WO1999036262A3 - Modified copolyesters and improved multilayer reflective films - Google Patents

Modified copolyesters and improved multilayer reflective films Download PDF

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Publication number
WO1999036262A3
WO1999036262A3 PCT/US1999/000506 US9900506W WO9936262A3 WO 1999036262 A3 WO1999036262 A3 WO 1999036262A3 US 9900506 W US9900506 W US 9900506W WO 9936262 A3 WO9936262 A3 WO 9936262A3
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WO
WIPO (PCT)
Prior art keywords
subunits
mol
carboxylate
multilayer reflective
comonomer
Prior art date
Application number
PCT/US1999/000506
Other languages
French (fr)
Other versions
WO1999036262A2 (en
Inventor
Timothy J Hebrink
William W Merrill
Carl A Stover
Original Assignee
Minnesota Mining & Mfg
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
Application filed by Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Priority to DE69924354T priority Critical patent/DE69924354T2/en
Priority to JP2000540000A priority patent/JP4274696B2/en
Priority to AU23148/99A priority patent/AU2314899A/en
Priority to KR1020007007672A priority patent/KR100554582B1/en
Priority to EP99903030A priority patent/EP1047551B1/en
Publication of WO1999036262A2 publication Critical patent/WO1999036262A2/en
Publication of WO1999036262A3 publication Critical patent/WO1999036262A3/en

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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
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    • C—CHEMISTRY; METALLURGY
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    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
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    • G02B5/00—Optical elements other than lenses
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    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Physiology (AREA)
  • Cardiology (AREA)
  • Biophysics (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Polarising Elements (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Laminated Bodies (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Surface Treatment Of Optical Elements (AREA)

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.
PCT/US1999/000506 1998-01-13 1999-01-08 Modified copolyesters and improved multilayer reflective films WO1999036262A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE69924354T DE69924354T2 (en) 1998-01-13 1999-01-08 MODIFIED COPOLYESTER AND IMPROVED MULTILAYER REFLECTIVE FILM
JP2000540000A JP4274696B2 (en) 1998-01-13 1999-01-08 Modified copolyester and improved multilayer reflective film
AU23148/99A AU2314899A (en) 1998-01-13 1999-01-08 Modified copolyesters and improved multilayer reflective films
KR1020007007672A KR100554582B1 (en) 1998-01-13 1999-01-08 Modified Copolyesters and Improved Multilayer Reflective Films
EP99903030A EP1047551B1 (en) 1998-01-13 1999-01-08 Modified copolyesters and improved multilayer reflective films

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US660198A 1998-01-13 1998-01-13
US09/006,601 1998-01-13

Publications (2)

Publication Number Publication Date
WO1999036262A2 WO1999036262A2 (en) 1999-07-22
WO1999036262A3 true WO1999036262A3 (en) 1999-11-18

Family

ID=21721670

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/000506 WO1999036262A2 (en) 1998-01-13 1999-01-08 Modified copolyesters and improved multilayer reflective films

Country Status (8)

Country Link
US (6) US6352761B1 (en)
EP (2) EP1548045B1 (en)
JP (1) JP4274696B2 (en)
KR (1) KR100554582B1 (en)
CN (1) CN1104325C (en)
AU (1) AU2314899A (en)
DE (2) DE69940961D1 (en)
WO (1) WO1999036262A2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
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