JPS6466288A - Guest-host liquid crystal composition - Google Patents

Guest-host liquid crystal composition

Info

Publication number
JPS6466288A
JPS6466288A JP22323087A JP22323087A JPS6466288A JP S6466288 A JPS6466288 A JP S6466288A JP 22323087 A JP22323087 A JP 22323087A JP 22323087 A JP22323087 A JP 22323087A JP S6466288 A JPS6466288 A JP S6466288A
Authority
JP
Japan
Prior art keywords
formula
compound
dyestuff
liquid crystal
crystal composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP22323087A
Other languages
Japanese (ja)
Other versions
JPH0759702B2 (en
Inventor
Masaharu Kaneko
Naonori Nakajima
Mikio Murakami
Tatsuo Masumi
Torahiko Ando
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Kasei Corp
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Kasei Corp
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Kasei Corp, Mitsubishi Electric Corp filed Critical Mitsubishi Kasei Corp
Priority to JP22323087A priority Critical patent/JPH0759702B2/en
Publication of JPS6466288A publication Critical patent/JPS6466288A/en
Publication of JPH0759702B2 publication Critical patent/JPH0759702B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To provide the titled composition having high contrast and quick response, by containing a liquid crystal composition comprising 7 specific kinds of compounds and a mixture comprising 5 specific kinds of dichromatic dyestuffs in a specified ratio. CONSTITUTION:The objective black composition is produced by compounding (A) a liquid crystal composition containing (i) 30-60(wt.)% of a compound of formula I, (ii) 5-40% of a compound of formula II, (iii) 5-30% of a compound of formula III, (iv) 1-20% of a compound of formula IV, (v) 5-20% of a compound of formula V, (vi) 5-10% of a compound of formula VI and (vii) 1-20% of a compound of formula VII (R<1>, R<4>-R<9>, R<12> and R<13> are 2-8C straight chain alkyl; R<2>, R<3>, R<10> and R<11> are 2-5C straight chain alkyl) as a host liquid crystal with (B) >=9% of a dichromatic dyestuff mixture containing (i) 17-23% of a dyestuff of formula VIII, (ii) 7-10% of a dyestuff of formula IX, (iii) 24-30% of a dyestuff of formula X, (iv) 22-27% of a dyestuff of formula XI and (v) 17-21% of a dyestuff of formula XII (R<14>, R<16>-R<20> are H, alkyl, etc.; R<15> is alkyl, etc.).
JP22323087A 1987-09-07 1987-09-07 Guest-host liquid crystal composition Expired - Lifetime JPH0759702B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22323087A JPH0759702B2 (en) 1987-09-07 1987-09-07 Guest-host liquid crystal composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22323087A JPH0759702B2 (en) 1987-09-07 1987-09-07 Guest-host liquid crystal composition

Publications (2)

Publication Number Publication Date
JPS6466288A true JPS6466288A (en) 1989-03-13
JPH0759702B2 JPH0759702B2 (en) 1995-06-28

Family

ID=16794832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22323087A Expired - Lifetime JPH0759702B2 (en) 1987-09-07 1987-09-07 Guest-host liquid crystal composition

Country Status (1)

Country Link
JP (1) JPH0759702B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019533052A (en) * 2016-10-19 2019-11-14 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングＭｅｒｃｋ Ｐａｔｅｎｔ Ｇｅｓｅｌｌｓｃｈａｆｔ ｍｉｔ ｂｅｓｃｈｒａｅｎｋｔｅｒ Ｈａｆｔｕｎｇ Liquid crystal media

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US6690134B1 (en) 2001-01-24 2004-02-10 Irobot Corporation Method and system for robot localization and confinement
US7571511B2 (en) 2002-01-03 2009-08-11 Irobot Corporation Autonomous floor-cleaning robot
US8396592B2 (en) 2001-06-12 2013-03-12 Irobot Corporation Method and system for multi-mode coverage for an autonomous robot
US7429843B2 (en) 2001-06-12 2008-09-30 Irobot Corporation Method and system for multi-mode coverage for an autonomous robot
US8428778B2 (en) 2002-09-13 2013-04-23 Irobot Corporation Navigational control system for a robotic device
US8386081B2 (en) 2002-09-13 2013-02-26 Irobot Corporation Navigational control system for a robotic device
US7332890B2 (en) 2004-01-21 2008-02-19 Irobot Corporation Autonomous robot auto-docking and energy management systems and methods
US7620476B2 (en) 2005-02-18 2009-11-17 Irobot Corporation Autonomous surface cleaning robot for dry cleaning
EP2289384B1 (en) 2005-02-18 2013-07-03 iRobot Corporation Autonomous surface cleaning robot for wet and dry cleaning
US8392021B2 (en) 2005-02-18 2013-03-05 Irobot Corporation Autonomous surface cleaning robot for wet cleaning
EP2816434A3 (en) 2005-12-02 2015-01-28 iRobot Corporation Autonomous coverage robot
KR101099808B1 (en) 2005-12-02 2011-12-27 아이로보트 코퍼레이션 Robot system
ES2334064T3 (en) 2005-12-02 2010-03-04 Irobot Corporation MODULAR ROBOT.
ES2522926T3 (en) 2005-12-02 2014-11-19 Irobot Corporation Autonomous Cover Robot
US20090044370A1 (en) 2006-05-19 2009-02-19 Irobot Corporation Removing debris from cleaning robots
US8417383B2 (en) 2006-05-31 2013-04-09 Irobot Corporation Detecting robot stasis
KR101160393B1 (en) 2007-05-09 2012-06-26 아이로보트 코퍼레이션 Compact autonomous coverage robot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019533052A (en) * 2016-10-19 2019-11-14 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングＭｅｒｃｋ Ｐａｔｅｎｔ Ｇｅｓｅｌｌｓｃｈａｆｔ ｍｉｔ ｂｅｓｃｈｒａｅｎｋｔｅｒ Ｈａｆｔｕｎｇ Liquid crystal media
US11466213B2 (en) 2016-10-19 2022-10-11 Merck Patent Gmbh Liquid-crystalline medium

Also Published As

Publication number Publication date
JPH0759702B2 (en) 1995-06-28

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