Patent ID: 6506325
Filing Date: 2003-01-14
Classification: B29C

Abstract:
A method of manufacturing a resin impregnated reinforced article comprising the steps of:placing a permeable reinforcing material on a mold; placing a flexible, impervious bag over the reinforcing material and sealing the bag to the mold to form a sealed enclosure containing the reinforcing material; introducing resin into the reinforcing material; drawing a vacuum in the sealed enclosure; exothermically curing the resin; and controlling the temperature of the exothermic curing reaction by use of a fluid in contact with the bag; wherein said controlling step includes flowing the fluid over the bag; wherein the bag is a first bag over which a second bag is placed, a textured layer is interposed between the first and second bags to form channels between the first and second bags, and the fluid is caused to flow through the channels.