Back to results
US 2021/0261776 A1Published application
Black-colored polyamide composition, production thereof and use
AssigneeBASF SE
InventorsSebastian Wagner, Jens Cremer
Life of this patent
Estimating the term…
Abstract
Described herein is a black-colored polyamide composition which includes a chromium-containing azo dye in a form of a chromium complex and carbon black, production of this polyamide composition and a method of using this polyamide composition for the production of black-colored laser-inscribable polyamide moldings.
Claims19
A polyamide composition comprising
- a) from 34.97 to 99.97% by weight of at least one synthetic polyamide as component A,
- b) from 0.01 to 1.0% by weight of a chromium complex dye selected from the group consisting of compounds of the formulae A1), A2) and A3) and mixtures of two or three of these compounds
- as component B,
- c) from 0.01 to 1.0% by weight of carbon black as component C,
- d) from 0 to 65% by weight of glass fibers as component D,
- e) from 0.01 to 10% by weight of at least one alkali metal halide, alkali metal pseudohalide, alkaline earth metal halide or alkaline earth metal pseudohalide as component E, and
- f) from 0 to 50% by weight of other additional substances as component F,
- where the quantities stated, which give a total of 100% by weight, are based on the entire composition and the polyamide composition comprises no CuI/KI in the molar ratio 1:4 in a quantity of 0.13% by weight or 0.3% by weight.
5 more elements
T/12.T/IPDA.T, PA 6.T/10.T/PACM.T, PA 6.T/12.T/PACM.T, PA 10.T/IPDA.T, PA 12.T/IPDA.T and copolymers and mixtures thereof.
Dependencies are inferred from the claim text.