Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
145 words
A novel random copolymer, characterized in that (A) it is composed of ethylene and a 1,4,5,8-di- methano-1,2,3,4,4a,5,8,8a-octahydronaphthalene represented by the following formula (1) wherein R 1 and R 2 are identical and different and each represents a hydrogen atom, a halogen atom or an alkyl group, or R 1 and R 2 may be bonded to each other to form a trimethylene group or a group represented by the following formula in which R 3 and R 4 are identical or different and each represents a hydrogen atom, a halogen atom or an alkyl group, (B) the mole ratio of polymerized units derived from 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene to polymerized units derived from ethylene is from 3:97 to 95:5, and (C) the 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene is incorporated in the polymer chain as polymerized units represented by the following formula (2) wherein R 1 and R 2 are as defined above.
Claim 2
Dependent Claim
145 words
A novel random copolymer, characterized in that (A) it is composed of ethylene and a 1,4,5,8-di- methano-1,2,3,4,4a,5,8,8a-octahydronaphthalene represented by the following formula (1) wherein R 1 and R 2 are identical and different and each represents a hydrogen atom, a halogen atom or an alkyl group, or R 1 and R 2 may be bonded to each other to form a trimethylene group or a group represented by the following formula in which R 3 and R 4 are identical or different and each represents a hydrogen atom, a halogen atom or an alkyl group, (B) the mole ratio of polymerized units derived from 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene to polymerized units derived from ethylene is from 3:97 to 95:5, and (C) the 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene is incorporated in the polymer chain as polymerized units represented by the following formula (2) wherein R 1 and R 2 are as defined above.
Claim 3
Dependent Claim
22 words
A random copolymer according to claim 1 which has an intrinsic viscosity, measured in decalin at 135°C, of 0.005 to 20 dl/g.
Claim 4
Dependent Claim
26 words
A random copolymer according to claim 1 or 2 wherein in formula (1), at least one of R 1 and R 2 is an alkyl group.
Claim 5
Dependent Claim
106 words
A random copolymer, characterized in that (A) it is composed of at least one 1,4,5,8-di- methano - l,2,3,4,4a,5,8,8a-octahydronaphthalene as defined in claim 1, ethylene and at least one alpha-olefin of at least 3 carbon atoms or cycloolefin, (B) the mole ratio of polymerized units from the 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene to polymerized units from ethylene is from 3:97 to 95:5, (B') the mole ratio of polymerized units from the at least one alpha-olefin or cycloolefin to the polymerized units from the 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene is from 95:5 to 20:80, and (C) the 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene is incorporated in the polymer chain as polymerized units represented by formula (2) as defined in claim 1.
Claim 6
Dependent Claim
22 words
A random copolymer according to claim 4 which has an intrinsic viscosity, measured in decalin at 135°C, of 0.005 to 20 dl/g.
Claim 7
Dependent Claim
23 words
A random copolymer according to claim 4 or 5 wherein at least one of R 1 and R 2 is an alkyl group.
Claim 8
Dependent Claim
63 words
A process for producing a random copolymer as claimed in any one of the preceding claims which comprises copolymerizing ethylene and optionally at least one alpha-olefin of at least 3 carbon atoms or cycloolefin with said 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene in a hydrocarbon medium in the presence of a catalyst formed from a vanadium compound and an organoaluminum compound which are soluble in the hydrocarbon medium.
Claim 9
Dependent Claim
16 words
Shaped articles of a random copolymer as claimed in any one of claims 1 to 6.