Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With charge transferring layer of specified composition
Patent
1996-02-28
1998-11-24
Ahmad, Nasser
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
With charge transferring layer of specified composition
25229901, 428212, 428220, C09K 1900
Patent
active
058403760
ABSTRACT:
A process of forming bulk articles of oriented liquid crystalline thermoset material, the material characterized as having an enhanced tensile modulus parallel to orientation of an applied magnetic field of at least 25 percent greater than said material processed in the absence of a magnetic field, by curing a liquid crystalline thermoset precursor within a high strength magnetic field of greater than about 2 Tesla, is provided, together with a resultant bulk article of a liquid crystalline thermoset material, said material processed in a high strength magnetic field whereby said material is characterized as having a tensile modulus parallel to orientation of said field of at least 25 percent greater than said material processed in the absence of a magnetic field.
REFERENCES:
patent: 4786348 (1988-11-01), Luise
patent: 4808149 (1989-02-01), Standley
patent: 5266660 (1993-11-01), Hefner, Jr. et al.
patent: 5266661 (1993-11-01), Earls et al.
patent: 5270404 (1993-12-01), Earls et al.
patent: 5270405 (1993-12-01), Earls et al.
patent: 5270406 (1993-12-01), Earls et al.
patent: 5292831 (1994-03-01), Earls et al.
patent: 5460860 (1995-10-01), Hefner
C. K. Ober et al., "Liquid Crystalline Thermosets As Materials For Microelectronics", Mat. Res. Soc. Symp. Proc., V. 227, 1991, pp. 281-293.
G. G. Barclay et al., "Mechanical and Magnetic Orientation of Liquid Crystalline Epoxy Networks" Proc. ACS Div. Polymene Materials: Science & Engineering, V. 200, pp. 387-391 (1990).
M. F. Gray et al., "Influence of Low Magnetic Fields on Semicrystalline Polymers". Journal of Applied Polymer Science, vol. 28, pp. 3603-3606 (1983).
Roger H. Gerzeski, "Mechanical Property Enhancement of an Epon 828--Teta Neat Epoxy Resin System Via Magnetic Field Coprocessing", International SAMPE Symposium, 1991, pp. 1368-1382.
S. Jahromi et al., "Liquid Crystalline Wpoxide Thermosets. Dynamic Mechanical and Thermal Properties" Macromolecules, 1995, vol. 28, No. 7, pp. 2201-2211.
Charles E. Hoyle et al., "Anisotropic Network Formation by Photopolymerization of Liquid Crystal Monomers in a Low Strength Magnetic Field", Macromolecules, 1994, vol. 27, No. 22, pp. 6581-6588.
G. G. Barclay et al., "Rigid-Rod Thermosets Based on 1,3 5-Triazine-Linked Aromatic Ester Segments" Macromolecules, 1992, vol. 25, No. 11, pp. 2947-2954.
G. G. Barclay et al., "The Mechanical and Magnetic Alignment of Liquid Crystalline Epoxy Thermosets" Journal of Polymer Science, 1992, vol. 30, pp. 1845-1853.
Linda C. Sawyer et al., "The Structure of Thermotropic Copolyesters", Journal of Material Science, 1986, pp. 1897-1913.
Benicewicz Brian C.
Douglas Elliot P.
Smith Mark E.
Ahmad Nasser
Cottrell Bruce H.
The Regents of the University of California
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