Patent ID: 9512292
Filing Date: 2016-12-06
CPC Classification: B29C,B60K,C08K,C08L

Claim Text:
1. A blow-moulded or roto-moulded fuel part, wherein the fuel part is formed of a polymer composition comprising: i. a polyamide A which is at least one polyamide selected from the group consisting of polyamide-6 (PA-6) and polyamide-66 (PA-66), and ii. an amount of 0.05 to 0.5 weight percent with respect to the total amount of the polymer composition of micro talcum having a median diameter of less than 0.6 μm, wherein the polymer composition has a melt volume flow rate (MVR) of at most 70 cm the polyamide A has a ratio of terminal carboxy group concentration to terminal amino group concentration which is equal to or greater than 1, and wherein the fuel part exhibits a fuel permeation rate for a hydrocarbon fuel measured by a weight loss method according to ASTM E96BW using ASTM fuel CE10 which is at least 36% less than a comparable fuel part formed of an identical polymer composition not containing the micro talcum.