| 摘要 |
PURPOSE:To provide a composition containing a polyene and a polythiol having >=2 mercapto groups, having remarkably excellent durability and adhesivity, and curable rapidly by electron radiation. CONSTITUTION:The objective composition can be produced by mixing (A) the polyene of formula I and/or formula II (R2 and R7 are 1-3C alkylene or substituted alkylene; R1, R3-R6, and R8-R10 are alkyl, substituted alkyl, H, F, Cl, aryl, substituted aryl, alkoxy or substituted alkoxy), e.g. allyl ester of maleic acid or fumaric acid uniformly with (B) a thiol having >=2 mercapto groups, or preferably the compound of formula III (R11-R16 are 1-4C alkylene or substituted alkylene) when high heat-resistance is to be achieved. The chemical equivalent ratio of the carboncarbon double bond of the component A to the mercapto group of the polythiol is selected to 1/2-10/1, preferably 1/1. The obtained composition is cured by irradiating with electron radiation. |
