Fiber-base composite material having high tensile strength

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

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20415916, 20415915, 20415922, 20415923, 427 541, 427177, 427386, 428371, 428394, 428395, 428396, 428413, 4284769, 428500, 428522, 428367, 4273899, D04H 158, B32B 2730, B32B 2738

Patent

active

042307660

ABSTRACT:
The fibers constituting the composite material are impregnated with a composition containing at least one unsaturated epoxy resin mixed with at least two ethylenic monounsaturation monomers, at least one ethylenic polyunsaturation monomer, a photoinitiator and an organic peroxide. The composition is prepolymerized by means of ultraviolet rays in a first step and then cross-linked either by ultraviolet rays or a temperature rise in a second step.

REFERENCES:
patent: 3301743 (1967-01-01), Fekete
patent: 3373075 (1968-03-01), Fekete
patent: 3428518 (1969-02-01), Schafer
patent: 3940537 (1976-02-01), Burns
patent: 4026826 (1977-05-01), Yoshida
patent: 4049867 (1977-09-01), Ito
patent: 4055697 (1977-10-01), Schmanski
patent: 4071425 (1978-01-01), Guarino
patent: 4107128 (1978-08-01), Hosoi
patent: 4156035 (1979-02-01), Tsao
Modern Plastics, Mar. 1976, pp. 42 and 43.

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