Composite material including a thermoplastic polymer, a pest food material and a pesticide

Patent metadata

Field	Value
Publication number	US-9775341-B2
Application number	US-201514790691-A
Country	US
Kind code	B2
Filing date	Jul 2, 2015
Priority date	Dec 21, 2006
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

Composite materials that are palatable to a wood-destroying pest species and also pesticidal to the pest species can be used in pest control devices and can be used as wood substitutes for structural components, which are resistant to destruction by wood-destroying pests. The composite materials include a thermoplastic polymer, a food material for the pest and a pesticide. The composite material is formed by mixing a thermoplastic polymer, wood fragments or other cellulosic materials and a quantity of pesticide, and thereafter creating a molten material within a mixer, compounder, extruder or the like. The molten material is extruded or molded to form the desired shape.

First claim

What is claimed is:

1. A composite material for use in pest control, the composite material comprising:
a plastic structural matrix that comprises cellulose acetate butyrate (CAB);
a cellulosic food material that is palatable to a pest; and
a pesticide that is toxic to the pest
wherein the plastic structural matrix comprises from about 5% to about 50% by weight of the composite material, wherein the cellulosic food material comprises from about 50% to about 85% by weight of the composite material, and wherein the pesticide comprises from about 0.001% to about 5% by weight of the composite material, and
wherein the pesticide is noviflumuron.

2. The composite material of claim 1 wherein the CAB is selected from the group consisting of CAB having a degree of polymerization from about 50 units to about 400 units, CAB having a degree of polymerization from about 100 units to about 300 units, CAB having a degree of polymerization of about 160 units, and a combination thereof.

3. The composite material of claim 1 wherein the CAB comprises (a) a mixture of CAB having from about 50 monomer units to about 75 monomer units and CAB having from about 150 to about 300 monomer units, (b) a mixture of CAB having about 60 monomer units and CAB having about 300 monomer units, or (c) a mixture of CAB having about 64 monomer units and CAB having about 160 monomer units.

4. The composite material of claim 1 wherein the CAB comprises a mixture of CAB having a molecular weight of about 16,000 and CAB having a molecular weight of about 40,000.

5. The composite material of claim 1 wherein the cellulosic food material is selected from the group consisting of alpha cellulose, beta cellulose, gamma cellulose, preferred texture cellulose (PTC), wood, wood chips, wood fibers, sawdust, cardboard, paper, microcrystalline cellulose, and a combination thereof.

6. The composite material of claim 1 wherein the cellulosic food material comprises a purified cellulose.

7. The composite material of claim 1 wherein the pest comprises a cellulose-consuming organism.

8. The composite material of claim 1 wherein the pest is selected from the group consisting of termites, carpenter ants, carpenter wasps, and a combination thereof.

9. The composite material of claim 1 further comprising a stabilizer, processing aid, herbicide, fungicide, antimicrobial, bactericide, defoliant, safener, synergist, algaecide, attractant, desiccant, pheromone, repellant, animal dip, avicide, disinfectant, semiochemical, molluscicide, and a combination thereof.

10. The composite material of claim 1 further comprising a lubricant.

11. The composite material of claim 10 wherein the lubricant comprises up to about 5% by weight of the composite material.

12. The composite material of claim 1 wherein the cellulosic food material comprises alpha cellulose.

13. The composite material of claim 1 wherein the plastic structural matrix comprises from about 10% to about 40% by weight of the composite material, wherein the cellulosic food material comprises from about 60% to about 85% by weight of the composite material, and wherein the pesticide comprises from about 0.001% to about 5% by weight of the composite material.

14. The composite material of claim 1 wherein the plastic structural matrix comprises from about 15% to about 30% by weight of the composite material, wherein the cellulosic food material comprises from about 70% to about 85% by weight of the composite material, and wherein the pesticide comprises from about 0.001% to about 5% by weight of the composite material.

15. The composite material of claim 1 wherein the pesticide comprises from about 0.4% to about 5% by weight of the composite material.

16. A composite material for use in pest control, the composite material comprising:
a plastic structural matrix that comprises cellulose acetate butyrate;
alpha cellulose contained in the plastic structural matrix; and
noviflumuron,
wherein the plastic structural matrix comprises from about 5% to about 50% by weight of the composite material, wherein the alpha cellulose comprises from about 50% to about 85% by weight of the composite material, and wherein the noviflumuron comprises from about 0.001% to about 5% by weight of the composite material.

Assignees

• Dow Agrosciences Llc

Inventors

• Hill Robert L
• King James E
• Demark Joseph J
• Arnoldy Anton
• Tolley Mike P
• Williams Iii Donald E
• Eger Jr Joseph E

Classifications

• A01M1/02

  with devices {or substances, e.g. food, pheronones} attracting the insects · CPC title

• A01N25/10 Primary

  Macromolecular compounds · CPC title

• A01N25/006

  insecticidal · CPC title

• A01M1/026 Primary

  combined with devices for monitoring insect presence, e.g. termites (bait stations A01M1/2005; detecting other animals in a given area A01M31/002) · CPC title

• A01N45/02

  having three carbocyclic rings · CPC title