1,680,047
Patented Aug. 7, 1928.
JOHN Y. HUBER, JR, on nnnmonn, PENNSYLVANIA.
STABILIZATION OF'OILS, FATS, AND WAX-ES.
No Drawing.
Application ?led February {1, 1924.v Serial No. 690,667.}
This invention relates to the stabilization
In utilizing furfural for stabilizing oils,
of oils, fats and waxes, and the principal fats and waxes, either as isolated bodies or
object of the invention is to provide novel 1n association with others, it is desirable to
and advantageous means for preventing the thoroughly; incorporate, the furfural 'and
5 changes in these bodies which result in de to‘ obtain as homogeneous a mixture as pos 60
terioration of what is known‘ as rancidity. sible. WVith isolated bodies of oils, fats and ’
It is generally known that substances such ‘ waxes, the mixture may ordinarily be accom
as formaldehyde, sodium benzoate, borax, phshed by stirring or otherwise agitating
.and salicylicacid may be used for preserving the mass after introduction of the furfural,
10 purposes, but due topthe fact that they are although other methods may be used.
non-miscible with oils, fats and waxes, they Where the oil, fat, or wax is an ingredient of
are not suited for use as stabilizers with a compond, the furfural may be introduced
either before or after inclusion of the said
these substances.
- '_
'
I have discovered a practical method of substances. _Or the furfural may be mixed
1-5 stabilizing oils, fats, waxes and the like by with ‘another of the ingredients 'of the com
' addition thereto of a substance having prop pound, or may be added separately to the
erties such that it lends itself readily to the mixture. Where the oil, fat, or wax is a
formation, with said oils, fats and waxes, natural element of the body, the furfural
I
of a homogeneous mass, and which so affects
20 'those elements responsible for deterioration
65
may, if necessary, be applied under pressure
orin atomized or vaporous form.
.
Although the invention may ?nd itsmost
useful application in the stabilization of
- der them innocuous.
More speci?cally, I have discovered that fats, oils, and Waxes, both animal and vege
" furfural, possessing exceptional stabilizing table, a and to compounds. containing these
, and the development of rancidity as to ren
.
- 25 properties, is by reason of its oily‘nature bodies, I do not-desire to limit myself to use
readily miscible ‘with fats, oils and waxes, with these classes of substances alone. It
and that it possesses in marked degree the may for example ?nd useful application in
requisites of a stablizer for these substances. the stabilization of mineral oils.
Furfural retains its e?ectiveness over .com
.
> ‘I further do not wish to limit the inven- ‘
30 paratively long periods of time, and when tion to any proportions of the furfural and 85
added to the bodies in su?icient quantities the stabilized bodies, ‘since the proportions
and thoroughly incorporated therein is cap- may vary largely and in the main will be
able of maintaining the stability thereof over controlled by the requirements of the'par—
comparatively long periods of time. It-is,v ticular case, the nature of the body stabilized,
85 generally speaking, desirable to use small the extent .of the period. over which the
00
amounts of this or any other stabilizer, and stabilization is to continue, and the con
exceedingly small amounts of furfural may ditions as to ‘temperature, etc, to which the
be used with great effectiveness. I have ob stabilized bodies V are subjected.
tained, for example, highly satisfactory Furfural ?nds, among others, a useful ap
40 results by employing 1 part of furfural to plication in preservation of butter and pow-'
10,000 parts of the fat or oil which I desire dered milk, particularly powdered milk rich
to stabilize. Even smaller amounts may be in butter fat. In the latter case, the fur~
employed with success, and furfural may be fural may be introduced into the milk prior
. used in larger proportions’ where it is de to dehydration. It‘ will also be understood
‘45 ‘sired to maintain the stability of the fat‘ or that the invention extends to the stabiliza- 100
tion of products containing oils,‘ fats ‘ or
, It will. be understood that furfural may waxes-which in course of manufacture are
oil over long periods of time.
be used not only in admixture with the fats, subjected to heat treatments, such as bakery
-. oils, and waxes for the preservation of free
50 bodies of these substances, but may be used
and like products. ‘
' '
I am aware that aldehydes as a class are 105
also with mixtures of compounds and with known'and'have been employed as reserva
' bodies which naturally or otherwise comprise tives, but so far as I am aware, fur ural has
55
these substances, where it is desired to obtain never, prior to'm invention, been employed
stabilized effects and to retard the develop for stabilizing ats, oils, waxes and like '
bodies; nor has it been known, prior to my no
ment of raneidity.
'
-
2 .
1,680,047
invention, that by reason ‘of characteristics proportions by weight of 10,000 to 1, re
peculiar to this particular aldehyde, the spectively.
latter lends itself particularly Well to the
2. The method of stabilizing food prod
stabilization. of bodies of this class.
_
> ucts containing fatty material, which con
15
I mean all such materials of animal and. insufficient to affect the ?avor of said prod
20
By the expression “fats, oils and Waxes”, sists in adding thereto furfural in amounts
vegetable derivation; and the term “fatty
ucts.
materials” employed in the claims is to be
understood as coextensive in scope and em
-
‘
3. As a new article of manufacture, a food
product containing fatty material‘ and a
bracing generally all fats, oils and waxes of stabilizer in the form of furfural in amount
animal and vegetable derivation.
insuf?cient to affect the ?avor of said
I claim:
product.
fatty
1. 'As
material
a newand
article
furfural
of manufacture,
in the relative
a
7 V
V JOHNV Y. HUBER,
V
JR.
D l SCLAI M E R
l,;680r,04.-7.—-John Y. Hube?Jr, Ardmore, Pa.
STABILIZATION OF OILs, FATS, AND
WAXES. Patent dated August 7 , 1928,: Disclaimer ?led May 27, 1937,
by the patentee. - '
Hereby enters this disclaimer to all of the claims, namely, 1, 2, and 30f said Let
ters Patent.
Gazette, June 22, 17937.]