Patent ID: 9562143
Date: 2017-02-07
CPC Classifications: B29C,B29K,C08K,C08L,Y10T

Claim:
1. A process for producing laser-transparent moldings of any type which comprises preparing a thermoplastic molding composition comprising, as essential components: A) from 29 to 99.8% by weight of a polyester, B) from 0.2 to 2.0% by weight of alkali metal salts of aliphatic carboxylic acids or a mixture of these, based on 100% by weight of A) and B), wherein component B) is composed of sodium formate, sodium acetate, disodium adipate, the sodium salt of polyacrylic acid, or a mixture of these, and wherein the amount of component B) is from 15 to 200 mmol anion per kilogram of the polyester A), and also moreover C) from 0 to 70% by weight of further additives, where the total of the % by weight values for A) to C) does not exceed 100%, and extruding the thermoplastic molding composition, wherein the thermoplastic molding composition is laser-transparent.