BR0010493A - Substrates for optical data storage media - Google Patents

Substrates for optical data storage media

Info

Publication number
BR0010493A
BR0010493A BR0010493-0A BR0010493A BR0010493A BR 0010493 A BR0010493 A BR 0010493A BR 0010493 A BR0010493 A BR 0010493A BR 0010493 A BR0010493 A BR 0010493A
Authority
BR
Brazil
Prior art keywords
substrates
data storage
optical data
storage media
comonomers
Prior art date
Application number
BR0010493-0A
Other languages
Portuguese (pt)
Inventor
Volker Wege
Friedrich-Karl Bruder
Ralf Dujardin
Yun Chen
Original Assignee
Bayer Ag
Teijin Ltd
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, Teijin Ltd filed Critical Bayer Ag
Publication of BR0010493A publication Critical patent/BR0010493A/en

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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/04—Reduction, e.g. hydrogenation
    • 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
    • G11B7/2536—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 polystyrene [PS]

Abstract

Patente de Invenção: "SUBSTRATOS PARA MEIOS óTICOS DE ARMAZENAMENTO DE DADOS". Substratos que se baseiam em homopolímeros, copolímeros e/ou polímeros em bloco do vinilciclohexano, dos quais são escolhidos comonómeros do grupo das olefinas, derivados de ácido acrílico, derivados de ácido maléico, viniléter e viniléster ou suas misturas de pelo menos dois comonómeros, caracterizados pelo fato de que o momento de inércia do substrato é de 280 até 50 g.cm^ 2^ e a densidade específica é de 1 até 0,8 g/cm^ 3^.Invention Patent: "SUBSTRATES FOR OPTICAL DATA STORAGE MEANS". Substrates based on homopolymers, copolymers and / or block polymers of vinylcyclohexane, from which comonomers are chosen from the group of olefins, acrylic acid derivatives, maleic acid derivatives, vinylether and vinylester or mixtures of at least two comonomers, characterized by the fact that the moment of inertia of the substrate is 280 to 50 g.cm ^ 2 ^ and the specific density is 1 to 0.8 g / cm ^ 3 ^.

BR0010493-0A 1999-05-12 2000-05-02 Substrates for optical data storage media BR0010493A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19921943A DE19921943A1 (en) 1999-05-12 1999-05-12 Substrate for optical data storage, based on homo-, co- and/or block polymers of vinylcyclohexane, and has specified moment of inertia and specific density
PCT/EP2000/003925 WO2000070607A1 (en) 1999-05-12 2000-05-02 Substrates for optical storage media

Publications (1)

Publication Number Publication Date
BR0010493A true BR0010493A (en) 2002-02-13

Family

ID=7907862

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0010493-0A BR0010493A (en) 1999-05-12 2000-05-02 Substrates for optical data storage media

Country Status (11)

Country Link
EP (1) EP1185981A1 (en)
JP (1) JP2003500784A (en)
KR (1) KR20020002500A (en)
CN (1) CN1363090A (en)
AU (1) AU4560100A (en)
BR (1) BR0010493A (en)
CA (1) CA2373712A1 (en)
DE (1) DE19921943A1 (en)
HK (1) HK1048389A1 (en)
WO (1) WO2000070607A1 (en)
ZA (1) ZA200108239B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2762505B1 (en) * 2011-09-29 2016-09-07 Mitsubishi Chemical Corporation Hydrogenated block copolymer, resin composition, film and container
US10202479B2 (en) * 2013-06-07 2019-02-12 Regents Of The University Of Minnesota Poly(cyclohexylethylene)-polyacrylate block copolymers, methods of manufacture thereof and articles comprising the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2730053B2 (en) * 1988-01-21 1998-03-25 三菱化学株式会社 Substrate forming material for optical disks
JP2962291B2 (en) * 1988-01-21 1999-10-12 三菱化学株式会社 Optical disk substrate
JP2668945B2 (en) * 1988-06-17 1997-10-27 三菱化学株式会社 optical disk
JPH01317728A (en) * 1988-06-17 1989-12-22 Mitsubishi Kasei Corp Production of optical disk substrate made of polyvinyl cyclohexane resin
JPH0218404A (en) * 1988-07-06 1990-01-22 Kazuo Soga Syndiotactic poly(vinylcyclohexane) and production thereof
CA2022027A1 (en) * 1989-07-28 1991-01-29 Yoshinori Suga Substrate of optical disc
JP2725402B2 (en) * 1989-09-28 1998-03-11 三菱化学株式会社 Hydrogenated vinyl aromatic hydrocarbon polymer composition and optical disk substrate
DE19756368A1 (en) * 1997-12-18 1999-07-01 Bayer Ag Vinylcyclohexane based polymers

Also Published As

Publication number Publication date
JP2003500784A (en) 2003-01-07
WO2000070607A1 (en) 2000-11-23
CA2373712A1 (en) 2000-11-23
DE19921943A1 (en) 2000-11-16
KR20020002500A (en) 2002-01-09
AU4560100A (en) 2000-12-05
EP1185981A1 (en) 2002-03-13
ZA200108239B (en) 2002-12-24
HK1048389A1 (en) 2003-03-28
CN1363090A (en) 2002-08-07

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A, 6A E 7A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1927 DE 11/12/2007.