Magramite dissolved in alcohol is painted on
the cardboard cans and when these are stoved the coating becomes
insoluble.
Tarasoff has made a series of condensation products from phenol and
formaldehyde with the addition of sulfonated oils. These are formed by
the action of sulfuric acid on coconut, castor, cottonseed or mineral
oils. The products of this combination are white plastics, opaque,
insoluble and infusible.
Since I am here chiefly concerned with "Creative Chemistry," that is,
with the art of making substances not found in nature, I have not spoken
of shellac, asphaltum, rosin, ozocerite and the innumerable gums, resins
and waxes, animal, mineral and vegetable, that are used either by
themselves or in combination with the synthetics. What particular "dope"
or "mud" is used to coat a canvas or form a telephone receiver is often
hard to find out. The manufacturer finds secrecy safer than the patent
office and the chemist of a rival establishment is apt to be baffled in
his attempt to analyze and imitate.
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