US1573698A - Denatured alcohol - Google Patents

Description

Patented Feb. I6, 1926.

UNITED STATES HENRY C. FULLER, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIG-NOB TO UNION Y 1,573,698 PATENT OFFICE.

CARBIDE AND CABIBON BESEARCH LABORATORIES. INC., OF LONG ISLAND CITY, NEW YORK, A CORPORATION OF NEW YORK.

DENATURED ALCOHOL.

No Drawing.

cles such as liniments, mouth washes, toilet.

Waters, perfumes, hair tonics, bay rum and manyliquid'medicines such as fluid extracts,

tinctures and other mixed medicines.

In my application Serial Number 47 5,47 8

iled June 6, 1921 I have disclosed the use of lycerine derivatives such as the chlorhydrins and halogen aliphatic acid derivatives of glycerine as denaturing a ents for ethyl alcohol. I havenow found t at the derivatives of the glyools such as the halogen all phatic acid esters of the glycols, the lycol alogen-hydrins and the aliphatic an aromatic acid esters of both glycerine and glycols may be used as denaturing agents.

examples of the classes of compounds which I propose to use as denaturing agents are glycerol mono-acetate, ethylene glycol monoacetate, the monochloracetic acid ester of ethylene glycol and the benzoic acid esters of lycerine and ethylene glycol. The. use of tIxe monochlorhydrin of g1 cerine and the monochloracetic-monoglycen e is referred to in my copending application referred to above.

These denaturing agents ma be used in widel varying proportions. a general rule rom 6 to 12 per cent of the denaturing agent is mixed with the alcohol, the particular amount used depending upon the price of the particular denaturing agent emplo ed, the intensit of its denaturing effect an the use to whic the denatured product is to be put. Since the denaturing agents are general more ex nsive than alcohol 1t 15 usuall preferre to use the smallest quantity w ich will produce the desired-denaturin effect.

IE the various materials mentioned the monochloracetic acid esters of the polyhy drio alcohols and particularly the mono- Application filed June 21, 1922. Serial No. 569.951.

chloraceticmonoglyceride and the monochloracetic acid ester of ethylene glycol are preferred. It is to be understood however that the invention is not limited to the use of these specific compounds except as is re-' quired by the appended claims.

example of a denatured alcohol prod uct embraced by my invention is a mixture of 90 parts by volume of 95 per cent ethyl alcohol and 10 parts by volume of the monochloracetic acid ester of ethylene glycol.

Heretofore the work of the Bureau of Internal Revenue has been greatly complicated and the work of manufacturing ethyl alcohol greatly interfered with by the use of a great variety of denaturing agents none of which are of general a plicatlon. Some of the denaturing agents lieretoforeemployed are suitable foruse in the manufacture of only one product or a limited number of products.

The use of the denaturing a ents of my invention largel overcomes this difiiculty. The treated alco 01 is sufficiently denatured to be unfit for use as a beverage due to its un, leasant taste. Even in considerable dilution, the effect is such that when intro duced into the mouth, the'taker cannot swallow it. On the other hand the odor of the denaturing agent is comparatively mild and does not unpleasantly afiect the aromatic substances and volatile oils which enter into the compositions referred to'above. Moreover the denaturing agents are not violently oisonous and are not detrimental to alcool preparations ingested or applied to the skin in small amounts.

The dentured alcohol containing the denaturingagents of my invention, besides being nonotable and capable of rather general app 'cation because the odor is not offensive and because the physiological prop erties of the denaturing agents are not detrimental to the alcohol, retains its solvent properties and its capacity for being compounded into preparations of the kind above described, and it can be diluted with water without precipitation of the denaturing agent.

It is of course understood that mixtures of-two or more of the derivaties of polyhydric alcohols herein described can be used as denaturing agents without departing from my invention.

' ethyl alcohol and a .In the appended claims the expression organic acid esters is intended to include both the aliphatic and aromatic acid esters and the expression polyhydric alcohols includes 5 alcohols containing more than one hydroxyl groug such as the dihydric and trihydric alcoho 'I claim:

1. Denatured eth 1 alcohol comprising lialogen fatty acid ester of a polyhydric alcohol.

2. Denatured ethyl alcohol comprising ethyl alcohol and a chlor fatty acid ester of a polyhydric alcohol.

3. Denatured ethyl alcohol comprising 15 ethyl alcohol and a chloracetic acid ester of a poljyshydric alcohol.

4. enatured ethyl alcohol comprising ethyl alcohol and a chloracetic acid ester of ethylene glycol.

In testimony whereof, I aflix my si ature.

HENRY C. FUL ER.