IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0939196
(2001-08-24)
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발명자
/ 주소 |
- Drozd, Joseph C.
- Martin, Harold R.
- Chen, Yu-Sen
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출원인 / 주소 |
- Dober Chemical Corp., FleetGuard, Inc.
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대리인 / 주소 |
Stout, Uxa, Buyan & Mullins, LLP
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인용정보 |
피인용 횟수 :
22 인용 특허 :
135 |
초록
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A fuel additive composition comprising a sustained release component and an additive component, the additive component is effective to provide at least one benefit to a fuel when released into the fuel, the sustained release component is (1) a polymeric material, (2) substantially insoluble in the f
A fuel additive composition comprising a sustained release component and an additive component, the additive component is effective to provide at least one benefit to a fuel when released into the fuel, the sustained release component is (1) a polymeric material, (2) substantially insoluble in the fuel, and (3) effective to reduce the rate of release of the additive component into the fuel relative to an identical composition without the sustained release component.
대표청구항
▼
1. A fuel additive composition comprising:a sustained release component and a fuel additive component, the additive component is effective to provide at least one benefit to a fuel when released into the fuel,the sustained release component is (1) substantially insoluble in the fuel, and (2) effecti
1. A fuel additive composition comprising:a sustained release component and a fuel additive component, the additive component is effective to provide at least one benefit to a fuel when released into the fuel,the sustained release component is (1) substantially insoluble in the fuel, and (2) effective to reduce the rate of release of the additive component into the fuel relative to an identical composition without the sustained release component, the sustained release component comprises at least one polymeric material including polymer repeating units from an unsubstituted, aliphatic olefin monomer having 2 to about 12 carbon atoms per molecule. 2. The additive composition of claim 1 wherein the sustained release component is mixed with the additive component. 3. The additive composition of claim 2 wherein the sustained release component is present as a matrix in which the additive component is located. 4. The additive composition of claim 1 wherein the sustained release component coats the additive component. 5. The additive composition of claim 3 which further comprises an additional sustained release component coating the matrix and the additive component. 6. An additive composition comprising:a matrix material and a fuel additive component, the additive component being located in the matrix material and effective, when released into a fuel, to provide at least one benefit to the fuel,the matrix material comprises at least one polymeric material which includes polymer repeating units derived from an olefin component having 2 to about 12 carbon atoms per molecule and is (1) substantially insoluble in the fuel and (2) effective to reduce the rate of release of the additive component into the fuel relative to an identical composition without the matrix material. 7. The additive composition of claim 6 wherein the matrix material is initially a solid in the composition. 8. The additive composition of claim 6 wherein the matrix material is initially in a form selected from the group consisting of a gel and a paste. 9. The additive composition of claim 6 wherein the matrix material comprises more than one polymeric material. 10. The additive composition of claim 6 wherein the polymeric material comprises a polymer of ethylene. 11. The additive composition of claim 6 wherein the polymeric material comprises a copolymer of ethylene and vinyl acetate. 12. The additive composition of claim 6 wherein the polymeric material is at least partially oxidized or at least partially amidized. 13. The additive composition of claim 6 wherein the polymeric material is an oxidized polyethylene wax or an oxidized polypropylene wax. 14. The additive composition of claim 6 wherein the composition has more than one layer, each layer comprises a different mixture of the additive component and the matrix material. 15. An additive composition comprising:a matrix material and a fuel additive component, the additive component being located in the matrix material and effective, when released into a fuel, to provide at least one benefit to the fuel;the matrix material comprises at least one polymeric material and is (1) substantially insoluble in the fuel and (2) effective to reduce the rate of release of the additive component into the fuel relative to an identical composition without the matrix material; anda coating material surrounding at least a portion of the additive component and the matrix material, the coating material being present in an amount effective to reduce the rate of release of the additive component into the fuel relative to an identical additive composition without the coating material. 16. The additive composition of claim 15 wherein the coating material comprises a coating polymeric material. 17. The additive composition of claim 16 wherein the coating polymeric material comprises polyethylene vinyl acetate. 18. The additive composition of claim 15 wherein the matrix material has a different composition than the coating material. 19 . The additive composition of claim 15 wherein the matrix material has the same composition as the coating material. 20. The additive composition of claim 15 wherein the composition further comprises a release enhancer component in an amount effective to increase the release rate of the additive component from the composition relative to an identical composition without the release enhancer component. 21. The additive composition of claim 20 wherein the release enhancer component is selected from the group consisting of wicking materials, surfactants and mixtures thereof. 22. The additive composition of claim 6 further comprising a reinforcement component in an amount effective to increase the structural strength of the composition relative to an identical composition without the reinforcement component. 23. An additive assembly comprising:a housing including a fuel inlet and a fuel outlet; andan additive composition disposed within the housing and including a fuel additive component and a matrix material comprising at least one polymeric material including polymer repeating units derived from an olefin component having 2 to about 12 carbon atoms per molecule, the additive component being located in the matrix material and effective, when released into a fuel, to provide at least one benefit to the fuel, the matrix material is (1) substantially insoluble in the fuel in contact with the additive composition and (2) effective to reduce the rate of release of the additive component into the fuel relative to an identical additive composition without the matrix material. 24. The additive assembly of claim 23 wherein the matrix material is substantially hydrocarbon insoluble. 25. The additive assembly of claim 23 wherein the polymeric material includes polymer repeating units derived from ethylene. 26. The additive assembly of claim 23 wherein the polymeric material comprises a copolymer of ethylene and vinyl acetate. 27. The additive assembly of claim 23 wherein the polymeric material is at least partially oxidized or at least partially amidized. 28. The additive assembly of claim 23 further comprising a coating material surrounding at least a portion of the additive component and the matrix material, the coating material being in an amount effective to reduce the rate of release of the additive component into the fuel relative to an identical additive composition without the coating material. 29. The additive assembly of claim 28 wherein the coating material comprises a coating polymeric material. 30. The additive assembly of claim 29 wherein the coating polymeric material is polyethylene vinyl acetate. 31. The additive assembly of claim 23 wherein the additive composition is present in the housing as a plurality of particles. 32. A method of producing an additive composition for providing a benefit to a fuel comprising the steps of:combining a fuel additive component with a matrix material to form a mixture, the matrix material has a melting point of at least about 82° C. and the combining step at least partially occurs with the matrix material in the molten state the additive component being effective to provide at least one benefit to a fuel when released into the fuel, the matrix material being substantially insoluble in the fuel; andforming one or more discrete units of the mixture, the matrix material comprises at least one polymeric material, the discrete unit or units of the mixture providing a reduced rate of release of the additive component into a fuel relative to an identical unit or units without the matrix material. 33. The method of claim 32 wherein the matrix material is substantially hydrocarbon insoluble. 34. The method of claim 44 which further comprise providing a coating material on the one or more discrete units, the coating material being effective to reduce the rate of release of the additive component into a fuel relative to an identical unit or units without the provided coating material. 35. An addi tive composition comprising:a matrix material and an additive component, the additive component being located in the matrix material and effective, when released into a fuel, to provide at least one benefit to the fuel,the matrix material comprises an aliphatic acid component, and is (1) substantially insoluble in the fuel and (2) effective to reduce the rate of release of the additive component into the fuel relative to an identical composition without the matrix material. 36. The additive composition of claim 35 wherein the aliphatic acid component includes aliphatic acid molecules having about 18 to about 36 carbon atoms. 37. The additive composition of claim 35 wherein the aliphatic acid component includes aliphatic acid molecules having about 28 to about 36 carbon atoms. 38. The additive composition of claim 35 wherein the aliphatic acid component includes a montanic acid. 39. An additive assembly comprising:a housing including a fuel inlet and a fuel outlet; andan additive composition disposed within the housing and including an additive component and a matrix material comprising an aliphatic acid component, the additive component being located in the matrix material and effective, when released into a fuel, to provide at least one benefit to the fuel, the matrix material is (1) substantially insoluble in the fuel in contact with the additive composition and (2) effective to reduce the rate of release of the additive component into the fuel relative to an identical additive composition without the matrix material. 40. The additive composition of claim 39 wherein the aliphatic acid component includes aliphatic acid molecules having about 18 to about 36 carbon atoms. 41. The additive composition of claim 39 wherein the aliphatic acid component includes aliphatic acid molecules having about 28 to about 36 carbon atoms. 42. The additive assembly of claim 39 wherein the aliphatic acid component includes a montanic acid. 43. The additive composition of claim 1 wherein the at least one polymeric material includes polymer repeating units from at least one of ethylene and propylene. 44. The additive composition of claim 1 wherein the at least one polymeric material includes polymer repeating units from ethylene. 45. The method of claim 32 wherein the polymeric material includes polymer repeating units derived from an olefin component having 2 to about 12 carbon atoms per molecule.
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