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1. 发明专利

JPH1077310A COBALT-CONTAINING CATALYST SYSTEM 失效
公开(公告)号：JPH1077310A
公开(公告)日：1998-03-24
申请号：JP21030397
申请日：1997-08-05
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： PROBLEM TO BE SOLVED: To obtain the subject catalyst system, capable of polymerizing into cis-1,4-polybutadiene rubber at an extremely rapid rate and properly controlling the molecular weight by utilizing a specific cobalt-based catalyst system. SOLUTION: This catalyst system comprises (A) an organic cobalt compound, (B) a trialkylaluminum compound and (C) hexafluoro-2-propanol. Furthermore, a molar ratio of the component C to the component B is preferably about (1:1) to about (3:1) and e.g. cobalt naphthenate is preferably used as the component A and e.g. trimethylaluminum is preferably used as the component B and e.g. 1,1,1,3,3,3-hexafluoro-2-propanol is preferably used as the component C.

2. 发明专利

JPH11293037A DEACTIVATION OF CATALYST FOR SYNDIOTACTIC 1,2-POLYBUTADIENE 失效
公开(公告)号：JPH11293037A
公开(公告)日：1999-10-26
申请号：JP5428099
申请日：1999-03-02
申请人： GOODYEAR TIRE & RUBBER
发明人： WONG TANG HONG , CASTNER KENNETH FLOYD
IPC分类号： C08F6/02 , C08F136/06 , C08K5/09 , C08L9/00
摘要： PROBLEM TO BE SOLVED: To obtain a stabilized composition by admixing a substituted benzoic acid with a syndiotactic 1,2-polybutadiene thereby deactivating a synthetic catalyst. SOLUTION: A substituted benzoic acid of the formula is employed. In the formula, R represents -OH, -S(=O)H, -OC-R (wherein R is 1-about 12C alkyl); and R , R , R and R each represent H or 1-about 12C alkyl. Salicylic acid and acetylsalicylic acid are preferable. The titled composition is obtained by polymerizing 1,3-butadiene monomer in an aqueous medium in the presence of a catalytic system comprising a transition metal compound, an organic aluminum compound and a compound selected from carbon disulfide, phenyl isothiocyanate and xanthic acid to give an aqueous medium containing a syndiotactic 1,2-polybutadiene and adding thereto about 0.04-1 phr, based on the polymer, of a substituted benzoic acid thereby deactivating the catalyst system.

3. 发明公开

EP0805823A4 VAPOR PHASE SYNTHESIS OF RUBBERY POLYMERS 失效
标题翻译：橡胶聚合物在蒸汽相合成
公开(公告)号：EP0805823A4
公开(公告)日：1998-05-06
申请号：EP96930494
申请日：1996-08-02
申请人： GOODYEAR TIRE & RUBBER
发明人： CALDERON NISSIM , CASTNER KENNETH FLOYD , COLVIN HOWARD ALLEN , MUSE JOEL JR
IPC分类号： B01J8/10 , B01J8/24 , B01J8/36 , C08F2/06 , C08F2/34 , C08F4/64 , C08F4/70 , C08F36/04 , C08F136/04 , C08F136/06 , C08F136/08 , G09F13/28 , G09F21/06
CPC分类号： B01J8/1827 , B01J8/10 , B01J8/24 , B01J8/36 , B01J2208/00256 , B01J2208/00274 , B01J2219/00108 , B01J2219/182 , C08F36/04 , C08F136/04 , C08F136/06 , C08F136/08 , G09F13/28 , G09F21/06 , Y10S526/901 , Y10S526/903 , C08F2/34 , C08F4/7098 , C08F4/6421
摘要： By utilizing the vapor phase polymerisation techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polybutadiene 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 supported catalyst is mixed prior to its introduction into the reaction zone. The supported, preformed catalyst system is introduced into the reaction zone (11) by feeding the catalyst into the reactor via catalyst feed line (27) at point (28) which is in the upper portion of the reaction zone.

4. 发明专利

DE69926159T2 未知
公开(公告)号：DE69926159T2
公开(公告)日：2006-04-20
申请号：DE69926159
申请日：1999-02-09
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： C08K5/103 , C08K5/105 , C08K5/13 , C08K5/37 , C08L21/00
摘要： Various benefits can be attained by utilizing trans-1,4-polybutadiene in tire rubber compounds. For instance, the green strength of tire rubber compounds can be improved by including trans-1,4-polybutadiene therein. The inclusion of trans-1,4-polybutadiene in tire rubber compounds is also beneficial because it is strain crystallizable. However, due to its high melting point, it is normally necessary to heat trans-1,4-polybutadiene in order for it to be processed using conventional mixing equipment. This heating step is typically carried out by storing the trans-1,4-polybutadiene in a "hothouse" for a few days prior to its usage. During this storage period, the polymer typically undergoes undesirable oxidative crosslinking which is caused by residual cobalt catalyst and leads to gelation. In fact, the gelation can render the trans-1,4-polybutadiene unprocessable. This invention is based upon the unexpected finding that certain substituted benzoic acids, such as salicylic acid, thiosalicylic acid and acetylsalicylic acid, will act as metal deactivators in polymers. By utilizing the technique of this invention, residual cobalt and/or other metals, such as nickel, that act as prooxidants in polymers, such as trans-1,4-polybutadiene, can be deactivated. This invention more specifically discloses a stabilized trans-1,4-polybutadiene composition which is comprised of trans-1,4-polybutadiene and a substituted benzoic acid selected from the group consisting of salicylic acid, thiosalicylic acid and acetylsalicylic acid.

5. 发明专利

ES2227038T3 SINTESIS DE TRANS-1,4-POLIBUTADIENO ELASTOMERICO CON ELEVADO NIVEL DE TRANS-1,4. 未知
公开(公告)号：ES2227038T3
公开(公告)日：2005-04-01
申请号：ES01125167
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： Un procedimiento para sintetizar trans-1, 4- polibutadieno elastomérico polimerizando monómero de 1, 3- butadieno en presencia de un sistema catalítico que se caracteriza por estar constituido por un compuesto de organocobalto, un compuesto de organoaluminio, un fenol para- sustituido, y orto-fenil fenol, en donde la relación molar del fenol para-alquil sustituido frente al compuesto de organoaluminio está dentro de la gama de 1, 2:1 a 1, 8:1, y en donde la relación molar del orto-fenil fenol frente al compuesto de organoaluminio está dentro de la gama de 0, 7:1 a 1, 3:1.

6. 发明专利

FR2727684B1 未知
公开(公告)号：FR2727684B1
公开(公告)日：1998-08-07
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.

7. 发明专利

DE69126089T2 未知
公开(公告)号：DE69126089T2
公开(公告)日：1997-10-16
申请号：DE69126089
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.

8. 发明专利

DE3368093D1 AN INJECTION WATER VISCOSIFIER FOR ENHANCED OIL RECOVERY 未知
公开(公告)号：DE3368093D1
公开(公告)日：1987-01-15
申请号：DE3368093
申请日：1983-05-06
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： E21B43/22 , C09K8/588 , C08F220/54

9. 发明专利

ZA832557B MOLECULAR WEIGHT CONTROL OF POLYBUTADIENE 未知
公开(公告)号：ZA832557B
公开(公告)日：1983-12-28
申请号：ZA832557
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

10. 发明专利

NO831672L 未知
公开(公告)号：NO831672L
公开(公告)日：1983-11-15
申请号：NO831672
申请日：1983-05-11
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： E21B43/22 , C09K8/588 , E21B

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