| 摘要 |
Process for improving the sliding properties of linear polyester material in spinning operations, which comprises treating this material after the drawing with a mixture of the following components: (a) 50 to 90% by weight of a condensation product of formula I <IMAGE> (I) in which R1 is C10-C22alkyl or alkenyl, y is a number of from 20 to 40, and x plus z have a weight of less than 20% by weight of the polypropylene oxide portion, and (b) 50 to 10% by weight of a compound of formulae II and/or III <IMAGE> (II) and/or +TR R3O(C2H4O)yH (III) in which R2 and R3 are C8-C18alkyl or alkenyl, and x and/or y are numbers of from 5 to 20. |
