The invention relates to peroxide compositions comprising a reactive diluent for the peroxide, wherein the diluent is a component containing one or more vinyl ether group(s) and having a monomeric structure according to formula 1, (A-CH=CH-O)n-R, or being covalently built-in into a suitable resinous compound. In the formula
Arepresents hydrogen or an alkyl group with 1-3 C atoms, and individual A groups may be different
Reither represents an aliphatic group, optionally branched, with 1-20 C atoms, etc.
or represents a polyethylene or polypropylene glycol with 2 to 10 glycol units, etc. and
nis 1, 2, 3 or 4.
The components with one or more vinyl ether group(s) covalently built-in into a suitable resinous compound are obtained by reaction of:
a) a first compound (the HVE-compound) containing at least one hydroxyl group and at least one vinyl ether group, and
b) a second compound (the D/HIC-compound), being an isocyanate, reacting with formation of one or more urethane group(s), and
c) a third compound (the G/P/HP-compound) chosen from the groups of (1) C2-6 glycols, (2) C5-20 polyols having 2-5 hydroxyl groups and (3) hydroxyl terminated polyester compounds, not being alkyd resins, having 1-5 free hydroxyl groups and from 2-50 monomeric ester units (the G/P/HP-compound), or mixtures thereof.
The invention also relates to the preparation of such compositions and to the use of such reactive diluents for peroxides in radically curing of unsaturated polyester resins for structural applications.
本发明涉及包含过氧化物活性稀释剂的过氧化物组合物,其中稀释剂是含有一个或多个
乙烯基醚基团的组分,并具有符合式 1 的单体结构 (A-CH=CH-O)n-R,或共价结合到合适的
树脂化合物中。式中
A代表氢或含有 1-3 个 C 原子的烷基,各 A 基团可以不同
或代表具有 1-20 个 C 原子的脂肪族基团,可选择为支链基团等。
或代表具有 2 至 10 个
乙二醇单元的聚
乙二醇或聚
丙二醇等,以及
n为 1、2、3 或 4。
将一个或多个
乙烯基醚基团共价键合到合适的
树脂化合物中的组分可通过以下反应获得: 1:
a) 含有至少一个羟基和至少一个
乙烯基醚基的第一种化合物(HVE-化合物),和
b) 第二种化合物(D/HIC-化合物),即
异氰酸酯,反应生成一个或多个聚
氨酯基团,以及
c) 第三种化合物(G/P/HP-化合物),选自以下组别:(1) C2-6
乙二醇;(2) 具有 2-5 个羟基的 C5-20 多元醇;(3) 具有 1-5 个游离羟基和 2-50 个单体酯单元(G/P/HP-化合物)的羟基封端聚酯化合物(非醇酸
树脂)或其混合物。
本发明还涉及此类组合物的制备,以及过氧化物活性稀释剂在结构用不饱和聚酯
树脂辐射固化中的应用。