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Polyurethane
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Patent number 4,447,591
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Issue date May 8, 1984
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Daicel Chemical Industries, Ltd.
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Shoji Watanabe
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Polyol resin
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Patent number 4,435,542
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Issue date Mar 6, 1984
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Daicel Chemical Industries, Ltd.
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Shoji Watanabe
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Lactone polymer
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Patent number 4,379,915
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Issue date Apr 12, 1983
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Daicel Chemical Industries, Ltd.
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Shoji Watanabe
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...