Patent ID: 11965093
Assignee: BASF SE
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A polyamide composition comprising:
(a) at least one first semi-crystalline polyamide comprising repeating units derived from two or more diacids and one or more diamine(s), containing:
(i) ≥20 to <40 mol-% of at least one aromatic diacid, based on a total amount of moles of diacid(s) present in the first polyamide,
(ii) >60 to ≤80 mol.-% of at least one aliphatic diacid, based on the total amount of moles of diacid(s) present in the first polyamide, wherein the at least one first semi-crystalline polyamide has a melt viscosity between 30 Pa·s and 80 Pa·s measured under shear rate of 1/2500 s at 290° C., according to ISO 11443,

(b) at least one second semi-crystalline polyamide comprising repeating units derived from two or more diacids and one or more diamine(s), containing:
(i) ≥40 to ≤90 mol.-% of at least one aromatic diacid, based on a total amount of moles of diacid(s) present in the second polyamide,
(ii) 10 to 60 mol.-% of at least one aliphatic diacid, based on the total amount of moles of diacid(s) present in the second polyamide, wherein the at least one second semi-crystalline polyamide has a melting temperature of more than 290° C.,

the second semi-crystalline polyamide having a higher heat distortion temperature than the first semi-crystalline polyamide,
(c) from 10 to 70 wt.-% , based on a total weight of the polyamide composition, of at least one glass fibre having a circular cross-sectional area, and
(d) optionally at least one further additive.