Rigidized resinous foam core sandwich structure

Details Rigidized resinous foam core sandwich structure Rigidized resinous foam core sandwich structure

1979-04-16

1980-04-01

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

156148, 264321, 428102, 428313, 428314, B32B 326

Patent

active

041962516

ABSTRACT:
An improved rigidized resinous foam core sandwich structure is formed by the following method:
Threading a length of high tensile strength fiber through the fiber glass sheets placed contiguous the opposite longitudinal faces of a flexible open-celled foam sheet and through the foam sheet in a manner to provide a continuous series of fiber segments which interconnect the fiber glass sheets;
Impregnating the flexible open-celled foam sheet and the fiber glass sheets with a settable resin containing a curing agent; and
Molding the foam core sandwich into the desired shape and holding it in place while the resin cures.

REFERENCES:
patent: 2692219 (1954-10-01), Slayter et al.
patent: 3193438 (1965-07-01), Schafer
patent: 3269887 (1966-08-01), Windecker
patent: 3451885 (1969-06-01), Klein
patent: 3534852 (1970-10-01), Posner
patent: 3655471 (1972-04-01), Healy et al.
patent: 3944704 (1976-03-01), Dirks

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