公开(公告)号：EP2374032A4

公开(公告)日：2017-07-26

申请号：EP09835747

申请日：2009-12-22

申请人： 3M INNOVATIVE PROPERTIES CO

发明人： MERRILL WILLIAM WARD ,  DUNN DOUGLAS S ,  JOHNSON STEPHEN A ,  YUST DAVID T

IPC分类号： G02B5/30 ,  B42D25/23 ,  B42D25/24 ,  B42D25/391 ,  G02B5/08 ,  G02B5/28 ,  G02F1/1335 ,  G02F1/13363

CPC分类号： G02B5/3041 ,  B42D25/23 ,  B42D25/24 ,  B42D25/391 ,  G02B5/0816 ,  G02B5/0841 ,  G02B5/285 ,  G02B5/287 ,  G02B5/30 ,  G02B5/305 ,  G02B5/3083 ,  G02B27/28 ,  G02F1/133536 ,  G02F1/13363 ,  G02F2001/133521 ,  Y10T428/24942

摘要： A reflective film includes interior layers arranged to selectively reflect light by constructive or destructive interference, the layers extending from a first zone to a second zone of the film. The film has a first thickness and the interior layers provide a first reflective characteristic in the first zone; the film has a second thickness and the interior layers provide a second reflective characteristic in the second zone. The difference between the first and second reflective characteristics is not substantially attributable to any difference between the first and second thicknesses, which difference may be zero. Rather, the difference in the reflective characteristics is substantially attributable to reduced birefringence of at least some of the interior layers in one zone relative to the other zone. The film may also incorporate absorbing agents to assist in the manufacture or processing of the film. Related methods and articles are also disclosed.

摘要翻译： 反射膜包括布置成通过相长或相消干涉来选择性地反射光的内层，所述层从膜的第一区域延伸到第二区域。 该膜具有第一厚度并且内层在第一区域中提供第一反射特性; 该膜具有第二厚度并且内层在第二区域中提供第二反射特性。 第一和第二反射特性之间的差异基本上不归因于第一和第二厚度之间的任何差异，该差异可以为零。 相反，反射特性的差异主要归因于一个区域中的至少一些内层相对于另一个区域的双折射率降低。 该膜还可以包含吸收剂以协助膜的制造或加工。 还公开了相关的方法和文章。

公开(公告)号：EP2714778A4

公开(公告)日：2014-12-24

申请号：EP12792767

申请日：2012-05-22

申请人： 3M INNOVATIVE PROPERTIES CO

发明人： RICHTER KARL B ,  DUNN DOUGLAS S ,  WEISS DOUGLAS E

IPC分类号： C08J7/04 ,  B05D3/06 ,  C08F2/46 ,  C08F2/54 ,  C08J3/28 ,  C08J5/00 ,  C08J7/18 ,  C09D133/10 ,  C09J133/10

CPC分类号： C09D133/10 ,  B05D3/068 ,  B05D2252/04 ,  B05D2502/00 ,  C08F2/54 ,  C09J133/10 ,  Y10T428/2852

公开(公告)号：EP2588316A4

公开(公告)日：2014-02-26

申请号：EP11801372

申请日：2011-06-30

申请人： 3M INNOVATIVE PROPERTIES CO

发明人： DUNN DOUGLAS S ,  MERRILL WILLIAM WARD ,  MARKOWICZ PRZEMYSLAW P

IPC分类号： B32B27/20 ,  B32B7/00 ,  B32B7/02 ,  B32B7/10 ,  B32B7/12 ,  B32B9/00 ,  B32B27/00 ,  B32B27/08 ,  B32B27/14 ,  B32B27/18 ,  B32B27/30 ,  B32B27/32 ,  B32B27/36

CPC分类号： G03F7/095 ,  B32B7/12 ,  B32B27/08 ,  B32B27/18 ,  B32B27/20 ,  B32B27/24 ,  B32B27/32 ,  B32B27/36 ,  B32B27/365 ,  B32B27/40 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/30 ,  B32B2307/4026 ,  B32B2307/41 ,  B32B2307/416 ,  B32B2307/42 ,  B32B2425/00 ,  B32B2519/00 ,  B32B2554/00 ,  B41M5/34 ,  B41M5/42 ,  B41M5/46 ,  B41M5/465

摘要： Multi-layer articles are described that are capable of forming color images. The articles include at least six layers, four thermally activatable layers (layers 1-4) and two blocking layers (layer 5 and 6). The layers are arranged such that layer 5 is disposed between layers 1 and 2 and layer 6 is disposed between layers 3 and 4. Thermally activatable layers 1 and 2 are activatable upon exposure to light of a first write wavelength, and blocking layer 5 is adapted to at least partially block light of the first write wavelength. Thermally activatable layers 3 and 4 are activatable upon exposure to light of a second write wavelength, and blocking layer 6 is adapted to at least partially block light of the second write wavelength. At least one, and possibly all of the thermally activatable layers include a light to heat convertor composition and a color changing compound. Some of the thermally activatable layers may be a group of layers arranged to selectively reflect light by constructive or destructive interference to provide a first reflective characteristic, the group of layers also having a first absorption characteristic suitable to, upon exposure to light comprising a write wavelength, absorptively heat the first group of layers by an amount sufficient to change the first reflective characteristic to a second reflective characteristic while maintaining the structural integrity of the group of layers.

公开(公告)号：EP1963892A4

公开(公告)日：2013-02-20

申请号：EP06845527

申请日：2006-12-15

申请人： 3M INNOVATIVE PROPERTIES CO

发明人： DEVOE ROBERT J ,  PAOLUCCI DORA M ,  SYKORA CRAIG R ,  BALLEN TODD A ,  DUNN DOUGLAS S ,  FLORCZAK JEFFREY M ,  LEATHERDALE CATHERINE A

IPC分类号： G02B3/00 ,  B29D11/00 ,  G02B3/04

CPC分类号： G02B3/0031 ,  B29D11/00153 ,  B29D11/00365 ,  G02B3/04

公开(公告)号：EP2280823A4

公开(公告)日：2011-05-04

申请号：EP09747169

申请日：2009-05-01

申请人： 3M INNOVATIVE PROPERTIES CO

发明人： WU PINGFAN ,  DUNN DOUGLAS S ,  VOGEL DENNIS E ,  BUSMAN STANLEY C

IPC分类号： B41M5/30 ,  B41M5/34 ,  G03C1/73

CPC分类号： C09D5/26 ,  B41M5/30 ,  B41M5/34 ,  C09D7/41 ,  C09D11/00 ,  G03C1/732

摘要： Methods for generating a color image are provided which include a multi-layer construction in which at least one of the layers is a thermally activatable layer that includes a thermally activatable composition. The thermally activatable composition includes a non-linear light to heat converter composition and a color forming compound. Upon activation with a light source an image forms.