GB1427390A - Substituted benzoyloxy benzoic acid phenyl esters and nematic liquid crystal compoitions containing them - Google Patents
Substituted benzoyloxy benzoic acid phenyl esters and nematic liquid crystal compoitions containing themInfo
- Publication number
- GB1427390A GB1427390A GB3959173A GB3959173A GB1427390A GB 1427390 A GB1427390 A GB 1427390A GB 3959173 A GB3959173 A GB 3959173A GB 3959173 A GB3959173 A GB 3959173A GB 1427390 A GB1427390 A GB 1427390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkoxy
- alkyl
- liquid crystal
- nematic
- atoms
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/008—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with tri- or tetrahalomethyl compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/15—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
- C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
Abstract
1427390 Liquid crystal compositions MERCK PATENT GmbH 15 Aug 1973 [19 Aug 1972] 39591/73 Heading C4X [Also in Division C2] A modified nematic liquid crystal mixture comprises at least one known nematic compound together with 1 to 35% by wt. of at least one ester of the formula wherein R 1 and R 2 are alkyl or alkoxy radicals which may be substituted by alkoxy radicals, the radicals R 1 and R 2 each containing up to 10 C atoms, X is CN or NO 2 and Y is H or the same as X. Specified known nematic compounds and ionizing and homotropically orienting additives are those of the following respective formulµ X is a halogen atom, and R 3 and R 4 are alkyl, alkoxy or acyloxy containing up to 18 C atoms, Z is R 5 or R 5 is C 6 -C 18 alkyl or C 4 -C 18 alkoxy or acyloxy, R 6 is alkyl, alkoxy or acyloxy containing up to 18 C atoms, and n is 0 or 1. The esters of Formula I are preferably added in such an amount to the known nematic compounds that they form eutectic mixtures therewith. Cholesteric materials may be present in up to 10% by weight. Examples are given in which specific nematic mixtures are prepared. The esters of Formula I generally have negative dielectric anisotropy which may predominate even in a mixture with components of positive anisotropy, and the mixtures are useful in electrooptic dynamic scattering display devices.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722240864 DE2240864C3 (en) | 1972-08-19 | Phenol carboxylic acid esters, their production and their use to influence the electro-optical properties of nematic phases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1427390A true GB1427390A (en) | 1976-03-10 |
Family
ID=5854003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3959173A Expired GB1427390A (en) | 1972-08-19 | 1973-08-15 | Substituted benzoyloxy benzoic acid phenyl esters and nematic liquid crystal compoitions containing them |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS594467B2 (en) |
| AT (1) | AT330858B (en) |
| BE (1) | BE803714A (en) |
| CH (1) | CH582229A5 (en) |
| DD (1) | DD107153A5 (en) |
| FR (1) | FR2196200B1 (en) |
| GB (1) | GB1427390A (en) |
| IL (1) | IL42937A0 (en) |
| IT (1) | IT998364B (en) |
| NL (1) | NL7311312A (en) |
| SU (1) | SU482049A3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5683682A (en) * | 1989-11-15 | 1997-11-04 | Robertet S.A. | Derivatives of aromatic benzoates as inhibitors of esterase-producing micro-organisms |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1068110B (en) * | 1976-08-13 | 1985-03-21 | Montedison Spa | PROCESS FOR THE PREPARATION OF HYDROXIBENZOIC ALDEHYDES 2 |
| FR2419966A1 (en) * | 1978-03-17 | 1979-10-12 | Thomson Csf | DIESTER TYPE LIQUID CRYSTAL WITH A SMECTIC PHASE, AT LOW DIELECTRIC ISOTROPY FREQUENCY, AND DISPLAY DEVICE USING THIS CRYSTAL |
| US4279770A (en) * | 1978-09-20 | 1981-07-21 | Chisso Corporation | Liquid crystal 2,3-dicyano-hydroquinone derivatives |
| JPS5633360U (en) * | 1979-08-22 | 1981-04-01 | ||
| JPS5638378A (en) * | 1979-09-05 | 1981-04-13 | Matsushita Electric Ind Co Ltd | Dynamic scattering type liquid crystal display |
| JPS5841834A (en) * | 1981-09-07 | 1983-03-11 | Sumitomo Chem Co Ltd | Preparation of hydroxybenzaldehyde |
| DE102011108708A1 (en) | 2010-09-25 | 2012-03-29 | Merck Patent Gmbh | Liquid crystal displays and liquid crystal media with homeotropic alignment |
-
1973
- 1973-07-27 CH CH1100373A patent/CH582229A5/xx not_active IP Right Cessation
- 1973-08-09 IL IL42937A patent/IL42937A0/en unknown
- 1973-08-10 AT AT703873A patent/AT330858B/en not_active IP Right Cessation
- 1973-08-14 IT IT27862/73A patent/IT998364B/en active
- 1973-08-15 GB GB3959173A patent/GB1427390A/en not_active Expired
- 1973-08-16 NL NL7311312A patent/NL7311312A/xx not_active Application Discontinuation
- 1973-08-17 FR FR7329982A patent/FR2196200B1/fr not_active Expired
- 1973-08-17 DD DD172959A patent/DD107153A5/xx unknown
- 1973-08-17 BE BE134671A patent/BE803714A/en unknown
- 1973-08-17 SU SU1954406A patent/SU482049A3/en active
- 1973-08-20 JP JP48092570A patent/JPS594467B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5683682A (en) * | 1989-11-15 | 1997-11-04 | Robertet S.A. | Derivatives of aromatic benzoates as inhibitors of esterase-producing micro-organisms |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2196200B1 (en) | 1977-02-25 |
| CH582229A5 (en) | 1976-11-30 |
| DE2240864B2 (en) | 1976-09-30 |
| AT330858B (en) | 1976-07-26 |
| IL42937A0 (en) | 1973-11-28 |
| ATA703873A (en) | 1975-10-15 |
| NL7311312A (en) | 1974-02-21 |
| BE803714A (en) | 1974-02-18 |
| DD107153A5 (en) | 1974-07-12 |
| SU482049A3 (en) | 1975-08-25 |
| IT998364B (en) | 1976-01-20 |
| JPS4958089A (en) | 1974-06-05 |
| DE2240864A1 (en) | 1974-02-28 |
| JPS594467B2 (en) | 1984-01-30 |
| FR2196200A1 (en) | 1974-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |