Vitreous printing by means of a silkscreen process

A enamel-free paste for use especially in ovens at temperatures of up to about 420° C. The paste contains a matrix based upon a silicon (Si) polymer that can be obtained by the hydrolysis and condensation of at least one silane of general formula RxSi(OR')4-x with at least one polysiloxane of g...

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Bibliographische Detailangaben
Hauptverfasser:	SCHMIDMAYER GERHARD, LOSCHNER DETLEV V, KALLEDER AXEL, JORDENS FRANK
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 CORRECTING FLUIDS DYES FILLING PASTES GLASS INKS JOINING GLASS TO GLASS OR OTHER MATERIALS LINING MACHINES METALLURGY MINERAL OR SLAG WOOL MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PRINTING PRINTING MACHINES OR PRESSES STAMPS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A enamel-free paste for use especially in ovens at temperatures of up to about 420° C. The paste contains a matrix based upon a silicon (Si) polymer that can be obtained by the hydrolysis and condensation of at least one silane of general formula RxSi(OR')4-x with at least one polysiloxane of general formula [R2SiO]y, or R3Si-(O-SiR2)y-O-SiR3. The radicals R can independently be alkyl, aryl,arylalkyl, alkylaryl or H; the radicals R' can independently be H, methyl,ethyl, n- or i-propyl, n-, iso-, sec- or tert-butyl; x represents 0 or 1 (for the first silane); x represents 0, 1, 2, 3, or 4 (for each subsequent silane); and y represents a whole number, which is at least 2 and can be approximately infinite. The paste additionally includes a high-boiling organic solvent with a boiling point of 100° C. or above, and a pigment as the solvent, but does not include alcohol with a boiling point of below 100° C.