Preparation of isochromane derivatives
    3.
    发明授权
    Preparation of isochromane derivatives 失效
    异色烷衍生物的制备

    公开(公告)号:US4523023A

    公开(公告)日:1985-06-11

    申请号:US575439

    申请日:1984-01-31

    摘要: A process for the preparation of an isochromane of the formula ##STR1## in which R.sup.1 and R.sup.2 are identical or different and denote hydrogen, lower alkyl or lower alkoxy, or together form a cyclopentane or cyclohexane ring which is optionally substituted by lower alkyl andR.sup.3 denotes hydrogen or lower alkyl,comprising reacting an alcohol of the formula ##STR2## with formaldehyde and a carboxylic acid anhydride of the formula ##STR3## or with a methylene diester of the formula ##STR4## in which R.sup.4 represents a lower alkyl radical, in the presence of an acid catalyst. The products are known, having a musk-like odor.

    摘要翻译: 制备式“IMAGE”的异色烷的方法,其中R 1和R 2相同或不同,表示氢,低级烷基或低级烷氧基,或一起形成任选被低级烷基和R 3取代的环戊烷或环己烷环 表示氢或低级烷基,包括使下式的醇与甲醛和式“IMAGE”的羧酸酐或其中R 4表示低级烷基的亚甲基二酯反应,其中R 4表示低级烷基,在 酸催化剂的存在。 该产品是已知的,具有麝香样的气味。

    Lubricating device for roll spindles
    8.
    发明授权
    Lubricating device for roll spindles 失效
    辊轴用润滑装置

    公开(公告)号:US3945466A

    公开(公告)日:1976-03-23

    申请号:US500338

    申请日:1974-08-26

    IPC分类号: B21B35/14 F16N13/20 F01M1/06

    CPC分类号: F16N13/20 B21B35/147

    摘要: A lubricating device for mounting on a spindle, such as a roll spindle, in which a split gear ring is mounted on the spindle and confined within a cover which has a pinion therein meshing with the gear ring and forming a lubricant pump therewith. The gear ring has axial hub portions thereon and there are bearings interposed between the cover and the hub portions rollingly supporting the cover on the hub portions. The cover is sealed to the hub portions and is held against rotation on the spindle.

    摘要翻译: 一种用于安装在诸如辊心轴的主轴上的润滑装置,其中分离齿轮环安装在主轴上并限制在具有与齿圈啮合的小齿轮并且与其形成润滑剂泵的盖中。 齿圈在其上具有轴向轮毂部分,并且轴承插入在盖和轮毂部分之间,滚动地支撑轮毂部分上的盖。 盖子被密封到轮毂部分并且被保持在主轴上以防旋转。