SELF-FOAMING HOT MELT ADHESIVE COMPOSITION AND METHODS OF MAKING AND USING SAME

The present invention relates to self-foaming hot melt adhesive compositions and methods of making and using the same. Self-foaming hot melt adhesive compositions are formed by admixing a dispersion concentrate including a chemical blowing agent and a compatible carrier (liquid or molten) with a mol...

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1. Verfasser:	STUMPHAUZER, WILLIAM C
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS POLISHES USE OF MATERIALS AS ADHESIVES
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creator	STUMPHAUZER, WILLIAM C
description	The present invention relates to self-foaming hot melt adhesive compositions and methods of making and using the same. Self-foaming hot melt adhesive compositions are formed by admixing a dispersion concentrate including a chemical blowing agent and a compatible carrier (liquid or molten) with a molten base hot melt adhesive composition at a temperature below the decomposition temperature of the chemical blowing agent. The resolidified material is processed through a device that heats the material above the decomposition temperature of the chemical agent and cools it below such temperature before being dispensed. The device preferably includes sensors and a controller configured to prevent the material from accumulating an adverse thermal history during processing. La présente invention concerne des compositions adhésives thermofusibles auto-expansives et leurs procédés de préparation et dutilisation. Les compositions adhésives thermofusibles auto-expansives sont formées par mélange dun concentré de type dispersion comprenant un agent dexpansion chimique et un véhicule compatible (liquide ou à létat fondu) avec une composition adhésive thermofusible de base à létat fondu à une température inférieure à la température de décomposition de lagent dexpansion chimique. Le matériau resolidifié est traité par passage dans un dispositif qui chauffe le matériau au-dessus de la température de décomposition de lagent chimique et le refroidit au-dessous de cette température avant distribution. Le dispositif comprend de préférence des capteurs et un contrôleur conçu pour empêcher le matériau de se charger dun historique thermique indésirable au cours du traitement.
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Self-foaming hot melt adhesive compositions are formed by admixing a dispersion concentrate including a chemical blowing agent and a compatible carrier (liquid or molten) with a molten base hot melt adhesive composition at a temperature below the decomposition temperature of the chemical blowing agent. The resolidified material is processed through a device that heats the material above the decomposition temperature of the chemical agent and cools it below such temperature before being dispensed. The device preferably includes sensors and a controller configured to prevent the material from accumulating an adverse thermal history during processing. La présente invention concerne des compositions adhésives thermofusibles auto-expansives et leurs procédés de préparation et dutilisation. Les compositions adhésives thermofusibles auto-expansives sont formées par mélange dun concentré de type dispersion comprenant un agent dexpansion chimique et un véhicule compatible (liquide ou à létat fondu) avec une composition adhésive thermofusible de base à létat fondu à une température inférieure à la température de décomposition de lagent dexpansion chimique. Le matériau resolidifié est traité par passage dans un dispositif qui chauffe le matériau au-dessus de la température de décomposition de lagent chimique et le refroidit au-dessous de cette température avant distribution. 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subjects	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS POLISHES USE OF MATERIALS AS ADHESIVES
title	SELF-FOAMING HOT MELT ADHESIVE COMPOSITION AND METHODS OF MAKING AND USING SAME
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