发明授权
US4105620A Stabilization of barium, strontium and calcium complexes of
polyterephthaloyl oxalamidrazone and polydiphenylether-dicarboxylic
acid-4,4'-oxalamidrazone
失效
聚邻二甲苯基氧杂环丁烷和聚二苯基二硅氧烷酸-4,4“ - 奥马西拉唑的钡，锶和钙复合物的稳定性
- 专利标题： Stabilization of barium, strontium and calcium complexes of polyterephthaloyl oxalamidrazone and polydiphenylether-dicarboxylic acid-4,4'-oxalamidrazone
- 专利标题（中）： 聚邻二甲苯基氧杂环丁烷和聚二苯基二硅氧烷酸-4,4“ - 奥马西拉唑的钡，锶和钙复合物的稳定性
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申请号： US780834申请日： 1977-03-24
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公开(公告)号： US4105620A公开(公告)日： 1978-08-08
- 发明人: Joachim Behnke , Dieter Frank , Michael Wallrabenstein
- 申请人： Joachim Behnke , Dieter Frank , Michael Wallrabenstein
- 申请人地址： NC Asheville
- 专利权人： Akzona Incorporated
- 当前专利权人： Akzona Incorporated
- 当前专利权人地址： NC Asheville
- 优先权： DEX2612669 19760325
- 主分类号： C08G69/00
- IPC分类号： C08G69/00 ; C08G73/06 ; C08G79/00 ; D01F6/76 ; D06M11/00 ; D06M11/52 ; D06M11/56 ; D06M13/192 ; D06M101/00 ; D06M101/16 ; D06M101/30 ; D06M101/36 ; G07C11/00 ; C08G73/08 ; C08L79/06
摘要：
A process for the stabilization of a polymer which is a barium, strontium and/or calcium complex of polyterephthaloyl oxalamidrazone or polydiphenylether-dicarboxylic acid-4,4'-oxalamidrazone wherein the polymer is treated in an acidic to neutral aqueous solution, e.g. at pH of 1 to 7, containing an acid or salt compound selected from the group consisting of oxalic acid, alkali oxalate, alkali sulfite, alkali hydrogen sulfite, alkali dithionite and alkali hydrogen sulfate. The resulting product has a much improved resistance to UV, oxidation and hydrolysis. Such polymers are especially useful in the form of flame-retardant threads, yarns, filaments, fibers, felts, fabrics and the like.
公开/授权文献
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