SHEET MATERIAL AND ITS PRODUCTION PROCESS Russian patent published in 1994 - IPC

Abstract RU 2021303 C1

FIELD: mechanical engineering. SUBSTANCE: multi-layer roofing material hardened under the effect of ultraviolet irradiation, for example of day light, has a reinforcing layer of chopped "E" glass fibers and a supporting layer of glass fiber fabric placed on the top of the reinforcing layer surface. The layers are impregnated with the first and second quantities of polymeric composition hardened by means of ultraviolet rays. They are placed between the first and second external protective sheets. EFFECT: more efficient production of roofing material. 2 cl, 2 dwg

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RU 2 021 303 C1

Authors

Ehlliott Tomas Dzhordzh[Gb]

Dates

1994-10-15—Published

1991-04-03—Filed