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公开(公告)号：EP0883820A1
公开(公告)日：1998-12-16
申请号：EP97906593.0
申请日：1997-02-18
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor： ALLEN, Richard, C. , KOTZ, Arthur, L. , CARLSON, Lockwood, W. , NEVITT, Timothy, J. , OUDERKIRK, Andrew, J. , STOVER, Carl, A. , WEBER, Michael, F. , MAJUMDAR, Biswaroop
CPC classification number: G02B5/3008 , G02B1/04 , G02B5/305 , G02B5/3083 , Y10T428/249953 , Y10T428/249955
Abstract: An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.
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公开(公告)号：EP0736188A1
公开(公告)日：1996-10-09
申请号：EP95906084.0
申请日：1994-12-20
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor： OUDERKIRK, Andrew, J. , WEBER, Michael, F. , JONZA, James, M. , STOVER, Carl, A. , COBB, Sanford, Jr. , WORTMAN, David, L. , BENSON, Olester, Jr.
CPC classification number: B32B27/08 , B32B7/12 , B32B27/36 , B32B2250/40 , B32B2307/704 , B32B2367/00 , B32B2457/202 , G02B5/305 , G02F1/133536 , G02F1/13362 , G02F2001/133545
Abstract: A multiple layer reflective polarizer (12) is described. This element is placed between an optical cavity (24) and an LCD module (16) to form an optical display. The reflective polarizer reflects some light into the optical cavity (24) where it is randomized and may ultimately emerge with the correct polarization to be transmitted out of the display.
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公开(公告)号：EP0736196B1
公开(公告)日：2002-07-17
申请号：EP95905914.8
申请日：1994-12-20
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor： OUDERKIRK, Andrew, J. , WEBER, Michael, F. , JONZA, James, M. , STOVER, Carl, A. , COBB, Sanford, Jr. , WORTMAN, David, L. , BENSON, Olester, Jr.
IPC: G02F1/1335
CPC classification number: G02F1/13362 , G02B5/305 , G02B27/283 , G02F1/133536 , G02F2001/133545
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公开(公告)号：EP1047537A2
公开(公告)日：2000-11-02
申请号：EP99901464.0
申请日：1999-01-13
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor： NEAVIN, Terence, D. , HEBRINK, Timothy, J. , STOVER, Carl, A. , LIU, Yaoqi, Joe , NERAD, Bruce, A. , OUDERKIRK, Andrew, J.
IPC: B29C47/70
CPC classification number: B29C47/707 , B29C47/0019 , B29C47/0021 , B29C47/065 , B29C47/862 , B29C47/92 , B29C2947/92647 , B29C2947/92704 , B29C2947/92904 , B29C2947/92923 , G11B7/24
Abstract: Methods and apparatuses are provided for the manufacture of coextruded polymeric multilayer optical films. The multilayer optical films have an ordered arrangement of layers of two or more materials having particular layer thicknesses and a prescribed layer thickness gradient throughout the multilayer optical stack. The methods and apparatuses described allow improved control over individual layer thicknesses, layer thickness gradients, indices of refraction, interlayer adhesion, and surface characteristics of the optical films. The methods and apparatuses described are useful for making interference polarizers, mirrors, and colored films that are optically effective over divers portions of the ultraviolet, visible, and infrared spectra.
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公开(公告)号：EP0883819A1
公开(公告)日：1998-12-16
申请号：EP97902058.0
申请日：1997-01-17
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor： OUDERKIRK, Andrew, J. , CARLSON, Lockwood, W. , KOTZ, Arthur, L. , NEVITT, Timothy, J. , STOVER, Carl, A. , WEBER, Michael, F. , ALLEN, Richard, C. , MAJUMDAR, Biswaroop
IPC: C08J5 , B29C55 , C08L25 , C08L67 , C08L101 , G02B1 , G02B5 , B29K25 , B29K33 , B29K67 , B29L7 , B29L11
CPC classification number: G02B5/3008 , G02B1/04 , G02B5/3083
Abstract: An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.
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Patent Agency Ranking
公开(公告)号：EP0836554A1
公开(公告)日：1998-04-22
申请号：EP96923376.0
申请日：1996-06-20
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor： GILBERT, Laurence, R. , JONZA, James, M. , OUDERKIRK, Andrew, J. , STOVER, Carl, A. , WEBER, Michael, F.
CPC classification number: B32B27/08 , B32B27/36 , B32B2307/5825 , B32B2367/00 , B32B2551/00 , G02B5/208 , G02B5/26 , G02B5/287 , G02B5/305 , Y10S428/91 , Y10T428/24942 , Y10T428/24975 , Y10T428/28 , Y10T428/31786
Abstract: A multilayer polymer film has an optical stack including a plurality of alternating polymer layers with skin layers having mechanical, optical, or chemical properties differing from those of the layers in the optical stack.
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公开(公告)号：EP0883824B1
公开(公告)日：2003-05-02
申请号：EP97916742.6
申请日：1997-02-28
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor： ALLEN, Richard, C. , CARLSON, Lockwood, W. , OUDERKIRK, Andrew, J. , WEBER, Michael, F. , KOTZ, Arthur, L. , NEVITT, Timothy, J. , STOVER, Carl, A. , MAJUMDAR, Biswaroop
IPC: G02B5/30 , G02F1/1335
CPC classification number: G02B5/3083 , G02B5/3008 , G02B5/305
Abstract: An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix in combination with light directing materials to enable control of light emitted from a lighting fixture or display. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film, and the light directing materials are chosen to control the direction of polarized light reflected from or transmitted by the optical film.
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公开(公告)号：EP0883820B1
公开(公告)日：2002-01-09
申请号：EP97906593.5
申请日：1997-02-18
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor： ALLEN, Richard, C. , KOTZ, Arthur, L. , CARLSON, Lockwood, W. , NEVITT, Timothy, J. , OUDERKIRK, Andrew, J. , STOVER, Carl, A. , WEBER, Michael, F. , MAJUMDAR, Biswaroop
CPC classification number: G02B5/3008 , G02B1/04 , G02B5/305 , G02B5/3083 , Y10T428/249953 , Y10T428/249955
Abstract: An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.
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公开(公告)号：EP0883819B1
公开(公告)日：2001-11-14
申请号：EP97902058.3
申请日：1997-01-17
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor： OUDERKIRK, Andrew, J. , CARLSON, Lockwood, W. , KOTZ, Arthur, L. , NEVITT, Timothy, J. , STOVER, Carl, A. , WEBER, Michael, F. , ALLEN, Richard, C. , MAJUMDAR, Biswaroop
CPC classification number: G02B5/3008 , G02B1/04 , G02B5/3083
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公开(公告)号：EP1047551A2
公开(公告)日：2000-11-02
申请号：EP99903030.7
申请日：1999-01-08
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor： HEBRINK, Timothy, J. , MERRILL, William, W. , STOVER, Carl, A.
CPC classification number: B32B27/08 , A61B5/0803 , A61B5/0809 , A61B5/0816 , A61B5/22 , A61N1/08 , A61N1/3627 , A61N1/36514 , A61N1/3704 , B32B7/02 , B32B27/36 , B32B2250/05 , B32B2250/244 , B32B2255/10 , B32B2255/20 , B32B2255/26 , B32B2307/416 , B32B2307/42 , B32B2307/5825 , B32B2307/584 , B32B2307/704 , B32B2457/202 , B32B2551/00 , B32B2551/08 , C08G63/181 , C08G63/199 , C08G63/20 , G02B5/0841 , G02B5/0866 , G02B5/305 , G02B5/3083 , Y10S428/91 , Y10T428/11 , Y10T428/24479 , Y10T428/24612 , Y10T428/24942 , Y10T428/31504 , Y10T428/31786
Abstract: A multilayered polymer film includes a first set of optical layers and a second set of optical layers. The first set of optical layers is made from a polyester which is often birefringent. The polyesters of the first set of optical layers typically have a composition in which 70-100 mol % of the carboxylate subunits are first carboxylate subunits and 0-30 mol % are comonomer carboxylate subunits and 70 to 100 mol % of the glycol subunits are first glycol subunits and 0 to 30 mol % of the glycol subunits are comonomer glycol subunits, where at least 0.5 mol % of the combined carboxylate and glycol subunits are comonomer carboxylate or comonomer glycol subunits. The multilayered polymer film may be used to form, for example, a reflective polarizer or a mirror.
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