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EP0482626A2
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Cycloolefin random copolymer composition and uses thereof
Assignee: Mitsui Chemicals Inc
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Filing: 1991-10-24
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Granted: —
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Expires: 2011-10-24
Abstract
Abstract The first and second cycloolefin random copolymer compositions of the present invention contain at least two kinds of cycloolefin random copolymers, particularly the first cycloolefin random copolymer compositions of the invention are characterized by having an intrinsic viscosity of 0.2 to 0.7 and a molecular weight distribution (Mw/Mn) of at least 3, and the second cycloolefin random copolymer compositions of the invention are characterized by having the Cw/Cn ratio of a weight average cycloolefin content (Cw) to a number average cycloolefin content (Cn) of at least 1.04. The third cycloolefin random copolymer compositions of the invention which contain at least three kinds of cycloolefin random copolymers are characterized in that said composition has a softening temperature (TMA) of at least 70°C, and when cycloolefin random copolymer components constituting the composition are taken as S 1 , S 2 ... S; ... S n (n is an integer of at least 3), a softening temperature (TMA) of each component (S;) is taken as Ti (°C), and a weight percentage of each component (S i ) present in the composition is taken as W i (i is an integer of 1 to n), T i and W i satisfy the following formulas (3), (4) and (5), wherein i is an integer of 1 to n-1, and a two-component composition containing the component S i and S i+1 in a ratio of W i : W i+1 has a haze of not more than 7.0%, and the sum total of the components having a softening temperature (TMA) of less than 70°C is more than 10% of the composition.
Inventors
- 👤 Toshihiro Sagane
- 👤 Masayuki Okabe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 06:19
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/34; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0807; C08L23/0823; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08; C08L2205/00; C08L2205/02; C08L2205/03; C08L2205/035
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
303 words
A cycloolefin random copolymer composition containing at least two cycloolefin random copolymers obtained by copolymerization of ethylene and at least one cycloolefin represented by the following formula [I] or [II], said copolymers having a softening temperature (TMA) of at least 70°C, an intrinsic viscosity [η], as measured in decalin at 135°C, of at least 0.01 dl/g, and the Mw/Mn ratio of a weight average molecular weight (Mw) to a number average molecular weight (Mn), both measured by GPC, of not more than 4, and said composition having an intrinsic viscosity [η], as measured in decalin at 135°C, of 0.2 to 0.7 dl/g, and the Mw/Mn ratio of a weight average molecular weight (Mw) to a number average molecular weight (Mn), both measured by GPC, of at least 3; wherein n is 0 or 1, m is 0 or an integer of a positive number, q is 0 or 1, R 1 -R 18 and R a and R b are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom and hydrocarbon groups, R 15- R 18 , linked with one another, may form a monocyclic ring or polycyclic ring which may have a double bond, R 15 and R 16 , or R 17 and R 18 may together form an alkylidene group; wherein r is 0 or an integer of more than 1, s and t are each 0, 1 or 2, R 1 -R 15 are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom, aliphatic hydrocarbon groups, aromatic hydrocarbon groups and alkoxy groups, and the carbon atom having R 5 and R 6 may be bonded to the carbon atom having R 7 or R 9 directly or through an alkylene group of 1-3 carbon atoms.
Claim 2
Dependent Claim
303 words
A cycloolefin random copolymer composition containing at least two cycloolefin random copolymers obtained by copolymerization of ethylene and at least one cycloolefin represented by the following formula [I] or [II], said copolymers having a softening temperature (TMA) of at least 70°C, an intrinsic viscosity [η], as measured in decalin at 135°C, of at least 0.01 dl/g, and the Mw/Mn ratio of a weight average molecular weight (Mw) to a number average molecular weight (Mn), both measured by GPC, of not more than 4, and said composition having an intrinsic viscosity [η], as measured in decalin at 135°C, of 0.2 to 0.7 dl/g, and the Mw/Mn ratio of a weight average molecular weight (Mw) to a number average molecular weight (Mn), both measured by GPC, of at least 3; wherein n is 0 or 1, m is 0 or an integer of a positive number, q is 0 or 1, R 1 -R 18 and R a and R b are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom and hydrocarbon groups, R 15- R 18 , linked with one another, may form a monocyclic ring or polycyclic ring which may have a double bond, R 15 and R 16 , or R 17 and R 18 may together form an alkylidene group; wherein r is 0 or an integer of more than 1, s and t are each 0, 1 or 2, R 1 -R 15 are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom, aliphatic hydrocarbon groups, aromatic hydrocarbon groups and alkoxy groups, and the carbon atom having R 5 and R 6 may be bonded to the carbon atom having R 7 or R 9 directly or through an alkylene group of 1-3 carbon atoms.
Claim 3
Dependent Claim
58 words
The cycloolefin random copolymer composition as claimed in claim 1 wherein of the two or more cycloolefin random copolymers constituting the cycloolefin random copolymer composition, at least one cycloolefin random copolymer has an intrinsic viscosity [η] of at least 0.45 dl/g, and at least one cycloolefin random copolymer has an intrinsic viscosity [η] of less than 0.45 dl/g.
Claim 4
Dependent Claim
288 words
A cycloolefin random copolymer composition containing at least two cycloolefin random copolymers obtained by copolymerization of ethylene and at least one cycloolefin represented by the following formula [I] or [II], said copolymers having a softening temperature (TMA) of at least 70°C, and said composition having the Cw/Cn ratio of a weight average cycloolefin content (Cw) to a number average cycloolefin content (Cn), as defined respectively by the following formulas (1) and (2), of at least 1.04; wherein m is an integer of at least 2, Ci and Wi each represent the cycloolefin content (mol%) in a cycloolefin random copolymer component (i component) and a weight percentage of the i component present in the composition; wherein n is 0 or 1, m is 0 or an integer of a positive number, q is 0 or 1, R 1 -R 18 and R a and R b are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom and hydrocarbon groups, R 15- R 18 , linked with one another, may form a monocyclic ring or polycyclic ring which may have a double bond, R 15 and R 16 , or R17 and R 18 may together form an alkylidene group; wherein r is 0 or an integer of more than 1, s and t are each 0, 1 or 2, R 1 -R 15 are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom, aliphatic hydrocarbon groups, aromatic hydrocarbon groups and alkoxy groups, and the carbon atom having R 5 and R 6 may be bonded to the carbon atom having R 7 or R 9 directly or through an alkylene group of 1-3 carbon atoms.
Claim 5
Dependent Claim
288 words
A cycloolefin random copolymer composition containing at least two cycloolefin random copolymers obtained by copolymerization of ethylene and at least one cycloolefin represented by the following formula [I] or [II], said copolymers having a softening temperature (TMA) of at least 70°C, and said composition having the Cw/Cn ratio of a weight average cycloolefin content (Cw) to a number average cycloolefin content (Cn), as defined respectively by the following formulas (1) and (2), of at least 1.04; wherein m is an integer of at least 2, Ci and Wi each represent the cycloolefin content (mol%) in a cycloolefin random copolymer component (i component) and a weight percentage of the i component present in the composition; wherein n is 0 or 1, m is 0 or an integer of a positive number, q is 0 or 1, R 1 -R 18 and R a and R b are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom and hydrocarbon groups, R 15- R 18 , linked with one another, may form a monocyclic ring or polycyclic ring which may have a double bond, R 15 and R 16 , or R17 and R 18 may together form an alkylidene group; wherein r is 0 or an integer of more than 1, s and t are each 0, 1 or 2, R 1 -R 15 are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom, aliphatic hydrocarbon groups, aromatic hydrocarbon groups and alkoxy groups, and the carbon atom having R 5 and R 6 may be bonded to the carbon atom having R 7 or R 9 directly or through an alkylene group of 1-3 carbon atoms.
Claim 6
Dependent Claim
361 words
A cycloolefin random copolymer composition containing at least three cycloolefin random copolymers obtained by copolymerization of ethylene and at least one cycloolefin represented by the following formula [I] or [II], wherein said composition has a softening temperature (TMA) of at least 70°C, and when cycloolefin random copolymer components constituting the composition are taken as Si, S 2 ... S; ... S n (n is an integer of at least 3), a softening temperature (TMA) of each component (S i ) is taken as Ti (°C), and a weight percentage of each component (S i ) present in the composition is taken as W i (i is an integer of 1 to n), T i and W i satisfy the following formulas (3), (4) and (5), wherein i is an integer of 1 to n-1, and a two-components composition containing the component S i and S i+1 in a ratio of W i : W i+1 has a haze of not more than 7.0%, and the sum total of the components having a softening temperature (TMA) of less than 70°C is more than 10% of the composition; wherein n is 0 or 1, m is 0 or an integer of a positive number, q is 0 or 1, R 1 -R 18 and R a and R b are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom and hydrocarbon groups, R 15- R 18 , linked with one another, may form a monocyclic ring or polycyclic ring which may have a double bond, R 15 and R 16 , or R 17 and R 18 may together form an alkylidene group; wherein r is 0 or an integer of more than 1, s and t are each 0, 1 or 2, R 1 -R 15 are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom, aliphatic hydrocarbon groups, aromatic hydrocarbon groups and alkoxy groups, and the carbon atom having R 5 and R 6 may be bonded to the carbon atom having R 7 or R 9 directly or through an alkylene group of 1-3 carbon atoms.
Claim 7
Dependent Claim
361 words
A cycloolefin random copolymer composition containing at least three cycloolefin random copolymers obtained by copolymerization of ethylene and at least one cycloolefin represented by the following formula [I] or [II], wherein said composition has a softening temperature (TMA) of at least 70°C, and when cycloolefin random copolymer components constituting the composition are taken as Si, S 2 ... S; ... S n (n is an integer of at least 3), a softening temperature (TMA) of each component (S i ) is taken as Ti (°C), and a weight percentage of each component (S i ) present in the composition is taken as W i (i is an integer of 1 to n), T i and W i satisfy the following formulas (3), (4) and (5), wherein i is an integer of 1 to n-1, and a two-components composition containing the component S i and S i+1 in a ratio of W i : W i+1 has a haze of not more than 7.0%, and the sum total of the components having a softening temperature (TMA) of less than 70°C is more than 10% of the composition; wherein n is 0 or 1, m is 0 or an integer of a positive number, q is 0 or 1, R 1 -R 18 and R a and R b are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom and hydrocarbon groups, R 15- R 18 , linked with one another, may form a monocyclic ring or polycyclic ring which may have a double bond, R 15 and R 16 , or R 17 and R 18 may together form an alkylidene group; wherein r is 0 or an integer of more than 1, s and t are each 0, 1 or 2, R 1 -R 15 are each an atom or a group selected from the group consisting of hydrogen atom, halogen atom, aliphatic hydrocarbon groups, aromatic hydrocarbon groups and alkoxy groups, and the carbon atom having R 5 and R 6 may be bonded to the carbon atom having R 7 or R 9 directly or through an alkylene group of 1-3 carbon atoms.
Claim 8
Dependent Claim
21 words
A substrate for information recording medium, which is formed from the composition as claimed in any of claims 1 to 4.
Claim 9
Dependent Claim
18 words
An optical material, which is formed from the composition as claimed in any of claims 1 to 4.
References Cited (Backward Citations)
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