Vacuum bag not requiring disposable breathers

Details Vacuum bag not requiring disposable breathers Vacuum bag not requiring disposable breathers

1996-07-10

1998-09-15

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

By fluid pressure actuated flexible diaphragm

264316, 264571, 425DIG44, B29C 7044

Patent

active

058075933

ABSTRACT:
A process and method for manufacturing fiber reinforced composite structures without trapping volatiles in the resin matrix. Volatiles from the curing cycle are absorbed into a silicone rubber layer,and a gas impermeable barrier layer outside the silicone rubber layer prevents autoclave atmosphere from permeating into the part. The process is to layer the finished ply build-up, with a ply of FEP (fluorinated ethylene propylene), a layer of silicone rubber to absorb the volatiles, and a layer of impermeable elastomer. The layer of fluoroelastomer is bonded to the silicone rubber to form a reusable, impermeable elastomeric vacuum bag, eliminating the need for disposable edge and surface breathers.

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patent: 5370598 (1994-12-01), Corneau, Jr.
patent: 5536767 (1996-07-01), McGuiness et al.

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