Patent ID: 11912584
Assignee: MARTINSWERK GMBH
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A polymer composition comprising:
(a) a polymer; and
(b) an alumina product having a fine alumina particle size component and a coarse alumina particle size component, wherein:
the fine alumina particle size component has a d50 particle size in a range from 0.3 to 6 μm;
the coarse alumina particle size component has a d50 particle size in a range from 7 to 35 μm, and is characterized by an average aspect ratio in a range from 2.5 to 15; and
the amount of the fine alumina particle size component in the alumina product is from 10 to 90 wt. %, based on the total weight of the fine alumina particle size component and the coarse alumina particle size component.