Raveling-preventing agent for glass fiber woven fabric, and glass fiber woven fabric to which the agent is applied
AssigneeNitto Boseki Co., Ltd.
InventorsJunichi Saito, Hirokazu Inoguchi, Keiichi Kato
Life of this patent
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Abstract
A raveling-preventing agent for a glass fiber woven fabric, which contains as essential components a reaction product from an epoxy resin having an epoxy equivalent of 150 to 1,000 and a molecular weight of 500 to 2,000 and a hydroxyl group-containing amine compound, and an isocyanate curing agent. The raveling-preventing agent firmly binds glass fibers together and prevents the raveling of edge-forming warp yarns when applied to sectioned marginal portions of a glass fiber woven fabric. Further it is free from swelling in a solvent used in a thermosetting resin varnish.
Claims16
A raveling-preventing agent for a glass fiber woven fabric, which contains as essential components a reaction product from an epoxy resin having an epoxy equivalent of 150 to 1,000 and a molecular weight of 500 to 2,000 and a hydroxyl group-containing amine compound, and an isocyanate curing agent.
A glass fiber woven fabric obtained by applying a raveling-preventing agent containing as essential components a reaction product from an epoxy resin having an epoxy equivalent of 150 to 1,000 and a molecular weight of 500 to 2,000 and a hydroxyl group-containing amine compound and an isocyanate curing agent to a predetermined width of a glass fiber woven fabric along its marginal portions and curing it, the amount of the agent being 2 to 10% by weight based on an agent-applied portion of the glass fiber woven fabric.
Dependencies are inferred from the claim text.