Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1996-09-18
1998-11-24
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
249 92, 249 89, 249187, 428 1, 25229901, G02F 11333, G02F 113
Patent
active
058414932
ABSTRACT:
Disclosed is a method for the manufacture of film made of polymer based material that is particularly well suited to open-pore type cross-linked polymers. The disclosed method comprises the following steps: the making of a cell C comprising, between a substrate S.sub.1 and a substrate S.sub.2, a compound comprising a precursor of the polymer P, at least one of the substrates S.sub.1 and/or S.sub.2 being soluble in a solvent .SIGMA..sub.1 and/or a solvent .SIGMA..sub.2, said solvent .SIGMA..sub.1 and/or said solvent .SIGMA..sub.2 being a non-solvent for the polymer P; the polymerization of the polymer P within the cell C; the immersion of the cell C in the solvent .SIGMA..sub.1 and/or the solvent .SIGMA..sub.2 so as to eliminate the substrate S.sub.1 and/or the substrate S.sub.2. Applications: liquid crystal devices, molecular sensors.
REFERENCES:
patent: 5430563 (1995-07-01), Bouteiller et al.
patent: 5528401 (1996-06-01), Narutaki et al.
patent: 5539547 (1996-07-01), Ishii et al.
patent: 5599478 (1997-02-01), Matumoto et al.
"Thomson-CSF"
Ngo Julie
Sikes William L.
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