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Flame-resistant polymethacrylimide foams
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Patent number 5,698,605
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Issue date Dec 16, 1997
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Roehm GmbH Chemische Fabrik
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Manfred Krieg
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Tinted plexiglass with organic pigments
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Patent number 5,387,634
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Issue date Feb 7, 1995
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Roehm GmbH Chemische Fabrik
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Hans Lichtenstein
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Electrically conducting solid plastics
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Patent number 5,057,370
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Issue date Oct 15, 1991
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Rohm GmbH Chemische Fabrik
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Manfred Krieg
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Curable casting resins
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Patent number 4,826,901
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Issue date May 2, 1989
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Rohm GmbH
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Guenther Ittmann
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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