BINDER FOR HEAT-RESISTANT FIBER NONWOVEN FABRIC, HEAT-RESISTANT FIBER NONWOVEN FABRIC AND ITS PRODUCTION

摘要

PURPOSE:To obtain the subject binder, composed of a hydrolyzate condensate of methyltrimethoxylilane, etc., with an acid and water, capable of withstanding high temperatures and intense heat, having flexibility without deteriorating strength and suitable for uses, such as electrical insulation. CONSTITUTION:The objective binder which is a hydrolyzate condensate composed of one or a mixture of two or more selected from methyl(or ethyl) trimethoxysilane and methyl(or ethyl)triethoxysilane, and acid and water. Furthermore, a heat-resistant fiber nonwoven fabric is preferably coated or impregnated with the aforementioned binder without aging to afford a heat-resistant fiber nonwoven fabric.