Patent EP0445755A2 successfully refreshed from Google Patents.
EP0445755A2
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EP
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Norbornene-based polymer, process for production of said polymer, film of said polymer, and process for production of said film
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1991-03-06
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Granted: —
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Expires: 2011-03-06
Abstract
Abstract The present invention provides a norbornene-based polymer having mainly a repeating unit represented by the general formula (I): and having a weight average molecular weight as determined by GPC of at least 2x10⁴. The present invention further provides a process for producing the above norbornene-based polymer which process comprises polymerizing a norbornene-based monomer represented by the general formula (II), in the presence of a catalyst comprising mainly a transition metal compound component containing a transition metal belonging to the Periodic Table Group VB, VIB, VIIB or VIII, and an aluminoxane component. The norbornene-based polymer of the present invention is a novel norbornene-based polymer having a high molecular weight and is excellent in mechanical properties, heat resistance and solubility in an organic solvent, and further transparent. In accordance with the process of the present invention, the novel norbornene-based polymer, can be produced with high activity and high yield. The film made of the above-norbornene-based polymer is excellent in transparency, is not changed in viscoelastic characteristics and electric characteristics to markedly high temperatures, and has excellent heat resistance. Thus the film is suitable for use as a condensor film or an insulative film. In accordance with the process of the present invention, the film having excellent properties can be produced with high ease and high efficiency.
Inventors
- 👤 Hiroshi C/O Idemitsu Kosan Co. Ltd. Maezawa
- 👤 Junichi C/O Idemitsu Kosan Co. Ltd. Matsumoto
- 👤 Hideki C/O Idemitsu Kosan Co. Ltd. Aiura
- 👤 Satoshi C/O Idemitsu Kosan Co. Ltd. Asahi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 20:48
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08; Y; Y10; Y10S; Y10S526/00; Y10S526/943
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
89 words
A norbornene-based polymer having mainly a repeating unit represented by the general formula (I): wherein R¹ to R¹² may be the same or different and are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a substitutent containing a halogen atom, an oxygen atom or a nitrogen atom; R⁵ and R⁷ may combine together to form a ring, and n is an integer of 0 or more, and having a weight average molecular weight of at least 2x10⁴ as determined by gel permeation chromatography.
Claim 2
Dependent Claim
28 words
The norbornene-based polymer as claimed in Claim 1, wherein the norbornene-based polymer has a weight average molecular weight of 2x10⁴ to 1x10⁷ as determined by gel permeation chromatography.
Claim 3
Dependent Claim
28 words
The norbornene-based polymers as claimed in Claim 2, wherein the norbornene-based polymers has a weight average molecular weight of 1x10⁵ to 1x10⁷ as determined by gel permeation chromatography.
Claim 4
Dependent Claim
181 words
A process for producing a norbornene-based polymer having mainly a repeating unit represented by the general formula (I): wherein R¹ to R¹² may be the same or different and are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a substituent containing a halogen atom, an oxygen atom or a nitrogen atom; R⁵ and R⁷ may combine together to form a ring; and n is an integer of 0 or more, which process comprises polymerizing a norbornene-based monomer represented by the general formula (II): wherein R¹ to R¹² may be the same or different and are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a substituent containing a halogen atom, an oxygen atom or a nitrogen atom; R⁵ and R⁷ may combine together to form a ring; and n is an integer of 0 or more, in the presence of a catalyst containing a transition metal compound component containing a transion metal belonging to the Periodic Table Group VB, VIB, VIIB or VIII, and an aluminoxane component as main components.
Claim 5
Dependent Claim
20 words
The process for producing the norbornene-based polymer as claimed in Claim 4, wherein the transition metal is nickel or palladium.
Claim 6
Dependent Claim
27 words
The process for producing the norbornene-based polymer as claimed in Claim 4, wherein the aluminoxane component is a compound obtained by contacting an organoaluminum compound and water.
Claim 7
Dependent Claim
39 words
The process for producing the norbornene-based polymer as claimed in Claim 6, wherein the organoaluminum compound is a compound represented by the general formula: AlR¹⁷₃ wherein R¹⁷ is at least one alkyl group having 1 to 8 carbon atoms.
Claim 8
Dependent Claim
21 words
The process for producing the norbornene-based polymer as claimed in Claim 7, wherein the organoaluminum compound is trimethylaluminum, triethylaluminum or triisobutylaluminum.
Claim 9
Dependent Claim
36 words
The process for producing the norbornene-based polymer as claimed in Claim 4, wherein the molar ratio of aluminum in the aluminoxane component to the transition metal in the transition metal compound component is 1 to 10⁶.
Claim 10
Dependent Claim
184 words
A process for producing a norbornene-based polymer having mainly a repeating unit represented by the general formula (I): wherein R¹ to R¹² may be the same or different and are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a substituent containing a halogen atom, an oxygen atom or a nitrogen atom; R⁵ and R⁷ may combine together to form a ring; and n is an integer of 0 or more, which process comprises polymerizing a norbornene-based monomer represented by the general formula (II): wherein R¹ to R¹² may be the same or different and are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a substituent containing a halogen atom, an oxygen atom or a nitrogen atom; R⁵ and R⁷ may combine together to form a ring; and n is an integer of 0 or more, in the presence of a catalyst containing a transition metal compound component containing a transion metal belonging to the Periodic Table Group VB, VIB, VIIB or VIII, an aluminoxane component, and an organoaluminum compound as main components.
Claim 11
Dependent Claim
189 words
A process for producing a norbornene-based polymer having mainly a repeating unit represented by the general formula (I): wherein R¹ to R¹² may be the same or different and are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a substituent containing a halogen atom, an oxygen atom or a nitrogen atom; R⁵ and R⁷ may combine together to form a ring; and n is an integer of 0 or more, and having a weight average molecular weight of 1x10⁵ to 1x10⁷ as determined by gel permeation chromatography, which process comprises polymerizing a norbornene-based monomer represented by the general formula (II): wherein R¹ to R¹² may be the same or different and are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a substituent containing a halogen atom, an oxygen atom or a nitrogen atom; R⁵ and R⁷ may combine together to form a ring; and n is an integer of 0 or more, in the presence of a catalyst containing a transition metal compound component containing nickel as a transition metal and an aluminoxane component as main components.
Claim 12
Dependent Claim
10 words
A film made of the norbornene-based polymer of Claim 1.
Claim 13
Dependent Claim
17 words
The film as claimed in Claim 12, wherein the thickness of film is 0.5 to 1000 µm.
Claim 14
Dependent Claim
27 words
A process for producing the film of Claim 13 which comprises flow-extending a solution of the norbornene-based polymer in an organic solvent, and evaporating the organic solvent.
Claim 15
Dependent Claim
29 words
The process for producing the film as claimed in Claim 14, wherein the organic solvent is at least one solvent selected from aromatic hydrocarbons, alicyclic hydrocarbons and halogenated hydrocarbons.
Claim 16
Dependent Claim
26 words
The process for producing the film as claimed in Claim 14, the concentration of the norbornene-based polymer in the solution is 0.1 to 20% by weight.
References Cited (Backward Citations)
No citation records indexed.
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