PLASTIC FILM AND A METHOD FOR PRODUCTION THEREOF
    12.
    发明申请
    PLASTIC FILM AND A METHOD FOR PRODUCTION THEREOF 审中-公开
    塑料薄膜及其生产方法

    公开(公告)号:US20160229103A1

    公开(公告)日:2016-08-11

    申请号:US15026885

    申请日:2014-10-01

    Abstract: A plastic film is provided having one or more longitudinal bands with a thickness of 3 μm-50 μm thicker than the main portion of the film. Each thicker band is formed integral with the main portion of the film. Each band is in the form of a single ply. A method for producing the film includes that a molten polymer or polymer composition is extruded in a single ply and cooled, so that a film is formed. The polymer ply is cooled in one or more narrow areas before the main portion of the film is cooled. The narrow cooled areas correspond to the width and position of the thicker longitudinal band or bands. Some typical uses of the film include wrapping pallets and packaging agricultural produce.

    Abstract translation: 提供具有一个或多个厚度比膜的主要部分厚3μm至50μm的纵向带的塑料膜。 每个较厚的带与膜的主要部分成一体。 每个乐队都是单层的形式。 制造薄膜的方法包括熔融聚合物或聚合物组合物在单层中挤出并冷却,从而形成薄膜。 在薄膜的主要部分冷却之前,将聚合物层冷却在一个或多个窄区域中。 窄的冷却区域对应于较厚的纵向带或带的宽度和位置。 薄膜的一些典型用途包括包装托盘和包装农产品。

    METHOD AND APPARATUS FOR MANUFACTURING A FILM WITH MARKINGS
    13.
    发明申请
    METHOD AND APPARATUS FOR MANUFACTURING A FILM WITH MARKINGS 审中-公开
    用于制造具有标记的膜的方法和装置

    公开(公告)号:US20120313288A1

    公开(公告)日:2012-12-13

    申请号:US13462552

    申请日:2012-05-02

    Abstract: A method for manufacturing a film that is provided with markings and is based on a thermoplastic plastic. The thermoplastic plastic is melted in an extruder and emerges from an extrusion die in the form of a melt web. The melt web is conveyed away over a surface of at least one cooling roller and cooled to produce the film. In subregions of the surface of the at least one cooling roller corresponding to the markings, the melt web and/or the film being produced from it is acted on with a different cooling action than in a remainder of the surface.

    Abstract translation: 一种制造具有标记并基于热塑性塑料的膜的方法。 将热塑性塑料在挤出机中熔融并以熔融纤维网的形式从挤出模头中排出。 将熔体幅材输送到至少一个冷却辊的表面上并冷却以产生该膜。 在对应于标记的至少一个冷却辊的表面的次级区域中,由其产生的熔体幅材和/或膜以与在表面的其余部分中的不同的冷却作用起作用。

    Extrusion die for forming polymeric foam sheets
    15.
    发明申请
    Extrusion die for forming polymeric foam sheets 审中-公开
    用于形成聚合物泡沫板的挤出模具

    公开(公告)号:US20080057148A1

    公开(公告)日:2008-03-06

    申请号:US11511734

    申请日:2006-08-29

    Abstract: An extrusion die for forming polymeric foam sheets includes a first die body, a second die body, and a manifold within the first die body and the second die body, wherein the manifold includes an inlet to receive polymeric material. The extrusion die further includes a die exit formed by opposing die lips in fluid communication with the manifold and a temperature control zone adjacent the die lips. The extrusion die further includes two generally planar shaping surfaces in proximity to the die exit and place one above and one below the die exit. Adjustable shoes are disposed in proximity to the die exit on each side of the die exit and between the planar shaping surfaces.

    Abstract translation: 用于形成聚合物泡沫板的挤出模具包括第一模具主体,第二模具主体和第一模具主体和第二模具主体内的歧管,其中歧管包括用于容纳聚合材料的入口。 挤出模具还包括通过与歧管流体连通的相对的模唇和与模唇相邻的温度控制区形成的模具出口。 挤出模具还包括靠近模具出口的两个大致平面的成形表面,并且在模具出口的下面放置一个。 在模具出口的每一侧和平面成形表面之间设置可调节的鞋子靠近模具出口。

    BLOWN-FILM EXTRUSION APPARATUS AND A METHOD FOR MANUFACTURING A BLOWN FILM

    公开(公告)号:US20180126616A1

    公开(公告)日:2018-05-10

    申请号:US15576515

    申请日:2016-05-27

    Inventor: Marco PONSIANI

    Abstract: A blown-film extrusion apparatus for manufacturing a tubular polymer film comprises an extruder; a solidification ring for solidifying a tubular element produced by the extruder and for forming the film by delivering cooling air on the tubular element at a given cooling height, and a film conveyor for conveying the film upwards. The apparatus also comprises a delivery device for projecting correction air on the tubular element, in order to locally correct the thickness of the film, comprising a distribution chamber; a plurality of air delivery members with delivery channels whose delivery mouths are arranged about said axis of the apparatus for projecting correction air partial streams on respective angular correction positions, between the die and the cooling height; flow control elements between the distribution chamber, and the inlet of respective air delivery members, configured for adjusting the flowrate of the respective correction air stream according to an adjustment signal. According to an aspect of the invention, a plurality of separate radial ducts is provided defining respective delivery channels and spaced apart, at an own end portion, by separation spaces, so that the correction air partial streams, after hitting the tubular element in the respective angular correction positions, can flow away from the tubular element through said separation spaces. According to another aspect of the invention, the distribution chamber is defined by an upper ring and by a lower ring connected to each other by means of tight fixed joints with a first substantially cylindrical wall and with a second substantially cylindrical wall arranged around the first cylindrical wall, wherein possible separate radial ducts of the air delivery members protrude from the first cylindrical wall.

    DEVICE FOR COOLING AN ADHESIVE PRODUCT THAT IS PACKAGED IN A NON-ADHESIVE ENVELOPE
    18.
    发明申请
    DEVICE FOR COOLING AN ADHESIVE PRODUCT THAT IS PACKAGED IN A NON-ADHESIVE ENVELOPE 审中-公开
    用于冷却非粘性包装中粘合的产品的装置

    公开(公告)号:US20110120675A1

    公开(公告)日:2011-05-26

    申请号:US12640116

    申请日:2009-12-17

    Abstract: A device for cooling products (12) that include an adhesive material that is packaged in a non-adhesive envelope, includes at least one sloped pipe (13) into which flows a cooling liquid that can transport the products, at least one element (20) for evacuating at least a portion of the cooling liquid that is provided in the pipe (13) so as to split the pipe (13) into at least two segments (14, 16), an upstream segment (14) and a downstream segment (14, 16), and at least one element for supplying the downstream segment (16) with cooling liquid.

    Abstract translation: 一种用于冷却产品(12)的装置,其包括封装在非粘性封套中的粘合剂材料,包括至少一个倾斜管(13),可将运送产品的冷却液流动到其中,至少一个元件(20 ),用于排出设置在管(13)中的至少一部分冷却液,以将管(13)分成至少两个段(14,16),上游段(14)和下游段 (14,16)和用于向下游段(16)供应冷却液的至少一个元件。

    Process for producing thermoplastic resin sheet with controlled warpage
    19.
    发明申请
    Process for producing thermoplastic resin sheet with controlled warpage 审中-公开
    具有控制翘曲的热塑性树脂板的制造方法

    公开(公告)号:US20070267773A1

    公开(公告)日:2007-11-22

    申请号:US11785534

    申请日:2007-04-18

    Abstract: The present invention provides a process for producing a thermoplastic resin sheet with controlled warpage, the process including extruding a thermoplastic resin sheet, while giving mechanically controlled warpage to the sheet at a position where a temperature of the sheet extruded becomes around a grass transition temperature (Tg) of a thermoplastic resin constituting the sheet. In this production process, the sheet is preferably allowed to pass through a pair of warpage-controlling upper and lower rolls at the position, and the mechanically controlled warpage is preferably given to the sheet by selecting shapes of the warpage-controlling rolls and/or by disposing the warpage-controlling rolls on an upper side or a lower side of a height where a flat sheet is obtained. According to this production process, a thermoplastic resin sheet with controlled warpage can be produced simply and easily with high efficiency.

    Abstract translation: 本发明提供了一种具有受控翘曲的热塑性树脂片的制造方法,该方法包括挤出热塑性树脂片,同时在片材的挤出温度达到草坪转变温度的地方给予机械控制的翘曲 Tg)构成片材的热塑性树脂。 在该制造方法中,优选使片材在该位置通过一对翘曲控制上下辊,并且优选通过选择翘曲控制辊的形状和/或 通过将翘曲控制辊设置在获得平板的高度的上侧或下侧。 根据该制造方法,可以简单且容易地以高效率制造具有受翘曲的热塑性树脂片。

    Optical film and process for producing the same
    20.
    发明申请
    Optical film and process for producing the same 审中-公开
    光学薄膜及其制造方法

    公开(公告)号:US20050151890A1

    公开(公告)日:2005-07-14

    申请号:US10508828

    申请日:2003-03-24

    Inventor: Koichi Nishimura

    Abstract: An optical film composed of a thermoplastic resin film obtained by using a melt extruding machine, characterized in that said thermoplastic resin film satisfies a relation of the formula below over the whole surface of the film when an angle made by the extruding direction of the thermoplastic resin film from the melt extruding machine and a slow phase axis at each point is α, and a retardation amount at each point is Re, is provided. [sin2 2α]×[sin2(π·Re/550)]≦4.0×10−5. According to the present invention, an optical film wherein there is no problem on a residual solvent, optical distortion is small, and there is no problem of color unevenness and color absence of a liquid crystal display obtained by using the optical film as a protective film of a polarizer is provided.

    Abstract translation: 一种由使用熔融挤出机获得的热塑性树脂膜构成的光学膜,其特征在于,当由热塑性树脂的挤出方向制成的角度时,所述热塑性树脂膜在膜的整个表面上满足下式的关系 来自熔融挤出机的薄膜和每个点的慢相位轴是α,并且各点的延迟量为Re。 [sin 2]2α] x [sin 2](pi.Re/550)] <= 4.0×10 -5。 根据本发明,在残留溶剂中没有问题的光学膜,光学变形小,并且不存在通过使用光学膜作为保护膜而获得的液晶显示器的颜色不均匀和缺色的问题 提供了偏振器。

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