An uncured but curable filled coating composition comprises (a) a polyfunctional acrylic-type carboxylic acid ester monomer or its prepolymer, (b) a polymerization initiator capable of curing said monomer or prepolymer (a), and (c) an inorganic solid filler, the composition consisting essentially of
(A) 100 parts by weight of a polyfunctional acrylic-type carboxylic acid ester monomer or prepolymer (a) composed of 0 to 75% by weight of a trifunctional or higher acrylic-type carboxylic acid ester monomer having a molecular weight of 200 to 700 or prepolymer thereof and 25 to 100% by weight of a difunctional acrylic-type carboxylic acid ester monomer having a molecular weight of about 160 to about 400 or prepolymerthereof,
(B) 0.001 to 20 parts by weight of a polymerization initiator (b), and
(C) 5 to 250 parts by weight of an inorganic solid filler (c) having a refractive index of 1.40 to 1.60 and an average first-order particle diameter of at least 1 mµ but less than 1µ.
一种未固化但可固化的填充涂料组合物包括:(a) 多官能团
丙烯酸类
羧酸酯单体或其预聚物,(b) 能够固化所述单体或预聚物 (a) 的聚合
引发剂,以及 (c) 无机固体填料,该组合物主要包括
(A) 100 重量份的多官能
丙烯酸类
羧酸酯单体或预聚物(a),其组成为 0 至 75 重量份的分子量为 200 至 700 的三官能或更高的
丙烯酸类
羧酸酯单体或其预聚物,以及 25 至 100 重量份的分子量约为 160 至 400 的二官能
丙烯酸类
羧酸酯单体或其预聚物、
(B) 0.001 至 20 份(按重量计)聚合
引发剂(b),和
(C) 5 至 250 重量份的无机固体填料 (c),其折射率为 1.40 至 1.60,平均一阶颗粒直径至少为 1 微米但小于 1 微米。