Air freshener preparations

An insecticide preparation which may be either aerosolized or non-aerosolized is in the form of a dispersion with normally distinct sharply delineated water and active ingredient phases. The preparation contains a dispersal agent consisting of cocodiethanolamide within the range of 0.1 to 10% by weight of the preparation and with the preparation having a pH within the neutral range of approximately 6.5 to 7.5. The invention also comprehends an aerosolized air freshener preparation being in the form of a dispersion with cocodiethanolamide serving as the dispersal agent and with the pH of the preparation also being in the neutral range of approximately 6.5 to 7.5.

BACKGROUND AND SUMMARY OF THE INVENTION 
This invention relates in general to chemical compositions and, more 
particularly, to insecticides and air fresheners which are so uniquely 
formulated that marked economies in production are effected, and 
previously recognized potential hazards are eliminated. 
Heretofore, insecticidal preparations, both aerosolized and 
non-aerosolized, have customarily and expectedly embodied ingredients 
inherently dangerous to the user, as therein a solvent serves as the 
carrier. The same have been potentially harmful for a variety of reasons, 
including, among others, possible flammability, as with petroleum 
distillates, isopropanol, acetone, aromatic solvents, such as, xylene, 
etc.; or an inherent hazard for damaging surfaces, such as, floors, 
furniture, and the like upon which such preparations might ultimately come 
to rest, as illustratively wherein methylene chloride, to mention one of 
the most common, would serve as the carrier; or present a serious peril to 
the health of the user, with especial concern for disorders of the nervous 
system, with there being a veritable host of well known carriers capable 
of such activity. In addition to all such possible hazards through use of 
currently available insecticides, in aerosolized insecticides, wherein 
typically an emulsion has been formed, and with the carrier being water, 
considerable expense is entailed in providing the necessary degree of 
propellant. Similarly, with air freshener preparations, in aerosolized 
form, such as, room deodorizers, and the like, there is included 
necessarily an exceedingly high proportionality of propellant which 
renders such preparations relatively costly. 
Consequently, it would be desired with aerosolized and non-aerosolized 
insecticides to reduce the level of the carrier which is the source of the 
dangers outlined, while also with aerosolized insecticides, as well as air 
fresheners which are already water based, the aim would be to lower 
costliness in production which could be achieved by reducing the relative 
amount of propellant. To the present time, as preferable as these goals 
might be, the same have not been accomplished. 
However, by means of the present invention, it has been found that the 
incorporation within such preparations of cocodiethanolamide, as developed 
hereinbelow, quite unexpectedly and surprisingly produces the results 
sought with respect to the insecticides and air fresheners by reason of 
the unique property of serving as a dispersal agent. This unusual property 
of cocodiethanolamide has been disclosed in applicant's co-pending 
applications Ser. Nos. 282,050, now U.S. Pat. No. 4,439,345, and 237,155, 
now U.S. Pat. No. 4,439,342, entitled "Aerosol Preparations", as well as 
in bulk form in pending application Ser. No. 250,745, now U.S. Pat. No. 
4,439,344, entitled "Water Dispersions". Thus, it is to be understood that 
with the present invention cocodiethanolamide is not incorporated for 
utilization of its recognized emulsifying and stabilizing properties, but 
is used to bring about, within the systems of the preparations of the type 
stated, a condition tantamount to an unstable emulsion wherein the phases 
tend to separate, but are transitorily intermixed into relative stability 
upon agitation. Upon dispensing immediately subsequent to the agitation, 
the phases will separate and revert to the constituent components. Thus, 
with the present invention, without any intention of limitation, the 
preparations will be referred to as dispersions to signify the inherent 
instability, as distinguished from emulsions with which cocodiethanolamide 
has been historically associated. As disclosed in applicant's aforesaid 
co-pending applications, the dispersion characteristics of the preparation 
are controlling, as distinguished from the expected emulsion 
characteristics of the dispensed preparations. 
Therefore, it is an object of the present invention to provide insecticide 
preparations, both aerosolized and non-aerosolized, and aerosolized air 
fresheners which embody a dispersal agent whose presence eliminates the 
heretofore reluctantly accepted hazards presented by the commonly used 
solvents for the particular active ingredients. 
It is another object of the present invention to provide insecticides and 
air fresheners in aerosol form which embody an amount of propellant 
markedly reduced from that currently considered requisite for effective 
dispensation. 
It is a further object of the present invention to provide insecticidal and 
air freshener preparations which may incorporate as active ingredients 
liquids and combinations of liquids, as well as powders. 
It is a still further object of the present invention to provide 
insecticide preparations, both in aerosolized and non-aerosolized form, 
and aerosolized air fresheners which permit utilization of water as a 
carrier for hydrophobic chemicals, as well as for chemicals that have been 
previously delivered by means of petrochemical, or other non-aqueous 
solvents; and, additionally, for improving the effectiveness of current 
systems which may incorporate water as a carrier. 
It is another object of the present invention to provide an insecticidal 
preparation which embodies a dispersal agent for elimination of the usual 
potential hazards without diminution in the biological activity of the 
agent or agents being dispensed since such preparations may incorporate 
various combinations of ingredients to endow the preparation with the 
designed insect-treating qualities, such as, residual action alone, or 
with repellancy, knock-down, etc. 
It is a further object of the present invention to provide a preparation of 
the character stated wherein the physical and chemical characteristics of 
the active ingredients are unaltered from the pre-diluted state thereof. 
It is another object of the present invention to provide preparations of 
the character stated which possess substantially indefinite shelf life so 
that regardless of the transpired interval between production and 
dispensing, no loss of activity occurs. 
It is a still further object of the present invention to provide 
preparations of the character stated which may be economically produced in 
accordance with well known production techniques so that novel 
instrumentation and equipment are not required. 
DESCRIPTION OF THE INVENTION 
The present invention contemplates the development of insecticide 
preparations, both aerosolized and non-aerosolized, and aerosolized air 
fresheners, which, by reason of the incorporation of cocodiethanolamide in 
a manner to serve as a dispersal agent, are physically and chemically 
distinct from classical stable emulsions. 
The system of the present invention embodies generally immisicible phases, 
one being a water phase, and the other being a continuous phase; which 
phases are clearly defined, being sharply distinct with a clear line of 
delineation. The active ingredient for the purposes of this invention is 
primarily in the continuous phase which might be considered the "oil" 
phase, which phase contains the aforesaid dispersal agent; the same being 
soluble in both phases, but to different degrees. Thus, preparations of 
the present invention in their normal tranquil state will be 
unhomogenized, with the definition between the two phases being visibly 
unmistakable. Thus, preparations of the type herein disclosed are not 
stable emulsions, but, as expressed above, are referred to as 
"dispersions" for purposes of exposition. But in addition to entailing the 
dispersal agent, the two phase systems of the present invention possess a 
controlled pH which may be described as being "substantially neutral", 
that is, within the range of approximately 6.5 to 7.5. This particular 
condition is one of critical importance. 
The necessity for maintaining a pH within the aforesaid neutral range is 
not entirely understood; but it is believed that with a pH in the alkaline 
range, that is, above approximately 7.5, the cocodiethanolamide which when 
dispersed in water possesses an inherent pH of about 9, will function in 
its normally expected manner, that is, as a soap, emulsifier, or 
stabilizer, and that when cocodiethanolamide is within an acid 
environment, that is, below approximately 6.5, the acid constituents of 
cocodiethanolamide are free to react in a manner consistent with acids. 
Therefore, the development of pH in the aforesaid neutral range with the 
preparations of the present invention in some manner uniquely enables the 
contained cocodiethanolamide to act as a dispersal agent and, thus, in a 
fashion quite unexpected in light of its generally known properties. 
Furthermore, it has been discovered that these formulations are of maximum 
effectiveness, with the pH thereof in the neutral range, that is, by 
providing the proper particle size, the degree of biological activity, 
etc. 
Typically with all the myriad insecticide preparations and air fresheners 
studied and analyzed, the same are formed with a pH slightly on the 
alkaline side, since the pH of a 1.0% water dispersion of 
cocodiethanolamide* is approximately 9.0. It is, of course, understood 
that other factors than the pH of the cocodiethanolamide might, to some 
extent, dictate the inherent pH as by reason of the fundamental acidity or 
alkalinity of certain active ingredients. Although, as indicated, it 
appears that all insecticide active ingredients are water insoluble so 
that there would be no inherent pH and, accordingly, the control of the 
inherent pH by the cocodiethanolamide would be apparent. Those particular 
active ingredients for insecticides and air fresheners which possess some 
tendancy to hydrolyze appear to uniformly provide an alkaline pH. 
Consequently, to all intents and purposes, the pH of the 
cocodiethanolamide would be the pH controlling entity within the systems 
herein considered. Thus, with the pH above the neutral range, the 
adjustment thereof is accomplished in the ordinary fashion, that is, by 
utilization of acidic agents, such as, dilute acid solutions, including, 
for example only, dilute nitric acid, dilute phosphoric acid, dilute 
citric acid, ad infinitum. In accordance with commonly practiced 
techniques, the selection of the particular acidic agent is grounded upon 
its non-reactiveness with other chemicals in the system so as not to 
produce unwanted compounds that might in some way adversely affect the 
ultimate product, that is, either chemical stability, container stability, 
etc. Merely exemplary would be the fact that dilute citric acid would not 
be an acidic agent of choice for aerosols since it might cause the 
formation of citrates which have a corrosive effect upon the particular 
containers. The selection of the appropriate acidic agent does not exceed 
the capacity of chemists having ordinary skill in the art. 
FNT *A preparation of this compound which is fully effective for the purpose of 
this invention constitutes an amber liquid having a congealing point of 
approximately 6.degree. C. and with a specific gravity at 25.degree. C. of 
0.99. The free or unreacted fatty acid, as lauric, 3%-4% maximum and the 
pH 1% dispersion is between 8 and 9. This compound is stated to possess 
solubility in alcohols, glycols, ketones, esters, aromatic and aliphatic 
hydrocarbons and chlorinated solvents, while also being dispersible in 
water at low concentrations of 1 to 2%. It is stated to become soluble at 
higher concentrations and with a 10% solution being quite viscous 
approximating a gel. Such preparation is commercially offered under the 
trademark CLINDROL 101-CG by Clintwood Company, Chicago, Ill. 
The adjusting of the insecticide and air fresheners of the present 
invention can manifestly be accomplished in various ways; the most facile 
being to adjust the inherent pH, such as, 9.0, after the dispersion has 
been formed with the included active ingredients and the like. However, 
adjusting can also be achieved by adding the dilute acid solutions 
directly to the water after it has been determined experimentally 
precisely that amount of chemicals required to attain the neutral range. 
This last-mentioned method has particular advantages where the water is 
added in an aerosol as a separate filling stage. As indicated, the 
development of the resultant pH is brought about in the usual manner, that 
is, by adding a predetermined amount to the dispersion, then mixing the 
dispersion by the use of standard mixing equipment for a preselected 
period, and then determining the pH, with additional acidic agent being 
added as indicated. 
The importance of the neutral range of the preparations of the present 
invention has been well demonstrated by the fact that with aerosol 
preparations a pH outside of such range, on either side, has a direct and 
immediate affect upon the particle size causing the same to be relatively 
too large or to take on an undesired foam-like characteristic. Also, 
failure to observe the aforesaid neutral range is productive of a grave 
diminution in the biological activity of an insecticide. With air 
fresheners, elevated particle sizes or foam will cause droplets of 
undesired volume to deposit upon adjcent surfaces, such as, furniture, 
flooring, walls and the like, with deleterious affect thereon, as well as 
to cause the air freshener to have a loss in effective capacity to 
accomplish its intended purpose. 
Thus, the adjusting above discussed is a requisite step since the inherent 
pH is substantially controlled by the dispersal agent and, with the 
adjusting to the critical neutral range, no chemical alteration of the 
ingredients is effected so that the properties thereof are unaffected. 
The relative amount of cocodiethanolamide to serve as a dispersal agent for 
the present preparations has been found that for either aerosolized or 
non-aerosolized preparations the same will fall within a range of 
approximately 0.1% to 10% of the weight of the ultimate preparation so 
that extremely limited amounts are efficacious for the various 
applications. The relative amount of cocodiethanolamide to be used is 
determined by the particular spray characteristics sought which, of 
course, are dependent upon the particular end use of the preparation to be 
dispensed. It is apparent that particle size may be the determinant, such 
as, for example, in a space spray. Therefore, cocodiethanolamide is added 
in limited increments until the desired characteristics have been met. 
But, as a matter of extensive investigative experience, it has been found 
that with insecticide preparations and air fresheners, the 
cocodiethanolamide will fall within a range of 0.1% to 1.0% of the weight 
of the preparation or may necessitate up to approximately 2.4%, whether 
the system be aerosolized or not. As more fully developed hereinbelow, a 
relatively small quantity of cocodiethanolamide, together with the 
provision of a pH within the aforesaid neutral range, will permit of such 
relative reduction in the amounts of solvents for the active ingredients 
as to substantially eliminate the hazards normally presented by such 
solvents. The preparations wherein a significant portion of the carrier 
has been a solvent the relative quantity of the carriers for preparations 
of the present invention are in the general order of but 5.0% of that 
which has been heretofore deemed necessary for compositions of such 
character, and being replaced by water. It is understood that in certain 
compositions there may be some limited variance from 5.0%. In addition to 
rendering such preparations effectively free of hazardous contingencies, 
substantial economies may obviously be effected in production since water 
is substituted for the unnecessary costly carriers. As indicated, the 
active ingredients of insecticide preparations, such as, for example, 
carbamates, organo-phosphates, and the like, have required solvents 
serving as the carrier which present a high danger potential in one form 
or another. Among the more common carriers, petroleum distillates, 
acetone, isopropanol, butyl Cellosolve*, various aromatic solvents, such 
as, xylene, toluene, etc., are flammable; while others, such as, methylene 
chloride, present a health hazard as well as being productive of damaging 
effects upon spray-receiving surfaces. The foregoing is not intended to be 
comprehensive, but merely indicative of the general character of carriers 
heretofore utilized in insecticides which are of a recognized perilous 
potential. 
FNT *Trademark of Union Carbide Corp. for ethylene glycol monobutyl ether. 
Furthermore, with aerosolized preparations wherein water is already 
utilized as a carrier, the present invention will permit the reduction of 
the relative quantity of the propellant, with consequent commensurate 
increase in the amount of water and thus bring about a considerable 
monetary saving. 
Active ingredients for incorporation in insecticide preparations according 
to the present invention, whether aerosolized or otherwise, are 
substantially water insoluble and comprehend the myriad compounds having 
the known desired characteristics. The following are to be considered 
merely exemplary since it is within the capacity of one having ordinary 
skill in this art to make the selection of the active ingredient. 
One such group consists of the natural and synthetic pyrethrins or 
pyrethroids, which latter are considered "mimics" of the natural 
pyrethrins in that they possess comparable properties, but diverge 
markedly in chemical structure. Among such synthetics may be found 
sumethrin, resmethrin, tetramethrin, permethrin, d-trans allethrin, 
allethrin, fenvalerate, and phenothrin. Used in combination with the 
pyrethroids both natural and synthetic, is a class of compounds considered 
as synergists and include, among others, piperonyl butoxide, 
n-octyl-bicycloheptene dicarboximide, butoxy polypropylene glycol, and 
2-hydroxyethyl-n-octyl sulfide. 
Another major group of insecticides are the carbamates, smong the better 
known of which are propoxyur, 1-naphthyl n-methyl carbamate, Ficam*, etc. 
FNT *A trademark of BFC Chemical Co. of Wilmington, Del. for 
2,2-dimethyl-1,3-benzodioxol-4-ol methyl carbamate 
An additional group of well known insecticides comprises the 
organo-phosphates, among which are diazinon, chlorpyrofos, dimethyl 
dichlorovinyl phosphate (DDVP), etc. 
Accordingly, the foregoing is not intended to be an exhaustive enumeration 
of the various active ingredients for insecticides of the present 
invention, but merely serves to indicate that effectively all generally 
known insecticidal active ingredients are adaptable for incorporation. 
With respect to aerosol preparations, the propellants utilized are of 
generally accepted types, that is, liquefied, such as, hydrocarbons or 
halocarbons, and blends of the same, or compressed gases, or combinations 
of liquefied and compressed gases. The selection of the propellant is 
dependent upon desired characteristics relative to evaporation rate, 
solubility, pressure, as well as economics and safety, all in accordance 
with present day considerations. It is to be undersood that the choice of 
propellant in the present invention is dictated by the same considerations 
as in aerosol preparations generally and, thus, the precise propellant 
does not form a part of the present invention. 
In order to control the properties of the selected propellant, an organic 
auxiliary solvent may be selected from a very wide range, all as in 
accordance with known technology. Such solvents are for film controlling 
purposes to assure that a foam is not created, as well as for controlling 
the evaporation rate, which latter may also be controlled by selecting a 
combination of solvents that will dry in unison with the active 
ingredients. With the insecticides of the present invention in aerosolized 
form, it is not of immediate significance whether a film is formed, the 
criterion being that the dispersed material possesses the desired particle 
size, effective biological activity and the like. Wherefore, foam 
formation is undesired so that in the present context the term "film 
controller" is used primarily to signify an agent inhibiting foam 
formation just as the compounds referred to as auxiliary solvets. "Organic 
auxiliary solvents" and "film controllers" are interchangeable terms 
herein. 
Included among such solvents are those which have heretofore been widely 
known in the aerosol field, such as, aromatic hydrocarbons, examples of 
which are benzene, toluene, xylene, commercial solvents which flash at 
100.degree. and 150.degree.; aliphatics, and aliphatic petroleum napthas, 
such as heptane, hexane, kerosene, lacquer diluent, napthol spirits, 
mineral seal oil, mineral spirits, odorless mineral spirits, deodorized 
kerosene, pentane, petroleum ether, Stoddard solvent, textile spirits, 
VM&P naptha, isoparaffinic hydrocarbons, petroleum distillates, as well as 
mixtures and blends thereof. 
Another general class of auxiliary solvents or film controllers are the 
chlorinated hydrocarbons; among the more commonly used are carbon 
tetrachloride; 1,1,1-trichlorethane, methylene chloride, and 
perchlorethylene. 
Among other agents suitable for controlling the propellent are mineral oils 
with boiling points above 300.degree. F. including white oils, such as 
DRAKEOL* #7, paraffinic oils, and isoparaffinic oils; including glycols 
with initial boiling points above 350.degree. F., such as propylene 
glycol, ethylene glycol, hexylene glycol, dipropylene glycol, diethylene 
glycol and triethylene glycol; including glycol ethers with initial 
boiling points above 350.degree. F., such as dipropylene glycol monomethyl 
ether, diethylene glycol monoethyl ether, diethylene glycol monomethyl 
ether, diethylene glycol monobutyl ether and tripropylene glycol monoethyl 
ether; and including aromatic blends or composition solvents containing a 
high content of aromatic hydrocarbons with initial boiling points above 
360.degree. F., such as HI-SOL 15**. 
FNT *A trademark of Pennreco, Inc. to identify a series of white mineral oils, 
colorless, odorless and tasteless hydrocarbon distillates meeting the 
U.S.P. XV and N.F.X requirements for "petroleum liquidum". 
FNT **A trademark of Ashland Chemical Company for aromatic petroleum solvents. 
The active ingredient may not be entirely soluble in the particular solvent 
or film controller utilized but a low degree of solubility does permit of 
the solvent or film controller as forming a bridge, as it were, between 
the active ingredient and the propellant having a solubilizing, even 
though limited, effect thereupon. A limited amount of such agent, as 
within the range of 2% to 5% by weight is sufficient and is manifestly 
applicable where the propellant is liquefied. 
In addition to the foregoing, which is not meant to suggest an exhaustive 
compilation of suitable auxiliary solvents, there may be included tetra 
hydrofuran and 2-nitropropane. As indicated above, and as is implicit in 
the involved chemistry, the choice of solvent is made in accordance with 
well known considerations, such as, as indicated, evaporation rate 
control, compatibility with the particular active ingredient, etc. 
Further, it is understood that such solvents may be intermixed or blended 
to produce a desired resultant characteristic. The blending of heptane and 
hexane is but illustrative in that a blend of the same would dry somewhat 
slower than hexane alone, but faster than heptane if used alone. 
The choice of auxiliary solvent is dictated by the same general 
considerations as in the field of aerosols and, hence, the precise 
auxiliary solvent does not form a part of the present invention. 
In the production of insecticide preparations in accordance with the 
present invention, the relative quantity of the insecticidal active 
ingredient is determined in accordance with generally accepted, customary 
practice. Thus, from currently available literature the amounts of 
recognized insecticidal agents to kill insects of various types can be 
readily obtained. Thus, for example, with insects of the flying type, 0.1% 
pyrethrins may be lethal; with insects of the crawling type a greater 
amount of the agent would be required, such as, in the order of 0.3%. In 
those situations wherein the available literature does not provide 
definitive information on this particular point, the amount necessary can 
be experimentally determined by biological assays, all in accordance with 
well known laboratory techniques. 
The present invention does not alter the relative amounts of insecticidal 
agents incorporated than had been heretofore required since such are 
determined by the same parameters, namely that level of biological 
activity requisite to achieve the desired results upon the particular 
insect or type of insect forming the target. It is recognized that with 
some agents 0.5% by weight of the particular preparation would be adequate 
so that herein it should be understood that the amount of insecticide 
agent will be within the range which has been either historically or 
experimentally observed as critical. 
Thus, in essence, insecticidal preparations formed in accordance with the 
present invention comprise three basic constituents namely the insecticide 
active ingredient or combinations thereof which will be in a quantity 
sufficient (q.s.) for the particular application in accordance with the 
foregoing; cocodiethanolamide within a range of 0.1% to 10% by weight of 
the preparation; with the balance being water, which could be as much as 
99.85%, as wherein the cocodiethanolamide would represent 0.1% and the 
insecticide 0.05% by weight. To achieve certain specific desired effects 
there may be added various solvents and other ingredients to the 
preparation, at the expense of the water; reference, for example, being 
made to agents for affecting viscosity, particle size, odor, and the like. 
The foregoing would be applicable to preparations which were 
non-aerosolized. 
However, to render the insecticide preparation in aerosol form, a 
relatively small percent of solvent is further added to aid in 
incorporating the propellant within the system when such propellant is a 
liquefied compressed gas; such additional solvent or film controlling 
agent being generally within the range of approximately 2.0 to 5.0% by 
weight which has been found normally sufficient; although 1% to 20% would 
be satisfactory. This additional solvent will proportionately reduce the 
water content. With compressed gases alone no solvent may be necessary, 
but it could range up to 20% depending upon the spray characteristics 
desired. The particular propellant selected, that is, whether a compressed 
gas or a liquefied compressed gas, or combination thereof, will be 
determined by the specific spray characteristics sought, all as may be 
more evident from the examples set forth hereinbelow. The propellant will, 
of course, cause a further reduction in the amount of water from that 
which would have been used in a non-aerosol or so-called bulk formulation 
as above outlined. 
Aerosol insecticide preparations possessing the properties of the present 
invention have the following general formula wherein liquefied compressed 
gas propellants, namely the hydrocarbons and halocarbons, are used: 
______________________________________ 
PERCENT BY WEIGHT 
______________________________________ 
Active Ingredient q.s. 
Dispersal Agent 0.1% to 10% 
cocodiethanolamide 
Solvent/Film Controlling Agent 
Approx. 1% to 20% 
Propellant Approx. 2.5% to 30% 
Water Approx. 35% to 96.3% 
______________________________________ 
In those preparations wherein compressed gas constitutes the propellant, 
the general formulation would be as follows: 
______________________________________ 
PERCENT BY WEIGHT 
______________________________________ 
Active Ingredient q.s. 
Dispersal Agent 0.1% to 10% 
cocodiethanolamide 
Solvent/Film Controlling Agent 
Approx. 0% to 20% 
Propellant Approx. 0.1% to 5% 
Water Approx. 35% to 99.5% 
______________________________________ 
In the insecticide preparation wherein the propellant comprises a 
combination of compressed gases and liquefied compressed gases, the 
general formula would be as follows: 
______________________________________ 
PERCENT BY WEIGHT 
______________________________________ 
Active Ingredient q.s. 
Dispersal Agent 0.1% to 10% 
cocodiethanolamide 
Solvent/Film Controlling Agent 
Approx. 1.0% to 20% 
Propellant 
liquefied Approx. 2.0% to 30% 
gaseous Approx. 0.1% to 5% 
Water Approx. 35% to 96.7% 
______________________________________ 
The application of these formulations will become more comprehensible from 
a study of specific formulae set forth hereinbelow. It is to be understood 
that preparations incorporating the below exemplary formulae are adjusted 
within the aforesaid neutral range of 6.5 to 7.5 as described hereinabove. 
Also the examples will demonstrate the versatility of the present 
invention for providing insecticides having various selected qualities, 
such as, repellancy, residual action, knock-down, sound reduction, etc. 
INSECTICIDE AEROSOL PREATIONS