| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to radiation-curable compositions, selected from a group, comprising a coating composition for optical fibres, coating composition suitable for radiation curing on concrete, and coating composition suitable for radiation curing on metal. Composition contains liquid bis(acyl) phosphine of formula (I), where each of groups Ar, Arand Arindependently represents a substituted or unsubstituted aryl group and at least one free-radical polymerisable component. Liquid bis(acyl)phosphine of formula (I) used in radiation-curable composition, in particular, is bis(2,4,6-trimethylbenzoyl)phenylphosphine, wherein radiation-curable composition is used in combination with bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide.EFFECT: technical result is high rate of hardening and good optical transparency and balance of main operational characteristics, including existence in liquid state for radiation-curable compositions.19 cl, 1 tbl, 1 ex(I) |
