| abstract |
IN WHICH R1 and R2 are each as defined above and p and q are each zero or a positive integer not more than 10, or blending the resultant polymer into linear fiber-forming polyesters. Process for preparing polyesters improved in dyeability with acid dyes which comprises polycondensing a dicarboxylic acid with a glycol, the whole or part of the glycol being the one represented by the formula: WHEREIN R1 and R2 are each a lower alkyl group or, when taken together, they represent a lower alkylene group, R3 is a lower alkyl group or a group of the formula: D R A W I N G |