| 摘要 |
PCT No. PCT/JP95/00081 Sec. 371 Date Jul. 24, 1996 Sec. 102(e) Date Jul. 24, 1996 PCT Filed Jan. 25, 1995 PCT Pub. No. WO95/20593 PCT Pub. Date Aug. 3, 1995+E,crc 1+EE A process for producing a purified organophosphorus alkyl ester compound in which the reaction mixture obtained by reacting a dichlorophosphine derivative with (meth)acrylic acid is esterified with a lower monool, and the resulting reaction mixture is neutralized with an alkali metal hydroxide or alkaline earth metal hydroxide either in a solid form or in the form of an aqueous solution and purified; +E,crc 2+EE a process for producing a purified organophosphorus hydroxyalkyl ester compound or an alkylene glycol solution thereof which comprises subjecting the purified organophosphorus alkyl ester compound obtained by process +E,crc 1+EE to transesterification with an alkylene glycol; +E,crc 3+EE a reactive flame retardant comprising the purified organophosphorus alkyl ester compound obtained by process +E,crc 1+EE ; and +E,crc 4+EE a reactive flame retardant comprising the purified organophosphorus hydroxyalkyl ester compound or alkylene glycol solution obtained by process +E,crc 2+EE .
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