发明授权
- 专利标题： Elasthane fibers stabilized against environmental influences
- 专利标题（中）： 弹性纤维可以抵御环境影响
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申请号： US323042申请日： 1989-03-10
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公开(公告)号： US4877825A公开(公告)日： 1989-10-31
- 发明人: Michael Kausch , Hans-Josef Buysch , Hans Schroer , Carlhans Suling
- 申请人： Michael Kausch , Hans-Josef Buysch , Hans Schroer , Carlhans Suling
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Akteingesellschaft
- 当前专利权人： Bayer Akteingesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX3637509 19861104
- 主分类号： D01F6/94
- IPC分类号： D01F6/94 ; C08K5/3477 ; C08K5/527 ; D01F6/70
摘要：
The invention relates to elasthane fibers which are protected against harmful environmental influences, particularly sunlight and combustion gases, by a synergistic stabilizer combination of(a) highly alkylated, phenolic antioxidants corresponding to the following formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are C.sub.1 -C.sub.3 alkyl radicals, in addition to which R.sup.3 may be C.sub.4 -C.sub.6 alkyl radicalsand(b) oligomeric, (cyclo)aliphatic phosphorous acid esters (oligomeric phosphites) obtained by reaction of pentaerythritol, perhydrobisphenol A and, optionally, a mono- alcohol with monomeric trialkyl or triaryl phosphites.
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