DIFLUORIDE DERIVATIVE AND LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME

• Main Authors: YOKOKOJI, OSAMU, KOH, HIDEMASA, IRISAWA, JUN
• Format: Patent
• Language: English; French; Japanese
• Published: 17.03.1994
• Edition: 5
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ADHESIVES; CHEMISTRY; DYES; HETEROCYCLIC COMPOUNDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; PAINTS; POLISHES

A difluoride derivative represented by the general formula: R -(A -Y )m-A -CF=CF-C=C-A -(Y -A )n-R , wherein A through A represent each trans-1,4-cyclohexylene, 1,4-cyclohexenylene or 1,4-phenylene; m and n represent each 0 or 1; and R and R represent each C1-C10 alkyl, halogen or cyano. The compound is lowly viscous and light-stable, and hence can provide a liquid crystal composition having high response speed. A difluoride derivative represented by the general formula: R1-(A1-Y1)m-A2-CF=CF-C=C-A3-(Y2-A4)n-R2, wherein A1 through A4 represent each trans-1,4-cyclohexylene, 1,4-cyclohexenylene or 1,4-phenylene; m and n represent each 0 or 1; and R1 and R2 represent each C1-C10 alkyl, halogen or cyano. The compound is lowly viscous and light-stable, and hence can provide a liquid crystal composition having high response speed. Dérivé de bifluorure représenté par la formule générale: R1-(A1-Y1)m-A2-CF=CF-C=C-A3-(Y2-A4)n-R2, dans laquelle A1 à A4 représentent chacun trans-1,4-cyclohexylène, 1,4-cyclohexénylène ou 1,4-phénylène; m et n représentent chacun 0 ou 1; et R1 ainsi que R2 représentent chacun alkyle C1-C10, halogène ou cyano. Le composé est faiblement visqueux et inaltérable à la lumière, et permet ainsi d'obtenir une composition à cristaux liquides présentant une vitesse de réaction élevée.