COMPOSITIONS FOR PREVENTION OF ICE BUILD-UP

• US 20150361319A1
• Filed: 01/30/2014
• Published: 12/17/2015
• Est. Priority Date: 01/30/2013
• Status: Active Grant

• Current Assignee: University of Pittsburgh of The Commonwealth System of Higher Education
• Original Assignee: University of Pittsburgh of The Commonwealth System of Higher Education
• Inventors: Gao, DI
• Granted Patent: US 9,688,894 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C08G 77/16 to hydroxyl groups
• CPC Class Codes: C08G 77/24 halogen-containing groups
• CPC Class Codes: C08K 5/5419 containing at least one Si—C bond
• CPC Class Codes: C08K 5/57 Organo-tin compounds
• CPC Class Codes: C08L 83/00 Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 83/04 Polysiloxanes
• CPC Class Codes: C09D 183/04 Polysiloxanes
• CPC Class Codes: C09K 3/18 for application to surfaces to minimize adherence of ice, mist or water thereto rendering particulate materials free flowing, in general, e.g. making them hydrophobic B01J2/30; Thawing or antifreeze materials for application to surfaces used in liquids for heat-transfer, heat-exchange or heat-storage or for the production of heat or cold other than by combustion, e.g. radiator liquids, C09K5/00

Abstract

A composition comprising a silicone oil or fluorosilicone fluid infused in a cross-linked silicone resin matrix. The silicone oil or fluorosilicone fluid may comprise a linear or branched polymeric siloxane that may be functionalized with one or more of: alkyl, fluoroalkyl, aryl, benzyl, halo, hydride, hydroxyl, -alkyl-OH, -alkyl-SH, halo, -aryl-halogen, -alkyl-COOH, -alkyl(COOH)-alkyl-COO-alkyl, alkenyl, vinyl, -alkyl-acryloyl, -alkylamino, -alkyl-NH-alkyl-NH2, -alkyl-OOC—NH-alkyl-NCO, -alkyl-O-oxiranyl, monofluoromethyl, difluoromethyl, trifluoromethyl, or alkeneoxide co-polymer.

Claims

1. A composition comprising:

a silicone oil or fluorosilicone fluid infused in a cross-linked silicone resin matrix.

2. The composition of claim 1 wherein the weight ratio of the silicone oil or fluorosilicone fluid to silicone resin is 1-20:

1.

3. The composition of claim 1 wherein the weight ratio of the silicone oil or fluorosilicone fluid to silicone resin is 1-10:

1.

4. The composition of claim 1 wherein the weight ratio of the silicone oil or fluorosilicone fluid to silicone resin is 2-8:

1.

5. The composition of claim 1 wherein the silicone oil or fluorosilicone fluid comprises a linear polymeric siloxane.

6. The composition of claim 1 wherein the silicone oil or fluorosilicone fluid has a viscosity ranging from about 2 cP to about 300,000 cP.

7. The composition of claim 1 wherein the silicone oil or fluorosilicone fluid has a viscosity ranging from about 10 cP to about 10,000 cP.

8. The composition of claim 1 wherein the silicone oil or fluorosilicone fluid has a viscosity ranging from about 50 cP to about 500 cP.

9. The composition of claim 1 comprising, by weight, 75% polydimethylsiloxane (PDMS) and 25% silicone resin matrix.

10. The composition of claim 9 wherein the PDMS has a dynamic viscosity of 200 cP and the silicone resin matrix comprises a three dimensional polymer matrix comprising a trifunctional siloxane crosslinked with one or more other trifunctional siloxanes or difunctional siloxanes.

11. The composition of claim 1 wherein the silicone oil or fluorosilicone fluid comprises a copolymer of siloxane or a linear copolymer of siloxane.

12. The composition of claim 1 wherein the silicone oil or fluorosilicone fluid comprises a branched silicone.

13. The composition of claim 1 wherein the silicone oil or fluorosilicone fluid comprises a cyclic siloxane.

14. The composition of claim 1 wherein the silicone oil or fluorosilicone fluid comprises a linear or branched polymeric siloxane functionalized with one or more of the following groups:

alkyl, fluoroalkyl, aryl, benzyl, halo, hydride, hydroxyl, -alkyl-OH, -alkyl-SH, halo, -aryl-halogen, -alkyl-COOH, -alkyl(COOH)-alkyl-COO-alkyl, alkenyl, vinyl, -alkyl-acryloyl, -alkylamino, -alkyl-NH-alkyl-NH2, -alkyl-OOC—

NH-alkyl-NCO, -alkyl-O-oxiranyl, monofluoromethyl, difluoromethyl, trifluoromethyl, or alkeneoxide co-polymer.

15. The composition of claim 1 further comprising one or more of a group consisting of a paint, a liquid coating, a solid coating, silicone oil or fluorosilicone fluid encapsulated in vesicles, an alcohol, an ester, an ether, a ketone, an ether-alcohol, an aromatic hydrocarbon, an aliphatic hydrocarbon, a halogenated hydrocarbon, and a volatile silicone.