Optical disk of polycarbonate
    1.
    发明授权
    Optical disk of polycarbonate 失效
    聚碳酸酯的光盘

    公开(公告)号:US4978578A

    公开(公告)日:1990-12-18

    申请号:US225052

    申请日:1988-07-27

    IPC分类号: C08G64/06 G11B7/253

    摘要: An optical disk of the invention comprises a substrate of an aromatic polycarbonate obtained by polymerizing one or two monomers polymerized through carbonate linkages and a recording layer coated thereon, said recording layer being recordable and readable by a laser beam,the monomer being selected from the group consisting of:(a-1) 1,1'-bis-(4-hydroxyphenyl)-p-diisopropylbenzene(a-2) 1,1'-bis-(4-hydroxyphenyl)-m-diisopropylbenzene,(b-1) 2,2-bis-(4-hydroxyphenyl)propane,(b-2) 2,2-bis-(4-hydroxyphenyl)butane,(b-3) 2,2-bis-(4-hydroxyphenyl)-4-methylpentane,(b-4) 2,2-bis-(4-hydroxyphenyl)octane,(b-5) 1,1-bis-(4-hydroxyphenyl)cyclohexane,(b-6) 4,4'-dihydroxy-2,2,2-triphenylethane,(b-7) 2,2-bis-(4-hydroxy-3-methylphenyl)propane,(b-8) 2,2-bis-(4-hydroxy-3-isopropylphenyl)propane,(b-9) 2,2-bis-(4-hydroxy-3-sec.-butylphenyl)propane,(b-10) 2,2-bis-(3,5-dimethyl-4-hydroxyphenyl)propane,the polycarbonate being selected from the group consisting of:(I) a copolymer of 3 to 97 mole percent of (a-1) and 97 to 3 mole percent of one of (b-1) to (b-10),(II) a homopolymer of (a-1) and(III) a copolymer of 3 to 97 mole percent of (a-2) and 97 to 3 mole percent of one of (b-1), (b-5), (b-6), (b-10) and (a-1).

    摘要翻译: 本发明的光盘包括通过聚合通过碳酸酯键聚合的一种或两种单体和其上涂覆有记录层而获得的芳族聚碳酸酯的基材,所述记录层可由激光束记录和读取,所述单体选自组 由(a-1)1,1'-双 - (4-羟基苯基) - 对二异丙基苯(a-2)1,1'-双 - (4-羟基苯基) - 间二异丙苯,(b-1 )2,2-双 - (4-羟基苯基)丙烷,(b-2)2,2-双 - (4-羟基苯基)丁烷,(b-3)2,2-双 - (4-羟基苯基)-4 (b-4)2,2-双 - (4-羟基苯基)辛烷,(b-5)1,1-双 - (4-羟基苯基)环己烷,(b-6)4,4'-二羟基 -2,2,2-三苯基乙烷,(b-7)2,2-双 - (4-羟基-3-甲基苯基)丙烷,(b-8)2,2-双 - (4-羟基-3-异丙基苯基 )丙烷,(b-9)2,2-双 - (4-羟基-3-仲丁基苯基)丙烷,(b-10)2,2-双 - (3,5-二甲基-4-羟基苯基) 丙烷,所述聚碳酸酯选自:(I)3至97摩尔%的共聚物 (a-1)和(III)的均聚物(a-1)和97〜3摩尔%的(b-1)〜(b-10),(II) (a-2)和(b-1),(b-5),(b-6),(b-10)和(a-1)之一的(a-2)和97〜3摩尔%的百分比。