# US 9,775,350 B2 · Micronized wood preservative formulations in organic carriers

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- Number: US 9,775,350 B2
- Document ID: US9775350B2
- Status: Granted
- Kind: B2
- Application number: 13/161,772
- Filed: 2011-06-16
- Published: 2011-10-13
- Granted: 2017-10-03
- Earliest claimed: 2004-10-14
- Assignees: Koppers Performance Chemicals Inc.
- Applicants: Jun Zhang; Robert M. Leach
- Inventors: Jun Zhang; Robert M. Leach
- Web page: https://patentgrep.com/patent/US9775350B2

## CPC

- A01N 43/653: 1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
- A01N 59/20: Copper
- C09D 5/14: Paints containing biocides, e.g. fungicides, insecticides or pesticides (C09D5/16 takes precedence)
- B27K 3/005: {employing compositions comprising microparticles}
- B27K 3/22: Compounds of zinc or copper
- B27K 3/343: {Heterocyclic compounds}
- B27K 3/52: Impregnating agents containing mixtures of inorganic and organic compounds
- 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)
- 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

## Abstract

Provided is a composition for the preservation of wood and other cellulosic materials. The composition comprises a dispersion of micronized inorganic compounds and/or organic biocides in an organic carrier. Also provided is a method for making the composition.

## Claims

### Claim 1

A method for preserving a wood product comprising the step of contacting the wood product with an organic liquid wood preservative composition consisting essentially of:
(a) a carrier consisting essentially of one or more liquid organic components;
(b) solid particles of copper and/or one or more copper compounds dispersed in said one or more organic liquid components;
wherein the solid particles have a solubility in the carrier of less than or equal to 0.5 gram per 100 grams of carrier at 25° C., and greater than 80 weight percent of the solid particles have a diameter in the range of 0.001 to 25 microns; and wherein at least 50 weight percent of the solid particles have diameters less than 10 microns; and wherein less than 20 weight percent of the solid particles have diameters less than 0.001 micron; and
(c) an organic biocide.

### Claim 2 (depends on 1)

The method of claim 1, wherein greater than 85 weight percent of the solid particles have a diameter in the range of 0.001 to 25 microns.

### Claim 3 (depends on 2)

The method of claim 2, wherein greater than 90 weight percent of the solid particles have a diameter in the range of 0.001 to 25 microns.

### Claim 4 (depends on 3)

The method of claim 3, wherein greater than 95 weight percent of the solid particles have a diameter in the range of 0.001 to 25 microns.

### Claim 5 (depends on 4)

The method of claim 4, wherein greater than 99 weight percent of the solid particles have a diameter in the range of 0.001 to 25 microns.

### Claim 6 (depends on 1)

The method of claim 1, wherein the solid particles have a solubility in the carrier of less than or equal to 0.1 gram per 100 grams of carrier at 25° C.

### Claim 7 (depends on 1)

The method of claim 1, wherein the copper and/or the one or more copper compounds comprise copper hydroxide, copper oxide, copper carbonate, basic copper carbonate, copper oxychloride, copper 8-hydroxyquinolate, copper dimethyldithiocarbamate, copper omadine or copper borate.

### Claim 8 (depends on 1)

The method of claim 1, wherein the organic biocide comprises a fungicide, insecticide, moldicide, bactericide, or algaecide, or combinations thereof.

### Claim 9 (depends on 1)

The method of claim 1, further comprising the step of diluting the composition before the contacting step, wherein the composition is a concentrate before the diluting step.

### Claim 10 (depends on 1)

The method of claim 1, wherein the composition is a treating solution.

### Claim 11 (depends on 1)

The method of claim 1, wherein the one or more liquid organic components are selected from the group consisting of white mineral spirits, #2 fuel oil, n-butyl acetate, methoxypropyl acetate, toluene, xylene, linseed oil, mineral oil, olive oil, vegetable oil, castor oil and mineral spirits.

### Claim 12 (depends on 1)

The method of claim 1, wherein the composition further comprises one or more dispersants and/or wetting agents.

### Claim 13 (depends on 1)

The method of claim 1, wherein the composition further comprises one or more surfactants, defoamers, weathering agents, water repellants, colorants, emulsifying agents, stabilizers, UV inhibitors, drying agents and/or polymer systems.