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US 6,586,505 B1Granted
Aqueous resin dispersion
AssigneeEastman Chemical Resins, Inc.
InventorsMichael J. Cronin, Peter M. Dunckley, George J. Kutsek
Life of this patent
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Abstract
This invention relates to aqueous resin dispersions comprising water, resin, a surfactant, and a caseinate. This invention also relates to the process for producing the aqueous resin dispersion and to adhesives formulated with the aqueous resin dispersion.
Claims22
A process for producing an aqueous resin dispersion adhesive precursor, comprising:
- forming a mixture of resin, water and a surfactant;
- dispersing the resin in the water to form an aqueous dispersion;
- and
- after forming the aqueous dispersion, adding a caseinate solution to the aqueous dispersion,
- wherein the resin is selected from the group consisting of C-5 hydrocarbon resins, C-9 hydrocarbon resins, rosin acids, rosin esters, phenolic modified rosins, terpene resins, terpene phenolic resins, mixtures thereof and hydrogenated versions thereof, and has a molecular weight from 300 to 10,000 weight average molecular weight (MW).
2 more elements
A water-based adhesive comprising:
- a resin dispersed in water by a surfactant to form an aqueous dispersion;
- a caseinate solution added to the aqueous dispersion;
- and
- a polymer latex suitable to produce an adhesive, wherein
- the resin is selected from the group consisting of C-5 hydrocarbon resins, C-9 hydrocarbon resins, rosin acids, rosin esters, phenolic modified rosins, terpene resins, terpene phenolic resins, mixtures thereof and hydrogenated versions thereof, and has a molecular weight from 300 to 10,000 weight average a molecular weight (MW), and
- the water-based adhesive is free from organic solvents.
3 more elements
A process for producing an adhesive, comprising:
- forming an aqueous resin dispersion comprising:
- forming a mixture of resin, water and a surfactant;
- dispersing the resin in the water to form an aqueous dispersion;
- and
- after forming the aqueous dispersion, adding a caseinate solution to the aqueous dispersion, wherein
- the resin is selected from the group consisting of C-5 hydrocarbon resins, C-9 hydrocarbon resins, rosin acids, rosin esters, phenolic modified rosins, terpene resins, terpene phenolic resins, mixtures thereof and hydrogenated versions thereof, and has a molecular weight from 300 to 10,000 weight average molecular weight (MW);
- and
- combining the aqueous resin dispersion with a polymer latex suitable to produce an adhesive.
5 more elements
Dependencies are inferred from the claim text.