Polyesterharze enthaltende schmelzklebende Verbundfäden

摘要

Low-melting, modified polyester resins, suitable for use in hot-melt-adhesive conjugate fibers, are obtained by the polycondensation of (1) a diol component comprising 3 to 40 molar % of a 2,2-alkyl-substituted-1,3-propanediol and 60 to 97 molar % of ethylene glycol and/or 1,4-butanediol, and (ii) an aromatic dicarboxylic acid; the polyester resin having a melting point between the melting point of polyethylene or higher and a temperature lower by at least 20 DEG C than the melting point of highly crystalline polyethylene terephthalate.