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Polyimide product from phenanthrene
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Patent number 4,577,009
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Issue date Mar 18, 1986
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Coal Industry (Patents) Limited
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Joseph G. Robinson
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Catalysts
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Patent number 4,469,814
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Issue date Sep 4, 1984
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Coal Industry (Patents) Limited
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Joseph G. Robinson
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C07 - ORGANIC CHEMISTRY
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Polyimide resins
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Patent number 4,394,499
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Issue date Jul 19, 1983
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Coal Industry (Patents) Limited
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Joseph G. Robinson
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Reinforced rubber
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Patent number 4,200,556
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Issue date Apr 29, 1980
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Coal Industry (Patents) Limited
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Joseph G. Robinson
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Aromatic hydrocarbon resins
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Patent number 4,192,824
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Issue date Mar 11, 1980
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Coal Industry (Patents) Limited
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Joseph G. Robinson
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C07 - ORGANIC CHEMISTRY
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