Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – With liberating or forming of particles
Patent
1995-03-09
1996-10-29
Theisen, Mary Lynn
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
With liberating or forming of particles
264DIG69, 425294, 4253051, B29C 3502
Patent
active
055694241
ABSTRACT:
A method and apparatus for recycling waste composite materials. The method includes prechopping cured waste composite materials into manageably sized strips, conditioning the prechopped strips into resin particulate and loose fibers having a length of approximately one-half to one and one-half inches, mixing the resin particulate and loose fibers with an uncured resin, and placing the resultant mixture into a mold having a forming surface contoured to form a composite part. The strips of the composite material are conditioned by running them through a conditioner that includes a high-speed rotating blade. The rotating blade includes a plurality of angled cutting tips that chop up the waste composite material into loose fibers and resin particulate. The resin particulate and loose fibers pass through holes in a cylindrical screen that surrounds the cutting blade and cutting tips.
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