# US 2014/0193634 A1 · Compositions and methods for treating cellulose-based materials with micronized additives

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- Number: US 2014/0193634 A1
- Document ID: US20140193634A1
- Status: Published application
- Kind: A1
- Application number: 14/069,651
- Filed: 2013-11-01
- Published: 2014-07-10
- Earliest claimed: 2004-05-13
- Assignees: Osmose, Inc.
- Applicants: Osmose, Inc.
- Inventors: Robert M. Leach; Jun Zhang
- Web page: https://patentgrep.com/patent/US20140193634A1

## CPC

- B27K 3/005: {employing compositions comprising microparticles}
- A01N 25/12: Powders or granules (A01N25/26 takes precedence)
- B27K 3/08: Impregnating by pressure {, e.g. vacuum impregnation}
- B27K 3/15: Impregnating involving polymerisation {including use of polymer-containing impregnating agents (macromolecular compounds derived from lignocellulosic materials C08H; compositions of lignin-containing materials C08L97/02)}
- B27K 3/22: Compounds of zinc or copper
- B27K 3/26: Compounds of iron, aluminium, or chromium
- B27K 3/32: Mixtures of different inorganic impregnating agents
- B27K 3/36: Aliphatic compounds
- B27K 3/52: Impregnating agents containing mixtures of inorganic and organic compounds
- B27K 5/02: Staining or dyeing wood {(wood staining compositions C09D15/00)}; Bleaching wood (bleaching wood pulp D21C9/10)
- C09D 5/14: Paints containing biocides, e.g. fungicides, insecticides or pesticides (C09D5/16 takes precedence)
- B27K 3/16: Inorganic impregnating agents
- B27K 3/34: Organic impregnating agents {(polymers B27K3/15)}
- B27K 2240/20: Removing fungi, molds or insects
- B27K 2240/30: Fireproofing
- B27K 2240/90: UV-protection
- Y10T 428/25: Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T 428/254: Polymeric or resinous material
- Y10T 428/256: Heavy metal or aluminum or compound thereof
- Y10T 428/268: Monolayer with structurally defined element
- Y10T 428/2982: Particulate matter [e.g., sphere, flake, etc.]
- Y10T 428/31895: Paper or wood
- Y10T 428/31989: Of wood
- Y10T 428/662: Wood timber product [e.g., piling, post, veneer, etc.]
- B27K: PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR (applying liquids or other fluent materials to surfaces in general B05; coating wood or similar material B44D); CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A composition for treating cellulosic materials is provided. The composition comprises a dispersion of micronized additives. The dispersion comprises additive particles with diameters in the range of 0.001 to 25 microns. Also provided is a method for the application of the additive-containing composition to wood, as well as wood products which have been treated with the composition.

## Claims

### Claim at position 1

1-8. (canceled)

### Claim 9

A process for treating wood, said process comprising the steps of:
a) providing an aqueous composition comprising one or more solid particles of an additive dispersed in water having diameters in the range of 0.001 to 25 microns; and
b) applying said composition to wood such that at least some of the particles penetrate the surface of the wood and are distributed throughout a cross section of the wood;
wherein the additive is zinc oxide, titanium dioxide, or an aluminum flake pigment; greater than 80 weight percent of the particles have diameters less than 1 micron; and the additive is applied to the wood by pressure treatment, vacuum treatment, or both.

### Claim at position 3

10-15. (canceled)

### Claim 16 (depends on 9)

A process as in claim 9, wherein said aqueous composition further comprises an additive which is carbon black or black iron oxide.

### Claim 17 (depends on 16)

A process as in claim 16, further comprising performing the step a) by grinding said additives into micronized form.

### Claim 18 (depends on 16)

Wood treated by the process of claim 16, wherein said wood comprises solid particles of said additives inside the wood, wherein said particles have diameters in the range of from 0.001 to 25 microns.

### Claim 19 (depends on 18)

Wood as in claim 18, wherein said aqueous composition further comprises one or more additives selected from the group consisting of inorganic pigments, organic pigments, water repellants, anti-weathering agents, dimensional stabilization agents, and fire retardants.

### Claim 20

(canceled)

### Claim 21

Wood comprising:
a) an aqueous composition comprising one or more solid particles of an additive dispersed in water having diameters in the range of 0.001 to 25 microns;
b) wherein at least some of the particles penetrate the surface of the wood and are distributed throughout a cross section of the wood; and
c) wherein the additive is zinc oxide, titanium dioxide, or an aluminum flake pigment; and greater than 80 weight percent of the particles have diameters less than 1 micron.

### Claim 22 (depends on 21)

Wood of claim 21, wherein said aqueous composition further comprises an additive which is carbon black or black iron oxide.

### Claim 23 (depends on 16)

A process as in claim 16, wherein said aqueous composition further comprises a biocide.

### Claim 24 (depends on 23)

A process as in claim 23, where said biocide is solid.

### Claim 25 (depends on 24)

A process as in claim 24, wherein said solid biocide is copper or a copper compound.

### Claim 26 (depends on 22)

Wood of claim 22, wherein said aqueous composition further comprises a biocide.

### Claim 27 (depends on 26)

Wood of claim 26, wherein said biocide is solid.

### Claim 28 (depends on 27)

Wood of claim 27, wherein said solid biocide is copper or a copper compound.

### Claim 29 (depends on 16)

A process as in claim 16, wherein said aqueous composition further comprises a colorant.

### Claim 30 (depends on 22)

Wood of claim 22, wherein said aqueous composition further comprises a colorant.

### Claim 31

A process for treating wood, said process comprising the steps of:
a) providing an aqueous composition comprising one or more solid particles of an additive dispersed in water having diameters in the range of 0.001 to 25 microns; and
b) applying said composition to wood such that at least some of the particles penetrate the surface of the wood and are distributed throughout a cross section of the wood;
wherein the additive is carbon black or black iron oxide; greater than 80 weight percent of the particles have diameters less than 1 micron; and the additive is applied to the wood by pressure treatment, vacuum treatment, or both.

### Claim 32

Wood comprising:
a) an aqueous composition comprising one or more solid particles of an additive dispersed in water having diameters in the range of 0.001 to 25 microns;
b) wherein at least some of the particles penetrate the surface of the wood and are distributed throughout a cross section of the wood; and
c) wherein the additive is carbon black or black iron oxide; and greater than 80 weight percent of the particles have diameters less than 1 micron.