ITRM940605A0 - "impiego di policarbonati speciali per la preparazione di articoli ottici" - Google Patents

"impiego di policarbonati speciali per la preparazione di articoli ottici"

Info

Publication number
ITRM940605A0
ITRM940605A0 ITRM940605A ITRM940605A ITRM940605A0 IT RM940605 A0 ITRM940605 A0 IT RM940605A0 IT RM940605 A ITRM940605 A IT RM940605A IT RM940605 A ITRM940605 A IT RM940605A IT RM940605 A0 ITRM940605 A0 IT RM940605A0
Authority
IT
Italy
Prior art keywords
preparation
special polycarbonates
optical items
items
optical
Prior art date
Application number
ITRM940605A
Other languages
English (en)
Inventor
Wilfried Haese
Friedrich Bruder
Ralf Pakull
Jurgen Kirsch
Hartmut Lower
Original Assignee
Bayer Ag
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 DE4416325A external-priority patent/DE4416325C2/de
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of ITRM940605A0 publication Critical patent/ITRM940605A0/it
Publication of ITRM940605A1 publication Critical patent/ITRM940605A1/it
Application granted granted Critical
Publication of IT1273984B publication Critical patent/IT1273984B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2534—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/04—Aromatic polycarbonates
    • C08G64/06—Aromatic polycarbonates not containing aliphatic unsaturation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
ITRM940605A 1993-09-22 1994-09-22 Policarbonati speciali e loro impiego per la preparazione di articoli ottici IT1273984B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4332169 1993-09-22
DE4416325A DE4416325C2 (de) 1993-09-22 1994-05-09 Spezielle Polycarbonate und ihre Verwendung zur Herstellung optischer Artikel

Publications (3)

Publication Number Publication Date
ITRM940605A0 true ITRM940605A0 (it) 1994-09-22
ITRM940605A1 ITRM940605A1 (it) 1996-03-22
IT1273984B IT1273984B (it) 1997-07-14

Family

ID=25929764

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM940605A IT1273984B (it) 1993-09-22 1994-09-22 Policarbonati speciali e loro impiego per la preparazione di articoli ottici

Country Status (4)

Country Link
JP (1) JPH07109342A (it)
BE (1) BE1009103A5 (it)
IT (1) IT1273984B (it)
NL (1) NL9401529A (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3638837B2 (ja) * 1999-11-19 2005-04-13 帝人化成株式会社 ポリカーボネート樹脂フィルム
JP4739571B2 (ja) * 2001-04-18 2011-08-03 帝人化成株式会社 延伸フィルム
WO2005052025A1 (ja) 2003-11-26 2005-06-09 Mitsubishi Gas Chemical Company, Inc. ポリカーボネート共重合体及びその製造方法
CN103257376B (zh) 2006-06-05 2015-12-09 三菱瓦斯化学株式会社 光学透镜
JP5526545B2 (ja) 2006-08-18 2014-06-18 三菱瓦斯化学株式会社 ポリカーボネート樹脂およびこれを用いた光学フィルム
WO2008143205A1 (ja) 2007-05-21 2008-11-27 Mitsubishi Gas Chemical Company, Inc. ポリカーボネート樹脂およびその製造方法
JP5332696B2 (ja) 2009-02-17 2013-11-06 三菱瓦斯化学株式会社 ポリカーボネート樹脂組成物及びその製造方法
JP5451120B2 (ja) * 2009-03-12 2014-03-26 キヤノン株式会社 ２価アルコール類、ポリカーボネート樹脂、ポリエステル樹脂、それらからなる成形体、および光学素子
EP2406208B1 (en) 2009-03-12 2014-05-07 Canon Kabushiki Kaisha Naphthalene and fluorene diol derivatives and polycarbonate or polyester resins
CN108329464B (zh) * 2012-11-07 2021-05-11 三菱瓦斯化学株式会社 聚碳酸酯树脂、其制造方法及光学成形体

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182336A (ja) * 1987-01-23 1988-07-27 Nippon Steel Corp 耐熱性ポリカ−ボネ−トの製造法
JPH02304741A (ja) * 1989-05-19 1990-12-18 Hitachi Ltd 光ディスクおよびその製造方法

Also Published As

Publication number Publication date
IT1273984B (it) 1997-07-14
BE1009103A5 (fr) 1996-11-05
JPH07109342A (ja) 1995-04-25
ITRM940605A1 (it) 1996-03-22
NL9401529A (nl) 1995-04-18

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970909