Claims
- 1. A foamed resin composition comprising:
- a liquid epoxy resin;
- an effective amount of a fluorocarbon surfactant foaming agent to produce a foam; and
- a gas present in an amount sufficient to foam said composition.
- 2. The composition of claim 1 wherein said epoxy resin comprises a condensation reaction product of epichlorohydrin and bisphenol A.
- 3. The composition of claim 1 wherein said epoxy resin has a molecular weight in the range of from about 200 to about 1000 and a one gram equivalent of epoxide per about 100 to about 200 grams of said epoxy resin.
- 4. The composition of claim 1 wherein said fluorocarbon surfactant foaming agent is selected from the group of fluorinated alkyl alkoxylates, fluorinated alkyl esters and fluorinated aliphatic polymeric esters.
- 5. The composition of claim 1 wherein said fluorocarbon surfactant foaming agent is a fluorinated aliphatic polymeric ester and is present in said composition in the range of from about 1% to about 12% by weight of epoxy resin therein.
- 6. The composition of claim 1 wherein said composition further comprises a liquid diluent containing one or more aromatic hydrocarbons present in said composition in an amount in the range of from about 25% to about 50% by weight of epoxy resin therein.
- 7. The composition of claim 6 wherein said aromatic hydrocarbons are selected from the group of toluene, ethylbenzene, n-propylbenzene; isopropylbenzene, n-butylbenzene, isobutylbenzene, cyclohexylbenzene, n-hexylbenzene, xylene, diethylbenzene, 2-chloro-p-xylene, diisopropylbenzene, 2-nitro-p-xylene, cymene, durene, isodurene, trimethylbenzene, triethylbenzene, dibutylbenzene, penta-methylbenzene, 1-pentyl-3-ethylbenzene, p-pentyltoluene, 1-hexyl-3-isobutylbenzene, m-hexyltoluene, 1-heptyl-3-isopropylbenzene, p-heptyltoluene, 1-heptyl-3-ethylbenzene, 1-octyl-3-butylbenzene, 1-octyl-3-propylbenzene, p-octyltoluene, 1-nonyl-3-ethylbenzene, p-nonyltoluene, 1-dodecyl-3-ethylbenzene, p-isodecyltoluene, 1-decyl-3-isotridecylbenzene and mixtures thereof.
- 8. The composition of claim 1 wherein said composition further comprises a hydrocarbon diluent comprising one or more aromatic hydrocarbons having the formula
- C.sub.6 H.sub.2 (R).sub.4
- wherein R is hydrogen or a straight or branched chain alkyl radical having from 1 to 3 carbon atoms with at least two of the Rs being alkyl radicals, said diluent being present in said composition in an amount in the range of from about 25% to about 50% by weight of epoxy resin therein.
- 9. The composition of claim 1 wherein said composition further comprises a plastic fixer selected from the group of N-.beta.-aminoethyl-.GAMMA.-aminopropyl-trimethoxysilane, .GAMMA.-aminopropyltriethoxysilane and .GAMMA.-aminopropyltrimethoxysilane and is present in said composition in an amount in the range of from about 0.01% to about 5% by weight of epoxy resin therein.
- 10. The composition of claim 1 wherein said composition further comprises a hardening agent selected from the group of aliphatic amines, cycloaliphatic amines, imidazoles, tertiary amines, aromatic amines and carboxylic acid anhydrides and is present in said composition in an amount in the range of from about 25% to about 70% by weight of the epoxy resin therein.
- 11. The composition of claim 1 wherein said gas is selected from the group of air and nitrogen and is present in said composition in an amount sufficient to foam said composition and produce a density in the range of from about 6 to about 16 pounds per gallon.
- 12. The composition of claim 1 wherein said composition further comprises a filler.
- 13. The composition of claim 12 wherein said filler is selected from the group of crystalline silica having a particle size in the range of from about 10 to about 20 microns, barite, calcium carbonate amorphous silica and iron oxide having a particle size in the range of from about 2 to about 4 microns present in said composition in an amount in the range of from about 10% to about 200% by weight of epoxy resin therein.
- 14. A foamed resin composition for sealing a subterranean zone comprising:
- a liquid epoxy resin;
- an effective amount of a fluorocarbon surfactant foaming agent selected from the group of fluorinated alkyl alkoxylates, fluorinated alkyl esters and fluorinated aliphatic polymeric esters to produce a foam; and
- a gas is present in said composition in an amount sufficient to foam said composition and produce a density in the range of from about 6 to about 16 pounds per gallon.
- 15. The composition of claim 14 wherein said epoxy resin comprises a condensation reaction product of epichlorohydrin and bisphenol A.
- 16. The composition of claim 14 wherein said epoxy resin has a molecular weight in the range of from about 200 to about 1000 and a one gram equivalent of epoxide per about 100 to about 200 grams of said epoxy resin.
- 17. The composition of claim 14 wherein said fluorocarbon surfactant foaming agent is a fluorinated aliphatic polymeric ester and is present in said composition in the range of from about 1% to about 12% by weight of epoxy resin therein.
- 18. The composition of claim 14 wherein said composition further comprises a liquid diluent containing one or more aromatic hydrocarbons present in said composition in an amount in the range of from about 25% to about 50% by weight of epoxy resin therein.
- 19. The composition of claim 14 wherein said composition further comprises a plastic fixer selected from the group of N-.beta.-aminoethyl-.GAMMA.-aminopropyl-trimethoxysilane, .GAMMA.-aminopropyltriethoxysilane and .GAMMA.-aminopropyltrimethoxysilane and is present in said composition in an amount in the range of from about 0.01% to about 5% by weight of epoxy resin therein.
- 20. The composition of claim 14 wherein said composition further comprises a hardening agent selected from the group of aliphatic amines, cycloaliphatic amines, imidazoles, tertiary amines, aromatic amines and carboxylic acid anhydrides and is present in said composition in an amount in the range of from about 25% to about 70% by weight of the epoxy resin therein.
- 21. The composition of claim 14 wherein said composition further comprises a filler selected from the group of crystalline silica having a particle size in the range of from about 10 to about 20 microns, barite, calcium carbonate amorphous silica and iron oxide having a particle size in the range of from about 2 to about 4 microns present in said composition in an amount in the range of from about 10% to about 200% by weight of epoxy resin therein.
- 22. An improved hardenable corrosion resistant sealing composition having elasticity and ductility comprising:
- a liquid epoxy resin comprised of the condensation reaction product of epichlorohydrin and bisphenol A;
- a hydrocarbon diluent comprising one or more aromatic hydrocarbons having the formula
- C.sub.6 H.sub.2 (R).sub.4
- wherein R is hydrogen or a straight or branched chain alkyl radical having from 1 to 3 carbon atoms with at least two of the Rs being alkyl radicals, said diluent being present in an amount in the range of from about 25% to about 50% by weight of epoxy resin in said composition;
- a plastic fixer selected from the group of N-.beta.-aminoethyl-.GAMMA.-aminopropyltrimethoxysilane, .GAMMA.-aminopropyltriethoxysilane and .GAMMA.-aminopropyltrimethoxysilane present in an amount in the range of from about 0.01% to about 5% by weight of epoxy resin in said composition;
- a hardening agent selected from the group of aliphatic amines, cycloalpiphatic amines, imidazoles, tertiary amines, aromatic amines and carboxylic acid anhydrides present in an amount in the range of from about 25% to about 70% by weight of the epoxy resin in said composition;
- an effective amount of a fluorocarbon surfactant foaming agent selected from the group of fluorinated alkyl alkoxylates, fluorinated alkyl esters and fluorinated aliphatic polymeric esters to produce a foam; and
- a compressible gas present in an amount sufficient to foam said composition and produce a density in the range of from about 6 to about 16 pounds per gallon.
- 23. The composition of claim 22 wherein said epoxy resin has a molecular weight of about 340, a one gram equivalent of epoxide per about 185 to 192 grams of resin and a viscosity at 25.degree. C. of about 100 to 160 poises.
- 24. The composition of claim 22 wherein said hydrocarbon diluent comprises from about 50% to about 99% of said aromatic hydrocarbons and is present in said composition in an amount of about 27% by weight of epoxy resin therein.
- 25. The composition of claim 22 wherein said plastic fixer is N-.beta.-aminoethyl-.GAMMA.-aminopropyltrimethoxysilane present in said composition in an amount of about 0.65% by weight of epoxy resin therein.
- 26. The composition of claim 22 wherein said hardening agent is 2-ethyl-4-methyl imidazole present in said composition in an amount of about 58% by weight of epoxy resin therein.
- 27. The composition of claim 22 wherein said fluorocarbon surfactant foaming agent comprises a fluorinated aliphatic polymeric ester present in said composition in an amount in the range of from about 1% to about 12% by weight of epoxy resin therein.
- 28. The composition of claim 22 wherein said composition further comprises a filler selected from the group of crystalline silica having a particle size in the range of from about 10 to about 20 microns and iron oxide having a particle size in the range of from about 2 to about 4 microns and is present in said composition in an amount in the range of from about 10% to about 200% by weight of epoxy resin therein.
RELATED U.S. APPLICATION DATA
This is a divisional of application Ser. No. 09/024,596 filed on Feb. 17, 1998, now U.S. Pat. No. 6,006,835.
US Referenced Citations (77)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0 553 566 A1 |
Aug 1993 |
EPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
024596 |
Feb 1998 |
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