Microstructured Composite Particles
AssigneeSchaefer Kalk GmbH & Co. KG
InventorsMarijan Vucak, Christoph Nover
Life of this patent
Estimating the term…
Abstract
Microstructured composite particles obtainable by a process in which large particles are bonded to small particles. The composite particles are preferably used as an additive, especially as a polymer additive, as an additive or starting material for the production of components, for applications in medical technology and/or in microtechnology and/or for the production of foamed articles.
Claims16
Microstructured composite particles obtained by a process comprising combining large particles with small particles, wherein:
- the large particles have an average particle diameter in the range from 0.1 μm to 10 mm,
- an average particle diameter of the small particles is not more than 1/10 of the average particle diameter of the large particles,
- the large particles comprise at least one polymer,
- the small particles comprise calcium carbonate, and
- the small particles form at least one of an arrangement on the surface of the large particles and a non-uniform distribution within the large particles,
- wherein the small particles comprise precipitated particles of calcium carbonate which have an average particle size in the range from 0.01 μm to 1.0 mm.
Microstructured composite particles obtained by a process comprising combining large particles with small particles, wherein
- the large particles have an average particle diameter in the range from 0.1 μm to 10 mm,
- an average particle diameter of the small particles is not more than 1/10 of the average particle diameter of the large particles,
- the large particles comprise at least one polymer,
- the small particles comprise at least one calcium salt, and
- the small particles form at least one of an arrangement on the surface of the large particles and a non-uniform distribution within the large particles,
- wherein the large particles comprise at least one resorbable polyester having a number-average molecular weight in the range from 500 g/mol to 1,000,000 g/mol.
(canceled)
Dependencies are inferred from the claim text.