Polyamide moulding compounds and use thereof in the production of moulded articles

摘要

The present invention relates to polyamide molding compounds, pigmented black, which include nigrosin and at least one nucleation agent, carbon black being ruled out. The present invention likewise relates to a method for producing molded articles from the mentioned polyamide molding compounds and also the corresponding molded articles. The polyamide molding compounds are used in the production of components with increased temperature requirements, e.g. in the automobile sector.

主权项

1. A polyamide moulding compound having the following composition:
(a) 20 to 99% by weight of at least one polyamide selected from the group consisting of PA 6; PA 4.6; PA 66; PA 66/6; PA 6.10; PA 6.12; PA 10.10; PA 11; PA 12; PA MXD.6; PA MXD.10; PA MACM.12; PA PACM.12; PA 6.T/6.I; PA 6.T/66; PA 6.T/6.12; PA 6.T/10.12; PA 4.T; PA 9.T; PA 10.T; PA 12.T; PA 10/6.T; PA 6.T/6.I/66; PA 11/10.T; PA 12/10.T; PA 6.10/10.T; PA 6.12/10T; PA 10.10/10T; PA 10.12/10.T; PA 12.12/10T; PA 11/10.T/12; PA 11/10.T/6; PA 12/10.T/6; PA 11/10.T/10.I; PA 11/10.T/10.6; PA 12/10.T/10.I; PA 12/10.T/10.6; a polyamide made of a mixture of hexamethylenediamine and 2-methyl pentamethylene-diamine as diamine component and terephthalic acid as diacid component; polyamides, the diamine building block of which is 4,4′-diaminocyclohexylmethane, 3,3′-dimethyl-4,4′-diaminocyclohexylmethane, cyclohexyldiamine or tetramethyldicykan and/or mixtures or blends thereof, (b) 0.05 to 5% by weight of nigrosin, (c) 0.005 to 2% by weight of at least one nucleation agent, wherein the at least one nucleation agent is polyamide PA 2.2, (d) 0 to 79.945% by weight of at least one additive or supplement, wherein the at least one additive or supplement does not act as nucleation agent, wherein components (a) to (d) add up in total to 100% by weight of the polyamide moulding compound and carbon black is not a component of the polyamide moulding compound.