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Fine-celled foam composition and method having improved thermal insulation and fire retardant properties |
— |
2002-06-25 |
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Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash solutions and processes |
Clyde W. Wellen, Jeffrey B. Smith, Kenneth F. Kubiak |
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Highly activated carbon from caustic digestion of rice hull ash and method |
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2000-09-05 |
| 5858911 |
Method of producing activated carbon |
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Fine-celled foam composition and method |
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