Abstract:
The present invention relates to an unsaturated polyester resin or vinyl ester resin composition suitable for UV curing of thick objects, wherein the composition comprises: a. 30-69 % of unsaturated polyester and/or vinyl ester resin, b. 30-70 % of reactive diluent, c. 0.01-2 % of at least one photoinitiator, d. 0.01-10 % of at least one azo compound, the total amount of (a), (b), (c) and (d) is 100 wt.%.
Abstract:
The present invention relates to structural, radically curable resin compositions suitable for (re)lining containing a. 30-70 wt.% of a resin characterized by (i) a molecular weight M n between 500 and 3000 and (ii) an acid value between 0 and 30 mg KOH/g resin, and wherein at least 80 % of the total amount of resin is vinyl ester resin, b. 30-70 wt.% of at least one reactive diluent, characterized in that at least 25% of the reactive diluent is a difunctional diluent having a molecular weight M n between 200 and 500 and the optional monofunctional diluent having a molecular weight Mn between 100 and 200, c. 0.00001-5 wt.% initiator, d. 0.00001-5 wt.% inhibitor further characterized in that the average molecular weight per reactive unsaturation (WPU) of the components (a) and (b) is equal or greater than 190 Dalton and that the amount of styrene in the resin composition is less than 5 wt.% (calculated as wt.% of the total weight of the components (a), (b), (c) and (d)).
Abstract translation:本发明涉及适用于(再)衬里的结构的自由基固化树脂组合物,其含有a。 30-70重量%的树脂,其特征在于(i)500至3000之间的分子量M n n N和(ii)0至30mg KOH / g树脂之间的酸值,并且其中在 树脂总量的至少80%是乙烯基酯树脂,b。 30-70重量%的至少一种反应性稀释剂,其特征在于至少25%的反应性稀释剂是分子量为200-500的二官能稀释剂和任选的单官能稀释剂 分子量Mn在100和200之间,c。 0.00001-5重量%引发剂,d。 0.00001-5重量%的抑制剂进一步的特征在于,组分(a)和(b)的每个反应性不饱和度(WPU)的平均分子量等于或大于190道尔顿,并且树脂组合物中苯乙烯的量较少 (以(a),(b),(c)和(d))的总重量的重量%计算。