Cutting oil composition
    29.
    发明授权
    Cutting oil composition 失效
    切割油组成

    公开(公告)号:US06383991B1

    公开(公告)日:2002-05-07

    申请号:US09647592

    申请日:2000-11-27

    Abstract: The present invention relates to a cutting oil comprising (a) a polyether compound represented by the formula (I): R1O(EO)m(AO)nR2  (I) wherein each of R1 and R2, which may be identical or different, is hydrogen atom or a hydrocarbon group having 1 to 24 carbon atoms, at least one of which is a hydrocarbon group; EO is oxyethylene group; AO is an oxyalkylene group having 3 or 4 carbon atoms; and each of m and n is 1 to 50, wherein a sum of m and n is from 4 to 100; a cutting oil composition comprising the above cutting oil and an abrasive; a cutting method using the above cutting oil composition; and a process of cleaning a wafer, comprising the steps of cleaning a wafer obtainable by cutting an ingot with a wire saw using the above cutting oil composition; heating the resulting waste water to a temperature equal to or higher than a cloud point of a polyether compound represented by the formula (I) contained in the waste water, to allow separation into an oil phase and an aqueous phase; and removing the oil phase comprising the polyether compound from the waste water. According to the present invention, there can be obtained excellent dispersibility of the abrasive, and excellent re-dispersibility, cutting performance and workability when sedimented, and the object to be cut obtained after cutting can be easily cleaned.

    Abstract translation: 本发明涉及一种切削油,其包含(a)由式(I)表示的聚醚化合物:其中可以相同或不同的R 1和R 2各自为氢原子或具有1至24个碳原子的烃基 ,其中至少一个是烃基; EO是氧乙烯基; AO是具有3或4个碳原子的氧化烯基团; m和n分别为1〜50,m和n的和为4〜100; 包含上述切削油和磨料的切削油组合物; 使用上述切削油组合物的切削方法; 以及清洁晶片的方法,包括以下步骤:使用上述切削油组合物清洁通过用线锯切割锭块可获得的晶片; 将得到的废水加热至与废水中所含的式(I)所示的聚醚化合物的浊点相同或更高的温度,使其分离成油相和水相。 并从废水中除去包含聚醚化合物的油相。 根据本发明,可以获得磨料的优异的分散性,并且当沉降时优异的再分散性,切割性能和可加工性,并且可以容易地清洁切割后获得的待切割物体。

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