发明名称 |
4,4-BIS( -HYDROXIETYLSULFONYL)-DIFENYL OCH DESS ESTRAR, FOERFARANDE FOER DESS FRAMSTAELLNING OCH DESS ANVAENDNING. |
摘要 |
Compounds of the general formula (1) <IMAGE> (1) in which the Zs, preferably identical to each other, each denote a hydroxy group or a sulfato, thiosulfato or phosphato group. They can be prepared by first converting biphenyl by sulfochlorination into biphenyl-4,4'-disulfochloride, then reducing the latter with an alkali metal or alkaline earth metal sulfite or hydrogensulfite to sulfinic acid, and in turn reacting the latter with ethylene oxide to give 4,4'-bis-( beta -hydroxyethylsulfonyl)-biphenyl, which can be esterified in conventional manner. They are used for modifying and improving the physical and coloristic properties of materials made of natural and/or synthetic polyamide fibers and/or polyurethane fibers and as auxiliaries in dyeing processes for such fiber materials. |
申请公布号 |
FI83639(B) |
申请公布日期 |
1991.04.30 |
申请号 |
FI19850003496 |
申请日期 |
1985.09.12 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
SPRINGER, HARTMUT;KOENIG, GERD |
分类号 |
C07C317/18;C07C381/02;C07F9/09;D06P1/651 |
主分类号 |
C07C317/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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