Patent US4909204A successfully refreshed from Google Patents.
Patent EP0330345A2 successfully refreshed from Google Patents.
EP0330345A2
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EP
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Process for producing aromatic polymer compounds
Assignee: Panasonic Holdings Corp
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Filing: 1989-02-09
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Granted: —
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Expires: 2009-02-09
Abstract
Abstract This invention relates to a process for producing aromatic polymers having a high degree of polymerization by subjecting halogenated aromatic compounds or combinations of aromatic compounds and polyhalogenated aromatic compounds to a dehydrohalogenation reaction in the presence of a metal halide and thereby effect a polycondensation. The halogenated aromatic compounds, aromatic compound and polyhalogenated aromatic compounds include not only those compounds having benzene nucleus or nuclei, but also compounds of aromatic character such as heterocyclic five-membered compounds. The resulting polymers are particularly useful in the field of electronics.
Inventors
- 👤 Shu Hotta
- 👤 Mamoru Soga
- 👤 Nobuo Sonoda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 01:40
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C08G61/02; C08G61/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
118 words
A process for producing an aromatic polymer compound which comprises subjecting either a halogenated aromatic compound which has an aromatic or heterocyclic five-membered nucleus and at least one active hydrogen atom and at least one halogen atom directly bonded to the nucleus, or a combination of an aromatic compound which has an aromatic or heterocyclic five-membered nucleus and at least two active hydrogen atoms directly bonded to the nucleus and a polyhalogenated aromatic compound which has an aromatic or heterocyclic five-membered nucleus and at least two halogen atoms directly bonded to the nucleus, to a dehydrohalogenation reaction in the presence of a metal halide and threby cause a condensation reaction with the formation of an aromatic polymer product.
Claim 2
Dependent Claim
118 words
A process for producing an aromatic polymer compound which comprises subjecting either a halogenated aromatic compound which has an aromatic or heterocyclic five-membered nucleus and at least one active hydrogen atom and at least one halogen atom directly bonded to the nucleus, or a combination of an aromatic compound which has an aromatic or heterocyclic five-membered nucleus and at least two active hydrogen atoms directly bonded to the nucleus and a polyhalogenated aromatic compound which has an aromatic or heterocyclic five-membered nucleus and at least two halogen atoms directly bonded to the nucleus, to a dehydrohalogenation reaction in the presence of a metal halide and threby cause a condensation reaction with the formation of an aromatic polymer product.
Claim 3
Dependent Claim
28 words
A process according to claim 1, wherein said halogenated aromatic compound is halogenated benzene, biphenyl, naphthalene, anthracene, azulene or indole, with or without substituents other than a halogen.
Claim 4
Dependent Claim
37 words
A process according to claim 1, wherein said halogenated aromatic compound is a halogenated heterocyclic five-membered compound selected from halogenated thiophene, pyrrole, furan, selenophene and terullophene, with or without subsituents other than the at least one halogen.
Claim 5
Dependent Claim
16 words
A process according to claim 3, wherein said halogenated heterocyclic five-membered compound is 2-bromothiophene or 2-bromo3-hexylthiophene.
Claim 6
Dependent Claim
42 words
A process according to claim 3, wherein said halogenated heterocyclic five-membered compound is an α-monohalogeno product of the compound or a halogenated heterocyclic five-membered compound having a long alkyl side chain having from 1 to 30 carbon atoms at the position thereof.
Claim 7
Dependent Claim
19 words
A process according to claim 1, wherein said halogenated aromatic compound is an oligomer of a halogenated aromatic compound.
Claim 8
Dependent Claim
33 words
A process according to claim 1, wherein said aromatic compound is selected from benzene, biphenyl, naphthalene, anthracene, azulene, indole, thiophene, pyrrole, furan, selenophene and terullophene, with or without substituents other than a halogen.
Claim 9
Dependent Claim
43 words
A process according to claim 1, wherein said aromatic compound is a heterocyclic five-membered compound having active hydrogen atoms at the α, α′ positions which is used in combination with a dihalogeno product of a heterocyclic five-membered compound as said polyhalogenated aromatic compound.
Claim 10
Dependent Claim
17 words
A process according to claim 1, wherein said aromatic compound is an oligomer of an aromatic compound.
Claim 11
Dependent Claim
39 words
A process according to claim 1, 7 or 9 wherein said polyhalogenated aromatic compound is a polyhalogeno product of benzene, biphenyl, naphthalene, anthracene, azulene, indole, thiophene, pyrrole, furan, selenophene or terullophene, with or without substituents other than a halogen.
Claim 12
Dependent Claim
19 words
A process according to claim 1, wherein said aromatic compound is thiophene and said polyhalogenated aromatic compound is 2,5-dibromothiophene.
Claim 13
Dependent Claim
24 words
A process according to any one of the preceding claims, wherein said dehydrohalogenation reaction is effected at a temperature of from -80 to 100°C.
Claim 14
Dependent Claim
19 words
A process according to any one of the preceding claims wherein the temperature is not higher than 50° C.
References Cited (Backward Citations)
No citation records indexed.
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