Process for Producing Cyclic olefin Random Copolymer
AssigneeMitsui Chemicals, Inc.
InventorsToshitaka Kosaka, Takeshi Suzuki, Tomohiro Yamaguchi
Life of this patent
Estimating the term…
Abstract
A process for producing a cyclic olefin random copolymer by copolymerizing ethylene with a specific cyclic olefin in the presence of a polymerization catalyst containing a transition metal catalyst component and a co-catalyst component, wherein in the process for producing a cyclic olefin random copolymer, at least one component of the transition metal catalyst component and the co-catalyst component is brought into contact with the cyclic olefin, and then brought into contact with the ethylene.
Claims10
A process for producing a cyclic olefin random copolymer by copolymerizing:
- (a) ethylene;
- with
- (b) at least one cyclic olefin selected from the group consisting of unsaturated monomers each represented by following general formula (1) or (2):
- wherein n is 0 or 1;
- m is 0 or a positive integer;
- q is 0 or 1, where if q is 0, the bonds are bound to each other to form a 5-membered ring, and if q is 1, Ra and Rb are each independently a hydrogen atom, a halogen atom, or a hydrocarbon group;
- and R1 to R18 are each independently a hydrogen atom, a halogen atom, or a hydrocarbon group, where the halogen atom in R1 to R18 and Ra and Rb is a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom;
- wherein p and q are each 0 or a positive integer;
- m and n are each 0, 1, or 2;
- and R1 to R19 are each independently a hydrogen atom, a halogen atom, a hydrocarbon group, or an alkoxy group,
- in the presence of a polymerization catalyst containing a transition metal catalyst component and a co-catalyst component,
- wherein in the process for producing a cyclic olefin random copolymer, at least one of the transition metal catalyst component and the co-catalyst component is brought into contact with the cyclic olefin (b), and then brought into contact with the ethylene (a).
A method for initiating polymerization of cyclic olefin random copolymer in copolymerizing:
- (a) ethylene;
- with
- (b) at least one cyclic olefin selected from the group consisting of unsaturated monomers each represented by following general formula (1) or (2):
- wherein n is 0 or 1;
- m is 0 or a positive integer;
- q is 0 or 1, where if q is 0, the bonds are bound to each other to form a 5-membered ring, and if q is 1, Ra and Rb are each independently a hydrogen atom, a halogen atom, or a hydrocarbon group;
- and R1 to R18 are each independently a hydrogen atom, a halogen atom, or a hydrocarbon group, where the halogen atom in R1 to R18 and Ra and Rb is a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom;
- wherein p and q are each 0 or a positive integer;
- m and n are each 0, 1, or 2;
- and R1 to R19 are each independently a hydrogen atom, a halogen atom, a hydrocarbon group, or an alkoxy group,
- in the presence of a polymerization catalyst containing a transition metal catalyst component and a co-catalyst component,
- wherein in the method for initiating polymerization of cyclic olefin random copolymer, the polymerization catalyst containing a transition metal catalyst component and a co-catalyst component is brought into contact with the cyclic olefin (b) first, and then brought into contact with the ethylene (b).
Dependencies are inferred from the claim text.