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US 7,531,034 B2Granted
Metal-phosphate binders
AssigneeCaterpillar Inc.
InventorsBeth Ann Howe, Jesus Guadalupe Chaps-Cabrera
Life of this patent
Estimating the term…
Abstract
A metal-phosphate binder is provided. The binder may include an aqueous phosphoric acid solution, a metal-cation donor including a metal other than aluminum, an aluminum-cation donor, and a non-carbohydrate electron donor.
Claims19
A metal-phosphate binder, comprising:
- an aqueous phosphoric acid solution;
- a metal-cation donor including a metal other than aluminum, wherein the metal-cation donor includes a metal nitrate;
- an aluminum-cation donor;
- and
- a non-carbohydrate electron donor including methanol, wherein the methanol is included in a quantity sufficient to reduce substantially all of the metal-cation donor and the aluminum-cation donor.
2 more elements
A method of producing a metal-phosphate binder, comprising:
- combining a metal-cation donor including a metal other than aluminum, an aluminum-cation donor, and a non-carbohydrate electron donor in an aqueous phosphoric acid solution;
- wherein the metal-cation donor includes a metal nitrate;
- and
- wherein the non-carbohydrate electron donor includes methanol, the methanol being provided in a quantity sufficient to reduce substantially all of the metal-cation donor and the aluminum-cation donor.
1 more element
A metal-phosphate material, comprising:
- a metal-phosphate binder solution, including:
- a metal-cation donor including a metal other than aluminum, wherein the metal-cation donor includes a metal nitrate;
- an aluminum-cation donor;
- and
- a non-carbohydrate electron donor including methanol, wherein the methanol is included in a quantity sufficient to reduce substantially all of the metal-cation donor and the aluminum-cation donor;
- and
- a filler material.
4 more elements
Dependencies are inferred from the claim text.