02-01-2020 дата публикации
Номер: US20200002511A1
The present disclosure relates to polyamide compositions and resulting injection-molded articles that can be plated, e.g., metal coated, to form structurally aesthetic injection-molded articles. The polyamide compositions may include from 40 wt. % to 80 wt. % of a polyamide, from 0.5 wt. % to 40 wt. % of an etchable filler, from 5 wt. % to 30 wt. % of glass fiber, optionally less than 40 wt. % of a semi-structural mineral, and optionally from 0.1 wt. % to 13 wt. % of additive. The polyamide composition imparts very good surface appearance and excellent mechanical properties to injection-molded articles that are substantially free of visual defects. 1. A polyamide composition comprising:from 40 wt. % to 80 wt. % of a polyamide;from 0.5 wt. % to 40 wt. % of an etchable filler;from 5 wt. % to 30 wt. % of glass fibers having an average diameter up to 10 microns;less than 40 wt. % of a semi-structural mineral; andfrom 0.1 wt. % to 13 wt. % of additive.2. The composition of claim 1 , wherein the polyamide comprises PA-6 claim 1 , PA-6 claim 1 ,6 claim 1 , PA4 claim 1 ,6 claim 1 , PA-6 claim 1 ,9 claim 1 , PA-6 claim 1 ,10 claim 1 , PA-6 claim 1 ,12 claim 1 , PA11 claim 1 , PA12 claim 1 , PA9 claim 1 ,10 claim 1 , PA9 claim 1 ,12 claim 1 , PA9 claim 1 ,13 claim 1 , PA9 claim 1 ,14 claim 1 , PA9 claim 1 ,15 claim 1 , PA-6 claim 1 ,16 claim 1 , PA9 claim 1 ,36 claim 1 , PA10 claim 1 ,10 claim 1 , PA10 claim 1 ,12 claim 1 , PA10 claim 1 ,13 claim 1 , PA10 claim 1 ,14 claim 1 , PA12 claim 1 ,10 claim 1 , PA12 claim 1 ,12 claim 1 , PA12 claim 1 ,13 claim 1 , PA12 claim 1 ,14 claim 1 , PA-6 claim 1 ,14 claim 1 , PA-6 claim 1 ,13 claim 1 , PA-6 claim 1 ,15 claim 1 , PA-6 claim 1 ,16 claim 1 , PA-6 claim 1 ,13 claim 1 , PAMXD claim 1 ,6 claim 1 , PA4T claim 1 , PAST claim 1 , PA-6T claim 1 , PAST claim 1 , PA10T claim 1 , PA12T claim 1 , PA4I claim 1 , PA5I claim 1 , PA-6I claim 1 , PA10I claim 1 , copolymers claim 1 , terpolymers claim 1 , and mixtures thereof.3. The composition ...
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