IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
UP-0356490
(2006-02-16)
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등록번호 |
US-7816459
(2010-11-08)
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발명자
/ 주소 |
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출원인 / 주소 |
- Chevron Oronite Company LLC
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인용정보 |
피인용 횟수 :
12 인용 특허 :
70 |
초록
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Disclosed is a method for preparing polyolefins containing vinylidine end groups from quasiliving carbocationically terminated polyolefin polymers by contacting the quasiliving carbocationically terminated polymer with quenching agent selected from the group consisting of polypyrrole, polyvinylpyrid
Disclosed is a method for preparing polyolefins containing vinylidine end groups from quasiliving carbocationically terminated polyolefin polymers by contacting the quasiliving carbocationically terminated polymer with quenching agent selected from the group consisting of polypyrrole, polyvinylpyridine, polyphenothiazine, polyoxazine, and polypyrrole-co-thiophene and substituted derivatives thereof.
대표청구항
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What is claimed is: 1. A method for producing a vinylidene terminated polymer comprising: a. providing a quasiliving carbocationically terminated polyolefin polymer, b. contacting the polymer in step a) with at least one quenching agent selected from the group consisting of polypyrrole, poly(2-viny
What is claimed is: 1. A method for producing a vinylidene terminated polymer comprising: a. providing a quasiliving carbocationically terminated polyolefin polymer, b. contacting the polymer in step a) with at least one quenching agent selected from the group consisting of polypyrrole, poly(2-vinylpyridine), polyphenothiazine, polyoxazine, poly(pyrrole-co-furan) and poly(pyrrole-co-thiophene) and substituted derivatives thereof; wherein a vinylidene terminated polymer is formed. 2. The method of claim 1, wherein the quasiliving carbocationically terminated polymer is formed by contacting at least one cationically polymerizable olefin monomer with an initiator, in the presence of a Lewis acid and solvent under quasiliving polymerization reaction conditions. 3. The method of claim 2, wherein the initiator is monofunctional. 4. The method of claim 3, wherein the initiator is selected from the group consisting of 2-chloro-2-phenylpropane; 2-acetyl-2-phenylpropane; 2-propionyl-2-phenylpropane, 2-methoxy-2-phenylpropane, 2-ethoxy-2-phenylpropane, 2-chloro-2,4,4-trimethylpentane, 2-acetyl-2,4,4,-trimethylpentane, 2-propionyl-2,4,4-trimethylpentane, 2-methoxy-2,4,4-trimethylpentane, and 2-ethoxy-2,4,4-trimethylpentane. 5. The method of claim 4, wherein the initiator is 2-chloro-2,4,4-trimethylpentane. 6. The method of claim 2, wherein the initiator is bifunctional. 7. The method of claim 6, wherein the initiator is selected from the group consisting of 1,3-di(2-chloro-2-propyl)benzene, 1,3-di(2-methoxy-2-propyl)benzene, 1,4-di(2-chloro-2-propyl)benzene, 1,4-di(2-methoxy-2-propyl)benzene, and 5-tert-butyl-1,3,-di(2-chloro-2-propyl)benzene. 8. The method of claim 7, wherein the initiator is 5-tert-butyl-1,3,-di(2-chloro-2-propyl)benzene. 9. The method of claim 2, wherein the initiator is multifunctional. 10. The method of claim 9, wherein the initiator is selected from the group consisting 1,3,5-tri(2-chloro-2-propyl)benzene and 1,3,5-tri(2-methoxy-2-propyl)benzene. 11. The method of claim 2, wherein the at least one cationically polymerizable olefin monomer is selected from the group consisting of isobutene, 2-methyl-1-butene, 3-methyl-1-butene, and 4-methyl-1-pentene. 12. The method of claim 11, wherein the at least one cationically polymerizable olefin monomer is isobutylene. 13. The method of claim 2, wherein two different cationically polymerizable olefin monomers are employed. 14. The method of claim 2, wherein the Lewis acid is selected from the group consisting of titanium tetrahalide, boron trihalide aluminum trichloride, tin tetrachloride, zinc chloride, and ethyl aluminum dichloride. 15. The method of claim 14, wherein the Lewis acid is selected from the group consisting of titanium tetrachloride, titanium tetrabromide, and boron trichloride. 16. The method of claim 15, wherein the Lewis acid is titanium tetrachloride. 17. The method of claim 2, wherein the quasiliving polymerization reaction conditions are selected to have a temperature range from between about −130° C. and +10° C. 18. The method of claim 17, wherein the quasiliving polymerization reaction conditions are selected to have a temperature range between about −70° C. and −10° C. 19. The method of claim 18, wherein the quasiliving polymerization reaction conditions are selected to have a temperature range between −60° C. and −20° C. 20. The method of claim 1, wherein the quasiliving carbocationically terminated polyolefin polymer is formed by ionizing a polyolefin chain end in the presence of a Lewis acid and a solvent under quasiliving polymerization reaction conditions. 21. The method of claim 20, wherein the quasiliving carbocationically terminated polyolefin polymer is formed by ionizing a polyolefin containing tert-halide chain ends in the presence of a Lewis acid and a solvent under quasiliving polymerization reaction conditions. 22. The method of claim 20, wherein the quasiliving carbocationically terminated polyolefin polymer is formed by ionizing a polyolefin containing tert-chloride chain ends in the presence of a Lewis acid and a solvent under quasiliving polymerization reaction conditions. 23. The method of claim 1, wherein the quenching agent in step b) is selected from the group consisting of polypyrrole, polyvinylpyridine, poly(pyrrole-co-thiophene) and poly(pyrrole-co-furan). 24. The method of claim 23, wherein the quenching agent in step b) is selected from the group consisting of polypyrrole, poly(pyrrole-co-thiophene) and poly(pyrrole-co-furan). 25. The method of claim 1, wherein the quenching agent in step b) is polypyrrole or substituted polypyrrole. 26. The method of claim 1, wherein the quenching agent-in step b) is a copolymer. 27. The method of claim 1, wherein in the contacting step, the quenching agent in step b) is selected so that it is solid phase. 28. The method of claim 27, wherein the contacting step is performed in a fixed bed reactor or a fluidized bed reactor. 29. The method of claim 2, wherein the quenching agent in step b) is insoluble in the solvent. 30. The method of claim 1, wherein the vinylidene terminated polymer has a molecular weight distribution, Mw/Mn, from about 1.01 to about 3.0. 31. The method of claim 30, wherein the molecular weight distribution, Mw/Mn, from about 1.1 to about 2.0. 32. The method of claim 31, wherein the molecular weight distribution, Mw/Mn, is less than 1.5.
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