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US 8,801,909 B2Granted
Polymetal hydroxychloride processes and compositions: enhanced efficacy antiperspirant salt compositions
AssigneeNextchem S.P.A.
InventorsWilliam E. Pratt, Joseph J. Stevens, Peter G. Symons
Life of this patent
Estimating the term…
Abstract
The invention describes processes for the production of basic aluminum compounds, including aluminum chlorohydrate, basic zirconium compounds, and basic aluminum zirconium compounds. The process produces products of a wide range of basicities. The products formed by the present invention are comprised of low molecular weight species characteristic of enhanced efficacy antiperspirant salt compositions. The products of this process are suitable for use as water purification agents, as binders in catalyst applications, and in antiperspirant applications. In addition, the invention is directed to the products made by the disclosed process.
Claims83
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is an anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the initial hydroxide content of Compound I, provided that
- i. enriching and depleting streams both comprise a Compound of formula I;
- and
- ii. a combination of Compounds I having different M's are mixed prior to, during, or after the electrodialysis process, such that a mixed metal product is formed.
7 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is an anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the initial hydroxide content of Compound I, further comprising the step of adding an amino acid, an organic acid or a polyol to the depleting or receiving stream during the electrodialysis process provided that
- i. enriching and depleting streams both comprise a Compound of formula I;
- and
- ii. a combination of Compounds I having different M's are mixed prior to, during, or after the electrodialysis process, such that a mixed metal product is formed.
7 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is an anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the initial hydroxide content of Compound I, further comprising organic solvents incorporated into the product provided that
- i. enriching and depleting streams both comprise a Compound of formula I;
- and
- ii. a combination of Compounds I having different M's are mixed prior to, during, or after the electrodialysis process, such that a mixed metal product is formed.
7 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is an anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the hydroxide content of the initial Compound I to provide a product, provided that
- i. enriching and depleting streams both comprise a Compound of formula (I), wherein the product is an enhanced efficacy material.
5 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is an anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the hydroxide content of the initial Compound I to provide a product, further comprising the step of adding an amino acid, an organic acid or a polyol to the depleting or receiving stream during the electrodialysis process provided that
- i. enriching and depleting streams both comprise a Compound of formula (I), wherein the product is an enhanced efficacy material.
5 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is an anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the hydroxide content of the initial Compound I to provide a product, further comprising organic solvents incorporated into the product provided that
- i. enriching and depleting streams both comprise a Compound of formula (I), wherein the product is an enhanced efficacy material.
5 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal selected from Al, Ti, Zr or Fe that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is any monovalent anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the hydroxide content of the initial Compound I, provided that
- i. enriching and depleting streams both comprise a Compound of formula (I);
- ii. a combination of Compounds I having different M's are mixed prior to, during, or after the electrodialysis process, such that a mixed metal product is formed;
- and
- iii. wherein the pH of the enriching stream is less than a pH of 2.
8 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal selected from Al, Ti, Zr or Fe that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is any monovalent anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the hydroxide content of the initial Compound I, further comprising the step of adding an amino acid, an organic acid or a polyol to the depleting or receiving stream during the electrodialysis provided that
- i. enriching and depleting streams both comprise a Compound of formula (I);
- ii. a combination of Compounds I having different M's are mixed prior to, during, or after the electrodialysis process, such that a mixed metal product is formed;
- and
- iii. wherein the pH of the enriching stream is less than a pH of 2.
8 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal selected from Al, Ti, Zr or Fe that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is any monovalent anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the hydroxide content of the initial Compound I, wherein the organic solvent contains at least two carbons and at least one hydroxyl group selected from the group consisting of ethanol, propanol, iso-propanol, and butanol provided that
- i. enriching and depleting streams both comprise a Compound of formula (I);
- ii. a combination of Compounds I having different M's are mixed prior to, during, or after the electrodialysis process, such that a mixed metal product is formed;
- and
- iii. wherein the pH of the enriching stream is less than a pH of 2.
8 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is an anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the hydroxide content of the initial Compound I, provided that
- i. enriching and depleting streams both comprise a Compound of formula (I);
- ii. wherein the pH of the enriching stream is less than a pH of 2, wherein the product is an enhanced efficacy material.
6 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is an anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the hydroxide content of the initial Compound I, further comprising the step of adding an amino acid, an organic acid or a polyol to the depleting or receiving stream during the electrodialysis process provided that
- i. enriching and depleting streams both comprise a Compound of formula (I);
- ii. wherein the pH of the enriching stream is less than a pH of 2, wherein the product is an enhanced efficacy material.
6 more elements
A method to increase the hydroxide content of compounds comprising the formula (I):
- Mm(OH)nXam−n (Compound I)
- wherein M is a metal that undergoes the reaction:
- wherein “a” is the valence of the metal ion;
- X is an anion;
- 0<n≦am;
- m≧1;
- comprising the step of subjecting a solution of Compound I to electrodialysis conditions to generate HX, such that the hydroxide content of Compound I is increased relative to the hydroxide content of the initial Compound I, further comprising organic solvents incorporated into the product provided that
- i. enriching and depleting streams both comprise a Compound of formula (I);
- ii. wherein the pH of the enriching stream is less than a pH of 2, wherein the product is an enhanced efficacy material.
6 more elements
Dependencies are inferred from the claim text.