WO2005052656A3 - Highly reflective optical film of voided polyester for use in displays - Google Patents

Highly reflective optical film of voided polyester for use in displays Download PDF

Info

Publication number
WO2005052656A3
WO2005052656A3 PCT/US2004/037270 US2004037270W WO2005052656A3 WO 2005052656 A3 WO2005052656 A3 WO 2005052656A3 US 2004037270 W US2004037270 W US 2004037270W WO 2005052656 A3 WO2005052656 A3 WO 2005052656A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical film
reflective optical
displays
highly reflective
voided polyester
Prior art date
Application number
PCT/US2004/037270
Other languages
French (fr)
Other versions
WO2005052656A2 (en
Inventor
Thomas Miles Laney
Kenneth William Best Jr
Robert Paul Bourdelais
Original Assignee
Eastman Kodak Co
Thomas Miles Laney
Kenneth William Best Jr
Robert Paul Bourdelais
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/954,003 external-priority patent/US7273640B2/en
Application filed by Eastman Kodak Co, Thomas Miles Laney, Kenneth William Best Jr, Robert Paul Bourdelais filed Critical Eastman Kodak Co
Priority to JP2006541241A priority Critical patent/JP2007512578A/en
Publication of WO2005052656A2 publication Critical patent/WO2005052656A2/en
Publication of WO2005052656A3 publication Critical patent/WO2005052656A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B32B27/205—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents the fillers creating voids or cavities, e.g. by stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/0808—Mirrors having a single reflecting layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/416—Reflective
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/202—LCD, i.e. liquid crystal displays
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

A reflective optical film comprises a layer containing a polyester voided with inorganic particles such as barium sulfate in a size and an amount sufficient to provide a visible light reflectivity of at least 93%, a void volume of 40 to 70%, the film at least (1) having a thickness of less than 150 mm, or (2) containing UV particles in amounts sufficient to provide a UV light reflectivity of less than 40 %.
PCT/US2004/037270 2003-11-21 2004-11-09 Highly reflective optical film of voided polyester for use in displays WO2005052656A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006541241A JP2007512578A (en) 2003-11-21 2004-11-09 Highly reflective optical film

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US71890203A 2003-11-21 2003-11-21
US10/718,902 2003-11-21
US10/954,003 2004-09-29
US10/954,003 US7273640B2 (en) 2003-11-21 2004-09-29 Highly reflective optical element

Publications (2)

Publication Number Publication Date
WO2005052656A2 WO2005052656A2 (en) 2005-06-09
WO2005052656A3 true WO2005052656A3 (en) 2005-07-28

Family

ID=34636730

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/037270 WO2005052656A2 (en) 2003-11-21 2004-11-09 Highly reflective optical film of voided polyester for use in displays

Country Status (3)

Country Link
JP (1) JP2007512578A (en)
KR (1) KR20060120124A (en)
WO (1) WO2005052656A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008127738A1 (en) * 2007-04-16 2008-10-23 E. I. Du Pont De Nemours And Company Reflective article
WO2011062836A1 (en) * 2009-11-18 2011-05-26 3M Innovative Properties Company Multi-layer optical films
GB201019212D0 (en) * 2010-11-12 2010-12-29 Dupont Teijin Films Us Ltd Polyester film
GB2523859B (en) 2014-08-01 2016-10-19 Dupont Teijin Films U S Ltd Partnership Polyester film assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5672409A (en) * 1991-01-22 1997-09-30 Toray Industries, Inc. Polyester film reflector for a surface light source
US5710856A (en) * 1995-01-27 1998-01-20 Mitsui Toatsu Chemicals, Inc. Light reflective sheet and light reflector using it
EP1302788A1 (en) * 2000-07-12 2003-04-16 Toray Industries, Inc. White film for surface light source reflecting members

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3617535B2 (en) * 1993-12-21 2005-02-09 三井化学株式会社 Light reflector for backlight unit of liquid crystal display device
JP3870731B2 (en) * 2000-07-12 2007-01-24 東レ株式会社 White film for surface light source reflector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5672409A (en) * 1991-01-22 1997-09-30 Toray Industries, Inc. Polyester film reflector for a surface light source
US5710856A (en) * 1995-01-27 1998-01-20 Mitsui Toatsu Chemicals, Inc. Light reflective sheet and light reflector using it
EP1302788A1 (en) * 2000-07-12 2003-04-16 Toray Industries, Inc. White film for surface light source reflecting members

Also Published As

Publication number Publication date
KR20060120124A (en) 2006-11-24
JP2007512578A (en) 2007-05-17
WO2005052656A2 (en) 2005-06-09

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