One of the objects of the present invention is to produce a shaped article of a cured resin having well-balanced heat resistance and toughness by using a plural liquid pack type heat-curable resinous composition of a low liquid viscosity and excellent handling property with good storage stability.
as claimed in the present invention, individual components comprising a polyisocyanate comound (a), a radically polymerizable unsaturated monomer compound bearing no functional group reactive with isocyanate, for example, styrene or a (meth)acrylic acid derivative (b), a polyol compound bearing no radically polymerizable unsaturated bond such as a polyether polyol (c), a radical catalyst (e) and a ring-forming catalyst (d) are separated into 2 liquid packs or 3 liquid packs, and they are mixed on molding, fed into the mold, and reaction-cured in the mold to give a shaped article of a cured resin of excellent heat resistance, toughness and other properties.
本发明的目的之一是通过使用液体粘度低、操作性能优异且储存稳定性好的多液包 型热固化
树脂组合物,生产一种具有均衡的耐热性和韧性的固化
树脂成型品。
如本发明所述,单个组分包括多
异氰酸酯化合物 (a)、不含与
异氰酸酯反应的官能团的可辐射聚合的不饱和单体化合物,例如
苯乙烯或(甲基)
丙烯酸衍
生物 (b)、不含可辐射聚合的不饱和键的多元醇化合物,例如聚醚多元醇 (c)、将自由基催化剂 (e) 和成环催化剂 (d) 分离成 2 液包或 3 液包,在成型时将它们混合,送入模具,并在模具中反应固化,从而得到具有优异耐热性、韧性和其他性能的固化
树脂成型品。