公开(公告)号：MX9708530A

公开(公告)日：1998-02-28

申请号：MX9708530

申请日：1996-04-19

Applicant: MINNESOTA MANING AND MFG COMPA

Inventor： NAGAOKA YOSHIYUKI

IPC: G09F3/02 ,  G02B5/128 ,  G09F13/16 ,  G02B05/128

Abstract: Un material en capas, retrorreflector, de lentes encapsualdos que tiene una capa de union que consiste esencialemnte de una resina de poliuretano termoplástico que tiene una tempertura de reblandecimiento de 70 degree C a 200 degree C. La capa de union se sella a una capa protectora de la superficie que puede transmitir la luz por una multitud de enlaces que forman espacios entre la capa protectora y la capa de union. Los elementos retrorreflectores son parcialmente incrustados en la capa de union e interactuan con el aire en los espacios. Un material en capas, retrorreflector, de lentes encapsulados de esta construccion se puede adherir una supericie de plástico altamente plastificado y mantiene una fuerza de adherencia alta de una duarcion extendida mientras que al mismo tiempo mantiene un buen desempeño retrorreflector.

公开(公告)号：MX9605688A

公开(公告)日：1998-02-28

申请号：MX9605688

申请日：1995-04-25

Applicant: MINNESOTA MINING & MFG

Inventor： HACHEY KATHLEEN A ,  HEDBLOM THOMAS P ,  MAY DAVID C

IPC: G02B05/128

Abstract: El artículo retrorreflectivo comprende microesferas (21) transparentes y pigmentos tanto especulares (31) como difusos (29) dispersos en una capa de aglutinante. La utilizacion de ambos tipos de pigmentos resulta en una retrorreflectividad mejorada sobre una amplia gama de ángulos de entrada que cuando utiliza unicamente uno u otro pigmento solo.

公开(公告)号：MX9706041A

公开(公告)日：1997-11-29

申请号：MX9706041

申请日：1996-01-26

Applicant: MINNESOTA MINING & MFG

Inventor： NELSON LISA FLATT ,  COU HSIN-HSIN ,  KUNZE CHRISTOPHER E

IPC: B32B27/30 ,  B32B27/32 ,  B41M5/00 ,  B41M5/395 ,  B41M5/52 ,  B41M7/00 ,  B60R13/10 ,  C09D123/00 ,  C09D133/06 ,  G02B5/128 ,  G09F3/02 ,  B41M05/38 ,  G02B05/128

Abstract: Se describen composiciones de precursores de transferencia de masa térmica, que se pueden recubrir, adecuadas para producir elementos dadores de transferencia de masa térmica, comprendiendo las composiciones que se pueden recubrir un precursor de ligante de polialquileno, un precursor de ligante acrílico, una cantidad efectiva de un pigmento para proveer el color deseado a una composicion de transferencia de masa térmica usando la composicion que se puede recubrir, y d) un diluyente (preferentemente agua) en el cual el precursor de ligante de polialquileno, precursor de ligante acrílico y pigmento, se encuentran todos dispersados allí. También se describen artículos de señalizacion producidos usando los elementos dadores.

公开(公告)号：MX9705941A

公开(公告)日：1997-10-31

申请号：MX9705941

申请日：1996-01-26

Applicant: MINNESOTA MINING & MFG

Inventor： ORENSTEEN BRUCE D ,  NELSON LISA FLATT ,  LOOK THOMAS F ,  ZWACK JOSEPH R

IPC: B32B7/02 ,  B32B27/30 ,  C08K5/00 ,  C08L101/00 ,  G02B5/128 ,  G09F13/16 ,  G02B05/128

Abstract: Se describen artículos de señalizacion retrorreflectores que comprenden una capa colorante transferida térmicamente de manera directa a una capa superior de un material en capas retrorreflector, la capa superior desprovista de tratamientos de imprimacion y capas receptoras de impresion, extrañas. También se describen sistemas o equipos que comprenden un material en capas de base, retrorreflector en combinacion con un elemento donador de transferencia de masas térmica, los elementos donadores que comprenden un portado4 y una capa colorante adherida al mismo, la capa colorante de los artículos de señalizacion y los elementos donadores que comprenden una sustancia aglutinante y un colorante. También se presentan métodos para producir los artículos de señalizacion empleando los sistemas o equipos.

公开(公告)号：EP0203752A3

公开(公告)日：1988-06-01

申请号：EP86303604

申请日：1986-05-12

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： Porter, Gerald R. c/o Minnesota Mining and ,  Bradshaw, Thomas I. c/o Minnesota Mining and ,  Hockert, Eric N. c/o Minnesota Mining and

IPC: G02B05/128

CPC classification number: G02B5/128 ,  G06K19/14

Abstract: This invention concerns a transparent sheet containing a directional image and method for forming such a sheet. A directional image is created in a transparent sheet comprising a monolayer of microlenses by forming deformations or axial markings in at least some of the microlenses by irradiation with a laser beam. The sheet may further comprise a partially light transmissive mirror disposed behind at least some of the microlenses. The directional images may be formed in transparent sheet which has been applied to a document as an overlay. When viewed under diffuse lighting conditions, the deformations appear as a dark image. The deformations may be formed so that when viewed under retroreflective conditions within a conical field the image is darker than the surrounding background, and when viewed under retroreflective conditions outside the conical field the image is brighter than the surrounding background.

公开(公告)号：EP0196154A3

公开(公告)日：1988-04-20

申请号：EP86300773

申请日：1986-02-05

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： Grunzinger, Raymond E. Minnesota Mining

IPC: G02B05/128 ,  C08G18/62 ,  C08G18/78 ,  C08G18/79 ,  C09D05/33

CPC classification number: G02B5/128 ,  C08G18/6229 ,  C08G18/75 ,  C08G18/765 ,  C08G18/7831 ,  C08G18/792 ,  C08G18/8061

Abstract: The novel retroreflective sheeting has a flat transparent top coat which is as tough and as resistant to solvents and abrasion as are alkyl resins, and as weather resistant as are acrylic polyesters. That top coat is made from a mixture of hydroxy-functional acrylic polyol and a curing agent which is an aliphatic polyfunctional isocyanate such as the biuret of 1,6-hexamethylene diisocyanate. The retroreflective sheeting may have a dual-layer top coat, the outer layer being relatively hard to provide good resistance to solvents, abrasion and weathering, and the inner layer being softer to make the sheeting more conformable.

公开(公告)号：EP0045979A3

公开(公告)日：1982-03-10

申请号：EP81106897

申请日：1981-08-05

Applicant: Erwin Sick GmbH Optik-Elektronik

Inventor： Sick, Erwin ,  Fetzer, Günter ,  Winterer, Hermann

IPC: G02B05/128

CPC classification number: G02B5/128

Abstract: A retroreflector consists of a support surface 12 coated with a layer 11 of small retroreflecting particles such as glass spheres. The support surface comprises a plurality of regularly repeating, like structural elements 13 which are inclined to the overall plane of the retroreflector The surface elements 13 can be of various shapes and serve to increase the angular range over which retroreflection can occur. The optical characteristics of the proposed retroreflectors can be tailored so that they are eminently suitable for use in certain beam scanning applications such as continuous monitoring of doorways and windows by an optical beam scanning device located at one corner thereof in order to detect, for example, intruders.

Abstract translation: PCT No.PCT / EP81 / 00115 Sec。 371日期1982年4月2日 102（e）日期1982年4月2日PCT提交1981年8月6日PCT公布。 出版物WO82 / 00528 日期：1982年2月18日。后向反射器由涂覆有诸如玻璃球的小回射颗粒层11的支撑表面12组成。 支撑表面包括与后向反射器的整个平面倾斜的多个规则重复的相同的结构元件13。 表面元件13可以具有各种形状，并且用于增加可发生回射的角度范围。 所提出的后向反射器的光学特性可以被定制，使得它们非常适用于某些光束扫描应用，例如通过位于其一个角上的光束扫描装置连续监视门窗和窗口，以便检测例如， 入侵者。

公开(公告)号：EP0255251A3

公开(公告)日：1988-09-21

申请号：EP87306024

申请日：1987-07-08

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： Bingham, Wallace K. c/o Minnesota Mining and

IPC: G02B05/128

CPC classification number: G02B5/128

Abstract: Retroreflective construction comprising a monolayer of microspheres (2) with associated dielectric mirrors (10) which are hemispherically surrounded by tangentially-oriented, preferably contour-conforming, reflective pigment nacreous flakes. The dielectric mirrors (10) and reflective nacreous pigment flakes cooperate additively substantially without interfering with each other to provide a high brightness retroreflective sheet. The novel sheets retain much of their reflectivity after several launderings or drycleanings and, in some embodiments, can be made very flexible, making them well-suited for use as reflective fabrics.

公开(公告)号：EP0171252A3

公开(公告)日：1988-06-08

申请号：EP85305412

申请日：1985-07-30

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： Orensteen, Bruce D. c/o Minnesota Mining and ,  Bradshaw, Thomas I. c/o Minnesota Mining and

IPC: G02B05/128 ,  G06K19/08 ,  G07F07/08

CPC classification number: G07F7/086 ,  G02B5/128 ,  G06K19/14

Abstract: The novel transparent sheet contains at least one authenticating retroreflective image, each image being viewable from the front of the sheet, but only across a cone which preferably is less than 90°. The novel sheet may be adhesively bonded over information areas of a document for authenticating purposes. When such an authenticating image is viewable only from an angle appreciably different from angles at which the document is ordinarily viewed, the image is obscure in that users of the document will notice the authenticating image only when confirming the authenticity of the document. Usually each authenticating image is viewable only across a cone of about 10 to 20 degrees.

公开(公告)号：EP0097467A3

公开(公告)日：1985-12-04

申请号：EP83303387

申请日：1983-06-10

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： May, David C. Minnesota Mining and ,  Bailey, Terry R. Minnesota Mining and

IPC: G02B05/128

CPC classification number: G09F13/16 ,  Y10S428/913 ,  Y10T156/1043 ,  Y10T428/24372 ,  Y10T428/2438 ,  Y10T428/2982 ,  Y10T428/2991

Abstract: Retroreflective sheeting (10) is provided in which a specularly reflective layer (16) within the sheeting has extensive discontinuities (17) which make the sheeting permeable to vapor, thereby allowing release of vapors from a substrate (18) to which the sheeting is applied. In the embodiment of the drawing, the transparent microspheres (11) are supported as a monolayer in transparent binder layer (12), and transparent spacer layer (14) places the spheres at the approximate focal point for light rays impinging on the reflective sheeting and passing through the microspheres to the reflective layer. Top layer (13) forms a smooth top surface and aids in wet reflection.