ULTRA RAPID CURING STRUCTURAL ADHESIVE

A process for adhesively bonding at least two substrates includes the application to the at least two substrates of an uncured adhesive formulation. The uncured adhesive formulation includes at least two curable resin components of epoxy novolac resin, bisphenol A-epichlorohydrin epoxy, or 4,4′-Isop...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Kokkot, Ranjith, Deshpande, Subodh, Chandramohanan, Parvathy Mohan
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON DYES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS AS ADHESIVES WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A process for adhesively bonding at least two substrates includes the application to the at least two substrates of an uncured adhesive formulation. The uncured adhesive formulation includes at least two curable resin components of epoxy novolac resin, bisphenol A-epichlorohydrin epoxy, or 4,4′-Isopropylidenediphenol, oligomeric reaction products with 1-chloro-2,3-epoxypropane in a total amount of at least 60 total weight percent. An epoxy curing agent is also present in the formulation. The uncured adhesive formulation cures at an elevated onset temperature of at least 140° C. to adhesively bonding the at least two substrates. The adhesive formulation is also provided with a cure accelerator. An assembly is provided that includes a first substrate of nylon or carbon fiber filled polymer and a second substrate of nylon or carbon fiber filled polymer. A layer of the cured adhesive formulation is present in simultaneous contact with the first substrate and the second substrate.