| 摘要 |
PURPOSE:An epoxy compound is combined and allowed to react with a polyester, in the presence of an epoxy ring-opening catalyst and a diepoxy compound, to lower the concentration of free COOH terminal groups, then the resultant polyester is subjected spinnig to produce the titled hydrolysis-resistant and amine-resistant yarn. CONSTITUTION:(A) A polyester resin such as polyethylene terephthalate and (B) a monoepoxy compound of formula I , II (R, R' are aliphatic, alicylic or aromatic groups) such as phenyl glycidyl ether are allowed to react in the presence of an epoxy ring-opening catalyst and a diepoxy compound of formula III (R3-R8 are H, monovalent organic residue; X is divalent organic residue) such as diglycidyl terephthalate, preferably 0.01-0.05mol% based on the component A to lower the concentration of free terminal COOH groups. Then, melt-spinning is conducted to give the objective filaments.
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