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    CUTTING AND EDGE SEALING CELLULAR RETROREFLECTIVE SHEETING
    3.
    发明申请
    CUTTING AND EDGE SEALING CELLULAR RETROREFLECTIVE SHEETING 审中-公开
    切割和边缘密封细胞回归分析

    公开(公告)号：WO00061355A1

    公开(公告)日：2000-10-19

    申请号：PCT/US2000/008906

    申请日：2000-04-04

    IPC分类号： B26D1/24 ,  B29C65/74 ,  B29D11/00 ,  G02B5/136

    CPC分类号： B29D11/00605 ,  B29C65/7435 ,  B29C65/7894 ,  B29C66/0242 ,  B29C66/1122 ,  B29C66/137 ,  B29C66/45 ,  B29C66/71 ,  B29C66/723 ,  B29C66/83413 ,  B29C66/83415 ,  B29L2011/0091 ,  Y10T156/1054 ,  Y10T156/1087 ,  Y10T156/1313 ,  B29K2001/12 ,  B29K2001/14 ,  B29K2023/06 ,  B29K2023/0633 ,  B29K2027/00 ,  B29K2033/12 ,  B29K2067/003 ,  B29K2075/00 ,  B29K2096/005

    摘要： A method for cutting and edge sealing cells of cellular retroreflective sheeting is disclosed using a specially designed apparatus and tool. Sheeting having a thickness T is heated to a thermoforming temperature to form a heated sheeting. Pressing the unheated tool, the heated sheeting, and a substrate together results in cutting and edge sealing of the heated sheeting. The tool has a radiused ridge for cutting and edge sealing with the shape of the ridge similar to the shape desired for the edge seal. A height H of the ridge is defined relative to the thickness of the sheeting. The fraction of the ridge height to the thickness of the sheeting is less than one and more than 0.2. The tools may be mounted on a perimeter of a wheel for continuously slitting and edge sealing strips of cellular sheeting. The retroreflectivity of the sheeting is maximized by (1) minimizing the width of the sealed edges while (2) maximizing the number of closed cells along the sealed edges that can withstand a water holdout test.

    摘要翻译： 使用专门设计的装置和工具公开了一种用于细胞定向反光片的切割和边缘密封细胞的方法。 将具有厚度T的片材加热至热成型温度以形成加热片材。 将未加热的工具，加热的片材和基底压在一起导致加热片材的切割和边缘密封。 该工具具有用于切割和边缘密封的圆角脊，其脊的形状类似于边缘密封所需的形状。 脊的高度H相对于片材的厚度来定义。 脊高度与片材厚度的分数小于1且大于0.2。 工具可以安装在轮的周边上，用于连续切割和边缘密封细胞片的条带。 片材的回射率最大化为（1）最小化密封边缘的宽度，同时（2）使密封边缘的封闭细胞数量最大化，从而可以承受阻水试验。

    STACKED LAMINATE MOLD AND METHOD OF MAKING
    5.
    发明申请
    STACKED LAMINATE MOLD AND METHOD OF MAKING 审中-公开
    堆叠层压模具及其制造方法

    公开(公告)号：WO1997027035A1

    公开(公告)日：1997-07-31

    申请号：PCT/US1996001250

    申请日：1996-01-26

    申请人： MINNESOTA MINING AND MANUFACTURING COMPANY ,  KRINKE, Harlan, L. ,  REEVES, Mark, E.

    发明人： MINNESOTA MINING AND MANUFACTURING COMPANY

    IPC分类号： B29C33/38

    CPC分类号： B23C3/00 ,  B29C33/302 ,  B29C33/3842 ,  B29C33/42 ,  B29C2033/385 ,  B29L2011/0091

    摘要： A method of forming a stacked laminate mold. The method comprises the steps of: a) orienting a plurality of plates (12) to have their respective major planes (16) at a first angle relative to a fixed reference plane and parallel to one another, each of the plates (12) including opposed parallel first and second major surfaces defining therebetween the major plane of each of the plurality of plates, each of the plates further including a mold surface (18) connecting the first and second major surfaces; b) forming a groove in the plurality of plates, the groove including a groove surface (42) defined by cylindric surface that is the construct of translating a two-dimensional groove profile through the plate along a line that is oblique to at least one of the plate major surfaces (16) and the plate mold surface (18), and wherein the groove surface intersects (48, 52, 54) each respective plate first major surface (14) and each respective plate mold surface (18); and thereafter c) reorienting the plates to have their respective major planes at a second angle relative to the reference for molding. Also disclosed is a stacked laminate mold. The mold comprises a plurality of plates (12), each of the plates including: opposed parallel first and second major surfaces (14, 16) defining therebetween a major plane of each of the plurality of plates; a mold surface (18) connecting the first and second major surfaces; and a plurality of cavities in each of the plurality of plates. Each of the cavities is open at least to the mold surface and includes a cavity surface defined by cylindric surface that is the construct of translating a two-dimensional cavity profile through the plate along a line that is oblique to at least one of the plate major surface (16) and the plate minor surface (18), and the cavity surface intersects each respective plate first major surface (14) and each respective plate mold surface (18). The first major surface (14) of a first one of the plurality of plates (12) is adjacent the second major surface (16) of a second one of the plurality of plates (12).

    摘要翻译： 一种堆叠层叠模具的形成方法。 该方法包括以下步骤：a）使多个板（12）定向成使其各自的主平面（16）相对于固定的参考平面成一定角度并相互平行，每个板（12）包括 相对的平行的第一和第二主表面在其间限定多个板中的每一个的主平面，每个板还包括连接第一和第二主表面的模具表面（18）; b）在所述多个板中形成凹槽，所述凹槽包括由圆柱形表面限定的凹槽表面（42），所述凹槽表面（42）是沿着与所述多个平面中的至少一个倾斜的直线平移通过所述板的二维凹槽轮廓的构造 板主表面（16）和板模表面（18），并且其中沟槽表面与每个相应的板第一主表面（14）和每个相应的板模具表面（18）相交（48,52,54）。 然后c）重新定向板，使其各自的主平面相对于用于模制的参考以第二角度。 还公开了一种堆叠的层叠模具。 模具包括多个板（12），每个板包括：相对的平行的第一和第二主表面（14,16），在其间限定多个板中的每一个的主平面; 连接第一和第二主表面的模具表面（18）; 以及多个板中的每一个中的多个空腔。 每个空腔至少打开到模具表面，并且包括由圆柱形表面限定的空腔表面，圆柱形表面是沿着与至少一个板材主体倾斜的线平移通过板的二维空腔轮廓的构造 表面（16）和板小表面（18），并且空腔表面与每个相应的板的第一主表面（14）和每个相应的板模具表面（18）相交。 多个板（12）中的第一个的第一主表面（14）与多个板（12）中的第二板的第二主表面（16）相邻。

    CELLULAR RETROREFLECTIVE SHEETING
    6.
    发明申请
    CELLULAR RETROREFLECTIVE SHEETING 审中-公开
    细胞反向选择

    公开(公告)号：WO1997019815A1

    公开(公告)日：1997-06-05

    申请号：PCT/US1996019159

    申请日：1996-12-02

    申请人： STIMSONITE CORPORATION

    发明人： STIMSONITE CORPORATION ,  THIELMAN, W., Scott

    IPC分类号： B32B31/16

    CPC分类号： B29D11/00605 ,  B29C65/086 ,  B29C66/1122 ,  B29C66/438 ,  B29C66/45 ,  B29C66/71 ,  B29C66/73921 ,  B29C66/81427 ,  B29C66/81433 ,  B29C66/81467 ,  B29C66/81469 ,  B29C66/83411 ,  B29K2995/003 ,  B29L2011/0091 ,  Y10S359/90 ,  Y10T428/24479 ,  B29K2075/00 ,  B29K2069/00 ,  B29K2033/12 ,  B29K2033/08 ,  B29K2027/06 ,  B29K2023/06

    摘要： Cellular retroreflective sheeting (40) comprises a first film (10) of thermoplastic material which has been formed to define arrays of minute cube-corner reflective elements (12) on one face thereof. The reflective elements are covered with a second thin thermoplastic film (36) and the two films together pass over a patterned roller where a series of sonic welding heads (50) rapidly bond the films together forming small cells (52) of retroreflective cube-corner elements (12) in the pattern of the roller. Because the heat generated in the welding process is localized to the pattern of the roller, cell walls may be formed having narrow thickness yet good bonding of the films is achieved. Further, residual heat does not appreciably transfer to adjacent retroreflective elements (12), therefore, distortion of adjacent elements is minimized and a sheeting (40) construction is achieved having superior brilliance and durability as well as maximum retroreflective capability over a wide angular range of incident light. Also disclosed is a method for forming such sheeting (40).

    摘要翻译： 蜂窝式回射片材（40）包括热塑性材料的第一薄膜（10），其已形成以在其一个面上限定微小立体角反射元件（12）的阵列。 反射元件被第二薄的热塑性薄膜（36）覆盖，并且两个薄膜一起通过图案化辊，其中一系列声波焊接头（50）将薄膜快速地粘合在一起，形成回射立体角的小电池（52） 滚轮图案中的元件（12）。 由于在焊接过程中产生的热定位到辊的图案，所以可以形成具有窄厚度的单元壁，但是实现了薄膜的良好粘合。 此外，残余热不会明显地转移到相邻的回射元件（12），因此相邻元件的变形被最小化并且实现了具有优异的亮度和耐久性以及在广角度范围内的最大回射能力的薄片（40）结构 入射光。 还公开了一种形成这种片材（40）的方法。

    MICROPRISM MATRIX
    7.
    发明申请
    MICROPRISM MATRIX 审中-公开

    公开(公告)号：WO1997004940A1

    公开(公告)日：1997-02-13

    申请号：PCT/JP1996002118

    申请日：1996-07-26

    申请人： NIPPON CARBIDE KOGYO KABUSHIKI KAISHA ,  MIMURA, Ikuo ,  ADACHI, Keiji

    发明人： NIPPON CARBIDE KOGYO KABUSHIKI KAISHA

    IPC分类号： B29C33/38

    CPC分类号： B29D11/00625 ,  B29C33/302 ,  B29C33/3842 ,  B29C33/424 ,  B29L2011/0091 ,  G02B5/124 ,  Y10S425/03

    摘要： A corner cube type retro reflector, and more particularly a microprism matrix which is capable of being applied to the production of a thin, flexible retro reflecting sheet, and which enables the production of a microprism having a high luminance and a high pantoscopicity. This microprism matrix is formed by laminating a plurality of flat plates each of which has two parallel surfaces one of which is provided with V-shaped recesses of a bottom angle of about 90 DEG and roof type projections of an apex angle of about 90 DEG all of which are formed continuously with a predetermined pitch, in such a manner that the apex portions of the roof type projections on one of adjacent flat plates agree with the bottom portions of the V-shaped recesses in the other, characterized in that the microprism matrix is formed so that it includes not less than two different types of roof type projections, and in that the thickness of each flat plate is 0.6-2.0 times as large as the length of a shorter diagonal side of each of the roof type projections.

    摘要翻译： 角立方体型反光镜，特别是微棱镜基体，其能够应用于薄柔性反光片的制造，并且能够生产具有高亮度和高泛拍性的微棱镜。 这种微棱镜基体是通过层叠多个平板而形成的，每个平板具有两个平行的表面，其中一个平面具有大约90度的底角的V形凹槽和大约90°的顶角的屋顶型突起 以预定间距连续地形成，使得相邻的平板之一上的屋顶型突起的顶点与V形凹部的底部一致，其特征在于，微棱镜矩阵 形成为包括不少于两种不同类型的屋顶型突起，并且每个平板的厚度是每个屋顶型突起的较短对角线的长度的0.6-2.0倍。