Polyamide composition, process for preparation, process for producing an article, and article made of the composition

An impact modified polyamide composition consisting of:

• X parts by weight (pbw) of an aliphatic polyamide (APA), and
• Y parts by weight (pbw) of a modified polyolefin impact modifier (MIM), and
• 0-30 parts by weight (pbw), relative to 100 pbw of X and Y combined, of one or more other polymer components and/or one or more additives together referred to as other components Z;
• wherein
• the aliphatic polyamide (APA) has a relative viscosity (RV), measured at 0.01 g/ml in 96% sulphuric acid and at 25° C. by the method according to ISO307:2019, of at most 2.40;
• the modified polyolefin impact modifier (MIM) has a melt flow rate (MFR), measured at 230° C. and a test load of 2.16 kg by the method according to ISO 1133:2011, of at most 15 g/10 min;
• and
• the sum of X and Y is 100 pbw, and wherein
• X is at most 77.5 pbw and Y is at least 22.5 pbw, and
• for the relative viscosity (RV) of the aliphatic polyamide (APA) up to and including 2.20, X is at least 60 pbw and Y is at most 40 pbw;
• for the relative viscosity (RV) of the aliphatic polyamide (APA) in a range between above 2.20 and up to and including 2.33, X is at least 65 pbw and Y is at most 35 pbw;
• and
• for the relative viscosity (RV) of the aliphatic polyamide (APA) in a range between above 2.33 and up to and including 2.40, X is at least 70 pbw and Y is at most 30 pbw;
• and wherein the other components Z comprise:
• 0-10 pbw of a non-modified polyolefin, and 0-2 pbw of a micro talcum, relative to the 100 pbw of the combined amount of X and Y.