Patent ID: 6455639
Filing Date: 2002-09-24
Classification: C08G,G01N

Abstract:
An oxirane derivative represented by the following general formula (1):RO(C2H4O)nHâ€ƒâ€ƒ(1) wherein R represents a C1-7 hydrocarbon group; and n represents the average number of moles of oxirane groups added, ranging from 20 to 900, wherein the following requirements are satisfied:(A) supposing that the straight line between the elution starting point and the elution end point on a chromatogram obtained by gel permeation chromatography is PbaseL, the total peak area above PbaseL is Parea, the height of the top of the maximum peak of refractive index: Ptop, with respect to PbaseL is PtopH, and the peak area between the point at which the height of the elution curve from the elution starting point toward Ptop, with respect to PbaseL is &frac15; of PtopH and the point at which the height of the elution curve from Ptop toward the elution end point, with respect to PbaseL is &frac15; of PtopH is PareaM, Parea and PareaM satisfy the following relationship: PareaM/Parea>0.85 and(B) when thin layer chromatography is effected by development with a 85:15 (by volume) mixture of chloroform and methanol, followed by color development with iodine and measurement of the purity of various spots by a densitometer, main spots having Rf values falling within the range of from 0.2 to 0.8 have a purity of not less than 98%.