Patent ID: 8552103

Claim:
Filled polyamide molding material with low water absorption and good mechanical properties, consisting essentially of the following components: (A) one aliphatic polyamide being polyamide 618, (B) a copolyamide built up from (b 1 ) 60 to 80 wt.-parts units, derived from isophtalic acid (1) in combination with hexamethylene diamine (6) in almost equimolar ratio, and (b 2 ) 20 to 40 wt.-parts units, derived from terephthalic acid (T) in combination with hexamethylene diamine (6) in almost equimolar ratio, wherein the wt.-parts of the components (b 1 ) and (b 2 ) totals 100 wt.-parts, and (C) at least one filler component selected from the group consisting of glass fibers, carbon fibers, metal fibers, aramid fibers, whiskers, talc, mica, silicates, quartz, titanium dioxide, wollastonite, kaolin, silicic acids, magnesium carbonate, magnesium hydroxide, chalk, grounded or precipitated calcium carbonate, lime, feldspar, barium sulfate, permanent magnetic or magnetizable metals or alloys, glass balls, hollow glass balls, hollow spheroidal silicate fillers, natural layered silicates, synthetic layered silicates and mixtures thereof, wherein the weight percents of the components (A) to (C) total 100%, and wherein the components (A), (B) and (C) fulfill the following conditions: (A)+(B): 80 to 20 wt.-%, weight ratio (A)/(B): 60/40 to 90/10, (C): 20 to 80 wt.-%, wherein the polyamide molding material optionally comprises usual additives (D) in addition to the components (A) to (C), and wherein their amount is in addition to the sum of the components (A) to (C).