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EP0412485A2
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Polymeric liquid-crystal composition and polymeric liquid-crystal device
Assignee: Canon Inc
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Filing: 1990-08-06
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Granted: —
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Expires: 2010-08-06
Abstract
Abstract The present invention provides a polymeric liquid-crystal compound having a repeating unit represented by Formula (I) , wherein U represents a polymer main chain; V represents -(CH 2 ) m- , -((CH 2 ) 2 -O) m - or -(CH 2 ) n -((CH 2 ) 2 -O) p -, one or more of methylene hydrogen atoms of which may be substituted with an alkyl group, a halogen atom, a cyano group, an amino group or a carbonyl group, and m, n and p each represents an integer of 0 to 30; W represents a single bond, -0-, -OCO-, -COO-, -CONR 1 -, -CO- or -NR 1 , where R 1 represents a hydrogen atom or an alkyl group; X represents two or more rings of a substituted or unsubstituted aliphatic ring or aromatic ring of benzene ring, heteroaromatic ring or condensed ring, which rings are bonded through a single bond, -0-, -OCO-, -COO-, -(CH 2 )q-, -N = N-, -(CH = CH)q-, -CH = N-, -(C=C)q-, -CONR 1 -, -(CO)q-, or -NR 1 -, where q represents an integer of 1 to 10; Y represents a substituted or unsubstituted alkyl group; and the mark * represents an asymmetric carbon atom.
Inventors
- 👤 Koiichi C/O Canon Kabushiki Kaisha Sato
- 👤 Kazuo C/O Canon Kabushiki Kaisha Yoshinaga
- 👤 Yomishi C/O Canon Kabushiki Kaisha Toshida
- 👤 Takeo C/O Canon Kabushiki Kaisha Eguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 10:14
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/30; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/385; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/3833; C09K19/3842; C09K19/3852; C09K19/3857; C09K19/40; C09K19/406; C09K19/408
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
197 words
A polymeric liquid-crystal compound having a repeating unit represented by Formula (I) wherein U represents a polymer main chain; V represents -(CH 2 ) m -, -((CH 2 ) 2 -O) m - or -(CH 2 ) n -((CH 2 ) 2 -O) p -, one or more of methylene hydrogen atoms of which may be substituted with an alkyl group, a halogen atom, a cyano group, an amino group or a carbonyl group, and m, n and p each represents an integer of 0 to 30; W represents a single bond, -0-, -OCO-, -COO-, -CONR 1- , -CO- or -NR 1 , where R 1 represents a hydrogen atom or an alkyl group; X represents a two or more rings of a substituted or unsubstituted aliphatic ring or aromatic ring of benzene ring, heteroaromatic ring or condensed ring, which rings are bonded through a single bond, -0-, -OCO-, -COO-, -(CH 2 ) q -, -N=N-, -(CH=CH) q -, -CH=N-, -(C≡C) q -, -CONR 1- , -(CO)q- or -NR 1- , where q represents an integer of 1 to 10; Y represents a substituted or unsubstituted alkyl group; and the mark * represents an asymmetric carbon atom.
Claim 2
Dependent Claim
197 words
A polymeric liquid-crystal compound having a repeating unit represented by Formula (I) wherein U represents a polymer main chain; V represents -(CH 2 ) m -, -((CH 2 ) 2 -O) m - or -(CH 2 ) n -((CH 2 ) 2 -O) p -, one or more of methylene hydrogen atoms of which may be substituted with an alkyl group, a halogen atom, a cyano group, an amino group or a carbonyl group, and m, n and p each represents an integer of 0 to 30; W represents a single bond, -0-, -OCO-, -COO-, -CONR 1- , -CO- or -NR 1 , where R 1 represents a hydrogen atom or an alkyl group; X represents a two or more rings of a substituted or unsubstituted aliphatic ring or aromatic ring of benzene ring, heteroaromatic ring or condensed ring, which rings are bonded through a single bond, -0-, -OCO-, -COO-, -(CH 2 ) q -, -N=N-, -(CH=CH) q -, -CH=N-, -(C≡C) q -, -CONR 1- , -(CO)q- or -NR 1- , where q represents an integer of 1 to 10; Y represents a substituted or unsubstituted alkyl group; and the mark * represents an asymmetric carbon atom.
Claim 3
Dependent Claim
35 words
The polymeric liquid-crystal compound according to Claim 1, wherein said U is selected from the group consisting of the following: where A represents an integer of 1 to 30, where Ph represents a phenyl group.
Claim 4
Dependent Claim
20 words
The polymeric liquid-crystal compound according to Claim 1, wherein said X is selected from the group consisting of the following:
Claim 5
Dependent Claim
18 words
The polymeric liquid-crystal compound according to Claim 1, wherein said U is where Ph represents a phenyl group.
Claim 6
Dependent Claim
19 words
The polymeric liquid-crystal compound according to Claim 1, wherein said V is -((CH 2 ) 2 -O) m- .
Claim 7
Dependent Claim
19 words
The polymeric liquid-crystal compound according to Claim 1, wherein said m is an integer of from 4 to 12.
Claim 8
Dependent Claim
19 words
The polymeric liquid-crystal compound according to Claim 1, which has an average molecular weight of from 2,000 to 1,000,000.
Claim 9
Dependent Claim
19 words
The polymeric liquid-crystal compound according to Claim 1, which has an average molecular weight of from 4,000 to 500,000.
Claim 10
Dependent Claim
18 words
A polymeric liquid-crystal copolymer compound having the repeating unit represented by Formula (I) as described in Claim 1.
Claim 11
Dependent Claim
74 words
The polymeric liquid-crystal copolymer compound according to Claim 9, which has the repeating unit represented by Formula (I) as described in Claim 1 and the repeating unit selected from the group consisting of the following: wherein R3 represents a hydrogen atom, an alkyl group, a phenyl group or a halogen atom, m represents an integer of 0 to 30, and R 4 represents an alkyl group, n represents an interger of 1 to 3.
Claim 12
Dependent Claim
35 words
A polymeric liquid-crystal composition comprising at least one of the polymeric liquid-crystal compound as described in Claim 1, and at least one of other polymeric compound, low-molecular compound, polymeric liquid-crystal compound and low-molecular liquid-crystal compound.
Claim 13
Dependent Claim
26 words
The polymeric liquid-crystal composition according to Claim 11, wherein said polymeric liquid-crystal compound is contained in an amount of not less than 5 % by weight.
Claim 14
Dependent Claim
26 words
The polymeric liquid-crystal composition according to Claim 11, wherein said polymeric liquid-crystal compound is contained in an amount of not less than 10 % by weight.
Claim 15
Dependent Claim
28 words
The polymeric liquid-crystal composition according to Claim 11, which comprises at least one of the polymeric liquid-crystal compound as described in Claim 1, and other polymeric liquid-crystal compound.
Claim 16
Dependent Claim
258 words
The polymeric liquid-crystal composition according to Claim 14, wherein said other polymeric liquid-crystal compound is at least one of a polymeric liquid-crystal compound having the repeating unit represented by Formula (II) wherein U represents a polymer main chain; V represents -(CH 2 ) m- , -((CH 2 ) 2 -O) m - or -(CH 2 ) n -((CH 2 ) 2 -O) p -, one or more of methylene hydrogen atoms of which may be substituted with an alkyl group, a halogen atom, a cyano group, an amino group or a carbonyl group, and m, n and p each represent an integer of 0 to 30; W represents a single bond, -0-, -OCO-, -COO-, -CONR 1- , -CO- or -NR 1 , where R 1 represents a hydrogen atom or an alkyl group; X represents two or more rings of a substituted or unsubstituted aliphatic ring or aromatic ring of benzene ring, heteroaromatic ring or condensed ring, which rings are bonded through a single bond, -O-, -OCO-, -COO-, -(CH 2 )q-, -N = N-, -(CH = C H )q-, -CH = N -, -(C=C)q-, -CONR I- , --(CO)q- or -NR 1- , where q represents an integer of 1 to 10; Y represents -(CH 2 ) r- , -0(CH 2 ) r- , -C0 2 (CH 2 ) r - or -OCO-, where r represents an integer of 1 to 3; Z represents -R 2 or -COR 2 , where R 2 represents a substituted or unsubstituted alkyl group; and the mark * represents an asymmetric carbon atom.
Claim 17
Dependent Claim
14 words
A polymeric liquid-crystal device comprising the polymeric liquid-crystal compound as described in Claim 1.
Claim 18
Dependent Claim
14 words
A polymeric liquid-crystal device comprising the polymeric liquid-crystal compound as described in Claim 4.
Claim 19
Dependent Claim
14 words
A polymeric liquid-crystal device comprising the polymeric liquid-crystal composition as described in Claim 11.
Claim 20
Dependent Claim
14 words
A polymeric liquid-crystal device comprising the polymeric liquid-crystal composition as described in Claim 15.
Claim 21
Dependent Claim
26 words
A polymeric liquid-crystal device comprising a polymeric liquid-crystal layer comprising the polymeric liquid-crystal compound as described in Claim 1 between a pair of substrates having electrodes.
Claim 22
Dependent Claim
26 words
A polymeric liquid-crystal device comprising a polymeric liquid-crystal layer comprising the polymeric liquid-crystal compound as described in Claim 4 between a pair of substrates having electrodes.
Claim 23
Dependent Claim
26 words
A polymeric liquid-crystal device comprising a polymeric liquid-crystal layer comprising the polymeric liquid-crystal composition as described in Claim 11 between a pair of substrates having electrodes.
Claim 24
Dependent Claim
26 words
A polymeric liquid-crystal device comprising a polymeric liquid-crystal layer comprising the polymeric liquid-crystal composition as described in Claim 15 between a pair of substrates having electrodes.
References Cited (Backward Citations)
No citation records indexed.
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