Back to results
US 11,912,584 B2Granted
Alumina products and uses thereof in polymer compositions with high thermal conductivity
AssigneeMartinswerk GmbH
InventorsBashar Diar Bakerly, Henning Hofius, Martijn Jacobus Marinus Mies, Monika Giesselbach
Life of this patent
Estimating the term…
Abstract
Alumina products containing a fine particle size component and a coarse particle size component, and with specific particle size characteristics and irregular and non-spherical particle shapes, are disclosed. These alumina products can be used in polymer formulations to produce composites having high isotropic thermal conductivity.
Claims29
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.
4 more elements
A polymer composition comprising:
- (a) a polymer;
- and
- (b) an alumina product consisting of 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 61 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.
4 more elements
Dependencies are inferred from the claim text.