CA2003356C - Process for producing a dry granular product - Google Patents
Process for producing a dry granular product Download PDFInfo
- Publication number
- CA2003356C CA2003356C CA 2003356 CA2003356A CA2003356C CA 2003356 C CA2003356 C CA 2003356C CA 2003356 CA2003356 CA 2003356 CA 2003356 A CA2003356 A CA 2003356A CA 2003356 C CA2003356 C CA 2003356C
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- CA
- Canada
- Prior art keywords
- polymer
- polymer emulsion
- acetic acid
- dry
- emulsion
- 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 - Fee Related
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Abstract
Dry sodium carbonate is reacted with acetic acid and a polymer emulsion according to the following equation:
Na2CO3 + 2HAc * [5H2O ~ Polymer Emulsion]
2[NaAc ~ 3H2O ~ Polymer Emulsion Complex] + CO2 wherein the polymer is inert with respect to sodium carbonate and acetic acid so as to maintain the integrity of the polymer during the reaction, which results in a dry granular product in the form of an aqueous polymer complex of sodium acetate trihydrate.
Na2CO3 + 2HAc * [5H2O ~ Polymer Emulsion]
2[NaAc ~ 3H2O ~ Polymer Emulsion Complex] + CO2 wherein the polymer is inert with respect to sodium carbonate and acetic acid so as to maintain the integrity of the polymer during the reaction, which results in a dry granular product in the form of an aqueous polymer complex of sodium acetate trihydrate.
Description
~~~J:~ ~~~b hFtOCBS.S FOIEt lPR~IDI1CING A i3R'~" CILANtyI~AR ~R.UI~tlCT
Baeka7eound of the Invention The present invention relates to praduc°.in~ sodium acetate polymer emulsion complexes and more particularly to producing such complexes in which the integx°ity of the polymer emulsion is maintained during the process so that a dry granular product is obtained, yet the emulsion has retained its original waErr relationship.
As is well known, polymer emul$ions have many useful farms.
Ganventionally, they are produced in liquid form and are applied to a particular use in liquid form that are diluted to provide the desired concentcatlon far the particular . , applioatian. The storing, transporting and handling of Iiduid emulsions is obviously more complicated and difficult than were the emulsion in a solid form. Also, liquid emulsions are susceptible to freeze/thaw instability.
Sodium acetate is known for use in controlling acidity and as a dilutant, i.e. in dyestuff blends. Sodium acetate has also been used by the present inventor in a prior art process with dodecyl benzene sulfonic acid to produoe sodium lodecyl benzene sulforsate as' a dry detergent in granular form, but such prior art praCess involved a reaction of the sodium acetate and the dddecyl benzene sulfonic said such that the dodeayl benzene sulfonie acid ryas changed chemically to sodium dodecyl benzene sulfonate and the process also involved a highly effervescent re~etiori that was difficult to control, Sumaaar,~ of the Invention In contrast to the above~dESCribed prior act, it has been discovered by the present invention that a dry granular complex of sodium acetate trihydrate can be produced by reacting sodium carbonate and acetic .acid in the presence of a polymer emulsion where the polymer is inert with respect to the sodium carbonate and acetic said such that the product retains the water of hydration sauraed from the emulsion while maintaining the integrity of the polymer in the resultant product.
It is believed that the water in the emulsion is appropriated by the reaction into the resultant produot without affecting the water/polymer relationship.
According to the present invention, the process involves prawblendiri~ of the ingredients of the sodium acetate trihyrlrate molecule with polymer emulsions, with the radium acetate using the water from the emulsion to cau$e the relation to take pleas and resulting in a dry product which in fact contains the palymerie - ' ~~~9;3 ~~
pa°oduat whose water based properties remain intact. This new praaess allows complex polymeric products, such as silicone emulsions, to be compounded into granular products previously incompatible with the aqueous polymeric emulsions due to their water content. rn addition to silicone emulsions, this process has application to acrylic emulsions, surfactant solutions and polyvinylpyrrolidone solutions.
Ueseri~tion of the preferred J~mbodiment ' ,~ According to the preferred embodiment of the present invention, dry sodium carbonate is reacted with acetic acid and a polymer emulsion according to the following equation:
Na2COg * 2HAe + C51~20 ~ ~'olymer Emulsion? ~
2ENaAe ~ 3H20 ~ Polymer Emulsion Complex? ~ ,C02 The polymer is inert with respect to the sodium carbonate and acetic acid so as to maintain the integrity of the polymer during ttte reaction. Preferably, the process is performed at a mole ratio of acetic acid to the water content of the polymer emulsion that is two moles .of acetic acid to five moles of water. Also, preferably, the polymer emulsiat: is a high solids, non-erosslinklng, polymer emulsion. In the preferred embodiment, the polymer emulsion is selected from the group of silicone emulsions, acrylic emulsions, surfactant solutions, and polyvinylpyrrolidone solutions.
The process is applicable to materials, such as sodium acetate, having water of hydration and would have no appliea,tion to materials that do not have water of hydration. ' The reaction is sufgieiently exothermic to create heat to dry the product.
The process of the present invention has been practiced according to the following examples:
~xam,~i~ f Using a silicone defoamer emulsion by Union Carbide known as Defoamer S,A,G~30, 26.4 grams of dry sodium oarbanat~ was reaoted~wlth 30.B grams of aoetia .
acid in the presence of a preblended mixture of 13.0 grams of water and 30.0 grams of 1)efoamer SAQ-30. 'fhe reaction mixture was stirred, for appraxlmately 1.0 hour to yield X9.2 grams of a product representing Defoamer SAG~30 In a more dilute ,.. ,. , but completely ,dry form.
Baeka7eound of the Invention The present invention relates to praduc°.in~ sodium acetate polymer emulsion complexes and more particularly to producing such complexes in which the integx°ity of the polymer emulsion is maintained during the process so that a dry granular product is obtained, yet the emulsion has retained its original waErr relationship.
As is well known, polymer emul$ions have many useful farms.
Ganventionally, they are produced in liquid form and are applied to a particular use in liquid form that are diluted to provide the desired concentcatlon far the particular . , applioatian. The storing, transporting and handling of Iiduid emulsions is obviously more complicated and difficult than were the emulsion in a solid form. Also, liquid emulsions are susceptible to freeze/thaw instability.
Sodium acetate is known for use in controlling acidity and as a dilutant, i.e. in dyestuff blends. Sodium acetate has also been used by the present inventor in a prior art process with dodecyl benzene sulfonic acid to produoe sodium lodecyl benzene sulforsate as' a dry detergent in granular form, but such prior art praCess involved a reaction of the sodium acetate and the dddecyl benzene sulfonic said such that the dodeayl benzene sulfonie acid ryas changed chemically to sodium dodecyl benzene sulfonate and the process also involved a highly effervescent re~etiori that was difficult to control, Sumaaar,~ of the Invention In contrast to the above~dESCribed prior act, it has been discovered by the present invention that a dry granular complex of sodium acetate trihydrate can be produced by reacting sodium carbonate and acetic .acid in the presence of a polymer emulsion where the polymer is inert with respect to the sodium carbonate and acetic said such that the product retains the water of hydration sauraed from the emulsion while maintaining the integrity of the polymer in the resultant product.
It is believed that the water in the emulsion is appropriated by the reaction into the resultant produot without affecting the water/polymer relationship.
According to the present invention, the process involves prawblendiri~ of the ingredients of the sodium acetate trihyrlrate molecule with polymer emulsions, with the radium acetate using the water from the emulsion to cau$e the relation to take pleas and resulting in a dry product which in fact contains the palymerie - ' ~~~9;3 ~~
pa°oduat whose water based properties remain intact. This new praaess allows complex polymeric products, such as silicone emulsions, to be compounded into granular products previously incompatible with the aqueous polymeric emulsions due to their water content. rn addition to silicone emulsions, this process has application to acrylic emulsions, surfactant solutions and polyvinylpyrrolidone solutions.
Ueseri~tion of the preferred J~mbodiment ' ,~ According to the preferred embodiment of the present invention, dry sodium carbonate is reacted with acetic acid and a polymer emulsion according to the following equation:
Na2COg * 2HAe + C51~20 ~ ~'olymer Emulsion? ~
2ENaAe ~ 3H20 ~ Polymer Emulsion Complex? ~ ,C02 The polymer is inert with respect to the sodium carbonate and acetic acid so as to maintain the integrity of the polymer during ttte reaction. Preferably, the process is performed at a mole ratio of acetic acid to the water content of the polymer emulsion that is two moles .of acetic acid to five moles of water. Also, preferably, the polymer emulsiat: is a high solids, non-erosslinklng, polymer emulsion. In the preferred embodiment, the polymer emulsion is selected from the group of silicone emulsions, acrylic emulsions, surfactant solutions, and polyvinylpyrrolidone solutions.
The process is applicable to materials, such as sodium acetate, having water of hydration and would have no appliea,tion to materials that do not have water of hydration. ' The reaction is sufgieiently exothermic to create heat to dry the product.
The process of the present invention has been practiced according to the following examples:
~xam,~i~ f Using a silicone defoamer emulsion by Union Carbide known as Defoamer S,A,G~30, 26.4 grams of dry sodium oarbanat~ was reaoted~wlth 30.B grams of aoetia .
acid in the presence of a preblended mixture of 13.0 grams of water and 30.0 grams of 1)efoamer SAQ-30. 'fhe reaction mixture was stirred, for appraxlmately 1.0 hour to yield X9.2 grams of a product representing Defoamer SAG~30 In a more dilute ,.. ,. , but completely ,dry form.
- 2 ..
_. ~"~~i~~
E~campio II
Using a sili4one emulsion by Uniort Carbide known as I~E-458 H~, 2~.4 grams of dry sodium carbonate and 30.5 grams of acetic acid were reacted in the presence of a preblended mi~;ture of 3b.0 grams of LF-4a8 HS and 13.0 grams of water°. The reaction mixture was stirred for approximately 1.0 hour to yield 80.0 grams of a dry powdered form of LET458 H~ which was more dilute in concentration . than the original form of the product LE-458 HS.
E~campl~ ~
Using a 3096 solution of polyvinylpyz~rolidone, 28.4 grams of dry sodium carbonate was reacted with 30.~ grams of acetic acid in the presence of 30.0 grams of a 3096 polyvinylpyrrolidone solution. This reaction mixture was stirred for approximately L0 hour to yield ?8.0 grams of a dry, more dilute polyvinyipycrolidone.
It wiil therefore be readily understood by those persons s~iiied in the act that the present . invention is susceptiblE; of a broad utiiity and appiication. Many embodiments and adaptations of the present Invention other than those hecein described, as wall as many variations, modifieatioras and equivaient arrangements wili be apparent from or reasonably suggested by the present invention and the foregoing ;
deseriptian thereof, without departing from the substance or scope of the present invention. Accordingly, while the present invention has beam described ~hecein in detail in relation to its preferred embodiment, it is to be understood that this disclosure is only illustrative and exemplary of the present invention and is made merely for purposes of providing a full and enabling disclosure of the invention.
The foregoing disclosure is not intended or to be construed t~ limit the pr~.sent invention or otherwise to exclude any such other embodiments, adaptations, variations, modifications rind equivalent arrangements, the present invention being limited only ~by the claims appended hereto and the equivalents thereof.
When used in the foilowing claims, the term polymer. emulsion is intended to have a broad meaning encompassing not only polymer emulsions in a strict sense, but also materials, such as surfactant solutions and polyvinylpyrrolidane solutions, that have simiiar oharaeteristics in terms of the application of the process of the present invention.
,, I
t' ~ . .r
_. ~"~~i~~
E~campio II
Using a sili4one emulsion by Uniort Carbide known as I~E-458 H~, 2~.4 grams of dry sodium carbonate and 30.5 grams of acetic acid were reacted in the presence of a preblended mi~;ture of 3b.0 grams of LF-4a8 HS and 13.0 grams of water°. The reaction mixture was stirred for approximately 1.0 hour to yield 80.0 grams of a dry powdered form of LET458 H~ which was more dilute in concentration . than the original form of the product LE-458 HS.
E~campl~ ~
Using a 3096 solution of polyvinylpyz~rolidone, 28.4 grams of dry sodium carbonate was reacted with 30.~ grams of acetic acid in the presence of 30.0 grams of a 3096 polyvinylpyrrolidone solution. This reaction mixture was stirred for approximately L0 hour to yield ?8.0 grams of a dry, more dilute polyvinyipycrolidone.
It wiil therefore be readily understood by those persons s~iiied in the act that the present . invention is susceptiblE; of a broad utiiity and appiication. Many embodiments and adaptations of the present Invention other than those hecein described, as wall as many variations, modifieatioras and equivaient arrangements wili be apparent from or reasonably suggested by the present invention and the foregoing ;
deseriptian thereof, without departing from the substance or scope of the present invention. Accordingly, while the present invention has beam described ~hecein in detail in relation to its preferred embodiment, it is to be understood that this disclosure is only illustrative and exemplary of the present invention and is made merely for purposes of providing a full and enabling disclosure of the invention.
The foregoing disclosure is not intended or to be construed t~ limit the pr~.sent invention or otherwise to exclude any such other embodiments, adaptations, variations, modifications rind equivalent arrangements, the present invention being limited only ~by the claims appended hereto and the equivalents thereof.
When used in the foilowing claims, the term polymer. emulsion is intended to have a broad meaning encompassing not only polymer emulsions in a strict sense, but also materials, such as surfactant solutions and polyvinylpyrrolidane solutions, that have simiiar oharaeteristics in terms of the application of the process of the present invention.
,, I
t' ~ . .r
Claims (4)
1. A process for producing a dry granular product in the foam of an aqueous polymeric complex of sodium acetate, trihydrate, comprising reacting dry sodium carbonate, acetic acid and a polymer emulsion selected from the group of silicone emulsions, acrylic emulsions, surfactant solutions, and polyvinylpyrrozidone solutions wherein the polymer is inert with respect to sodium carbonate and acetic acid so as to maintain the integrity of said polymer during said reaction.
2. A process according to claim 1 and characterized further in that the mole ratio of acetic acid to the water content of the polymer emulsion is two moles of acetic acid to five moles of water.
3. A process according to claim 1 and characterized further in that the reaction is in accordance with the following equations:
Na2CO3 + 2HAc + [5H2O ~ Polymer emulsion]~
2[NaAc ~ 3H2O ~ Polymer Emulsion Complex] + CO2
Na2CO3 + 2HAc + [5H2O ~ Polymer emulsion]~
2[NaAc ~ 3H2O ~ Polymer Emulsion Complex] + CO2
4. A process according to claim 1 and characterized further in that said polymer emulsion is a high solids, non-crosslinking, polymer emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2003356 CA2003356C (en) | 1989-11-20 | 1989-11-20 | Process for producing a dry granular product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2003356 CA2003356C (en) | 1989-11-20 | 1989-11-20 | Process for producing a dry granular product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2003356A1 CA2003356A1 (en) | 1991-05-20 |
| CA2003356C true CA2003356C (en) | 2000-06-27 |
Family
ID=4143588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2003356 Expired - Fee Related CA2003356C (en) | 1989-11-20 | 1989-11-20 | Process for producing a dry granular product |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2003356C (en) |
-
1989
- 1989-11-20 CA CA 2003356 patent/CA2003356C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2003356A1 (en) | 1991-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |