High density information disc lubricants
    3.
    发明授权
    High density information disc lubricants 失效
    高密度信息盘润滑油

    公开(公告)号:US4351048A

    公开(公告)日:1982-09-21

    申请号:US297053

    申请日:1981-08-27

    申请人: David A. Berry

    发明人: David A. Berry

    IPC分类号: G11B3/68 G11B3/70 C07F7/18

    摘要: High density information discs are lubricated with a silyl quaternary ammonium salt of the formula ##STR1## wherein R is a lower alkyl group of 1-5 carbon atoms; R.sub.3 is methyl or ethyl; R.sub.4 is an alkyl group of 1-12 carbon atoms and X is --OSO.sub.2 --(CH.sub.2).sub.n CH.sub.3 wherein n is an integer of 5-12. Discs lubricated with this lubricant exhibit improved stability to high temperature, high relative humidity environments.

    摘要翻译: 高密度信息盘用式“IMAGE”的甲硅烷基季铵盐润滑,其中R是1-5个碳原子的低级烷基; R3是甲基或乙基; R4是1-12个碳原子的烷基,X是-OSO2-(CH2)nCH3,其中n是5-12的整数。 用这种润滑剂润滑的圆盘在高温,高相对湿度环境下表现出改进的稳定性。

    Method for conditioning phonograph records
    6.
    发明授权
    Method for conditioning phonograph records 失效
    保留留声机记录的方法

    公开(公告)号:US4510187A

    公开(公告)日:1985-04-09

    申请号:US607586

    申请日:1984-05-07

    申请人: Irwin Rowe

    发明人: Irwin Rowe

    摘要: A method of conditioning a phonograph record comprises applying a very thin film thereto of a quaternary ammonium salt having at least one long hydrocarbon chain. Preferred compositions have the formula ##STR1## wherein R.sub.1 is a hydrocarbon radical having from 8 to 22 carbon atoms, R.sub.2 is a hydrocarbon radical having 8 to 22 carbons, C.sub.1 -C.sub.4 alkyl, quaternary ammonium alkylene, or benzyl, and R.sub.3 and R.sub.4 are C.sub.1 -C.sub.4 alkyl or -(CH.sub.2 CH.sub.2 O).sub.n H, wherein n is an integer from 1 to 20, and X is a water-soluble salt-forming anion. Especially preferred compounds are quaternary ammonium compounds having at least one tallow radical. The compound is applied by spraying small quantities of a solution containing a minor amount of the salt dissolved in a solvent on a soft applicator, and pressing the applicator against the record while the surface is moving relative to the applicator.

    摘要翻译: 调节留声机记录的方法包括向其施加非常薄的具有至少一个长烃链的季铵盐。 优选的组合物具有式“IMAGE”,其中R1是具有8-22个碳原子的烃基,R2是具有8-22个碳原子的烃基,C1-C4烷基,季铵亚烷基或苄基,R3和R4是 C 1 -C 4烷基或 - (CH 2 CH 2 O)n H,其中n为1至20的整数,X为水溶性成盐阴离子。 特别优选的化合物是具有至少一个牛脂基的季铵化合物。 通过将少量溶解在溶剂中的盐的溶液喷洒到柔软的涂抹器上,并且当表面相对于涂布器移动时,将施加器压在记录上,施加化合物。

    Gramophone record
    10.
    发明授权

    公开(公告)号:US09886969B2

    公开(公告)日:2018-02-06

    申请号:US15077047

    申请日:2016-03-22

    申请人: ULVAC TAIWAN INC.

    IPC分类号: G11B3/70 G11B3/68

    CPC分类号: G11B3/70 G11B3/682

    摘要: A gramophone record includes a main body and a cladding layer. The main body is made of a polymeric material, and has a base surface and an extending surface which extends downward from the base surface. The extending surface defines a continuous spiral groove in the main body. The cladding layer is formed on the extending surface, and has a Hardness Rockwell C (HRC) of not less than 37.