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21. 发明专利

AU612954B2 SYNTHESIS OF HIGH VINYL POLYBUTADIENE UTILIZING A MOLYBDENUM CATALYST SYSTEM 未知
公开(公告)号：AU612954B2
公开(公告)日：1991-07-18
申请号：AU4090989
申请日：1989-08-30
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD , GLENN KIMBERLY MARIA , BELL ANTHONY JOSEPH
IPC分类号： C08F36/04 , C08F4/60 , C08F4/69 , C08F4/78 , C08F36/06 , C08F136/06 , C08F4/62
摘要： High vinyl polybutadiene rubber is utilized in a variety of applications. For instance, high vinyl polybutadiene is utilized in tire tread rubber compositions because it provides both good traction and rolling resistance. The present invention discloses a technique for synthesizing high vinyl polybutadiene utilizing a molybdenum catalyst system. This molybdenum catalyst system can be utilized in aliphatic solvents with high yields of about 75% being attained. The molybdenum catalyst systems of this invention are comprised of (a) a molybdenum containing compound which is prepared by modifying molybdenum pentachloride, molybdenum trichloride, or molybdenum tetrachloride with an alkyl carboxylic acid or an aryl carboxylic; and (b) an aluminum containing compound which is prepared by modifying a trialkyl aluminum compound with a phenol. The molecular weight of the high vinyl polybutadiene being prepared can be reduced by modifying the trialkyl aluminum compound with an allylphenol, such as 2-allylphenol.

22. 发明专利

AU591425B2 HEXACHLOROCYCLOPENTADIENE END GROUP POLYMERS 未知
公开(公告)号：AU591425B2
公开(公告)日：1989-11-30
申请号：AU7869287
申请日：1987-09-21
申请人： GOODYEAR TIRE & RUBBER
发明人： BELL ANTHONY JOSEPH , HALASA ADEL FARHAN , CASTNER KENNETH FLOYD , BALOGH GEORGE FRANK
IPC分类号： C08F8/18 , C08C19/12 , C08C19/42 , C08C19/44 , C08F8/20 , C08F8/34 , C08F8/24
摘要： Metals from Groups I and II of the periodic table are commonly used to initiate the polymerization of conjugated diolefin monomers into polymers. The polymers formed in such polymerizations are terminated with the metal used to initiate the polymerization and are sometimes referred to as living polymers. Reactive end groups can be affixed to the chain ends of such polymers by utilizing the process of this invention. Such reactive end groups can subsequently be reacted with the backbone of other polymer chains. This results in the formation of a polymer having a reduced number of dangling chain ends. The functionalizing agents which can be utilized in the preparation of such polymers include hexachlorocyclopentadiene, tetraalkylthiuram disulfides, and chlorinated phenyl fulvenes.

23. 发明专利

ZA8302557B MOLECULAR WEIGHT CONTROL OF POLYBUTADIENE 未知
公开(公告)号：ZA8302557B
公开(公告)日：1983-12-28
申请号：ZA8302557
申请日：1983-04-12
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD , KUZMA LEONARD JOSEPH
IPC分类号： C08F4/00 , C08F4/60 , C08F4/70 , C08F36/00 , C08F136/06 , C08F
CPC分类号： C08F136/06 , C08F4/7098

24. 发明专利

DE60104382T2 未知
公开(公告)号：DE60104382T2
公开(公告)日：2005-08-04
申请号：DE60104382
申请日：2001-10-23
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： C08F4/602 , C08F4/70 , C08F36/00 , C08F136/06
摘要： This invention is based upon the unexpected discovery that elastomeric trans-1,4-polybutadiene can be made by utilizing a catalyst system that is comprised of an organocobalt compound, an organoaluminum compound, a para-alkyl substituted phenol, and ortho-phenyl phenol wherein the molar ratio of the para-substituted phenol to the organoaluminum compound is within the range of about 1.2:1 to about 1.8:1, and wherein the molar ratio of the ortho-phenyl phenol to the organoaluminum compound is within the range of about 0.7:1 to about 1.3:1. Accordingly, the elastomeric trans-1,4-polybutadiene made by the process of this invention does not need to be heated, such as in a hot-house, before being used in making rubber stocks. This invention more specifically discloses a process for synthesizing elastomeric trans-1-4-polybutadiene by polymerizing 1,3-butadiene monomer in the presence of a catalyst system that is comprised of an organocobalt compound, an organoaluminum compound, a para-alkyl substituted phenol, and ortho-phenyl phenol, wherein the molar ratio of the para-substituted phenol to the organoaluminum compound is within the range of about 1.2:1 to about 1.8:1, and wherein the molar ratio of the ortho-phenyl phenol to the organoaluminum compound is within the range of about 0.7:1 to about 1.3:1.

25. 发明专利

DE69501530D1 未知
公开(公告)号：DE69501530D1
公开(公告)日：1998-03-05
申请号：DE69501530
申请日：1995-08-03
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： C08F2/06 , C08F2/04 , C08F2/38 , C08F2/44 , C08F4/70 , C08F36/06 , C08F136/06
摘要： Synthesis of trans-1,4-polybutadiene (TPBD) comprises polymerising 1,3-butadiene monomer under soln polymerisation conditions in the presence of: (A) a mol wt regulator comprising a sulphoxide cpd(s) selected from dialkyl sulphoxides, diaryl sulphoxides and dialkaryl sulphoxides; and (B) a catalyst system comprising (a) an organocobalt cpd, (b) an organoaluminium cpd of formula (I), and (c) a p-alkyl substd phenol. AlR1R2R3 (I) R1=alkyl, aryl, alkaryl, arylalkyl, alkoxy or H; and R2, R3=alkyl, aryl, alkaryl or arylalkyl. Also claimed is a continuous process for mfg TPBD, comprising: (1) continuously charging 1,3-butadiene monomer, (a), (b), (c), (A) and an organic solvent into a reaction zone; (2) allowing the monomer to polymerise in the reaction zone; and (3) continuously withdrawing TPBD from the reaction zone.

26. 发明专利

ES2103763T3 未知
公开(公告)号：ES2103763T3
公开(公告)日：1997-10-01
申请号：ES91117431
申请日：1991-10-12
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： C08F4/60 , C08F4/70 , C08F36/06 , C08F136/06
摘要： Trans-1,4-polybutadiene is a thermoplastic resin by virtue of its high level of crystallinity. Because trans-1,4-polybutadiene contains many double bonds in its backbone, it can be blended and cocured with rubbers. Even though trans-1,4-polybutadiene is a thermoplastic resin, it becomes elastomeric when cured alone or when cocured with one or more rubbers. By utilizing the catalyst system and techniques of this invention, trans-1,4-polybutadiene can be synthesized continuously to a high level of conversion with only minimal amounts of gel formation. This invention specifically relates to a process for synthesizing trans-1,4-polybutadiene in a continuous process which comprises continuously charging 1,3-butadiene monomer, an organocobalt compound, an organoaluminum compound, a para-substituted phenol, carbon disulfide, and an organic solvent into a reaction zone; allowing the 1,3-butadiene monomer to polymerize in said reaction zone to form the trans-1,4-polybutadiene; and continuously withdrawing the trans-1,4-polybutadiene from said reaction zone. It is highly preferred for the para-alkyl substituted phenol utilized in this process to contain from about 12 to about 26 carbon atoms.

27. 发明专利

ZA967081B Vapor phase synthesis of rubbery polymers. 未知
公开(公告)号：ZA967081B
公开(公告)日：1997-02-24
申请号：ZA967081
申请日：1996-08-20
申请人： GOODYEAR TIRE & RUBBER
发明人： CALDERON NISSIM , COLVIN HOWARD ALLEN , CASTNER KENNETH FLOYD , MUSE JR JOEL
IPC分类号： C08F20060101 , C08F

28. 发明专利

FR2727684A1 未知
公开(公告)号：FR2727684A1
公开(公告)日：1996-06-07
申请号：FR9513099
申请日：1995-11-06
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： C08F2/06 , C08F4/60 , C08F4/70 , C08F36/06 , C08F136/06 , C08F4/42
摘要： Cis-1,4-polybutadiene can be synthesized by polymerizing 1,3-butadiene monomer with a three component nickel catalyst system containing (a) an organonickel compound, (b) an organoaluminum compound, and (c) a fluorine containing compound. However, the molecular weight of the cis-1,4-polybutadiene prepared is typically too high to be utilized as a non-oil extended rubber. This invention is based upon the discovery that para-styrenated diphenylamine acts to reduce the molecular weight and to improve the processability of cis-1,4-polybutadiene prepared with such nickel based catalyst systems. The use of para-styrenated diphenylamine as a modifier in such polymerizations does not change the microstructure of the cis-1,4-polybutadiene produced. Accordingly, the present invention specifically discloses a process for producing cis-1,4-polybutadiene having a reduced molecular weight and improved processability which comprises polymerizing 1,3-butadiene in the presence of (a) an organonickel compound, (b) an organoaluminum compound, (c) a fluorine containing compound, and (d) para-styrenated diphenylamine; wherein the organoaluminum compound and the fluorine containing compound are brought together in the presence of the para-styrenated diphenylamine. Since para-styrenated diphenylamine is an excellent antidegradant, it also provides the rubber synthesized in its presence with antioxidant protection.

29. 发明专利

DE69110799T2 未知
公开(公告)号：DE69110799T2
公开(公告)日：1996-01-11
申请号：DE69110799
申请日：1991-08-26
申请人： GOODYEAR TIRE & RUBBER
发明人： GEISER JOSEPH FRANK , PARKER DANE KENTON , OHIO US , BAUER RICHARD GEORGE , CASTNER KENNETH FLOYD
IPC分类号： C07F11/00 , C08C19/06 , C08F8/08 , C08G59/34
摘要： The present invention relates to a process for the preparation of epoxidized synthetic cis-1,4-polyisoprene. The process involves reacting the synthetic cis-1,4-polyisoprene in a C5-C7 aliphatic hydrocarbon with tertiary butyl hydroperoxide in the presence of a molybdenum catalyst at a reaction temperature ranging from about 20 DEG C to about 100 DEG C. The molybdenum catalyst is prepared by reacting together under a N2 atmosphere molybdenum pentachloride with a carboxylic acid of the formula: CH3(CH2)nCOOH wherein n is an integer ranging from 8 to 28. The molar ratio of molybdenum pentachloride to the carboxylic acid ranges from about 1:1 to 1:3.

30. 发明专利

MX9101539A 未知
公开(公告)号：MX9101539A
公开(公告)日：1994-06-30
申请号：MX9101539
申请日：1991-10-11
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： C08F4/60 , C08F4/70 , C08F36/06 , C08F136/06 , C08F4/602
摘要： Trans-1,4-polybutadiene is a thermoplastic resin by virtue of its high level of crystallinity. Because trans-1,4-polybutadiene contains many double bonds in its backbone, it can be blended and cocured with rubbers. Even though trans-1,4-polybutadiene is a thermoplastic resin, it becomes elastomeric when cured alone or when cocured with one or more rubbers. By utilizing the catalyst system and techniques of this invention, trans-1,4-polybutadiene can be synthesized continuously to a high level of conversion with only minimal amounts of gel formation. This invention specifically relates to a process for synthesizing trans-1,4-polybutadiene in a continuous process which comprises continuously charging 1,3-butadiene monomer, an organocobalt compound, an organoaluminum compound, a para-substituted phenol, carbon disulfide, and an organic solvent into a reaction zone; allowing the 1,3-butadiene monomer to polymerize in said reaction zone to form the trans-1,4-polybutadiene; and continuously withdrawing the trans-1,4-polybutadiene from said reaction zone. It is highly preferred for the para-alkyl substituted phenol utilized in this process to contain from about 12 to about 26 carbon atoms.

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