Fuel part and process for producing of a fuel part
AssigneeDsm IP Assets B.V.
InventorsKatarina Tomic, Konraad Dullaert, Eric Willem Van Der Vegte
Life of this patent
Estimating the term…
Abstract
This invention relates to a fuel part, comprising a polymer composition comprising: i. a polyamide A in which the ratio of terminal carboxy group concentration over terminal amino group concentration of the polyamide A is equal to 1 or higher, and ii. micro talcum in an amount of 0.001 to 1 weight percent with respect to the total amount of the polymer composition, and iii. an impact modifier in an amount of at least 1.0 weight percent with respect to the total amount of the polymer composition. This invention also relates to a process for producing a fuel part.
Claims8
A fuel part for contact with a hydrocarbon fuel, wherein the fuel part is formed of a polymer composition comprising:
- (i.) at least 80 wt. % based on total weight of the polymer composition of at least one aliphatic polyamide selected from the group consisting of polyamide-6 (PA6), polyamide-66 (PA66), polyamide-410 (PA410) and polyamide-46 (PA46) having a ratio of terminal carboxy group concentration over terminal amino group concentration which is equal to 1 or higher,
- (ii.) 0.001 wt. % to 0.8 wt. % based on total weight of the polymer composition of a micro talcum having a median diameter of less than 1 micrometer;
- and
- (iii.) 5 wt. % to 50 wt. % based on total weight of the polymer composition of an impact modifier, wherein
- the fuel part is selected from the group consisting of fuel containers, fuel canisters, fuel caps and fuel hoses, and wherein
- the fuel part exhibits a fuel permeation rate for the hydrocarbon fuel measured by a weight loss method according to ASTM E96BW using ASTM fuel CE10 which is less than a comparable fuel part formed of an identical polymer composition not containing the micro talcum.
Dependencies are inferred from the claim text.