THE "CD" CHEMICALS shorten the time between NOW . . . and

4 Nov 2010 - Advertisements that appeared within the print issues of Chem. Eng. News have been included in the C&EN Archives to provide a ...
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THE " C D " CHEMICALS shorten the time between NOW . . . end TOMORROW The world of tomorrow is near at hand for those w h o have discovered the vast range o f applications of " C D " amides. These really high molecular weight amides, containing normal alkyl chains o f 16 and 18 carbon atoms, are in daily large scale commercial production. They are freely available without priority ratings. Physical characteristics vary from soft to high-melting waxes, dependent on the chain length and the unsaturation o f the molecule. (Commercial octadecane amide, coded AD-1180-C, melts at the boiling point of water.) MELTING POINT ELEVATION. A small percentage o f octadecane amide added to a parafBne having a dropping point o f 53° C. raises the dropping point to 81° C. COLOR BRILLIANCE. The amides bring out the brilliance of color in wax mixes or oil solutions, as well as being excellent solvents for oil-soluble dyes. Uses: Carbon paper, Cosmetics, Polishes, W a x formulations ANTI-TACK PROPERTIES. A simulated beeswax may be made from a sticky mixture of rosin and mineral oil amide: by the addition of

Uses:

Rosin . . . 60% Mineral Oil . 10% Amide . . 30% Asphalts . . . Rosins . . . Resins . . . Plastic sheeting

EMULSIFIABILITY. By grinding in a ball mill stable water suspensions are obtained having more than 26% solids. The amides can be readily emulsified and diluted t o almost any percentage of solids. Ordinary techniques may be used, such as stirring Solution N o . 1 into Solution N o . 2 at 80° C. { Amide 4 0 parts | Stearic acid . . . 10 parts No

*

2

( 28% Aqua ammonia . 10 parts ( Water . . . . 940 parts

Usms: Textile sizes, softeners and lubricants CHEMICAL SYNTHESIS. Substituted amides with various halides. Secondary and tertiary amides with acyl halides. Reaction with aldehydes for hydroxy amides. Ethylene oxide, ketene condensations. Acetic anhydride for secondary and tertiary amides.

ARMOUR CHEMICAL

DIVISION

Armour and Company

1355 WEST 31ST STREET



C H I C A G O 9, ILLINOIS