Core material for fiber reinforced plastic and process for its p

Details Core material for fiber reinforced plastic and process for its p Core material for fiber reinforced plastic and process for its p

1982-09-13

1984-11-06

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

156148, 4273898, 428131, 428138, 428219, 428283, 428290, 428297, 428300, 428325, 428402, 428406, 428420, B32B 310

Patent

active

044812418

ABSTRACT:
A core material for a fiber reinforced plastic comprises a glass fiber mat composed of glass fiber bundles and having a bulk density of from 50 to 150 kg/m.sup.3 and a porous material filled in void spaces in the glass fiber mat. The porous material is composed of a mixture of a thermoplastic resin and a filler such as a hollow inorganic filler.
The core material is prepared by impregnating a glass fiber mat composed of elongated glass fiber bundles, with a mixture of the filler and a dispersion of the thermoplastic resin in a dispersing medium and their evaporating the dispersing medium from the impregnated glass fiber mat.

REFERENCES:
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patent: 2794238 (1957-06-01), Dildilian et al.
patent: 2794759 (1957-06-01), Dildilian
patent: 3846164 (1974-11-01), Lagache et al.
patent: 3931441 (1976-01-01), Milewski
patent: 4178406 (1979-12-01), Russell
patent: 4201612 (1980-05-01), Figge et al.

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