发明授权
- 专利标题： Sealed containers and sealing compositions for them
- 专利标题（中）： 密封容器和密封组合物
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申请号： US820430申请日： 1992-01-14
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公开(公告)号： US5227411A公开(公告)日： 1993-07-13
- 发明人: Robert H. Hofeldt , Steven A. C. White
- 申请人： Robert H. Hofeldt , Steven A. C. White
- 申请人地址： NY New York
- 专利权人： W. R. Grace & Co.-Conn.
- 当前专利权人： W. R. Grace & Co.-Conn.
- 当前专利权人地址： NY New York
- 优先权： GBX8803062 19880210
- 主分类号： B65D81/26
- IPC分类号： B65D81/26 ; C09K3/10
摘要：
A sealing composition for a container closure comprising a polymeric matrix material and is modified by the inclusion therein of an oxygen scavenger. The composition can be in fluid or meltable form ready for application to a closure or it can be present as a deposit on the closure, for instance a gasket around the closure. Preferably the scavenging properties of the deposit are activated by pasteurizing or sterilizing the deposit when sealing a container with the closure. The invention is of particular value when the closure is a metal cap for a beer bottle.
公开/授权文献
- US5935602A Dosage forms of risedronate 公开/授权日：1999-08-10
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