EP0106779A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Microencapsulated aqueous polymerization catalyst
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1983-09-07
•
Granted: —
•
Expires: 2003-09-07
Abstract
Abstract The present invention discloses an aqueous polymerization medium comprising (1) a catalyst composition which contains (a) an organometallic compound and (b) a transition metal compound wherein said catalyst composition is microencapsulated in a polyene product; and (2) water. This invention also discloses an aqueous polymerization medium comprising (1) a catalyst composition which is prepared by dissolving in an inert organic solvent containing at least one polyene (a) a transition metal compound, and (b) an organometallic compound; and (2) water. This aqueous polymerization medium is very useful in the polymerization of unsaturated hydrocarbon monomers. It is of greatest value in the polymerization of conjugated diolefin monomers into stereo-regulated polymers. This invention reveals a very useful process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene in an aqueous medium comprising polymerizing 1,3-butadiene in said aqueous medium in the presence of (1) a catalyst composition microencapsulated in a polyene product which contains (a) at least one cobalt compound selected from the group consisting of (i) ß-diketone complexes of cobalt, (ii) ß-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX n , wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AIR3, wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms; and (2) carbon disulfide.
Inventors
- 👤 John Joseph Barbour
- 👤 Anthony Joseph Bell
- 👤 Ken Weikart Donbar
- 👤 James Neil Henderson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 17:30
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F4/00; C08F4/02; B; B01; B01J; B01J33/00; C08F136/00; C08F136/02; C08F136/04; C08F136/06; C08F4/42; C08F4/44; C08F4/52
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
35 words
An aqueous polymerization medium characterized by: (1) a catalyst composition which contains (a) an organometallic compound and (b) a transition metal compound wherein said catalyst composition is microencapsulated in a polyene product; and (2) water.
Claim 2
Dependent Claim
35 words
An aqueous polymerization medium characterized by: (1) a catalyst composition which contains (a) an organometallic compound and (b) a transition metal compound wherein said catalyst composition is microencapsulated in a polyene product; and (2) water.
Claim 3
Dependent Claim
38 words
An aqueous polymerization medium characterized by: (1) a catalyst composition which is prepared by dissolving in an inert organic solvent containing at least one polyene (a) a transition metal compound, and (b) an organometallic compound; and (2) water.
Claim 4
Dependent Claim
38 words
An aqueous polymerization medium characterized by: (1) a catalyst composition which is prepared by dissolving in an inert organic solvent containing at least one polyene (a) a transition metal compound, and (b) an organometallic compound; and (2) water.
Claim 5
Dependent Claim
147 words
A process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene in an aqueous medium characterized by polymerizing 1,3-butadiene in said aqueous medium in the presence of (1) a catalyst composition which contains (a) at least one cobalt compound selected from the group consisting of (i) β-diketone complexes of cobalt, (ii) β-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX, wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AIR3 wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms, wherein said catalyst composition is microencapsulated in a polyene product; and (2) carbon disulfide.
Claim 6
Dependent Claim
147 words
A process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene in an aqueous medium characterized by polymerizing 1,3-butadiene in said aqueous medium in the presence of (1) a catalyst composition which contains (a) at least one cobalt compound selected from the group consisting of (i) β-diketone complexes of cobalt, (ii) β-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX, wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AIR3 wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms, wherein said catalyst composition is microencapsulated in a polyene product; and (2) carbon disulfide.
Claim 7
Dependent Claim
154 words
A process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene in an aqueous medium characterized by polymerizing 1,3-butadiene in said aqueous medium in the presence of (1) a catalyst component solution which is prepared by dissolving in an inert organic solvent containing at least one polyene (a) at least one cobalt compound selected from the group consisting of (i) B-diketone complexes of cobalt, (ii) β-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX n , wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AlR 3 wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms; and (2) carbon disulfide.
Claim 8
Dependent Claim
154 words
A process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene in an aqueous medium characterized by polymerizing 1,3-butadiene in said aqueous medium in the presence of (1) a catalyst component solution which is prepared by dissolving in an inert organic solvent containing at least one polyene (a) at least one cobalt compound selected from the group consisting of (i) B-diketone complexes of cobalt, (ii) β-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX n , wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AlR 3 wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms; and (2) carbon disulfide.
Claim 9
Dependent Claim
158 words
A process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene in an aqueous medium characterized by polymerizing 1,3-butadiene in said aqueous medium, distributing throughout said aqueous medium containing 1,3-butadiene, a catalyst composition which contains (a) at least one cobalt compound selected from the group consisting of (i) β-diketone complexes of cobalt, (ii) β-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX n , wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AlR 3 wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms wherein said catalyst composition is microencapsulated in a polyene product; followed by the distribution of carbon disulfide throughout said medium.
Claim 10
Dependent Claim
158 words
A process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene in an aqueous medium characterized by polymerizing 1,3-butadiene in said aqueous medium, distributing throughout said aqueous medium containing 1,3-butadiene, a catalyst composition which contains (a) at least one cobalt compound selected from the group consisting of (i) β-diketone complexes of cobalt, (ii) β-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX n , wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AlR 3 wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms wherein said catalyst composition is microencapsulated in a polyene product; followed by the distribution of carbon disulfide throughout said medium.
Claim 11
Dependent Claim
162 words
A process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene in an aqueous medium characterized by polymerizing 1,3-butadiene in said aqueous medium by distributing throughout said aqueous medium containing said 1,3-butadiene, a catalyst component solution which is prepared by dissolving in an inert organic solvent containing at least one polyene (a) at least one cobalt compound selected from the group consisting of (i) β-diketone complexes of cobalt, (ii) β-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX, wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AlR 3 wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms; followed by the distribution of carbon disulfide throughout said medium.
Claim 12
Dependent Claim
162 words
A process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene in an aqueous medium characterized by polymerizing 1,3-butadiene in said aqueous medium by distributing throughout said aqueous medium containing said 1,3-butadiene, a catalyst component solution which is prepared by dissolving in an inert organic solvent containing at least one polyene (a) at least one cobalt compound selected from the group consisting of (i) β-diketone complexes of cobalt, (ii) β-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX, wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AlR 3 wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms; followed by the distribution of carbon disulfide throughout said medium.
Claim 13
Dependent Claim
184 words
A process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene, characterized by the steps of: (A) preparing a catalyst component solution by dissolving, in an inert organic solvent containing 1,3-butadiene, (a) at least one cobalt compound selected from the group consisting of (i) 6-diketone complexes of cobalt, (ii) a-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX n , wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AlR 3 wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms; (B) preparing a reaction mixture by mixing said catalyst component solution with a 1,3-butadiene/water mixture containing desired amounts of said 1,3-butadiene; (C) preparing a polymerization mixture by mixing carbon disulfide throughout said reaction mixture; and (D) polymerizing said 1,3-butadiene in said polymerization mixture into polybutadiene while agitating said polymerization mixture.
Claim 14
Dependent Claim
184 words
A process for producing polybutadiene composed essentially of syndiotactic 1,2-polybutadiene, characterized by the steps of: (A) preparing a catalyst component solution by dissolving, in an inert organic solvent containing 1,3-butadiene, (a) at least one cobalt compound selected from the group consisting of (i) 6-diketone complexes of cobalt, (ii) a-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms, and (iv) complexes of halogenated cobalt compounds of the formula CoX n , wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, and (b) at least one organoaluminum compound of the formula AlR 3 wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms; (B) preparing a reaction mixture by mixing said catalyst component solution with a 1,3-butadiene/water mixture containing desired amounts of said 1,3-butadiene; (C) preparing a polymerization mixture by mixing carbon disulfide throughout said reaction mixture; and (D) polymerizing said 1,3-butadiene in said polymerization mixture into polybutadiene while agitating said polymerization mixture.
Claim 15
Dependent Claim
47 words
A process as specified in claim 7 characterized in that said catalyst component solution is prepared by first dissolving said cobalt compound into said inert organic solvent containing 1,3-butadiene and secondly, dissolving said organoaluminum compound into said inert organic solvent containing said 1,3-butadiene and said cobalt compound.
Claim 16
Dependent Claim
34 words
An aqueous polymerization medium as specified in claim 1 characterized in that said polyene product is a product of at least one polyene selected from the group consisting of butadiene, 1,3-pentadiene, isoprene, and myrcene.
Claim 17
Dependent Claim
34 words
A process as specified in claim 3 or 5 characterized in that said polyene product is a product of at least one polyene selected from the group consisting of butadiene, 1,3-pentadiene, isoprene, and myrcene.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.