发明名称 |
High surface area magnesia as hardener for phenolic resins |
摘要 |
There are disclosed methods and compositions for room temperature hardening of phenolic resole resin refractory compositions containing a magnesium oxide hardening agent alone or together with an organic ester. The resin is a low viscosity, low molecular weight resin having a high free phenol content. The magnesium hardening agent has a surface area of at least 20 square meters per gram. The compositions provide adequate working times and room temperature hardening within 24 hours.
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申请公布号 |
US5145887(A) |
申请公布日期 |
1992.09.08 |
申请号 |
US19910680568 |
申请日期 |
1991.04.04 |
申请人 |
BORDEN, INC. |
发明人 |
TAYLOR, JOHN G.;GERBER, ARTHUR H. |
分类号 |
C08K3/00;C04B35/634;C08G8/28;C08K3/22;C08L61/04;C08L61/06;C08L61/10 |
主分类号 |
C08K3/00 |
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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