PROCESS FOR PRODUCING A STORAGE-STABLE AQUEOUS PRIMER FOR GLASS AND CERAMIC SUBSTRATES

The invention relates to a process for preparing an aqueous primer composition, comprising the steps performed in consecutive order: a) dissolving at least one organotitanate OT in a concentrated acid A preferably while stirring and optionally cooling; b) adding water in an amount that the resulting...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	BAZZO, Antonio
Format:	Patent
Sprache:	eng ; fre ; ger
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 CORRECTING FLUIDS DYES FILLING PASTES GLASS INKS JOINING GLASS TO GLASS OR OTHER MATERIALS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MINERAL OR SLAG WOOL MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING 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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a process for preparing an aqueous primer composition, comprising the steps performed in consecutive order: a) dissolving at least one organotitanate OT in a concentrated acid A preferably while stirring and optionally cooling; b) adding water in an amount that the resulting volume ratio of (organotitanate OT and acid A) to water is between 1 :2 and 1 :8 and/or the resulting pH is between 2 and 5, and waiting, optionally while stirring, until a homogeneous, transparent solution is obtained; c) adding at least one organosilane OS; d) diluting the obtained mixture with additional water, until the resulting solution has a weight content of (organotitanate OT plus acid A plus organosilane OS) of between 1 % and 5% by weight, based on the total composition, and/or the resulting solution has a pH of between 2.5 and 4.5. The process does not require using surfactants or emulsifiers yet yields a highly storage-stable primer composition that is useful for adhesion-promoting applications, for example in automotive assembly, and enables long-lasting adhesive bonds with improved heat stability.