向和横向上同时获得所得流延薄片的取向。

    Coextruded heat-shrinkable polyester film
    4.
    发明授权
    Coextruded heat-shrinkable polyester film 有权
    共挤出热收缩聚酯薄膜

    公开(公告)号:US08129007B2

    公开(公告)日:2012-03-06

    申请号:US12223644

    申请日:2007-01-29

    申请人: Roberto Forloni

    发明人: Roberto Forloni

    IPC分类号: B65B53/02 B32B27/06 B29C47/06

    摘要: Coextruded, biaxially oriented, heat-shrinkable films having a base layer comprising a polyester having an intrinsic viscosity greater than 0.75 and at least one outer heat-sealable layer directly adhered to the base layer are disclosed. The outer layer is heat-sealable and optionally peelable in particular to polyester containers. The invention further relates to a process for producing the film and to packages comprising a container, a product and the coextruded, biaxially-oriented heat-shrinkable film sealed onto the container. The packages are suitable for use with ready-prepared foods, so-called “ready-meals”, which are intended to be warmed in a microwave or in a conventional oven.

    摘要翻译: 公开了一种共挤出的双轴取向的热收缩膜,其具有包含特性粘度大于0.75的聚酯的基层和至少一个直接粘附到基层的外部可热封层。 外层是可热封的,特别是可剥离的聚酯容器。 本发明还涉及一种用于制造膜和包装物的方法,包括容器,产品和密封在容器上的共挤出的双轴取向的热收缩膜。 这些包装适合用于准备好的食物,即所谓的“即食”,这些食物旨在在微波炉或常规烤箱中加热。

    Multilayer oriented high-modulus film
    9.
    发明申请
    Multilayer oriented high-modulus film 有权
    多层取向高模量薄膜

    公开(公告)号:US20070031691A1

    公开(公告)日:2007-02-08

    申请号:US10565868

    申请日:2004-07-21

    IPC分类号: B32B27/36 B32B27/28

    摘要: The invention relates to a high modulus, bi-axially oriented film, heat-shrinkable or non heatshrinkable, comprising a first outer layer comprising a polyester or a copolyester, a second outer layer comprising an ethylene or propylene homo- or co-polymer, a core layer comprising an ethylene-vinyl alcohol copolymer, and no core polyamide or polyester layers. The film according to the present invention is prepared by orienting biaxially a flat extruded tape by means of a tenter frame, preferably simultaneously, and has a modulus higher than 6,000 kg/cm2 in at least one direction. The film of the present invention is particularly useful, in the non heat-shrinkable version, for food and non food packaging applications.

    摘要翻译: 本发明涉及一种高模量双轴取向膜,可热收缩或不可热收缩,其包含第一外层,其包含聚酯或共聚酯,第二外层包含乙烯或丙烯均聚物或共聚物, 核心层包含乙烯 - 乙烯醇共聚物,并且没有芯聚酰胺或聚酯层。 根据本发明的膜通过拉幅机双轴方向取向,优选同时进行,并且在至少一个方向上具有高于6000kg / cm 2的模量。 本发明的膜在非热收缩型中特别适用于食品和非食品包装应用。

    Heat-shrinkable multilayer thermoplastic film
    10.
    发明授权
    Heat-shrinkable multilayer thermoplastic film 失效
    热收缩多层热塑性薄膜

    公开(公告)号:US06299984B1

    公开(公告)日:2001-10-09

    申请号:US09390970

    申请日:1999-09-07

    申请人: Roberto Forloni

    发明人: Roberto Forloni

    IPC分类号: B32B2708

    摘要: A highly oriented, heat-shrinkable, multi-layer film comprising a layer a) comprising a polyamide and an outer heat-sealing layer b) comprising a polyolefin, which film has been oriented at a stretching ratio ≧ about 3.0:1 in the machine direction and at a stretching ratio ≧ about 6.0:1 in the transverse direction, characterized in that the polyamide of layer a) is a crystalline or partially crystalline co-polyamide with a Tg≦100° C.

    摘要翻译: 一种高度取向的热收缩多层膜,其包含层a),其包含聚酰胺和外部热封层b),其包含聚烯烃,该膜已经以约3.0:1的拉伸比定向在 机器方向,并且在横向上的拉伸比> = 6.0:1,其特征在于a)层的聚酰胺是Tg <= 100℃的结晶或部分结晶的共聚酰胺。