Patent ID: 7258760
Filing Date: 2007-08-21
Classification: B29C,B29L,B32B,Y10T

Abstract:
1. A method of forming a honeycomb sandwich composite panel by a resin transfer molding process consisting essentially of: stacking a plurality of thermosetting sealing materials on at least one of sides of a honeycomb; said each of thermosetting sealing materials having an adhesive property, and including one of short fibers of glass and non-woven fabric of glass; stacking a dry fabric on said thermosetting sealing materials; hardening said thermosetting sealing materials by heating to a sufficient temperature and maintaining this temperature for a specified period of time; impregnating the dry fabric with a thermosetting resin; and hardening said thermosetting resin impregnated into said dry fabric by heating said thermosetting resin and said dry fabric to the curing temperature of said thermosetting resin and hot-pressing them for a specified time period.