公开(公告)号：EP0200521A3

公开(公告)日：1988-06-01

申请号：EP86303205

申请日：1986-04-28

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： Bergeson, David L. c/o Minnesota Mining and ,  Pavelka, Lee A. c/o Minnesota Mining and ,  Mielke, Barbara A. c/o Minnesota Mining and

IPC: G02B05/124

CPC classification number: G02B5/124 ,  G02B5/128 ,  Y10S428/91 ,  Y10S428/913 ,  Y10T428/24579 ,  Y10T428/24612 ,  Y10T428/252

Abstract: An improved, delamination-resistant, cellular retroreflective sheeting comprising: 1) a base sheet having a layer of retroreflective elements disposed over one of its surfaces, 2) a polymeric cover film disposed in spaced relation from the layer of retroreflective elements, and 3) a network of narrow intersecting bonds extending between said cover film and base sheet to adhere the cover film and base sheet together and form a plurality of cells within which retroreflective elements are hermetically sealed. The cover film, which comprises a continuous polymeric phase and a discontinuous polymeric phase, is biaxially oriented such that the discontinuous polymeric phase is in the form of minute disks distributed substantially uniformly throuout the film. The retoreflective sheeting is resistant to delamination because under the influence of forces that tend to remove the cover film from the base sheet, the cover flim si generally removed only at the edge of the sheeting. e.g., from the front row of cells, but no further, Most of the sheeting remains intact and ready for continued utility.

公开(公告)号：EP0029611A3

公开(公告)日：1982-11-17

申请号：EP80107347

申请日：1980-11-25

Applicant: D. Swarovski & Co.

Inventor： Schwab, Kurt, Dr.

IPC: G02B05/124 ,  B29D11/00

CPC classification number: G02B5/126 ,  B29D11/00605

公开(公告)号：WO1999001786A1

公开(公告)日：1999-01-14

申请号：PCT/US1997021448

申请日：1997-11-24

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  SMITH, Kenneth, L. ,  BENSON, Gerald, M.

IPC: G02B05/124

CPC classification number: G02B5/124 ,  Y10S425/808

Abstract: A retroreflective sheeting includes a first array of cube corner element opposing pairs and a second array of cube corner element opposing pairs. The symmetry axes of the cube corner elements in the first and second arrays are tilted in a backward direction at an angle of about 12 DEG to about 30 DEG from an axis normal to a base surface. The second array of cube corner elements is oriented approximately perpendicular to the first array to yield a retroreflective article providing generally uniform total light return about a 360 DEG range of orientation angles and/or a minimum total light return of about 5 % across such 360 DEG range. Also disclosed is a mold assembly suitable for use in forming the present retroreflective sheeting and a method of making a retroreflective article using the mold.

Abstract translation: 定向反射片包括立方角元件相对对的第一阵列和立体角元件相对对的第二阵列。 第一和第二阵列中的立体角元件的对称轴线从垂直于基面的轴线以约12°至约30°的角度向后倾斜。 立体角元件的第二阵列定向成大致垂直于第一阵列，以产生逆向反射制品，其在360度范围的取向角度提供大致均匀的总光返回率，和/或在360度范围内提供约5％的最小总光返回率 范围。 还公开了一种适合用于形成本发明的逆反射片材的模具组件和使用该模具制造回射制品的方法。

公开(公告)号：WO1997041466A1

公开(公告)日：1997-11-06

申请号：PCT/US1997006019

申请日：1997-04-04

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  MARECKI, Paul, E. ,  SHUSTA, Jeanine, M. ,  ATKINSON, Matthew, R. ,  FREY, Cheryl, M. ,  BENSON, Olester, Jr.

IPC: G02B05/124

CPC classification number: G02B5/124 ,  A41D31/0094

Abstract: A method of making a glittering cube-corner sheeting, which method comprises: a) providing a first retroreflective sheeting that includes an array of cube-corner elements arranged in a repeating pattern; and b) exposing the first retroreflective sheeting to heat, pressure, or a combination thereof to produce a second retroreflective sheeting that comprises an array of cube-corner elements that are randomly tilted, the cube-corner elements becoming randomly tilted from the heat, pressure or the combination thereof other than through securing a seal film to the array that is arranged in the repeating pattern; or which method may comprise: forming a cube-corner sheeting from a mold that has a structured surface that includes a multiplicity of cube-corner elements, the cube-corner elements each including a base plane and three faces, the cube-corner elements being arranged such that the base planes do not reside in the same plane when the sheeting is laid flat.

Abstract translation: 一种制造闪闪发光的立体角片材的方法，该方法包括：a）提供包括以重复图案布置的立体角元件阵列的第一回射片材; 以及b）将所述第一回射片材暴露于热，压力或其组合以产生包括随机倾斜的立体角元件阵列的第二回射片材，所述立体角元件从热，压力随机地倾斜 或其组合，而不是通过将密封膜固定到以重复图案布置的阵列; 或者哪个方法可以包括：从具有包括多个立体角元件的结构化表面的模具形成立体角片材，所述立体角元件各自包括基面和三个面，所述立体角元件为 布置成使得当平板布置时基底不位于同一平面中。

公开(公告)号：WO1996035969A1

公开(公告)日：1996-11-14

申请号：PCT/US1996005629

申请日：1996-04-22

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  ARAKI, Yoshinori ,  YOKOYAMA, Masami

IPC: G02B05/124

CPC classification number: G02B5/128 ,  G02B5/124 ,  Y10S428/913 ,  Y10T428/23 ,  Y10T428/3154 ,  Y10T428/31928

Abstract: A retroreflective article that comprises: (a) a retroreflective layer having first and second major surfaces; and (b) a cover layer juxtaposed against the first major surface, characterized in that: the cover layer comprises a surface layer, an optional intermediate layer, and a back layer, with the provisos that: (i) when the intermediate layer is present in the cover layer the intermediate layer contains a vinylidene fluoride base polymer as a primary component, and the surface layer and back layer each comprise a methyl methacrylate base polymer as a primary component; and (ii) when the intermediate layer is absent from the cover layer, the surface layer comprises a methyl methacrylate base polymer (A) and a vinylidene fluoride base polymer (F) in a weight ratio A:F of 55:45 to 95:5, and the back layer comprises a methyl methacrylate base polymer and a vinylidene fluoride base polymer with the vinylidene fluoride base polymer being the primary component.

Abstract translation: 一种逆反射制品，包括：（a）具有第一和第二主表面的回射层; 和（b）与第一主表面并列的覆盖层，其特征在于：覆盖层包括表面层，任选的中间层和背层，条件是：（i）当存在中间层时 在覆盖层中，中间层含有偏二氟乙烯基聚合物作为主要组分，表面层和背层各自包含甲基丙烯酸甲酯基聚合物作为主要组分; 和（ii）当覆盖层不存在中间层时，表面层包含甲基丙烯酸甲酯基聚合物（A）和偏二氟乙烯基聚合物（F），其重量比A:F为55:45至95： 5，背层包含甲基丙烯酸甲酯基聚合物和偏二氟乙烯基聚合物，其中偏二氟乙烯基聚合物是主要成分。

公开(公告)号：WO1996015465A1

公开(公告)日：1996-05-23

申请号：PCT/US1995014298

申请日：1995-11-02

Applicant: REFLEXITE CORPORATION

Inventor： REFLEXITE CORPORATION ,  WALTER, Helmut

IPC: G02B05/124

CPC classification number: G02B5/124 ,  E01F9/553 ,  Y10S425/808 ,  Y10T29/49616

Abstract: A retroreflective structure and a method for forming the structure are disclosed. The structure has a window side and a facet side. The facet side has a plurality of steps with treads and risers intersecting at an angle. The risers include an array of retroreflective elements. Preferably, the elements are cube-corner prisms.

Abstract translation: 公开了一种逆反射结构和形成该结构的方法。 该结构具有窗口侧和小面侧。 小平面具有多个台阶，胎面和提升板以一定角度相交。 立管包括一系列回射元件。 优选地，元件是立体角棱镜。

公开(公告)号：WO1995035515A2

公开(公告)日：1995-12-28

申请号：PCT/US1995007883

申请日：1995-06-21

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  OUDERKIRK, Andrew, J. ,  BENSON, Olester, Jr. ,  DARVELL, Wayne, K. ,  DUNN, Douglas, S. ,  LAINE, Tanya, M. ,  MCCLURE, Donald, J. ,  MILES, Lynette, M. ,  SERBUS, Thomas, F. ,  WINDORSKI, David, C. ,  HOYLE, Charles, D.

IPC: G02B05/124

CPC classification number: G02B5/045 ,  G02B5/00 ,  H01J29/89 ,  H01J2229/8905 ,  H01J2229/8926 ,  Y10S283/901 ,  Y10S428/913 ,  Y10T156/10 ,  Y10T428/24364 ,  Y10T428/24521 ,  Y10T428/24545 ,  Y10T428/2457 ,  Y10T428/24612 ,  Y10T428/24777

Abstract: A composite including a polymeric film having a first generally planar major surface and an opposite second major surface defined by a multiplicity of elongate parallel contiguous ridge portions. The ridge portions each have a generally triangular cross section and elongate obscured and transmitting second major surface portions intersecting at the apex of the ridge with the obscured second major surface portion being on the side of the ridge generally facing a first end of the sheet and the transmitting second major surface portions being on the side of the ridge portions adjacent a second end of the sheet. The film can provide visual transmission between its first major surface and the transmitting second major surface portions while coatings along the obscured second major surface portions prevent viewing of visual images through the film; whereas the composite can also provide light transmission between the first major surface and the transmitting second major surface portions, while the coatings along the obscured second major surface portions restrict light transmission.

Abstract translation: 一种复合材料，其包括具有第一大致平面的主表面和由多个细长的平行邻接的脊部分限定的相对的第二主表面的聚合物膜。 脊部各自具有大致三角形的横截面，并且细长的遮蔽和透射的第二主表面部分在脊的顶点相交，而遮蔽的第二主表面部分在大致面向片材的第一端的脊的侧面上，并且 透过与所述片的第二端相邻的所述脊部侧的第二主表面部分。 该膜可以在其第一主表面和透射第二主表面部分之间提供视觉传输，同时沿着模糊的第二主表面部分的涂层阻止通过膜观察视觉图像; 而复合材料还可以在第一主表面和透射第二主表面部分之间提供光透射，同时沿着遮蔽的第二主表面部分的涂层限制光透射。

公开(公告)号：WO1995011468A1

公开(公告)日：1995-04-27

申请号：PCT/US1994011945

申请日：1994-10-20

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  BACON, Chester, A., Jr. ,  BENSON, Gerald, M.

IPC: G02B05/124

CPC classification number: B29C39/148 ,  G02B5/124 ,  Y10S428/913 ,  Y10T156/1089 ,  Y10T428/24479 ,  Y10T428/24521 ,  Y10T428/2457 ,  Y10T428/24612 ,  Y10T428/24942

Abstract: Conformable cube corner retroreflective sheetings (10c) comprising a plurality of discrete cube corner segments (12) which are conformably bonded together, each cube corner segment (12) comprising a plastic body portion (62) having a substantially planar front major surface and at least one minute cube corner retroreflective element projecting rearwardly from the body portion and defining a cube corner point side of the cube corner segment. The peripheries of the cube corner segments can be defined by a plurality of separations (50) extending from the cube corner point sides to the front major surfaces, the separations being disposed between adjacent cube corner segments. Adjacent cube corner segments are conformably bonded together in the sense that they are either: (1) separated by a gap of less than about 1 millimeter and bonded together through a conformable carrier layer (52); or (2) separated by a gap which is substantially filled with a conformable resin that bonds the side walls of adjacent cube corner segments together (66). Alternatively a conformable cube corner retroreflective sheeting can comprise a plurality of connecting bridges (70) disposed between adjacent cube corner segments, the connecting bridges being at least one of fractured and frangible, and spanning grooves which extend vertically from the cube corner point sides toward the front major surfaces and terminate at the connecting bridges. Also, methods for making such conformable sheetings.

Abstract translation: 每个立方体角段（12）包括塑料主体部分（62），所述塑料主体部分（62）具有基本上平面的前主表面，并且至少 一分钟的立体角回射元件从主体部分向后突出并且限定立体角部分的立方角点侧。 立体角段的周边可以由从立方角点侧延伸到前主表面的多个间隔（50）限定，分离设置在相邻的立体角段之间。 相邻的立体角段在一致意义上是一致的，它们是：（1）通过小于约1毫米的间隙隔开并通过适形的载体层（52）结合在一起; 或（2）由间隙分开，所述间隙基本上填充有将相邻的立体角段的侧壁结合在一起的适形树脂（66）。 或者，一致的立方角回射片可以包括设置在相邻的立体角段之间的多个连接桥（70），连接桥是断裂和易碎的至少一个，以及从立方角点侧向着垂直方向延伸的跨越凹槽 前主表面并终止于连接桥。 另外，制造这种贴合片的方法。

公开(公告)号：WO1995011465A2

公开(公告)日：1995-04-27

申请号：PCT/US1994011942

申请日：1994-10-20

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  BENSON, Gerald, M. ,  SMITH, Kenneth, L.

IPC: G02B05/124

CPC classification number: G02B5/124 ,  Y10T29/49996 ,  Y10T409/303752

Abstract: A method is disclosed for manufacturing a cube corner article (191) comprising the steps of providing a machinable substrate material suitable for forming reflective surfaces, and creating a plurality of geometric structures including cube corner elements (198-203) in the substrate. The step of creating the cube corner elements (198-204) comprises directly machining at least three sets of parallel grooves (197, 196, 195) in the substrate so that only one side of at least one groove in at least one groove set forms cube corner elementoptical surfaces.

Abstract translation: 公开了一种用于制造立体角件（191）的方法，包括以下步骤：提供适于形成反射表面的可加工的基底材料，以及在基底中产生包括立体角元件（198-203）的多个几何结构。 形成立体角元件（198-204）的步骤包括在衬底中直接加工至少三组平行的凹槽（197,196,195），使得至少一个凹槽组中的至少一个凹槽的一侧形成 立方体角元素光学表面。

公开(公告)号：WO1994014091A1

公开(公告)日：1994-06-23

申请号：PCT/DE1993001180

申请日：1993-12-10

Applicant: GUBELA, Hans-Erich, Sr.

IPC: G02B05/124

CPC classification number: G02B5/124 ,  F21V5/02

Abstract: The present invention relates to a body or component with a surface having a micro-double triad. Said body or component has a plurality of adjacent micro-double triads (25) on at least one surface having a hexagonal cross-section and six triangular partial surfaces which form a hexagonal pyramid or truncated pyramid, and to complete a rhombic body there are adjacent single triads (24, 26) on two opposite sides of the hexagon which have three partial surfaces forming a pyramid with the tips (8 or 9) of the pyramids.