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Manufacture of plastic materials
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Manufacture of urea-formaldehyde condensation products and artificial materials therefrom
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Improved process for condensing urea or its derivatives with formaldehyde or its polymerides
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Improved process for condensing ordinary urea or its derivatives with formaldehyde or its polymerides
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Process for condensing urea with formaldehyde or the polymeric bodies thereof and the product obtained therefrom
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Manufacture of New Substituted Ureas.
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Manufacture of Chlorinated Aromatic or Cyclic Compounds.
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Manufacture of Aldehydes and Ketones from Mono-halogen Derivatives.
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Manufacture of Products of Condensation of Phenol-alcohols.
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