发明授权
US4214026A Sheet molding material 失效
板材成型材料

Sheet molding material
摘要:
A sheet molding material comprising (1) an interlayer containing a photopolymerizable resin and a photocuring agent for the photopolymerizable resin, and (2) a surface layer of a thermosetting resin containing a heat curing agent for the thermosetting resin on both surfaces of the interlayer (1); and a process for the production of the sheet molding material.
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