IP Library Granted Patent US 11,091,664
Granted Patent B2
US 11,091,664 · App. 15/722,710 · Granted Aug 17, 2021

Tung oil-based non-lapping water-compatible wood stain

Inventor: Joshua Halstead (Parma, OH)
Assignee: THE SHERWIN-WILLIAMS COMPANY
C09D15/00B01F17/0028C08F242/00C08K5/17C08L71/02C08L91/005C09D5/027C09D5/028C09D7/41C09D7/43C09D167/08C08L2201/56
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Quick Facts
Patent No.
US 11,091,664
App. No.
15/722,710
Granted
Aug 17, 2021
Kind
B2
Abstract

Water-based stains are based on an oil-in-water emulsion having a binder that includes, consists of, or consists essentially of drying oil combined with a non-aqueous polymer dispersion. The compositions can be tinted using traditional water-based pigment dispersions, yet the overall hydrophobicity results in minimal interaction with the polar cellulosic structure of wood.

Claims (14)

1. A wood stain composition comprising:

a water-based stain in the form of an oil-in-water emulsion, the emulsion comprising a binder consisting essentially of drying oil and a non-aqueous polymer dispersion.

2. The composition of claim 1 , further comprising a water-based pigment dispersion.

3. The composition of claim 1 , wherein the non-aqueous polymer dispersion is an alkyd dispersion.

4. The composition of claim 1 , further comprising a thickener.

5. The composition of claim 4 , wherein the thickener consists essentially of hydroxyethylcellulose, hydrophobically-modified ethylene oxide-based urethanes, or hydrophobically-modified alkali soluble emulsions.

6. The composition of claim 1 , further comprising a defoamer.

7. The composition of claim 1 , further comprising an amine.

8. The composition of claim 7 , wherein the amine consists essentially of dimethylethanolamine, monoethylethanolamine, trimethylethanolamine, morpholine, or ammonia.

9. The composition of claim 1 , further comprising at least one drying agent.

10. The composition of claim 1 , further comprising a surfactant.

11. The composition of claim 10 , wherein the surfactant has a hydrophile-lipophile balance value between 5 and 15.

12. The composition of claim 10 , wherein the surfactant is an octylphenol ethoxylate surfactant.

13. The composition of claim 1 , wherein the drying oil is tung oil.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2018
From: HALSTEAD, JOSHUA
To: THE SHERWIN-WILLIAMS COMPANY
Reel/Frame 046198/0646 →