Stabilizing foam inserts for resin transfer molding

Details Stabilizing foam inserts for resin transfer molding Stabilizing foam inserts for resin transfer molding

1989-08-28

1991-10-29

Epstein, Henry F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Fold at edge

156227, 156245, 264258, 2643285, 428138, 4285428, B29C 4318, B29C 4502

Patent

active

050615424

ABSTRACT:
A preform assembly for use with a resin transfer molding apparatus. The preform assembly includes a dry fabric preform and a thin high density foam insert, the preform being folded about and firmly fastened to said insert to form a preform assembly having a stiffened and stabilized preform edge, wherein the edge aids in the insertion of the preform assembly into a mold cavity or channel of the resin transfer mold apparatus. Methods for making such preform assembly and composite article are also disclosed.

REFERENCES:
patent: 3353315 (1967-11-01), Barker
patent: 4044188 (1977-08-01), Segal
patent: 4051290 (1977-09-01), Jutte et al.
patent: 4080714 (1978-03-01), Emerson
patent: 4177306 (1979-12-01), Schulz et al.
patent: 4369608 (1983-01-01), Miura et al.
patent: 4751135 (1988-06-01), Fenton
patent: 4988469 (1991-01-01), Reavely et al.

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