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    • 4. 发明专利
    • Biodegradable wrap film
    • 生物可擦写膜片
    • JP2011173656A
    • 2011-09-08
    • JP2011061016
    • 2011-03-18
    • Mitsubishi Plastics Inc三菱樹脂株式会社
    • NEMOTO TOMOYUKITAKAGI JUN
    • B65D65/46B65D65/02C08J5/18C08K5/098C08K5/10C08L67/02C08L67/04C08L71/00C08L101/16
    • C08L67/04C08J5/18C08J2367/04C08K5/098C08L67/02C08L71/00C08L2666/18C08L2666/22
    • PROBLEM TO BE SOLVED: To provide a biodegradable wrap film which is simultaneously provided with cutting suitability, wrapping suitability, and heat resistance in addition to biodegradability of lactic acid system resin.
      SOLUTION: The biodegradable wrap film mostly contains a lactic acid system resin composition, wherein the value of storage elastic modulus at 40°C measured at the frequency of 10 Hz and the distortion of 0.1% according to the dynamic viscoelasticity measurement method of JISK-7198A method is in the range of 100 MPa to 3 GPa; the value of the storage elastic modulus at 100°C is in the range of 30 to 500 MPa; and the peak value of loss tangent (tan δ) is in the range of 0.1 to 0.8. This film is excellent in microwave oven suitability in addition to resiliency, softness, stretch and tensile strength which are suitable for the intended use as the household wrap film.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 待解决的问题:提供除了乳酸系树脂的生物降解性以外,同时具有切割适用性,包装适用性和耐热性的生物降解性保鲜膜。

      解决方案:生物降解性保鲜膜主要含有乳酸系树脂组合物,其中根据动态粘弹性测定方法,以10Hz的频率测定的40℃下的储能弹性模量值和0.1%的变形率 JISK-7198A方法在100MPa至3GPa的范围内; 100℃下的储能弹性模量的值在30〜500MPa的范围内; 损耗角正切值(tanδ)在0.1〜0.8的范围内。 除了弹性,柔软性,拉伸强度和拉伸强度之外,该膜还具有优异的微波炉适用性,适用于家用包装膜。 版权所有(C)2011,JPO&INPIT

    • 5. 发明专利
    • Laminated reflective film
    • 层压反射膜
    • JP2011141325A
    • 2011-07-21
    • JP2010000579
    • 2010-01-05
    • Mitsubishi Plastics Inc三菱樹脂株式会社
    • SHINOURA YASUTAKASEO TORUTAKAGI JUN
    • G02B5/26B32B7/02B32B27/00C09K3/00G02F1/1335
    • PROBLEM TO BE SOLVED: To provide a laminated reflective film having a thermosensitive light controlling function of keeping sufficient reflection efficiency at a period requiring IR ray cut like summer time and sufficiently reducing reflection efficiency at a period requiring heating effect by IR rays like winter time. SOLUTION: The laminated reflective film is a laminate having a layer (A layer) consisting essentially of a thermoplastic resin (a) having crystal melting temperature or glass transition temperature of ≥75°C and a layer (B layer) consisting essentially of a thermoplastic resin (b) having crystal melting temperature of ≤70°C, wherein reflectance difference (ΔR2) between the A layer and the B layer is 1.0% or more, and reflectance difference (ΔR) of the laminate between reflectance at 20°C and reflectance at 100°C is preferably 30% or more. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种具有热敏光控制功能的层压反射膜,其在需要像夏季时间的IR光线切割的时间段内保持足够的反射效率,并且在需要通过IR光线的加热效果的时期充分降低反射效率,例如 冬天的时候 层压反射膜是具有基本上由具有结晶熔融温度或玻璃化转变温度≥75℃的热塑性树脂(a)组成的层(A层)的层压体和基本上组成的层(B层) 的结晶熔融温度为≤70℃的热塑性树脂(b),其中A层与B层之间的反射率差(ΔR2)为1.0%以上,层叠体的反射率(ΔR)为20 ℃,100℃下的反射率优选为30%以上。 版权所有(C)2011,JPO&INPIT
    • 7. 发明专利
    • Laminate, heat-shrinkable film and heat-shrinkable label each obtained from the laminate, and container bearing the label
    • 层压板,热收缩膜和热收缩标签,每个从层压板获得,容器承载标签
    • JP2009137294A
    • 2009-06-25
    • JP2008292762
    • 2008-11-14
    • Mitsubishi Plastics Inc三菱樹脂株式会社
    • MUTA TAKATOSHITANAKA YUKIHIROHIRUMA TAKASHITAKAGI JUN
    • B32B25/14B29C61/06B29K67/00B29K105/02B29L9/00B65B53/00B65D25/36B65D65/40G09F3/02G09F3/04
    • B32B27/36B32B7/04B32B27/08B32B27/302B32B27/32B32B2250/44B32B2270/00B32B2274/00B32B2307/412B32B2307/736B32B2519/00B32B2553/00
    • PROBLEM TO BE SOLVED: To provide a laminate that has excellent interlaminar adhesion and also, after having been processed into a heat shrinkable film, has excellent shrinkage characteristics and transparency, and that is suitable for use in applications such as shrink packaging, shrink bundling, and shrink labels. SOLUTION: The laminate comprises in the following order a first layer constituted of a resin composition comprising a polyester elastomer and/or a modified polyester elastomer; and a second layer constituted of a resin composition comprising a polyester resin. The laminate has an interlaminar peeling strength of 1 N/15 mm width or higher when examined by forming the laminate into a heat shrinkable film, obtaining from the film a test piece having a size in which the dimension in a main shrinkage direction is 150 mm and that in the direction perpendicular to the main shrinkage direction is 15 mm, partly peeling off the second layer in the test piece from an end in the main shrinkage direction, clipping with the chucks of a tensile tester that part of the second layer which has been peeled off and that part of the first layer from which the second layer has been peeled, and conducting a 180° peel test in the main shrinkage direction at a test speed of 100 mm/min. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供具有优异的层间粘合性的层压体,并且在被加工成热收缩膜之后,具有优异的收缩特性和透明度,并且适用于诸如收缩包装, 收缩捆绑和收缩标签。 解决方案:层压体按以下顺序包括由包含聚酯弹性体和/或改性聚酯弹性体的树脂组合物构成的第一层; 以及由包含聚酯树脂的树脂组合物构成的第二层。 当通过将层压体形成为热收缩膜进行检查时,层压体的层间剥离强度为1N / 15mm宽或更大,从该膜获得具有主收缩方向尺寸为150mm的尺寸 并且在与主收缩方向垂直的方向上为15mm,从主收缩方向的端部部分地剥离试验片中的第二层,用拉伸试验机的卡盘夹持具有第 被剥离,第二层被剥离的第一层的一部分被剥离,并以100mm / min的试验速度在主收缩方向进行180°剥离试验。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Method for producing laminated porous film
    • 生产层压多孔膜的方法
    • JP2013063664A
    • 2013-04-11
    • JP2012264734
    • 2012-12-03
    • Mitsubishi Plastics Inc三菱樹脂株式会社
    • YAMADA TAKEMIKIUSAMI YASUSHITAKAGI JUN
    • B32B5/32B29C47/06B29K23/00B29L7/00B29L9/00B32B27/32B32B37/00
    • PROBLEM TO BE SOLVED: To provide a method for producing a laminated porous film that has excellent air permeation characteristics and mechanical strength, and exerts breakdown characteristics superior to that of conventional polypropylene porous films.SOLUTION: There is provided the method for producing a laminated porous film formed by laminating porous layers of at least a first layer and a second layer. The method comprises: laminating the first layer and the second layer thereby producing a laminated non-porous film; and making the laminated non-porous film porous, wherein the first layer comprises a composition formed by mixing a thermoplastic resin having a crystal melting peak temperature of 170°C or higher with a polypropylene resin blended with a β-crystal nucleating agent and has β-activity and/or β-crystal formation power, and wherein the second layer comprises a composition in which the thermoplastic resin having a crystal melting peak temperature of 170°C or higher is not mixed with the polypropylene resin blended with the β-crystal nucleating agent and has β-activity and/or β-crystal formation power.
    • 待解决的问题:提供一种具有优异的透气特性和机械强度并且具有优于常规聚丙烯多孔膜的击穿特性的层压多孔膜的制造方法。 解决方案:提供了通过层叠至少第一层和第二层的多孔层而形成的层压多孔膜的方法。 该方法包括:层压第一层和第二层,由此制备层压无孔膜; 并且使所述层压无孔膜多孔,其中所述第一层包含通过将结晶熔融峰值温度为170℃以上的热塑性树脂与与所述β-晶体成核剂混合的聚丙烯树脂混合而形成的组合物,并且具有β 活性和/或β-晶体形成能力,并且其中第二层包括其中结晶熔融峰值温度为170℃或更高的热塑性树脂不与掺有β-晶体成核的聚丙烯树脂混合的组合物 具有β活性和/或β晶形成能力。 版权所有(C)2013,JPO&INPIT