Note: Descriptions are shown in the official language in which they were submitted.
Pine oil compositions axe well-known as cleansing agents fox a
wide ~7ariety of surfaces; see Pine Oil Formular~7, Section B, Pine and Paper
Chemicals Department, Hercules, Inc., p. 13 - 42. Although pine oil
compositions are known which are acti~7e against both gram-positi~7e and gram-
negative micxoorganisms, improvements in both efficacy and consumer
aesthetics are desired. Pine oil formulations heretofore have used pine
oil containing a m mimum of about 80% terpene alcohols, typically about
85 - 90% terp,ene alcohols, and by the addition of a suitable nonionic sux-
face active agent and a suitable quate m ary ammonium compoNnd, such compo-
sitions have been efficacious. However, efficacy against both gram-positive
and gram-negati~7e microorganisms using pine oil with low terpene alcohol,
e.g., minimum 50% terpene alcohols, has not been demonstrated.
m e present invention provides pine oil compositions oomprising
pine oil having a minimum of 50% terpene aloohols, a nonionic surface
active agent, a particular quate mary ammonium oompound, isopropanol, and
water.
MDre particulaxly, the present invention relates to a cleansing
agent oomposition oonsisting essentially of (1) about 5 to 30 peroent by
weight of pine oil oontaining at least about 50 percent terpene aloohols;
(2) about 1 to 20 percent by weight of a nonionic surface active agent select-
ed fron lineax prim~y (C12 to C18) aloohols ethoxylated with about 7 to 15
moles of ethylene oxide and ethoxylated aIkyl phenols with about 7 to 18
moles of ethylene oxide; (3) about 1.5 to 5 percent by weight of a
quaternary ammDnium oompound selected from diaLkyldimethylamm~nium chlorides
wherein the aIkyl groups are identical or different and contain from 8 to
12 carbon atoms; (4) ethanol or i~opropanol; and (5) water.
m e main component of the pine oil is alpha terpineol along with
other co~ponents, terpene diols and terpene hydrocarbons. For use in the
present invention, terpene aloohol content is at least about 50%.
me amount of pine oil used in the oompositions of the invention
ranges from about 5 to 30 peroent by weight, preferably about 20 percent
by weight.
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0t320
The nonionic surface active agents used in combination
with the quaternary ammonium compounds described hereinbelow are
selected from linear pirmary alcohols ~C12 to C18) ethoxylated
with from 7 to 15 moles of ethylene oxide and ethoxylated alkyl
phenols ranging from 7 to 1~ moles of ethylene oxide. Such com-
pounds include Neodol 25-9 and Neodol 25-12 (Shell Chemical Co.),
Alfonic 1218-70 (Conoco Chemicals Co.), and Igepal C0-7-30
(GAF Corp.). The amount of nonionic surface active agent used
ranges from about 1 to 20 percent by weight, preferably about
2 to 15 percent by weight.
The quaternary ammonium compound used in combination
with the above described nonionic surface active agents are
selected from dialkyldimethylammonium chlorides wherein the alkyl
group contains from 8 to 12 carbon atoms. The dialkyl quaternary
ammonium compounds may be symmetrical or assymmetrical, that is
the long alkyl groups may be identical or different. A commerc-
ially available suitable quaternary ammonium compound for the
invention is Bardac 20, a mixture of 25% dioctyldimethylammonium
chloride, 25% didecyldimethylammonium chloride, and 50% octyl-
decyldimethylammonium chloride.
The amount of quaternary ammonium compound used will
range from about 1.5 to 5 percent by weight, preferably about
2-3 percent by weight.
The compositions also contain 10 to 20 percent by weight
of a lower aliphatic alcohol. The alcohol may preferably be iso-
propanol in an amount of about 15-16 percent by weight. The re-
mainder of the composition is water. Of course small amounts of
dyes and/or brighteners, etc. may be included without departing
from the scope of the invention.
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i~Z0~320
When diluted with water, the compositions form a white,
milky emulsion. In use a dilution of about 2 ounces/gallon of
water i9 practical (dilution range approximately 1:64). Thus,
the quaternary content of the end use diluted composition should
be adequate to provide minimum of 200 parts per million of active
quaternary compound.
The efficacy of the compositions may be determined par-
ticularly with respect to their action vs. gram-positive and
gram-negative bacteria by conventional methods, e.g., "Disinfec-
tants--Use Dilution Method" A.O.A.C. Official Final Action, p 61,
11th Ed., 1970, using Salmonella choleraesuis, Staphylococcus
aureus and E. coli.
-- 3 --
`~
0
Example 1
A formulation is prepared using the following
materials:
Parts by Weight
Pine Oil( ~% minimum terpene alcohols) 20.0
Neodol 25-9* 10.0
BTC 2125** (50~) 4-5
Isopropanol 16.0
Dyes 0'034
Water q.s.
*Shell Chemical Co. Ethoxylated mixture of normal and 2-methyl
branched primary C12 - C15 fatty alcohols with an average of
9 moles of ethylene oxide.
` **Onyx Chemical Co. Mixture of:
50% n~alkyldimethylbenzylammonium chloride
(C14-C18 alkyl)
50~ n-alkyldimethylethylbenzylammonium chloride
(C12 C18 alkyl)
Using the A.O.A.C. Use Dilution Method, A.O.A.C. Offi-
cial Final Action, p 61, 11th Ed., 1970, the formulation shows
efficacy (59-60 /60) in 42% of the samples against staphylococcus
aureus when diluted 1:64 with water.
Note: Results are given in figures represented by X /X where
X indicates no growth of bacteria in the indicated number of
` tubes and X is the total number of tubes.
-- 4 --
11'~01~20
Example 2
A formulation is prepared using the following
materials:
Parts by Weight
Pine Oil (50% minimum terpene alcohols) 20.0
Neodol 25-9* 10.0
Bardac 20** (50%) 4.5
Isopropanol 16.0
Dyes 0 034
Water q.s.
*Shell Chemical Co. (See Example 1)
**Lonza Chemical Co. Mixture of: 25% Dioctyldimethyl-
ammonium chloride; 25% Didecyldimethylammonium chloride and
50% Octyldecyldimethylammonium chloride.
. _ .. . .
Using the A.O.A.C Use Dilution Method, A.O.A.C. Offi-
cial Final Action, p 61, 11th Ed., 1970, the formulation shows
efficacy (59-60 /60) in 95% of the samples against the following
microorganisms when diluted 1:64 with water:
Staphylococcus aureus
Salmonella choleraesuis
E. ~oli
It will be apparent from Examples 1 and 2 that a
greatly enhanced efficacy is obtained by the use of the dialkyl-
dimethyl quaternary ammonium compounds over the quaternary
having only one long a]kyl group.
