IP Library › Granted Patent US 8,088,443
Granted Patent B2
US 8,088,443 · App. 12/570,664 · Granted Jan 3, 2012

Emulsification of concentrated dispersions of colloidal and nanoparticles

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Quick Facts
Patent No.
US 8,088,443
App. No.
12/570,664
Granted
Jan 3, 2012
Kind
B2
Abstract

A process to coat a shear thickening fluid onto a material which comprises emulsifying dispersions of a shear thickening fluid (STF) dissolved in a miscible carrier fluid or a partially miscible carrier fluid to form an emulsion and applying said emulsion to the material. The invention also relates to a suspoemulsion containing a shear thickening fluid which has been emulsified in a volatile solvent. The invention further relates to a method coating a material. The invention further relates to a method of a coating a material with the suspoemulsion.

Claims (21)

1. A process to intercalate a shear thickening fluid onto a material which comprises emulsifying a shear thickening fluid (STF) dispersed in a water like system which comprises water and optionally an aqueous soluble solvent to form an emulsion and applying said emulsion to the material.

2. The process as claimed in claim 1 , wherein the material is a ballistic material.

3. The process as claimed in claim 1 , wherein the material is a nylon, polyolefin or polyester.

4. The process as claimed in claim 1 , wherein the material is a poly (para-phenylene terephthalamide) fabric.

5. The process as claimed in claim 1 , where the water like system comprises water.

6. The process as claimed in claim 1 , where the water like system comprises water and the material is a nylon, polyolefin or polyester.

7. The process as claimed in claim 1 , which the STF further comprises a co-solvent.

8. The process as claimed in claim 7 , wherein the cosolvent is an alkane.

9. The process as claimed in claim 7 , wherein the cosolvent is heptane, hexane or toluene.

10. The process as claimed in claim 1 where a surfactant is used to stabilize the emulsion.

11. The process as claimed in claim 1 , wherein the emulsion is created by sonicating or mechanical mixing.

12. The process as claimed in claim 1 , wherein said emulsion is a suspoemulsion.

13. The process as claimed in claim 1 , wherein the material comprises a polyolefin.

14. The process as claimed in claim 1 , wherein the material comprises a polyethylene, polypropylene, nylon, polymethylmethacrylate, polyvinylchloride, polyethylene terephthalate (PET) or polycarbonate.

15. The process as claimed in claim 1 wherein the material comprises nylon.

16. The process as claimed in claim 1 , wherein the material comprises polyester.

17. The process as claimed in claim 1 , which the STF further comprises a cosolvent wherein the cosolvent is an alkane and the water like system comprises water.

18. The process as claimed in claim 1 , wherein the material comprises a polyethylene, polypropylene, nylon, polymethylmethacrylate, polyvinylchloride, polyethylene terephthalate (PET) or polycarbonate, and

the STF further comprises a cosolvent wherein the cosolvent is an alkane and the water like system comprises water.

19. The process as claimed in claim 1 , wherein the water like system comprises water and alcohol.

20. The process as claimed in claim 9 , which the water like system further comprises a surfactant with an HLB value of about 8 to about 20.