PROCESS FOR ENCAPSULATING GLASS EDGES WITH AN ELASTIC POLYISOCYANATE ADDITION POLYMERIZATION PRODUCT USING AN EPOXY RESIN CURING SYSTEM AS THE ADHESION- IMPROVING AGENT

PROCESS FOR ENCAPSULATING GLASS EDGES WITH AN ELASTIC POLYISOCYANATE ADDITION POLYMERIZATION PRODUCT USING AN EPOXY RESIN CURING SYSTEM AS THE ADHESION-IMPROVING AGENT The invention is a process for encapsulating glass edges with an elastic polyisocyanate addition polymerization product which compri...

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Hauptverfasser:	HUTCHISON, JOHN, SCHMIDT, HANS U, ROPTE, ECKHARD
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY COMPOSITIONS BASED THEREON DYES GLASS INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS 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 NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS AS ADHESIVES VEHICLES IN GENERAL WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Zusammenfassung:	PROCESS FOR ENCAPSULATING GLASS EDGES WITH AN ELASTIC POLYISOCYANATE ADDITION POLYMERIZATION PRODUCT USING AN EPOXY RESIN CURING SYSTEM AS THE ADHESION-IMPROVING AGENT The invention is a process for encapsulating glass edges with an elastic polyisocyanate addition polymerization product which comprises coating an edge of glass with an adhesion-improving agent comprising an organic epoxy resin and a hardener and thereafter covering the coated edges with a polyurethane, polyurethane-polyurea or polyurea elastomer. The adhesion-improving agent is a two-component system comprising at least one organic epoxy resin and at least one hardener, preferably a polyamine and/or polyamine adduct, optionally dissolved in an organic solvent. A glass plate is positioned in a mold, the mold closed and the cavity between the plate of glass and the mold is injected, using a one-shot RIM process, with a reactive mixture of organic polyisocyanates, higher molecular weight compounds having at least two reactive hydrogen atoms, chain extenders and/or crosslinking agents, catalysts, and optionally auxiliaries and/or additives. The reaction mixture is allowed to cure, and the plate glass is removed.