PURPOSE: To enable to fully display both the characteristics of 1,2-polybutadiene and of epoxy resin by a method wherein specified glass non-woven fabric, which is impregnated with 1,2-polybutadiene and dried and cured to the C-stage and, after that, further impregnated with epoxy resin and dried and cured to the B-stage, is partially or wholly molded laminated to each other.

CONSTITUTION: Firstly, glass non-woven fabric is impregnated with 1,2- polybutadiene and dried and cured to the C-stage and, after that, further impreg nated with epoxy resin and dried and cured to the B-stage so as to obtain glass non-woven fabric prepreg, the weight ratio of 1,2-polybutadiene to epoxy resin is 10/90W95/5. The resultant prepregs are partially or wholly molded laminated in order to obtain the titled laminated sheet. Normally used epoxy resin is employed as said epoxy resin. Modified 1,2-polybutadiene, the end group of which is modified to hydroxyl group, epoxy group, carboxyl group or the like, is preferable. Radical polymerization agent is used for curing 1,2- polybutadiene. Normally used amine compound, acid compound, phenol resin or the like is used for curing epoxy resin.