Heat-shrinkable laminate film
    1.
    发明授权
    Heat-shrinkable laminate film 失效
    热收缩层压膜

    公开(公告)号:US5232767A

    公开(公告)日:1993-08-03

    申请号:US815874

    申请日:1992-01-06

    IPC分类号: B32B27/08

    摘要: A biaxially stretched heat-shrinkable laminated film is disclosed which possesses good heat-shrinkability, excellent melt hole resistance and heat-resistant sealing property (the heat resistance of a seal portion), and highly satisfactory cold resistance, retains transparency even after shrinkage, and serves advantageously as a wrap for packaging foodstuffs. The laminated film is provided as an oxygen barrier layer with a layer of a mixture of vinylidene chloride resin and a low melting point polyamide resin having a crystalline melting point of not higher than 210.degree. C. This mixed resin has been cross-linked by applying the electron beam to the laminate in a dosage in the range of 1 to 12 megarads. The laminated film exhibits a heat shrinkage percentage of not less than 15% at 90.degree. C. and excels in gas barrier property.

    摘要翻译: 公开了具有良好的热收缩性,优异的熔融孔电阻和耐热密封性(密封部的耐热性)的双轴向拉伸的热收缩层压膜,以及高度令人满意的耐寒性,即使在收缩后也保持透明性, 有利地用作包装食品的包装。 层叠膜作为氧阻隔层,具有偏二氯乙烯树脂和结晶熔点不高于210℃的低熔点聚酰胺树脂的混合物层。该混合树脂已经通过应用 电子束以1至12兆拉德的范围内的剂量施加到层压体。 层压膜在90℃下的热收缩率为15%以上,阻气性优异。

    Resin composition and molded products thereof
    2.
    发明授权
    Resin composition and molded products thereof 失效
    树脂组合物及其成型体

    公开(公告)号:US4992311A

    公开(公告)日:1991-02-12

    申请号:US332823

    申请日:1989-04-04

    IPC分类号: C08L27/08 C08L77/00

    摘要: Disclosed herein are a resin composition comprising 5 to 95% by weight of a vinylidene chloride resin and 5 to 95% by weight of a polyamide resin having a low crystalline melting point of not higher than 210.degree. C. and a molded product of said resin composition.The molded product of the present invention shows a molded product excellent in gas-barrier property and impact strength at low temperature, particularly a film, sheet or container.Among the resin compositions of the present invention, since the composition having 60 to 95% by weight of vinylidene chloride resin is particularly rich in gas-barrier property, it is suitable for packaging foods, and since the composition having more than 40% by weight and not more than 95% by weight of polyamide resin is excellent particularly in impact strength at low temperature, it is suitable as the packaging material for use at an extremely low temperature. Moreover, the gas-barrier property and the transparency of the latter molded product which is rich in polyamide resin can be improved by stretching the product so that the dispersed particle of vinylidene chloride resin is made to be flat.

    Vacuum packaging method
    4.
    发明授权
    Vacuum packaging method 失效
    真空包装方式

    公开(公告)号:US4275544A

    公开(公告)日:1981-06-30

    申请号:US74828

    申请日:1979-09-12

    IPC分类号: B65B11/52 B65B31/00 B65B31/02

    CPC分类号: B65B31/00 B65B11/52

    摘要: An improved method of vacuum packaging by using a specific laminated film as a package film, the laminated film being composed of a plastically deformable layer of a synthetic resin having a yield stress more than 50 kg/cm.sup.2 at a temperature of 23.degree. C. and an elongation of less than 30% at elastic limit at a shaping temperature of 50.degree. to 180.degree. C. and an elastic layer of a synthetic resin having an elongation of more than 40% at elastic limit at the shaping temperature.

    摘要翻译: 通过使用特定层压膜作为包装膜的真空包装的改进方法,该层压膜由在23℃的屈服应力大于50kg / cm 2的合成树脂的可塑性变形层组成,以及 在成形温度为50〜180℃的弹性极限下的伸长率小于30%,在成形温度下的弹性极限伸长率大于40%的合成树脂的弹性层。

    Laminated packing material with a high gas-impermeablility and an
advantageous workability
    6.
    发明授权
    Laminated packing material with a high gas-impermeablility and an advantageous workability 失效
    层压包装材料具有很高的气体不可渗透性和有利的加工性

    公开(公告)号:US4288488A

    公开(公告)日:1981-09-08

    申请号:US51193

    申请日:1979-06-22

    摘要: A laminated packaging material having high impermeability to gases and high workability is prepared by the lamination of a layer of copolymer of vinylidene chloride containing 3-10% by weight of a plasticizer of a number average molecular weight of less than 500 with another layer of a synthetic resin containing 5-70% by weight of at least one organic additive of a number average molecular weight of about 800-10,000 and selected from the group consisting of glycerides of higher saturated or unsaturated fatty acids and of epoxidized fatty acids, rosin and rosin derivatives, oligomeric copolymers of styrene with isobutylene, butadiene or isoprene, oligomeric polyesters which are formed by polycondensation of aliphatic dicarboxylic acid with 6-10 carbon atoms and polyhydric alcohol with 2-6 carbon atoms and have a number average molecular weight of 1,000-2,000, and oligomeric epoxides formed by polycondensation between epichlorhydrin and bisphenol.

    摘要翻译: 通过层压含有3-10重量%的数均分子量小于500的增塑剂的偏二氯乙烯的共聚物层与另一层的共混物层叠制备具有对气体的高不透性和高加工性的层压包装材料 含有5-70重量%的数均分子量为约800-10,000的至少一种有机添加剂,并且选自高级饱和或不饱和脂肪酸的甘油酯和环氧化脂肪酸的甘油酯,松香和松香 苯乙烯与异丁烯,丁二烯或异戊二烯的衍生物,低聚共聚物,通过脂族二羧酸与6-10个碳原子的缩聚形成的低聚聚酯和具有2-6个碳原子的多元醇并且具有数均分子量为1,000-2,000 ,和通过表氯醇和双酚缩聚形成的低聚环氧化物。

    Water-absorptive polyurethane fiber and method of producing the same
    8.
    发明授权
    Water-absorptive polyurethane fiber and method of producing the same 失效
    吸水聚氨酯纤维及其制造方法

    公开(公告)号:US6017625A

    公开(公告)日:2000-01-25

    申请号:US116221

    申请日:1998-07-16

    摘要: A water-insoluble, nonionic water-absorptive polyurethane fiber that combines the properties of high water absorptivity and excellent physical strength is produced by extrusion from a thermoplastic polyurethane resin composition at a temperature higher than its melting point. The thermoplastic polyurethane resin composition, which has a water absorption rate within the range of 200-3,000%, is obtained by reacting a polyisocyanate compound, a water-soluble polyalkylene ether polyol having a weight-average molecular weight of 2,000-13,000 and a chain extender at an equivalent ratio (R ratio) between the equivalent number of NCO groups and the equivalent number of OH groups in the range of 1.0 to 1.8. Also provided is a method of producing the water-absorptive polyurethane fiber.

    摘要翻译: 通过在高于其熔点的温度从热塑性聚氨酯树脂组合物挤出而产生结合了高吸水性和优异的物理强度的性质的水不溶性非离子吸水聚氨酯纤维。 吸水率在200-3000%范围内的热塑性聚氨酯树脂组合物是通过使多异氰酸酯化合物,重均分子量为2,000-13,000的水溶性聚亚烷基醚多元醇和链 以相当数量的NCO基团和OH基团的当量数之间的当量比(R比)在1.0至1.8的范围内。 还提供了一种生产吸水性聚氨酯纤维的方法。

    Bar positioning member and its forming apparatus
    9.
    发明授权
    Bar positioning member and its forming apparatus 失效
    杆定位构件及其成型装置

    公开(公告)号:US4318262A

    公开(公告)日:1982-03-09

    申请号:US954506

    申请日:1978-10-25

    申请人: Tsutomu Uehara

    发明人: Tsutomu Uehara

    IPC分类号: E04C5/16 E04C5/18

    CPC分类号: E04C5/166

    摘要: A bar-positioning member comprising a long metal wire or wire rod with at least one indentation to receive a metal bar intersectingly disposed relative to the wire. The indentation is formed by bending part of the wire and it has only one opening which opens along the longitudinal direction of the wire. The indentation has a bottom shaped approximately in conformity with the circumference of the bar.An apparatus for making a bar positioning member, as above described, comprising a pendulumlike mold member swingable about the base end thereof. The mold member has a grip to hold an intermediate portion of the wire, and the contour of the base end is shaped in conformity with the shape of the indentation.

    摘要翻译: 一种棒定位构件,其包括具有至少一个压痕的长金属线或线材,以接收相对于所述线相互布置的金属棒。 通过弯曲线的一部分形成凹陷,并且仅具有沿着线的纵向方向开口的一个开口。 该凹陷具有大致与条的周长一致的底部形状。 如上所述的用于制造杆定位构件的装置包括可围绕其基端摆动的摆式模具构件。 模具构件具有用于保持线的中间部分的把手,并且基端的轮廓与压痕的形状一致。