Processes for preparing and using tanning agents and preservatives
    3.
    发明授权
    Processes for preparing and using tanning agents and preservatives 失效
    制备和使用鞣剂和防腐剂的方法

    公开(公告)号:US07282066B2

    公开(公告)日:2007-10-16

    申请号:US10543605

    申请日:2004-01-22

    IPC分类号: C14C3/00 C14C9/00

    摘要: A process for the preparation of aqueous formulations, and aqueous formulations so prepared, the process comprising heating at least one cyclic compound of the formula I in the presence of water and of an acidic catalyst and, during or after the heating, H—X—R3 is at least partially separated off, where, in formula I, X is selected from oxygen, sulfur and N—R6, R1-R6 are as defined, and n is an integer from 1 to 4.

    摘要翻译: 一种制备水性制剂的方法和如此制备的水性制剂,该方法包括在水和酸性催化剂的存在下和在加热期间或之后加热至少一种式I的环状化合物,HXR < 3至少部分地分离出来,其中在式I中,X选自氧,硫和NR 6,R 1,R 2, 6定义,n为1〜4的整数。