Waterborne aqueous-alcohol soluble protein compositions, applications, and methods
Waterborne aqueous-alcohol soluble protein compositions, methods of making the compositions, and applications thereof are disclosed. The dispersion compositions include protein, water, acid, and optionally an ester of a carboxylic acid. The methods of making the compositions including combining the protein, water, acid and optionally ester to form a dispersion without the benefit of alcohol. Applications include industrial and food applications, such as binders and coatings, for example paint binders or coatings for paper products and pharmaceuticals.
1. A method, comprising:
combining a set of components in one or more steps to form a dispersion of an aqueous-alcohol soluble protein without the addition of alcohol, wherein the set of components comprises an amount of an aqueous-alcohol soluble protein, an amount of water, an amount of an acid, and an amount of an ester of a carboxylic acid, and further wherein combining comprises: dissolving the acid in water to form a first mixture; and, mixing the ester and the protein into the first mixture to form the dispersion.
2. A method according to claim 1 , wherein mixing comprises stirring, heating, and cooling.
3. A method according to claim 1 , further comprising: drying the dispersion.
4. A method according to claim 3 , further comprising: re-dispersing the dried dispersion in water.
5. A method according to claim 1 , further comprising preparing at least one of a binder or a coating from the dispersion.
6. A method according to claim 1 , further comprising preparing a paint composition, a composition for use in pharmaceutical applications, a composition for use in food applications, a varnish composition, or an adhesive composition using the dispersion.
7. A method, comprising:
combining a set of components in one or more steps to form a dispersion of an aqueous-alcohol soluble protein without the addition of alcohol, wherein the set of components comprises an amount of an aqueous-alcohol soluble protein, an amount of water, an amount of an acid, and an amount of an ester of a carboxylic acid, and further wherein combining comprises: dissolving ester and acid in water to form a first liquid portion; dissolving acid in water to form a second liquid portion; adding the first liquid portion to the protein to form a first mixture; stirring and heating the first mixture; heating the second liquid portion; heating water; alternatively adding while stirring the heated second liquid portion and the heated water in one or more steps to the first mixture to form a second mixture; and, cooling while stirring the second mixture to room temperature.
8. A method according to claim 7 , further comprising: drying the dispersion.
9. A method according to claim 8 , further comprising: re-dispersing the dried dispersion in water.
10. A method according to claim 7 , further comprising preparing at least one of a binder or a coating from the dispersion.
11. A method according to claim 7 , further comprising preparing a paint composition, a composition for use in pharmaceutical applications, a composition for use in food applications, a varnish composition, or an adhesive composition using the dispersion.