Method of adhesion improvement for silicone compositions

A method is disclosed for adhesion improvement of a room temperature vulcanizable (RTV) silicone composition to substrates. This is accomplished by adding a monoketoester, such as ethylacetoacetate, to an RTV silicone composition which is comprised of an alkoxy ended polydiorganosiloxane, a crosslin...

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Bibliographische Detailangaben
1. Verfasser:	LOWER, LOREN DALE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	A method is disclosed for adhesion improvement of a room temperature vulcanizable (RTV) silicone composition to substrates. This is accomplished by adding a monoketoester, such as ethylacetoacetate, to an RTV silicone composition which is comprised of an alkoxy ended polydiorganosiloxane, a crosslinker having silicon-bonded methoxy or ethoxy group, a filler and a titanate catalyst. Then by applying this composition to a substrate to form intimate contact between the substrate and uncured composition. Thereafter, the composition is exposed to atmospheric moisture for a sufficient time to obtain a cured material. When tested, the bond between the cured material and the substrate surprisingly exhibits cohesive failure.