IT1104626B - Elementi di strumenti ottici a base di policarbonato - Google Patents

Elementi di strumenti ottici a base di policarbonato

Info

Publication number
IT1104626B
IT1104626B IT47588/78A IT4758878A IT1104626B IT 1104626 B IT1104626 B IT 1104626B IT 47588/78 A IT47588/78 A IT 47588/78A IT 4758878 A IT4758878 A IT 4758878A IT 1104626 B IT1104626 B IT 1104626B
Authority
IT
Italy
Prior art keywords
polycarbonate
elements
based optical
optical instruments
instruments
Prior art date
Application number
IT47588/78A
Other languages
English (en)
Italian (it)
Other versions
IT7847588A0 (it
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
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of IT7847588A0 publication Critical patent/IT7847588A0/it
Application granted granted Critical
Publication of IT1104626B publication Critical patent/IT1104626B/it

Links

Classifications

    • 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
    • G02B1/041—Lenses

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)
  • Lenses (AREA)
IT47588/78A 1977-01-13 1978-01-11 Elementi di strumenti ottici a base di policarbonato IT1104626B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2701173A DE2701173C2 (de) 1977-01-13 1977-01-13 Verwendung von Polycarbonaten zur Herstellung von Linsen für Photo- und Filmkameras

Publications (2)

Publication Number Publication Date
IT7847588A0 IT7847588A0 (it) 1978-01-11
IT1104626B true IT1104626B (it) 1985-10-21

Family

ID=5998590

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47588/78A IT1104626B (it) 1977-01-13 1978-01-11 Elementi di strumenti ottici a base di policarbonato

Country Status (6)

Country Link
JP (1) JPS5389752A (da)
DE (1) DE2701173C2 (da)
FR (1) FR2377267A1 (da)
GB (1) GB1592724A (da)
IT (1) IT1104626B (da)
NL (1) NL186143C (da)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5778419A (en) * 1977-09-06 1982-05-17 Mobay Chemical Corp Copolycarbonate
EP0084578A1 (en) * 1982-01-23 1983-08-03 Mobay Chemical Corporation Copolycarbonates having high melt flow rates
JPS58179224A (ja) * 1982-03-18 1983-10-20 Konishiroku Photo Ind Co Ltd 光学用樹脂組成物および光学用素子
JPS59115333A (ja) * 1982-12-22 1984-07-03 Toshiba Corp ポリサルフアイドカ−ボネ−トの製造方法
GB2141556A (en) * 1983-06-14 1984-12-19 Pilkington Perkin Elmer Ltd Glass and plastics objective lens for low light level viewing apparatus
JPS617314A (ja) * 1984-06-20 1986-01-14 Kureha Chem Ind Co Ltd 高屈折率レンズ
JPH0649750B2 (ja) * 1984-08-24 1994-06-29 三菱化成株式会社 ポリカーボネートより成る射出成形材料
JPH0662752B2 (ja) * 1984-08-24 1994-08-17 三菱化成株式会社 光情報材料
JPH0792542B2 (ja) * 1986-02-07 1995-10-09 ミノルタ株式会社 絞り後置のトリプレツトレンズ系
US4831110A (en) * 1986-12-19 1989-05-16 Daicel Chemical Industries, Ltd. Co-polycarbonate copolymer from 2,2-bis(4-hydroxy-3-tertiary butyl phenyl)propane and optical disk
US5486949A (en) 1989-06-20 1996-01-23 The Dow Chemical Company Birefringent interference polarizer
EP0500128B1 (en) * 1991-02-22 1998-06-10 Mitsubishi Gas Chemical Company, Inc. Polycarbonate resin solution for film formation by casting
EP0500129B1 (en) * 1991-02-22 1996-07-31 Mitsubishi Gas Chemical Company, Inc. Polycarbonate resin solution for film formation by casting
ES2124790T3 (es) * 1992-07-16 1999-02-16 Dow Chemical Co Copolicarbonatos de tiodifenol y su uso como componentes de cuerpos reflectantes polimericos multicapa.
US5532331A (en) * 1993-06-24 1996-07-02 The Dow Chemical Company Thiodiphenol copolycarbonates and their use as components of multilayered polymeric reflective bodies
US6180698B1 (en) 1997-02-28 2001-01-30 Candescent Technologies Corporation Polycarbonate-containing liquid chemical formulation and method for making polycarbonate film
US6500885B1 (en) 1997-02-28 2002-12-31 Candescent Technologies Corporation Polycarbonate-containing liquid chemical formulation and methods for making and using polycarbonate film
JP5308610B2 (ja) 2000-05-12 2013-10-09 バイエル アクチェンゲゼルシャフト 帯電防止剤
JP2002114841A (ja) * 2000-10-06 2002-04-16 Mitsui Chemicals Inc 光学部品
JP2002114842A (ja) * 2000-10-06 2002-04-16 Mitsui Chemicals Inc ポリカーボネート樹脂、及びそれを含んで構成される光学部品
DE102004022673A1 (de) 2004-05-07 2005-11-24 Bayer Materialscience Ag Copolycarbonate mit verbesserter Fließfähigkeit
DE102007015948A1 (de) 2007-04-03 2008-10-09 Bayer Materialscience Ag Modifizierte Polycarbonate, Polyestercarbonate und Polyester mit verbessertem Dehnverhalten und Flammwidrigkeit
DE102007040925A1 (de) 2007-08-30 2009-03-05 Bayer Materialscience Ag Thermoplastische Zusammensetzungen mit geringer Trübung
EP2090605B1 (de) 2008-02-13 2011-07-13 Bayer MaterialScience AG Verfahren zur Herstellung von Polycarbonaten
DE102008008842A1 (de) 2008-02-13 2009-08-27 Bayer Materialscience Ag Alkylphenol zur Einstellung des Molekulargewichtes und Polycarbonatzusammensetzungen mit verbesserten Eigenschaften
DE102008008841A1 (de) 2008-02-13 2009-08-20 Bayer Materialscience Ag Verfahren zur Herstellung von Polycarbonaten
DE102008011903A1 (de) 2008-02-29 2009-09-03 Bayer Materialscience Ag Polycarbonate mit cyclischen Oligomeren und verbessertem Fließverhalten
DE102008012613A1 (de) 2008-03-05 2009-09-10 Bayer Materialscience Ag Verfahren zur Herstellung von Polycarbonat nach dem Phasengrenzflächenverfahren
DE102008019503A1 (de) 2008-04-18 2009-10-22 Bayer Materialscience Ag Polycarbonate mit Umlagerungsstrukturen, cyclischen und linearen Oligomeren sowie verbessertem Fließverhalten
DE102008023800A1 (de) 2008-05-15 2009-11-19 Bayer Materialscience Ag Alkylphenol zur Einstellung des Molekulargewichtes und Copolycarbonat mit verbesserten Eigenschaften
DE102008036406A1 (de) 2008-08-05 2010-02-11 Bayer Materialscience Ag Modifizierte Polycarbonate mit verbesserten Oberflächeneigenschaften
DE102008059658A1 (de) 2008-11-28 2010-06-02 Bayer Materialscience Ag Copolycarbonate mit verbesserter Oberflächenhärte
US7848025B2 (en) * 2008-12-31 2010-12-07 Sabic Innovative Plastics Ip B.V. Transparent articles prepared from thermoplastic compositions having high flow and ductility, and method of preparing articles
US8064140B2 (en) 2008-12-31 2011-11-22 Sabic Innovative Plastics Ip B.V. Transparent articles prepared from thermoplastic compositions having low birefringence
DE102009013643A1 (de) 2009-03-18 2010-09-30 Bayer Materialscience Ag Copolycarbonate mit verbesserten Eigenschaften
DE102009015040A1 (de) 2009-03-26 2010-09-30 Bayer Materialscience Ag (Co)polycarbonate mit verbesserten optischen Eigenschaften
DE102009058099A1 (de) 2009-12-12 2011-06-16 Bayer Materialscience Ag Polycarbonatblends mit hoher Wärmeformbeständigkeit und verbesserten Oberflächeneigenschaften
EP2336245A1 (de) 2009-12-12 2011-06-22 Bayer MaterialScience AG Polycarbonatzusammensetzungen mit verbesserter Oberflächenhärte
DE102009058462A1 (de) 2009-12-16 2011-06-22 Bayer MaterialScience AG, 51373 Polycarbonat mit erhöhter Transmission und bakterizider Wirksamkeit
KR102307698B1 (ko) 2014-01-24 2021-10-06 코베스트로 도이칠란트 아게 상 계면 방법에 따른 폴리카르보네이트의 제조 방법
JP6860806B2 (ja) * 2016-05-27 2021-04-21 三菱瓦斯化学株式会社 光学用ポリカーボネート樹脂
WO2018033562A1 (en) 2016-08-19 2018-02-22 Covestro Deutschland Ag Process for the synthesis of polyoxazolidinone compounds
EP3357949A1 (en) 2017-02-02 2018-08-08 Covestro Deutschland AG Method for the production of polyoxazolidinone polymer compounds
EP3985047A1 (de) 2020-10-13 2022-04-20 Covestro Deutschland AG Verfahren zur herstellung eines polycarbonats nach dem phasengrenzflächenverfahren unter lösungsmittelaustausch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1001586B (de) * 1955-04-14 1957-01-24 Agfa Aktiengesell schaft fur Photofabrikation Leverkusen Bayerwerk Photographisches Material
US3250744A (en) * 1956-10-19 1966-05-10 Bayer Ag High molecular weight thermoplastic polycarbonates and process for the production thereof
US4043980A (en) * 1976-05-18 1977-08-23 Mobay Chemical Corporation Flame retardant polycarbonate having improved critical thickness

Also Published As

Publication number Publication date
DE2701173A1 (de) 1978-07-20
NL186143C (nl) 1990-10-01
JPS5389752A (en) 1978-08-07
NL7800292A (nl) 1978-07-17
FR2377267B1 (da) 1983-07-01
FR2377267A1 (fr) 1978-08-11
GB1592724A (en) 1981-07-08
NL186143B (nl) 1990-05-01
DE2701173C2 (de) 1983-02-10
IT7847588A0 (it) 1978-01-11

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