Patent ID: 11912865
Assignee: COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 6:
7. The thermoplastic composition as claimed in claim 1, comprising:
A) ≥50% to ≤75% by weight of aromatic polycarbonate;
B) ≥15% to ≤35% by weight of talc;
C) ≥0.5% to ≤3% by weight of anhydride-modified alpha-olefin polymer having an acid number of ≥30 mg KOH/g and an average molecular weight MW of ≥4000 to ≤40 000 g/mol,
wherein the average molecular weight MW is determined by gel permeation chromatography in ortho-dichlorobenzene at 150° C. with polystyrene calibration and the acid number is determined by potentiometric titration with alcoholic potassium hydroxide solution according to DIN ISO 17025:2005;
FR) ≥0.7% to ≤0.9% by weight of fluoropolymer-containing anti-drip agent in combination with ≥0.1% to ≤0.3% by weight of fluorinated sulfonic acid salt; or
≥0.4% to ≤0.6% by weight of fluoropolymer-containing anti-drip agent in combination with ≥3% to ≤5% by weight of organic phosphoric acid ester; or
≥0.4% to ≤0.6% by weight of fluoropolymer-containing anti-drip agent in combination with ≥3% to ≤10% by weight of linear or cyclic phosphazene;
D) ≥3% by weight to ≤10% by weight of barium sulfate;
E) ≥0% by weight to ≤3% by weight of titanium dioxide;, wherein the reported % by weight values are based on the total weight of the composition and sum to ≤100% by weight.