发明授权
US4107139A 1-Oxa-4,8-diazaspiro[4,5]decanes and polymers stabilized against UV
light with these compounds
失效
1-氧杂-4,8-二氮杂螺[{8,45} {9癸烷和用这些化合物对UV光进行稳定的聚合物
- 专利标题: 1-Oxa-4,8-diazaspiro[4,5]decanes and polymers stabilized against UV light with these compounds
- 专利标题(中): 1-氧杂-4,8-二氮杂螺[{8,45} {9癸烷和用这些化合物对UV光进行稳定的聚合物
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申请号: US823145申请日: 1977-08-09
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公开(公告)号: US4107139A公开(公告)日: 1978-08-15
- 发明人: Norbert Mayer , Gerhard Pfahler , Hartmut Wiezer
- 申请人: Norbert Mayer , Gerhard Pfahler , Hartmut Wiezer
- 申请人地址: DEX Frankfurt am Main
- 专利权人: Hoechst Aktiengesellschaft
- 当前专利权人: Hoechst Aktiengesellschaft
- 当前专利权人地址: DEX Frankfurt am Main
- 主分类号: C07D498/10
- IPC分类号: C07D498/10 ; C08K5/35
摘要:
New 1-oxa-4,8-diazaspiro[4,5]decanes are prepared by reacting a dimethyl-dialkyl-piperidone with an .alpha.-hydroxyamide in the presence of a condensation catalyst. The compounds can be used as UV stabilizers for polymers.
公开/授权文献
- US06023654A Method for referencing fixed objects 公开/授权日:2000-02-08
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