发明授权
EP1095006B1 DERIVATIVES OF 1-OXYL-4-HYDROXY-2,2,6,6-TETRAMETHYLPIPERIDINE AS POLYMERIZATION INHIBITORS FOR (METH) ACRYLATE MONOMERS
失效
1-氧基-4-羟基-2,2,6,6-四甲基哌衍生物作为聚合抑制剂用于（甲基）丙烯酸
- 专利标题： DERIVATIVES OF 1-OXYL-4-HYDROXY-2,2,6,6-TETRAMETHYLPIPERIDINE AS POLYMERIZATION INHIBITORS FOR (METH) ACRYLATE MONOMERS
- 专利标题（中）： 1-氧基-4-羟基-2,2,6,6-四甲基哌衍生物作为聚合抑制剂用于（甲基）丙烯酸
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申请号： EP98936423.7申请日： 1998-07-14
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公开(公告)号： EP1095006B1公开(公告)日： 2008-12-24
- 发明人: CUNKLE, Glen, Thomas , GANDE, Matthew, Edward , SELTZER, Raymond , THOMPSON, Thomas, Friend
- 申请人： Ciba Holding Inc.
- 申请人地址： Klybeckstrasse 141 4057 Basel CH
- 专利权人： Ciba Holding Inc.
- 当前专利权人： Ciba Holding Inc.
- 当前专利权人地址： Klybeckstrasse 141 4057 Basel CH
- 国际公布： WO2000003965 20000127
- 主分类号： C07C51/50
- IPC分类号： C07C51/50 ; C07C57/04 ; C07C69/54 ; C07C67/62 ; C07C69/15 ; C07C231/22 ; C07C233/09 ; C07C253/32 ; C07C255/08 ; C07B63/04 ; C07D211/94
摘要：
Selected derivatives of 1-oxyl-2,2,6,6-tetramethyl-4-hydroxypiperidine and 1-oxyl-2,2,6,6-tetramethyl-4-aminopiperidine are surprisingly effective as inhibitors to prevent the premature polymerization of acrylic and methacrylic acids, their esters, their amides, vinyl acetate and acrylonitrile in the presence of water. Some of these derivatives are new compounds.
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