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Process for the production of polyureas
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Patent number 4,028,310
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Issue date Jun 7, 1977
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Bayer Aktiengesellschaft
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Walter Schafer
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Diisocyanato-diketenes
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Patent number 4,009,152
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Issue date Feb 22, 1977
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Bayer Aktiengesellschaft
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Werner Mormann
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C07 - ORGANIC CHEMISTRY
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Urethane oxazolidines
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Patent number 4,002,601
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Issue date Jan 11, 1977
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Bayer Aktiengesellschaft
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Manfred Hajek
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C07 - ORGANIC CHEMISTRY
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Method of dressing leather
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Patent number 3,987,223
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Issue date Oct 19, 1976
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Bayer Aktiengesellschaft
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Kuno Wagner
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C14 - SKINS HIDES PELTS LEATHER
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