US4273688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood textured aqueous latex containing wood particles with sorbed organic solvent
Assignee: Sherwin Williams Co
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Filing: 1979-12-03
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Granted: 1981-06-16
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Expires: 1999-12-03
Abstract
Abstract A viscosity stable, stainable, wood textured, aqueous latex composition comprises from 5% to 30% of the weight of the composition of wood particles having sorbed therein a water immiscible organic solvent in an amount of at least about 60% of the weight of the wood to provide a free-flowing, solvent-wet powder, an aqueous emulsion of film-forming plasticized resin particles coalescable at room temperature or below; the proportion of wood particles, the resin solids content of the aqueous emulsion and the plasticization of the resin particles providing a viscous mass, and the organic solvent sorbed in the wood particles providing viscosity stability.
Inventors
- 👤 Rita E. Porzel
- 👤 Cathryn D. Bator
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:01
CPC Classifications
B; B63; B63B; B63B5/00; B63B5/02; B63B5/06; B63B5/065; C; C09; C09D; C09D5/00; C09D5/34
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
109 words
A viscosity stable, stainable, wood textured, aqueous latex composition comprising from 5% to 30% of the weight of the composition of wood particles having sorbed therein a water immiscible organic solvent in an amount of at least about 60% of the weight of the wood to provide a free-flowing, solvent-wet powder, an aqueous emulsion of film-forming plasticized resin particles coalescable at room temperature or below; said emulsion constituting about 35% to about 70% by weight of the composition, the proportion of wood particles, the resin solids content of said aqueous emulsion and the plasticization of the resin particles providing a viscous mass, and said organic solvent providing viscosity stability.
Claim 2
Dependent Claim
109 words
A viscosity stable, stainable, wood textured, aqueous latex composition comprising from 5% to 30% of the weight of the composition of wood particles having sorbed therein a water immiscible organic solvent in an amount of at least about 60% of the weight of the wood to provide a free-flowing, solvent-wet powder, an aqueous emulsion of film-forming plasticized resin particles coalescable at room temperature or below; said emulsion constituting about 35% to about 70% by weight of the composition, the proportion of wood particles, the resin solids content of said aqueous emulsion and the plasticization of the resin particles providing a viscous mass, and said organic solvent providing viscosity stability.
Claim 3
Dependent Claim
15 words
The composition as recited in claim 1 wherein organic solvent is an aliphatic hydrocarbon solvent.
Claim 4
Dependent Claim
22 words
The composition recited in claim 2 wherein said solvent is selected from the group consisting of mineral spirits, turpentine and turpentine substitutes.
Claim 5
Dependent Claim
22 words
The composition recited in claim 2 wherein said organic solvent has a boiling range of about 130° C., to about 200° C.
Claim 6
Dependent Claim
16 words
The composition recited in any one of claims 1-4 wherein said wood particles comprise wood flour.
Claim 7
Dependent Claim
34 words
The composition recited in claim 1 wherein wood particles are selected from the group consisting of wood flour, sawdust and mixtures thereof, said sawdust having particles sizes of about 250 to about 2000 microns.
Claim 8
Dependent Claim
26 words
The composition recited in any one of claims 1-4 and 6 wherein said aqueous emulsion contains about 35% to about 65% by weight of resin solids.
Claim 9
Dependent Claim
23 words
The composition recited in claim 7 wherein an oily plasticizer is relied upon to provide the desired low coalescing temperature and increased viscosity.
Claim 10
Dependent Claim
17 words
The composition recited in claim 1 having a viscosity of about 2800 poise to about 6000 poise.
References Cited (Backward Citations)
US3749692A
Cited
US4202804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |