Method of producing anhydrous crystalline reaction products of f

Details Method of producing anhydrous crystalline reaction products of f Method of producing anhydrous crystalline reaction products of f

1975-05-16

1977-01-11

Sutto, Anton H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

8187, C07C12506

Patent

active

040026680

ABSTRACT:
The instant invention relates to a method for the preparation and isolation of anhydrous crystalline dimethylolated methyl-, and ethyl carbamate by lyophilization. Further, the instant invention is a dimethylolated methyl-, and ethyl carbamate, the chemical entity of which consists of an increased formaldehyde to nitrogen ratio, which is essentially free of free formaldehyde.
The dimethylol methyl-, and ethyl carbamates are represented by the general formula ROCON(CH.sub.2 OH).sub.n, with n being 2, and in which R is an aliphatic or modified aliphatic group.

REFERENCES:
patent: 3391181 (1968-07-01), Scheuerl
patent: 3556713 (1971-01-01), Kullman
patent: 3723058 (1973-03-01), Reinhardt
patent: 3723377 (1973-03-01), Spangler
patent: 3749751 (1973-07-01), Pai

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