US PATENT SUBCLASS 423 / 368
.~.~ Cyanamide radical containing

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

351  DF  NITROGEN OR COMPOUND THEREOF (EXCEPT AMMONIUM SALT OF NON-NITROGEN ACID) {5}
364  DF  .~ Carbon containing {7}
368.~.~ Cyanamide radical containing {2}
369  DF  .~.~.~> And hydrogen containing
370  DF  .~.~.~> Utilizing carbide as reactant

DEFINITION

Classification: 423/368

(under subclass 364) Products or processes in which the carbon is combined with nitrogen as the cyanamide radical (CN2-1).

(1) Note. In this subclass are found salts of cyanamide. For hydrogen cyanamide see search note below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

369, for processes of making hydrogen cyanamide or for chemically separating or purifying the product.

371, for processes producing carbonitrides having formulas wherein carbon and nitrogen atoms are present in the ratio of one carbon to two nitrogens, but are not clearly cyanamide compounds.

SEE OR SEARCH CLASS 260, Chemistry of Carbon Compounds, for cyanamide polymers such as dicyandiamide and melamine.