公开(公告)号：US3154513A

公开(公告)日：1964-10-27

申请号：US85345059

申请日：1959-11-17

Applicant: BASF AG

Inventor： GERHARD ILLING ,  FRITZ HANUSCH ,  KARL HAGEN

IPC: C08K5/11 ,  C08L77/00

CPC classification number: C08L77/06 ,  C08K5/11 ,  C08L77/02 ,  C08L77/12 ,  C08L2205/02 ,  C08L77/00

Abstract: A composition comprises a synthetic linear film forming polyamide having uniformly distributed therein a dicarboxylic acid diester containing from 18-42 carbon atoms derived from an alkanol having 4-12 carbon atoms and an alkane dicarboxylic acid with 4-18 carbon atoms, in an amount of from 0,05%-1% by weight with reference to the weight of the polyamide. Specified dicarboxylic acid diesters are di-(2-ethylhexyl) adipate, dinonyl adipate, dioctyl sebacate, the di-isobutyl ester of 1-octylnonanedi carboxylic acid, the di (2-ethylhexyl) ester of 1-nonyl octane dicarboxylic acid and mixtures of the di-isooctyl ester of 2-methyl glutaric acid and di-isooctyl adipate. Specified polyamides are polyhexamethylene adipamide, polydecamethylene sebacamide, polycaprolactam and polycapryllic lactam. The examples describe the mixing at elevated temperatures of (1) polyhexamethylene adipamide, di-(2-ethylhexyl)-2-methyl-glutarate and di-(2-ethylhexyl) adipate; (2) polyhexamethylene adipamide, di-isooctyl adipate and titanium dioxide; (3) polycaprolactam and dinonyl adipate; (4) polycaprolactam and the di-isooctyl ester of 1-octyl nonane dicarboxylic acid and (5) polyhexamethylene adipamide and the di-(2-ethylhexyl) ester of 1-octyl nonane dicarboxylic acid; the products of the examples being suitable for injection moulding.