EP0058981A2
Expired / Lapsed
EP
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Colorless liquid crystalline compounds
Assignee: Kanto Chemical Co Inc
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Filing: 1982-02-22
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Granted: —
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Expires: 2002-02-22
Abstract
Abstract A colorless liquid crystalline compound having at least one 6-membered ring and non-cyclic end groups in the molecular skeleton, said 6-membered ring containing two or more carbon atoms, at least one of which is directly bonded to a methylene group of a non-cyclic group having an alkoxy group at another end has a wide mesomorphic range. When said colorless liquid crystalline compound is mixed with a liquid crystal composition. the resulting mixture also has an enlarged mesomorphic range and in almost all cases has a reduced viscosity.
Inventors
- 👤 Yoichi Hirai
- 👤 Tsunenori Fujii
- 👤 Kaoru Koto
- 👤 Kenji Suzuki
- 👤 Masahiro Yoshida
- 👤 Hisashi Okawa
- 👤 Teruo Kitamura
- 👤 Hisao Yokokura
- 👤 Yoshiaki Okabe
- 👤 Shintaroo Hattori
- 👤 Akio Mukoh
- 👤 Mikio Sato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 23:58
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/26; C07C; C07C255/00; C07C29/00; C07C29/132; C07C29/136; C07C29/147; C07C31/00; C07C31/13; C07C31/137; C07C43/00; C07C43/02; C07C43/03; C07C43/14; C07C43/164; C07C43/168; C07C43/20; C07C43/21; C07C43/225; C07C43/23; C07C57/00; C07C57/46; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/20; C09K19/2007; C09K19/30; C09K19/3001; C09K19/3003; C09K19/3066; C09K19/3068; C09K19/32; C09K19/321; C09K19/34; C09K19/3402; C09K19/3441; C09K19/345; C09K19/3458; C09K19/3475; C09K2019/3422; C09K2019/3425
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
55 words
A colorless liquid crystalline compound having at least one 6-membered ring in the molecular skelton, said 6-membered ring containing two or more carbon atoms, at least one of said carbon atoms being directly bonded to a methylene group which forms an end group of a non-cyclic group having an alkoxy group at another end. =
Claim 2
Dependent Claim
55 words
A colorless liquid crystalline compound having at least one 6-membered ring in the molecular skelton, said 6-membered ring containing two or more carbon atoms, at least one of said carbon atoms being directly bonded to a methylene group which forms an end group of a non-cyclic group having an alkoxy group at another end. =
Claim 3
Dependent Claim
60 words
A colorless liquid crystalline compound according to Claim 1, wherein the 6-membered ring has two carbon atoms at the para positions each other and said two carbon atoms are individually bonded to substituents, at least one of which is a non-cyclic group having a methylene group bonded to one of said carbon atoms and an alkoxy group at another end.
Claim 4
Dependent Claim
79 words
A colorless liquid crystalline compound according to Claim 1 or 2, wherein the non-cyclic group is one member selected from the group consisting of -(CH 2 O) n C m H 2m+1 , -(CH 2 ) n OC m H 2m+1 , -(CH 2 ) n O(CH 2 ) ℓ OC m H 2m+1 and -CH 2 O(CH 2 ) n OC m H 2m+1 , wherein ℓ, m and n are independently an integer of 1 or more.
Claim 5
Dependent Claim
27 words
A colorless liquid crystalline compound according to Claim 1, 2 or 3, wherein the 6-membered ring is one member selected from the group consisting of - and
Claim 6
Dependent Claim
70 words
A colorless liquid crystalline compound of the formula: or wherein R 1 is a non-cyclic group of the formula: -CH 2 OR 3 or -CH 2 -Y-OR 3 in which Y is a non-cyclic group and R 3 is straight- or branched-chain alkyl group; R 2 is a non-cyclic group; A and B are independently a 6-membered ring of the formula: or and X is a group of the formula:
Claim 7
Dependent Claim
70 words
A colorless liquid crystalline compound of the formula: or wherein R 1 is a non-cyclic group of the formula: -CH 2 OR 3 or -CH 2 -Y-OR 3 in which Y is a non-cyclic group and R 3 is straight- or branched-chain alkyl group; R 2 is a non-cyclic group; A and B are independently a 6-membered ring of the formula: or and X is a group of the formula:
Claim 8
Dependent Claim
82 words
A colorless liquid crystalline compound according to Claim 5, wherein R 1 in the formula (I) or (II) is -(CH 2 O) n C m H 2m+1 , -(CH 2 ) n OC m H 2m+1 , -CH 2 O(CH 2 ) n OC m H 2m+1 or (CH 2 ) n O(CH 2 ) ℓ OC m H 2m+1 , wherein n and ℓ are independently an integer of 1 to 8; and m is an integer of 1 to 12.
Claim 9
Dependent Claim
133 words
A colorless liquid crystalline compound according to Claim 5 or 6, wherein R 2 in the formula (I) or (II) is an alkyl group, an alkoxy group, an acyl group, an acyloxy group, an alkoxycarbonyl group, a cyano group, a nitro group, a halogen group, a fluoroalkyl group, a fluoroalkoxy group or a non-cyclylic group represented by the formula: -O(CH 2 ) n OC m H- 2m+1 , ; -(CH 2 O) n C m H 2m+1 , -(CH 2 ) n OC m H 2m+1 , -(CH 2 ) n O(CH 2 ) ℓ OC m H 2m+1 , or (CH 2 )O(CH 2 ) n OC m H 2m+1 , wherein n and ℓ are independently an integer of 1 to 8; and m is an integer of 1 to 12.
Claim 10
Dependent Claim
42 words
A colorless liquid crystalline compound of the formula: or wherein R 4 and R 5 are independently a straight-chain or branched-chain alkyl group having 12.or less carbon atoms; X is -COO- or -OCO-; and p is an integer of 1 to 8.
Claim 11
Dependent Claim
42 words
A colorless liquid crystalline compound of the formula: or wherein R 4 and R 5 are independently a straight-chain or branched-chain alkyl group having 12.or less carbon atoms; X is -COO- or -OCO-; and p is an integer of 1 to 8.
Claim 12
Dependent Claim
33 words
A colorless liquid crystalline compound of the formula: wherein R 4 and R 5 are independently a straight-chain or branched-chain alkyl group having 12 or less carbon atoms; A' is and B' is
Claim 13
Dependent Claim
33 words
A colorless liquid crystalline compound of the formula: wherein R 4 and R 5 are independently a straight-chain or branched-chain alkyl group having 12 or less carbon atoms; A' is and B' is
Claim 14
Dependent Claim
34 words
A colorless liquid crystalline compound of the formula: wherein R 4 and R 5 are independently a straight-chain or branched-chain alkyl group having 12 or less carbon atoms; A" is or and B" is
Claim 15
Dependent Claim
34 words
A colorless liquid crystalline compound of the formula: wherein R 4 and R 5 are independently a straight-chain or branched-chain alkyl group having 12 or less carbon atoms; A" is or and B" is
Claim 16
Dependent Claim
37 words
A colorless liquid crystalline compound of the formula: wherein R 4 and R 5 are independently a straight-chain or branched-chain alkyl group having 12 or less carbon atoms and p is an integer of 1 to 6.
Claim 17
Dependent Claim
37 words
A colorless liquid crystalline compound of the formula: wherein R 4 and R 5 are independently a straight-chain or branched-chain alkyl group having 12 or less carbon atoms and p is an integer of 1 to 6.
References Cited (Backward Citations)
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