| 摘要 |
A polyester resin(ens of one molecule is up C21 straight alkyl) for insulated wire(I) comprises a (A) multivalent alcohol i.e. ethyleneglycole, glycerine, tris-2-hydroxyethylisocyanulate (B) multicarbonic acid i.e. aromatic carbonic acid, telephthalic acid or its derivs. and (C) up C21 straight alkyl in molecule and resin from rxn. of compds. hve reactionable functional gp. with (A) and (B). (C) is reacted by 0.4-4.0 wt.% to produce resin. (I) are painted onto the outside of the wire, and are given heat treatment. |
