[특허]Vapor phase synthesis of cis-1, 4-Polyisoprene

[미국특허] Vapor phase synthesis of cis-1, 4-Polyisoprene 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08F-002/34 C08F-013/606 C08F-013/608
출원번호	US-0850314 (1997-05-02)
발명자 / 주소	Calderon Nissim Castner Kenneth Floyd Colvin Howard Allen Muse Jr. Joel
출원인 / 주소	The Goodyear Tire & Rubber Company
대리인 / 주소	Rockhill
인용정보	피인용 횟수 : 36 인용 특허 : 6

초록 ▼

By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and controllable molecular weight can be easily and practically prepared without utilizing a solvent. The subject invention more specifically discloses a method for vapor phase polymerizing isoprene into cis-1,4-polyisoprene in a process comprising the steps of:

대표청구항 ▼

[ What is claimed is:] [1.] A method for vapor phase polymerizing isoprene into cis-1,4-polyisoprene in a process comprising the steps of:(1) charging into a reaction zone said isoprene and a preformed catalyst system which is made by reacting an organoaluminum compound with titanium tetrachloride in the presence of at least one ether; wherein the isoprene is maintained in the vapor phase in said reaction zone by a suitable combination of temperature and pressure and wherein the catalyst system is suspended on an inert solid support;(2) allowing said isoprene to polymerize into cis-1,4-polyisoprene at a temperature within the range of about 0.degree. C. to about 100.degree. C., wherein said polymerization is conducted in the presence of at least one diarylamine; and(3) withdrawing said cis-1,4-polyisoprene from said reaction zone. [2.] A method for vapor phase polymerizing isoprene into cis-1,4-polyisoprene in a process comprising the steps of:(1) charging into a reaction zone said isoprene and a preformed catalyst system which is made by reacting an organoaluminum compound with titanium tetrachloride in the presence of at least one ether; wherein the isoprene is maintained in the vapor phase in said reaction zone by a suitable combination of temperature and pressure wherein said reaction zone is in a fluidized bed reactor and wherein said polymerization is conducted in the presence of at least one diarylamine;(2) allowing said isoprene to polymerize into cis-1,4-polyisoprene at a temperature within the range of about 0.degree. C. to about 100.degree. C.; and(3) withdrawing said cis-1,4-polyisoprene from said reaction zone.

이 특허에 인용된 특허 (6) 인용/피인용 타임라인 분석

Throckmorton Morford C. (Akron OH) Saltman William M. (Akron OH), Catalyst composition comprising an organoaluminum compound/an organonickel compound/a hydrogen fluoride complex compound.
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Bernier Robert J. N. (Flemington NJ) Boysen Robert L. (Lebanon NJ) Brown Robert C. (Danbury CT) Scarola Leonard S. (Union NJ) Williams Gary H. (Flemington NJ), Gas phase polymerization process.
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Brady ; III Robert C. (Morristown NJ) Karol Frederick J. (Belle Mead NJ) Lynn Timothy R. (Hackettstown NJ) Jorgensen Robert J. (Belle Mead NJ) Kao Sun-Chueh (Belle Mead NJ) Wasserman Eric P. (Hopewel, Gas phase polymerization reactions utilizing soluble unsupported catalysts.
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Markle ; Richard A. ; Sinclair ; Richard G., Non-aqueous dispersion polymerization of conjugated diolefins.
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Throckmorton Morford C. (Akron OH), Process for nonaqueous dispersion polymerization of butadiene in the presence of polymeric dispersing agents.
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Calderon Nissim (Akron OH) Castner Kenneth Floyd (Uniontown OH) Colvin Howard Allen (Tallmadge OH) Muse ; Jr. Joel (Hudson OH), Vapor phase synthesis of rubbery polymers.
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이 특허를 인용한 특허 (36) 인용/피인용 타임라인 분석

Merrill, James T., Dehydrogenation and polymerization process.
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Hickman, Paul L., Method and apparatus for remote interactive exercise and health equipment.
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McAuliffe, Joseph C.; Paramonov, Sergey; Rodewald, Stephan; Sanford, Karl J., Polymerization of isoprene from renewable resources.
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McAuliffe, Joseph C.; Paramonov, Sergey; Rodewald, Stephan; Sanford, Karl J., Polymerization of isoprene from renewable resources.
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Feher, Frank J.; Whited, Gregory M.; Chotani, Gopal K.; Valle, Fernando; Fioresi, Carol; Sanford, Karl J.; McAuliffe, Joseph C.; Cervin, Marguerite; Puhala, Aaron S.; Miasnikov, Andrei; Aldor, Ilana S., Polymers of isoprene from renewable resources.
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Feher, Frank J.; Whited, Gregory M.; Chotani, Gopal K.; Valle, Fernando; Fioresi, Carol; Sanford, Karl J.; McAuliffe, Joseph; Cervin, Marguerite; Puhala, Aaron S.; Miasnikov, Andrei; Aldor, Ilana S., Polymers of isoprene from renewable resources.
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Matsushita, Junko; Kaita, Shojiro; Tamaki, Satoru, Rubber composition and tire containing rubber composition.
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[미국특허] Vapor phase synthesis of cis-1, 4-Polyisoprene 원문보기