CA1285221C - Rinse water additive - Google Patents
Rinse water additiveInfo
- Publication number
- CA1285221C CA1285221C CA000503006A CA503006A CA1285221C CA 1285221 C CA1285221 C CA 1285221C CA 000503006 A CA000503006 A CA 000503006A CA 503006 A CA503006 A CA 503006A CA 1285221 C CA1285221 C CA 1285221C
- Authority
- CA
- Canada
- Prior art keywords
- quaternary ammonium
- ammonium salt
- oxyalkylene polymer
- rinsing
- cans
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Abstract
ABSTRACT OF THE DISCLOSURE
Cans containing food are rinsed with an aqueous solu-tion of quaternary ammonium salt and oxyalkylene polymer (homopolymer of oxyethylene or copolymer of oxyethylene and oxypropylene).
Cans containing food are rinsed with an aqueous solu-tion of quaternary ammonium salt and oxyalkylene polymer (homopolymer of oxyethylene or copolymer of oxyethylene and oxypropylene).
Description
12~3~;221 RINSE WATER ADDITIVE
This invention relates to a rinse water additive, and more particularly to the rinsing of materials. Most particularly, this invention relates to the rinsing of metal food cans.
The appearance of cans containing food is of utmost importance in that the consuming public will ordinarily reject a stained or spotted can. In producing food in cans, in many processes, the food in the cans is subjected to a steaming process, and subsequent to such steaming process, it is necessary to rinse the cans with water so as to provide a food can which is ~ree of staining or spotting. As hereinabove indicated, the ability to effectively rinse such cans so as to prevent stained or spotted food cans is an important step in the overall process, and as a result, there is a need for improved rinsing compositions so as to prevent such staining or spotting of cans.
The invention provides a process for rinsing cans, containing food, comprising:
rinsing the cans with water containing an effective rinsing amount of both a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer, selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6, 000, and copolymers of oxyethylene and oxypropylene having a molecular weight of at least 1,000 and not in excess of 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt being from 1: 25 to 25 :1, and said quaternary ammonium salt having the following structural formula:
~..
12B52Z~
~R4 Rl- N - R +~
wherein Rl, R2, R3, and R4 may be the same or different hydrocarbon radical and are selected from the group comprising aromatic or aliphatic hydrocarbon, with such aliphatic hydrocarbon generally being a branched or straight chain alkyl group and A is an anion.
The invention further provides a process for rinsing 10 cans containing food after steaming of the cans, comprising:
rinsing the cans with water containing an effective rinsing arnount of a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6,000, and copolymers of oxyethylene and oxypropylene wherein the oxyethylene content is from 30% to 99% by weight, and the molecular weight is at least 1,000 and does not exceed 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt having the following structural formula:
lR4 R - N - R +A-wherein each of Rl, R2, R3 and R4 is a hydrocarbon radical and A
is an anion.
In accordance with one aspect of the present invention, there is provided an improved rinse solution of water containing an effective rinsing amount of a water soluble quaternary ammonium 128~i22~
salt, and a water soluble oxyalkylene polymer. Such a rinse solution is particularly effective for rinsing metal cans containing food so as to prevent staining or spotting of the cans.
The rinsing is particularly applicable to the processing of food in cans wherein the rinsing is effected after the food in the cans is subjected to treatment with steam.
The term "water soluble", as used herein, means that the component is soluble in water to an extent so as to render lb , ~ _ ~
,1.1 ~ ~....
~28522~
it effective for rinsing purposes.
l The water soluble oxyalkylene polymer which is employed i for rinsing in accordance with the present invention is either a homopolymer of oxyethylene or a copolymer of oxyethylene and oxypropylene. The copolymer may be either a random co-polymer or a block copoiymer, preferably 2 random copolymer.
The oxyalkylene polymer may be employed in the form of a glycol or in a form wherein one or both of the terminal hydrogen atoms ha~ been replaced with an organic residue which ll does not render the polymer water insoluble; in particular, i the re~idue of a hydrocarbon alcohol including a phenol or i alkyl subgtituted phenol, a hydrocarbon carboxylic acid, a hydrocarbon amine, or a hydrocarbon amide. The preferred oxy-alkylene polymers have one or both hydroxy groups replacedi with an organic residue.
The oxyalkylene polymer has a molecular weight whi.ch ~ is effective for prov~ding the desired rinsing. In general, '¦ when the oxyalkylene polymer is an oxyethylene homopolymer, the molecular weight i9 at least about ;00, and generally ¦ does not exceed about 6000. In most cases, the molecular i weight does not exceed about 4000.
In the case where the oxyalkyle~e polymer is a co-polymer of oxyethylene and oxypropylene, the molecular weight of the copolymer is at least about 1000 and generally does not exceed about 10,000. In most cases, the molecular weight does not exceed 5000.
¦ In employing a copolymer of oxyethylene and oxypropy-I lene, in general, ;he oxyethyiene cor.tent i9 from about 30 ¦¦ to about 99~ by weight, and preferably from about 40~ to about 60~ by weight.
,_ 1 . i I
! -2-.11 , , l ~28~2Zl I
The second component of the aqueous rinse solution is a water soluble quaternary ammonium salt. Such quaternary ammonium salt may be represented by the following structural formula:
~4 +
Rl - ~ - R3 wherein each of Rl, R2, R3 and R4 is preferably a hydrocarbon radical, which may be either an aromatic hydrocarbon or an aliphatic hydrocarbon, most preferably an aliphatic hydro-l carbon, with such aliphatic hydrocarbon generally being a i branched or straight chain alkyl group. Rl, R2, R3 and R
may be the qame or different radicals, and R may have from , 1 - 18 carbon atoms. In a preferred embodiment two of the i R groups have 1 - 2 carbon atoms and the remaining two R
groups have from 7 - 18 carbon atoms. A is an appropriate anion, such as a halide, methosulfate and is preferably a chloride ion. A preferred compound is dioctyl dimethyl ammon-1 ium chloride.
,¦ The rinse water contains an e'-ective rinsing amount of the quaternary a~monium salt and the oxyalkylene polymer.
In general, the combination of oxyalky ene polymer and quat-ernary ammonium salt is present in the rinse water in an amount of at least 1.0 ppm, and preferably at least 3.0 ppm. In most cases, the active ingredients are not present in an amount i in excess of 100 ppm; however, it is to be understood that greater amounts could be employed, but in most cases there is nO beneficial result from using such greater amounts.
In the rinse water, the ratio of oxyalkylene polymer to quaternary ammonium salt, by weight, is generally from 1:25 to 25:1 and pre~oraoly from 1:1 to 5:1. In rinsing motal cans, il ( ( ~
~ 128522~ 1 the composition should include the hereinabove described ratio~ ¦
in order to insure that there i9 sufficient cationic present for effective rinsing.
In a preferred embodiment, the rinsing composition may be initially formulated as an aqueous solution of the quaternary ammonium salt and the oxyalkylene polymer, and such aqueous solution may then be added to the rinse water to provide the desired concentration of active ingredients in the rinse water.
In preparing an aqueous solution of the quaternary ammonium salt and oxyalkylene polymer for later addition to rinse water, in general, the active ingredients are present in such a comp-osition in an amount of at least 1.0 wt. ~ and generally in an amount no greater than 25 wt. ~, based on 100 parts by wt. of the aqueous composition. me ratio of oxyalkylene polymer to quaternary ammonium salt in such an aqueous composition may be as hereinabove described.
The rinse composition may include other components, such as dyes, fragrances, etc., provided that such components do not adversely affect the rinse components.
The rinsing composition has a particular use for rins-ing of metal cans containing food, with the rinse solution preferably being employed, as hereinabove described, subse-quent to treating the cans containing food with steam.
In the rinsing operation, the rinse water is generally at a temperature in the order of from 50F to 150F, and the rinsing composition of the present invention is effective in rinse water applied to food cans at such temperatures. It is to be ~erstood, however, that the rinsing composition may also be employed in rinse water~ at other temperatures.
The ~n~n tion w~ ll be f urthe r d s cribed wi th re~pect .
, .
~L28522~
to the following examples; however, the scope of the invention is not to be limited thereby:
I EXAMPLE
I The following rinse composition is prepared:
Composition A
(1) Dioctyl dimethyl ammonium chloride. 2.5 ;¦ (2) Random copolymer of 50:50 oxyethy-lene and oxypropylene having one I end terminated with a butoxy group (M.W. 4000). 10.0 (3) Demineralized water. 87~5g The above composition is tested as a rinse aid in . water.
Steel panels are inserted into the water at 75F, and ~,1 rinse time is visually observed after withdrawal.
¦ Rinse I Time ¦ (Secs) ', Boonton City Water (0 ppm) 60 , ~ Composition A (25 ppm) 30 i (50 ppm) 30 (100 ppm) 20 1, Standard Hard Water (0 ppm) 60 jl + Composition A (25 ppm) 25 ~¦ (50 ppm) 25 (100 ppm) 20 ! Numerous modifications and variations of the present invention are possible in light of the above teachings and, therefore, within the scope of the present claims, the inven-tion may be practiced other~ise than as particularly described.
,
This invention relates to a rinse water additive, and more particularly to the rinsing of materials. Most particularly, this invention relates to the rinsing of metal food cans.
The appearance of cans containing food is of utmost importance in that the consuming public will ordinarily reject a stained or spotted can. In producing food in cans, in many processes, the food in the cans is subjected to a steaming process, and subsequent to such steaming process, it is necessary to rinse the cans with water so as to provide a food can which is ~ree of staining or spotting. As hereinabove indicated, the ability to effectively rinse such cans so as to prevent stained or spotted food cans is an important step in the overall process, and as a result, there is a need for improved rinsing compositions so as to prevent such staining or spotting of cans.
The invention provides a process for rinsing cans, containing food, comprising:
rinsing the cans with water containing an effective rinsing amount of both a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer, selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6, 000, and copolymers of oxyethylene and oxypropylene having a molecular weight of at least 1,000 and not in excess of 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt being from 1: 25 to 25 :1, and said quaternary ammonium salt having the following structural formula:
~..
12B52Z~
~R4 Rl- N - R +~
wherein Rl, R2, R3, and R4 may be the same or different hydrocarbon radical and are selected from the group comprising aromatic or aliphatic hydrocarbon, with such aliphatic hydrocarbon generally being a branched or straight chain alkyl group and A is an anion.
The invention further provides a process for rinsing 10 cans containing food after steaming of the cans, comprising:
rinsing the cans with water containing an effective rinsing arnount of a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6,000, and copolymers of oxyethylene and oxypropylene wherein the oxyethylene content is from 30% to 99% by weight, and the molecular weight is at least 1,000 and does not exceed 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt having the following structural formula:
lR4 R - N - R +A-wherein each of Rl, R2, R3 and R4 is a hydrocarbon radical and A
is an anion.
In accordance with one aspect of the present invention, there is provided an improved rinse solution of water containing an effective rinsing amount of a water soluble quaternary ammonium 128~i22~
salt, and a water soluble oxyalkylene polymer. Such a rinse solution is particularly effective for rinsing metal cans containing food so as to prevent staining or spotting of the cans.
The rinsing is particularly applicable to the processing of food in cans wherein the rinsing is effected after the food in the cans is subjected to treatment with steam.
The term "water soluble", as used herein, means that the component is soluble in water to an extent so as to render lb , ~ _ ~
,1.1 ~ ~....
~28522~
it effective for rinsing purposes.
l The water soluble oxyalkylene polymer which is employed i for rinsing in accordance with the present invention is either a homopolymer of oxyethylene or a copolymer of oxyethylene and oxypropylene. The copolymer may be either a random co-polymer or a block copoiymer, preferably 2 random copolymer.
The oxyalkylene polymer may be employed in the form of a glycol or in a form wherein one or both of the terminal hydrogen atoms ha~ been replaced with an organic residue which ll does not render the polymer water insoluble; in particular, i the re~idue of a hydrocarbon alcohol including a phenol or i alkyl subgtituted phenol, a hydrocarbon carboxylic acid, a hydrocarbon amine, or a hydrocarbon amide. The preferred oxy-alkylene polymers have one or both hydroxy groups replacedi with an organic residue.
The oxyalkylene polymer has a molecular weight whi.ch ~ is effective for prov~ding the desired rinsing. In general, '¦ when the oxyalkylene polymer is an oxyethylene homopolymer, the molecular weight i9 at least about ;00, and generally ¦ does not exceed about 6000. In most cases, the molecular i weight does not exceed about 4000.
In the case where the oxyalkyle~e polymer is a co-polymer of oxyethylene and oxypropylene, the molecular weight of the copolymer is at least about 1000 and generally does not exceed about 10,000. In most cases, the molecular weight does not exceed 5000.
¦ In employing a copolymer of oxyethylene and oxypropy-I lene, in general, ;he oxyethyiene cor.tent i9 from about 30 ¦¦ to about 99~ by weight, and preferably from about 40~ to about 60~ by weight.
,_ 1 . i I
! -2-.11 , , l ~28~2Zl I
The second component of the aqueous rinse solution is a water soluble quaternary ammonium salt. Such quaternary ammonium salt may be represented by the following structural formula:
~4 +
Rl - ~ - R3 wherein each of Rl, R2, R3 and R4 is preferably a hydrocarbon radical, which may be either an aromatic hydrocarbon or an aliphatic hydrocarbon, most preferably an aliphatic hydro-l carbon, with such aliphatic hydrocarbon generally being a i branched or straight chain alkyl group. Rl, R2, R3 and R
may be the qame or different radicals, and R may have from , 1 - 18 carbon atoms. In a preferred embodiment two of the i R groups have 1 - 2 carbon atoms and the remaining two R
groups have from 7 - 18 carbon atoms. A is an appropriate anion, such as a halide, methosulfate and is preferably a chloride ion. A preferred compound is dioctyl dimethyl ammon-1 ium chloride.
,¦ The rinse water contains an e'-ective rinsing amount of the quaternary a~monium salt and the oxyalkylene polymer.
In general, the combination of oxyalky ene polymer and quat-ernary ammonium salt is present in the rinse water in an amount of at least 1.0 ppm, and preferably at least 3.0 ppm. In most cases, the active ingredients are not present in an amount i in excess of 100 ppm; however, it is to be understood that greater amounts could be employed, but in most cases there is nO beneficial result from using such greater amounts.
In the rinse water, the ratio of oxyalkylene polymer to quaternary ammonium salt, by weight, is generally from 1:25 to 25:1 and pre~oraoly from 1:1 to 5:1. In rinsing motal cans, il ( ( ~
~ 128522~ 1 the composition should include the hereinabove described ratio~ ¦
in order to insure that there i9 sufficient cationic present for effective rinsing.
In a preferred embodiment, the rinsing composition may be initially formulated as an aqueous solution of the quaternary ammonium salt and the oxyalkylene polymer, and such aqueous solution may then be added to the rinse water to provide the desired concentration of active ingredients in the rinse water.
In preparing an aqueous solution of the quaternary ammonium salt and oxyalkylene polymer for later addition to rinse water, in general, the active ingredients are present in such a comp-osition in an amount of at least 1.0 wt. ~ and generally in an amount no greater than 25 wt. ~, based on 100 parts by wt. of the aqueous composition. me ratio of oxyalkylene polymer to quaternary ammonium salt in such an aqueous composition may be as hereinabove described.
The rinse composition may include other components, such as dyes, fragrances, etc., provided that such components do not adversely affect the rinse components.
The rinsing composition has a particular use for rins-ing of metal cans containing food, with the rinse solution preferably being employed, as hereinabove described, subse-quent to treating the cans containing food with steam.
In the rinsing operation, the rinse water is generally at a temperature in the order of from 50F to 150F, and the rinsing composition of the present invention is effective in rinse water applied to food cans at such temperatures. It is to be ~erstood, however, that the rinsing composition may also be employed in rinse water~ at other temperatures.
The ~n~n tion w~ ll be f urthe r d s cribed wi th re~pect .
, .
~L28522~
to the following examples; however, the scope of the invention is not to be limited thereby:
I EXAMPLE
I The following rinse composition is prepared:
Composition A
(1) Dioctyl dimethyl ammonium chloride. 2.5 ;¦ (2) Random copolymer of 50:50 oxyethy-lene and oxypropylene having one I end terminated with a butoxy group (M.W. 4000). 10.0 (3) Demineralized water. 87~5g The above composition is tested as a rinse aid in . water.
Steel panels are inserted into the water at 75F, and ~,1 rinse time is visually observed after withdrawal.
¦ Rinse I Time ¦ (Secs) ', Boonton City Water (0 ppm) 60 , ~ Composition A (25 ppm) 30 i (50 ppm) 30 (100 ppm) 20 1, Standard Hard Water (0 ppm) 60 jl + Composition A (25 ppm) 25 ~¦ (50 ppm) 25 (100 ppm) 20 ! Numerous modifications and variations of the present invention are possible in light of the above teachings and, therefore, within the scope of the present claims, the inven-tion may be practiced other~ise than as particularly described.
,
Claims (22)
1. A process for rinsing cans, containing food, comprising:
rinsing the cans with water containing an effective rinsing amount of both a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer, selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6,000, and copolymers of oxyethylene and oxypropylene having a molecular weight of at least 1,000 and not in excess of 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt being from 1:25 to 25:1, and said quaternary ammonium salt having the following structural formula:
wherein R1, R2, R3 and R4 may be the same or different hydrocarbon radical and are selected from the group comprising aromatic or aliphatic hydrocarbon and A is an anion.
rinsing the cans with water containing an effective rinsing amount of both a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer, selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6,000, and copolymers of oxyethylene and oxypropylene having a molecular weight of at least 1,000 and not in excess of 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt being from 1:25 to 25:1, and said quaternary ammonium salt having the following structural formula:
wherein R1, R2, R3 and R4 may be the same or different hydrocarbon radical and are selected from the group comprising aromatic or aliphatic hydrocarbon and A is an anion.
2. A process according to Claim 1 wherein the aliphatic hydrocarbon has a branched or straight chain alkyl group.
3. A process according to Claim 1 wherein the groups represented by R1 - R4 have from 1 - 18 carbon atoms.
4. The process of Claim 1 wherein the oxyalkylene polymer is a copolymer of oxyethylene and oxypropylene and has at least one end group terminated with an organic residue.
5. The process of Claim 4 wherein the polymer is a random copolymer.
6. The process of Claim 4 wherein the weight ratio of oxyalkylene polymer to quaternary ammonium salt is from 1:1 to 5:1.
7. The process of Claim 6 wherein the molecular weight of the polymer is from 1,000 to 10,000.
8. The process of Claim 6 wherein the combination of oxyalkylene polymer and quaternary ammonium salt is present in the rinse water in an amount of at least 1.0 ppm.
9. The process of Claim 4 wherein the polymer is a block copolymer.
10. A process for rinsing cans containing food after steaming of the cans, comprising:
rinsing the cans with water containing an effective rinsing amount of both a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer, selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6,000, and copolymers of oxyethylene and oxypropylene having a molecular weight of at least 1,000 and not in excess of 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt being from 1:25 to 25:1, and said quaternary ammonium salt having the following structural formula:
wherein R1, R2, R3, and R4 may be the same or different hydrocarbon radical and are selected from the group comprising aromatic or aliphatic hydrocarbon and A is an anion.
rinsing the cans with water containing an effective rinsing amount of both a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer, selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6,000, and copolymers of oxyethylene and oxypropylene having a molecular weight of at least 1,000 and not in excess of 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt being from 1:25 to 25:1, and said quaternary ammonium salt having the following structural formula:
wherein R1, R2, R3, and R4 may be the same or different hydrocarbon radical and are selected from the group comprising aromatic or aliphatic hydrocarbon and A is an anion.
11. The process of Claim 10 wherein the combination of oxyalkylene polymer and quaternary ammonium salt is present in the rinse water in an amount of at least 1.0 ppm.
12. The process of Claim 11 wherein the oxyalkylene polymer is a copolymer of oxyethylene and oxypropylene and has at least one end group is terminated with an organic residue.
13. The process of Claim 12 wherein the weight ratio of oxyalkylene polymer to quaternary ammonium salt is from 1:1 to 5:1.
14. A composition for rinsing metal cans containing food, comprising:
an aqueous solution containing an effective rinsing amount of both a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer, selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6,000,and copolymers of oxyethylene and oxypropylene having a molecular weight of at least 1,000 and not in excess of 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt being from 1:25 to 25:1, and said quaternary ammonium salt having the following structural formula:
wherein R1, R2, R3 and R4 may be the same or different hydrocarbon radical and are selected from the group comprising aromatic or aliphatic hydrocarbon and A is an anion.
an aqueous solution containing an effective rinsing amount of both a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer, selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6,000,and copolymers of oxyethylene and oxypropylene having a molecular weight of at least 1,000 and not in excess of 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt being from 1:25 to 25:1, and said quaternary ammonium salt having the following structural formula:
wherein R1, R2, R3 and R4 may be the same or different hydrocarbon radical and are selected from the group comprising aromatic or aliphatic hydrocarbon and A is an anion.
15. The composition of Claim 14 wherein the weight ratio of oxyalkylene polymer to quaternary ammonium salt is from 1:1 to 5:1.
16. A process for rinsing cans containing food after steaming of the cans, comprising:
rinsing the cans with water containing an effective rinsing amount of a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6,000, and copolymers of oxyethylene and oxypropylene wherein the oxyethylene content is from 30% to 99%
by weight, and the molecular weight is at least 1,000 and does not exceed 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt being from 1:25 to 25:1, and said quaternary ammonium salt having the following structural formula:
wherein each of R1, R2, R3 and R4 is a hydrocarbon radical and is selected from the group comprising aromatic or aliphatic hydrocarbon and A is an anion.
rinsing the cans with water containing an effective rinsing amount of a water soluble quaternary ammonium salt and a water soluble oxyalkylene polymer selected from the group consisting of oxyethylenehomopolymers having a molecular weight of at least 500 and not in excess of 6,000, and copolymers of oxyethylene and oxypropylene wherein the oxyethylene content is from 30% to 99%
by weight, and the molecular weight is at least 1,000 and does not exceed 10,000, with the weight ratio of oxyalkylene polymer to quaternary ammonium salt being from 1:25 to 25:1, and said quaternary ammonium salt having the following structural formula:
wherein each of R1, R2, R3 and R4 is a hydrocarbon radical and is selected from the group comprising aromatic or aliphatic hydrocarbon and A is an anion.
17. The process of Claim 16 wherein the oxyethylene content of the copolymer is from 40% to 60% by weight.
18. The process of Claim 17 wherein two of the groups represented by R1 - R4 have 1 - 2 carbon atoms, and the remaining two groups represented by R1 - R4 have from 7 - 18 carbon atoms.
19. The process of Claim 18 wherein the weight ratio of oxyalkylene polymer to quaternary ammonium salt is from 1:1 to 5:1.
20. The process according to Claim 10 wherein the aliphatic hydrocarbon has a branched or straight chain alkyl group.
21. The composition according to Claim 14 wherein the aliphatic hydrocarbon has a branched or straight chain alkyl group.
22. The process according to Claim 16 wherein the aliphatic hydrocarbon has a branched or straight chain alkyl group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000503006A CA1285221C (en) | 1985-03-05 | 1986-02-28 | Rinse water additive |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/708,572 US4647314A (en) | 1985-03-05 | 1985-03-05 | Rinse water additive |
| CA000503006A CA1285221C (en) | 1985-03-05 | 1986-02-28 | Rinse water additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1285221C true CA1285221C (en) | 1991-06-25 |
Family
ID=25670921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000503006A Expired - Lifetime CA1285221C (en) | 1985-03-05 | 1986-02-28 | Rinse water additive |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1285221C (en) |
-
1986
- 1986-02-28 CA CA000503006A patent/CA1285221C/en not_active Expired - Lifetime
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| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |