发明名称 |
Composições aperfeiçoadas para absorção de oxigenio para uso em baixas temperaturas |
摘要 |
<p>Improved compositions for scavenging oxygen are disclosed. These materials, characterized by low degree crystallinity and a glass transition temperature of lower than -15 DEG C., have high oxygen scavenging rates at low temperatures. The composition comprises an ethylenically unsaturated hydrocarbon and a transition metal salt catalyst and can be incorporated into various types of layers. It is preferable that the composition be incorporated into layers of multilayered articles used for packaging oxygen-sensitive products such as food products.</p> |
申请公布号 |
BR9307155(A) |
申请公布日期 |
1999.03.30 |
申请号 |
BR19939307155 |
申请日期 |
1993.09.24 |
申请人 |
W. R. GRACE & CO.-CONN. |
发明人 |
DREW VE SPEER;WILLIAM PEYTON ROBERTS |
分类号 |
A23L3/3436;B01J20/26;B32B27/32;C08F4/42;C08F4/60;C08K5/00;C08L67/04;C08L101/00;(IPC1-7):A23L3/343;C08K5/09 |
主分类号 |
A23L3/3436 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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