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US 2003/0077337 A1Published application
Synthetic layered silicate exhibiting tolerance to electrolytes in applications thereof
OwnerDavid B. Shaw, Terence Timperley +2inventors
InventorsDavid B. Shaw, Terence Timperley, Mohammed Jameel Barlas, Jane Doyle
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Abstract
A synthetic layered silicate material may be produced which exhibits tolerance to high levels of electrolytes and surfactants as measured by viscosity, hydration rate and clarity. The synthetic layered silicate material may produce similar or improved rheological properties when compared to natural hectorite at comparable or lower addition rates in select aqueous systems.
Claims54
A synthetic layered silicate comprising the formula:
- [Si8(MgaLib)O20(OH)4−yFy]z−zM+
- wherein a=4.75 to 5.45;
- b=0.25 to 1.25;
- y=0 to <4;
- z=12-2a-b;
- and M is Na+ or Li+;
- and
- wherein the SiO2/MgO is about 2.20 to about 2.40 and the lithium content is about 0.40% to about 0.80%;
- and,
- wherein the synthetic layered silicate, when dispersed in an aqueous medium at about 2% by weight, wherein the aqueous medium contains from about 1 milliequivalent/gram synthetic layered silicate to about 12 milliequivalents/gram synthetic layered silicate of an electrolyte, increases the viscosity of the aqueous medium to greater than about 200,000 centipoise.
7 more elements
A method of making a synthetic layered silicate comprising:
- preparing a magnesium metal compound solution, the magnesium metal compound solution comprising a magnesium cation;
- preparing a carbonate compound solution, the carbonate compound solution comprising a carbonate anion;
- mixing the magnesium metal compound solution and the carbonate compound solution;
- adding a monovalent metal compound, and a silicate solution, to produce a synthetic layered silicate;
- wherein the synthetic layered silicate, when dispersed in an aqueous medium at about 2% by weight, wherein the aqueous medium contains from about 1 milliequivalent/gram synthetic layered silicate to about 12 milliequivalents/gram synthetic layered silicate of an electrolyte, increases the viscosity of the aqueous medium to greater than about 200,000 centipoise.
2 more elements
A synthetic layered silicate prepared by the process comprising:
- preparing a magnesium metal compound solution, the magnesium metal compound solution comprising a magnesium cation;
- preparing a carbonate compound solution, the carbonate compound solution comprising a carbonate anion;
- mixing the magnesium metal compound solution and the carbonate compound solution;
- adding a monovalent metal compound, and a silicate solution, to produce a synthetic layered silicate;
- wherein the synthetic layered silicate, when dispersed in an aqueous medium at about 2% by weight, wherein the aqueous medium contains from about 1 milliequivalent/gram synthetic layered silicate to about 12 milliequivalents/gram synthetic layered silicate of an electrolyte, increases the viscosity of the aqueous medium to greater than about 200,000 centipoise.
2 more elements
A cleaner comprising:
- water;
- a synthetic layered silicate made by the process comprising:
- preparing a magnesium metal compound solution, the magnesium metal compound solution comprising a magnesium cation;
- preparing a carbonate compound solution, the carbonate compound solution comprising a carbonate anion;
- mixing the magnesium metal compound solution and the carbonate compound solution;
- adding a monovalent metal compound, and a silicate solution, to produce a synthetic layered silicate;
- wherein the synthetic layered silicate, when dispersed in an aqueous medium at about 2% by weight, wherein the aqueous medium contains from about 1 milliequivalent/gram synthetic layered silicate to about 12 milliequivalents/gram synthetic layered silicate of an electrolyte, increases the viscosity of the aqueous medium to greater than about 200,000 centipoise;
- and,
- a cleaner composition.
6 more elements
An oven cleaner comprising:
- water;
- a synthetic layered silicate made by the process comprising:
- preparing a magnesium metal compound solution, the magnesium metal compound solution comprising a magnesium cation;
- preparing a carbonate compound solution, the carbonate compound solution comprising a carbonate anion;
- mixing the magnesium metal compound solution and the carbonate compound solution;
- adding a monovalent metal compound, and a silicate solution, to produce a synthetic layered silicate;
- wherein the synthetic layered silicate, when dispersed in an aqueous medium at about 2% by weight, wherein the aqueous medium contains from about 1 milliequivalent/gram synthetic layered silicate to about 12 milliequivalents/gram synthetic layered silicate of an electrolyte, increases the viscosity of the aqueous medium to greater than about 200,000 centipoise;
- an organic solvent;
- an alkali metal hydroxide;
- and,
- tetrapotassium pyrophosphate.
8 more elements
A toothpaste comprising:
- water;
- sorbitol;
- a synthetic layered silicate made by the process comprising:
- preparing a magnesium metal compound solution, the magnesium metal compound solution comprising a magnesium cation;
- preparing a carbonate compound solution, the carbonate compound solution comprising a carbonate anion;
- mixing the magnesium metal compound solution and the carbonate compound solution;
- adding a monovalent metal compound, and a silicate solution, to produce a synthetic layered silicate;
- wherein the synthetic layered silicate, when dispersed in an aqueous medium at about 2% by weight, wherein the aqueous medium contains from about 1 milliequivalent/gram synthetic layered silicate to about 12 milliequivalents/gram synthetic layered silicate of an electrolyte, increases the viscosity of the aqueous medium to greater than about 200,000 centipoise;
- silica;
- and,
- an anti-caries compound.
8 more elements
A drilling fluid comprising:
- water;
- a synthetic layered silicate made by the process comprising:
- preparing a magnesium metal compound solution, the magnesium metal compound solution comprising a magnesium cation;
- preparing a carbonate compound solution, the carbonate compound solution comprising a carbonate anion;
- mixing the magnesium metal compound solution and the carbonate compound solution;
- adding a monovalent metal compound, and a silicate solution, to produce a synthetic layered silicate;
- wherein the synthetic layered silicate, when dispersed in an aqueous medium at about 2% by weight, wherein the aqueous medium contains from about 1 milliequivalent/gram synthetic layered silicate to about 12 milliequivalents/gram synthetic layered silicate of an electrolyte, increases the viscosity of the aqueous medium to greater than about 200,000 centipoise;
- a weighting agent;
- and,
- a fluid-loss agent.
7 more elements
A paint comprising:
- water;
- propylene glycol;
- titanium dioxide;
- resin;
- and,
- a synthetic layered silicate made by the process comprising:
- preparing a magnesium metal compound solution, the magnesium metal compound solution comprising a magnesium cation;
- preparing a carbonate compound solution, the carbonate compound solution comprising a carbonate anion;
- mixing the magnesium metal compound solution and the carbonate compound solution;
- adding a monovalent metal compound, and a silicate solution, to produce a synthetic layered silicate;
- wherein the synthetic layered silicate, when dispersed in an aqueous medium at about 2% by weight, wherein the aqueous medium contains from about 1 milliequivalent/gram synthetic layered silicate to about 12 milliequivalents/gram synthetic layered silicate of an electrolyte, increases the viscosity of the aqueous medium to greater than about 200,000 centipoise.
8 more elements
A printing ink comprising:
- water;
- a resin binder;
- a rosin salt resin;
- an aqueous emulsion resin polymer;
- a rewetting agent;
- a pigment;
- a soybean oil;
- and,
- a synthetic layered silicate made by the process comprising:
- preparing a magnesium metal compound solution, the magnesium metal compound solution comprising a magnesium cation;
- preparing a carbonate compound solution, the carbonate compound solution comprising a carbonate anion;
- mixing the magnesium metal compound solution and the carbonate compound solution;
- adding a monovalent metal compound, and a silicate solution, to produce a synthetic layered silicate;
- wherein the synthetic layered silicate, when dispersed in an aqueous medium at about 2% by weight, wherein the aqueous medium contains from about 1 milliequivalent/gram synthetic layered silicate to about 12 milliequivalents/gram synthetic layered silicate of an electrolyte, increases the viscosity of the aqueous medium to greater than about 200,000 centipoise.
11 more elements
Dependencies are inferred from the claim text.