ULTRAVIOLET-CURABLE SILICONE COMPOSITION FOR PRIMARY COATING OF OPTICAL FIBER

PURPOSE:To provide the title composition quick-curable with ultraviolet radiation, capable of giving cured coating films causing no surface bleed due to ultraviolet deterioration with improved heat resistance, comprising two kinds of polyorganosiloxane with each specified composition, a photoreactio...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUSHITA TAKEKI, HAMANISHI KOHEI, KURITA ATSUSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES GLASS INKS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS POLISHES SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PURPOSE:To provide the title composition quick-curable with ultraviolet radiation, capable of giving cured coating films causing no surface bleed due to ultraviolet deterioration with improved heat resistance, comprising two kinds of polyorganosiloxane with each specified composition, a photoreaction initiator, etc., at each specified amount. CONSTITUTION:The objective composition can be obtained by incorporating (A) 100 pts.wt. of a polyorganosiloxane 100-10000cps in viscosity, containing at least one polyorganosiloxane with phenyl group accounting for 17-40mol%, vinyl group 0.05-10mol% and methyl group the rest of the total organic groups, with (B) such an amount of a polyorganosiloxane with phenyl group accounting for 17-40mol%, mercaptoalkyl group 0.05-15mol% and methyl group the rest of the total organic groups as to be 2.0-2.5 in the mercaptoalkyl group per vinyl group in the component A, (C) 0.1-50 pts.wt. of a photoreaction initiator, (D) 0.001-10 pts.wt. of a polymerization inhibitor, (E) 0.001-10 pts.wt. of an antioxidant, and (F) 0.001-10 pts.wt. of a ultraviolet light absorber.