Fiber reinforced composite materials

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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428290, 428294, 428327, 428332, 428902, B32B 530, B32B 516, B32B 528

Patent

active

057890730

ABSTRACT:
Tough laminated composite material which comprise (A) long reinforcing fibers, (B) a matrix resin mixed with the long reinforcing fibers and (C1) a resin, preferably in the form of fine resin particles, forming a phase separate from said matrix resin which is localized in inter-layer zones, wherein 90% or more of said resin (C1) is localized in inter-layer zones and/or wherein the border length factor in the inter-layer zones is 2.5 or more and prepregs used to form the composite materials.

REFERENCES:
patent: 4863787 (1989-09-01), Gawin
patent: 4957801 (1990-09-01), Maranci et al.
patent: 5028478 (1991-07-01), Odagiri et al.

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