Fiber reinforced composite materials having resin practice inter

Details Fiber reinforced composite materials having resin practice inter Fiber reinforced composite materials having resin practice inter

1987-12-24

1991-07-02

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428290, 428294, 428302, 428327, 4284231, 4284235, 4284735, 4284744, 428480, B32B 516, B32B 530

Patent

active

050284789

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 prepegs used to form the composite materials.

REFERENCES:
patent: 3472730 (1969-10-01), Frigstad
patent: 3616143 (1971-10-01), Langlois
patent: 3616196 (1971-10-01), Sun
patent: 3686069 (1972-08-01), Winkler
patent: 4004061 (1977-01-01), Creighton et al.
patent: 4496415 (1985-01-01), Sprengling
patent: 4539253 (1985-09-01), Hirschbuehler et al.
patent: 4563386 (1986-01-01), Schwartz
patent: 4604319 (1986-08-01), Evans et al.
patent: 4649077 (1987-03-01), Lauchenauer
patent: 4713283 (1987-12-01), Cogswell et al.
patent: 4863787 (1989-09-01), Gawin
Dow et al., NASA Technical Paper 2826, pp. 1-40 (Jul. 1988).

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