LIQUID CRYSTAL DISPLAY ELEMENT

PURPOSE:To well adhere substrates to each other with an adhesive by chemically treating the part of a polymer film to be adhered as at least one substrate with strong alkali or acid. CONSTITUTION:A polyester film having 100mum thickness is immersed in an aqueous soln. of NaOH and washed in water. It...

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Bibliographische Detailangaben
Hauptverfasser:	MIYASHITA TAKAO, TANNO SEIKICHI, HONJIYOU HIROSHI, SUZUKI HIROSHI, ITOU TADASHI, UMEDA TAKAO, SHIMAZAKI YUZURU, NAKANO FUMIO, IKAWA TATSUO
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY DISPLAYING EDUCATION FREQUENCY-CHANGING LABELS OR NAME-PLATES NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS SIGNS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PURPOSE:To well adhere substrates to each other with an adhesive by chemically treating the part of a polymer film to be adhered as at least one substrate with strong alkali or acid. CONSTITUTION:A polyester film having 100mum thickness is immersed in an aqueous soln. of NaOH and washed in water. It the further immersed in an aqueous soln. of stannous chloride (SnCl), well washed in water and dried. Such two chemically treated polyester films are stuck together with a polyester adhesive, and by curing the adhesive under heating, the films are adhered to each other. The adhesive strength is enhanced in accordance with the rise of the temp. of the NaOH soln. and the increase of the concn. It is preferable to elongate the treatment time, yet about 1min is practically enough. Since only the part to be adhered with the adhesive is chemically treated, the NaOH soln. may be mixed with alumina sol as a thickener and applied to the prescribed part by screen printing.