Process for the preparation of hydroxypivalic acid
    1.
    发明授权
    Process for the preparation of hydroxypivalic acid 失效
    制备羟基新戊酸的方法

    公开(公告)号:US5801276A

    公开(公告)日:1998-09-01

    申请号:US910442

    申请日:1997-08-05

    CPC分类号: C07C51/285

    摘要: Hydroxypivalic acid can be prepared by oxidation of hydroxypivalaldehyde with hydrogen peroxide by metering the hydrogen peroxide, as the oxidizing agent, into an aqueous hydroxypivalaldehyde reservoir in the temperature range from 60.degree. to 80.degree. C. such that a hydrogen peroxide concentration of 4% by weight, based on the total weight of the reaction mixture, is not exceeded, and ending the addition of hydrogen peroxide as soon as the concentration of hydroxypivalaldehyde in the reaction mixture falls below 1% by weight.

    摘要翻译: 羟基新戊酸可以通过用过氧化氢氧化羟基新戊醛来制备,通过将过氧化氢作为氧化剂计量到在60℃至80℃的温度范围内的羟基新戊醛水溶液储存器中,使得过氧化氢浓度为4% 不超过反应混合物的总重量,并且一旦反应混合物中羟基新戊醛的浓度降至低于1重量%,则结束加入过氧化氢。

    Timber preservative containing a copper compound
    6.
    发明授权
    Timber preservative containing a copper compound 失效
    含有铜化合物的木材防腐剂

    公开(公告)号:US5874025A

    公开(公告)日:1999-02-23

    申请号:US930773

    申请日:1997-10-03

    CPC分类号: B27K3/52

    摘要: Novel wood preservatives comprisingat least one copper compound and polyaspartic acid or a derivative of the same,a triazole compound andif appropriate at least one synergistically complementing other fungicide and/or insecticideif appropriate an emulsifier and/or a small amount of alkanolamine.

    摘要翻译: PCT No.PCT / EP96 / 01434 Sec。 371日期1997年10月3日第 102(e)日期1997年10月3日PCT 1996年4月1日PCT PCT。 公开号WO96 / 32235 日期1996年10月17日含有至少一种铜化合物和聚天冬氨酸或其衍生物的新型木质防腐剂,三唑化合物,如果合适,至少一种协同补充的其它杀真菌剂和/或杀虫剂,如果合适的话,乳化剂和/或小 链烷醇胺的量。