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US 12,281,043 B2Granted
Artificial agglomerated stone
AssigneeCosentino Research & Development, S.L.
InventorsBeatriz Alvarez Baladron, Daniel Risueno Moreno
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Abstract
The present disclosure relates to an artificial agglomerated stone comprising micronized feldspar and to a method for its manufacturing.
Claims23
An artificial agglomerated stone comprising:
- a) from 5 wt %-15 wt % of a hardened organic resin, based on the weight of the agglomerated stone,
- b) from 70 wt %-90 wt % of inorganic fillers with a particle size ranging from 0.1 mm-2 mm, based on the weight of the agglomerated stone, and
- c) from 5 wt %-25 wt % of micronized inorganic fillers with a particle size <100 micrometers, based on the weight of the agglomerated stone,
- wherein the micronized inorganic fillers comprise:
- c′) from 50 wt %-98 wt % of feldspar, based on the weight of the micronized inorganic fillers, and
- c″) from 2 wt %-30 wt % of a calcium carbonate material, based on the weight of the micronized inorganic fillers.
3 more elements
The artificial agglomerated stone according to 1, wherein the micronized feldspar c′) has a particle size D90 <40 micrometers.
The artificial agglomerated stone according to 1, wherein the micronized feldspar c′) has a particle size D90 of 2-40 micrometers.
A process for preparing an artificial agglomerated stone comprising:
- i) mixing a composition to form an unhardened mixture, wherein the composition comprises:
- a) from 5 wt %-15 wt % of a hardened unsaturated polyester resin, based on the weight of the composition,
- b) from 70 wt %-90 wt % of inorganic fillers with a particle size of 0.1-2 mm, based on the weight of the composition, and
- c) from 5 wt %-25 wt % of micronized inorganic fillers with a particle size <100 micrometers, based on the weight of the composition;
- wherein the micronized inorganic fillers comprise:
- c′) from 50 wt %-98 wt % of feldspar, based on the weight of the micronized inorganic fillers,
- c″) from 2 wt %-30 wt % of a calcium carbonate material, based on the weight of the micronized inorganic fillers;
- ii) vacuum vibrocompacting the unhardened mixture obtained in i) to form a compacted mixture, and
- iii) hardening the compacted mixture obtained in ii).
6 more elements
Dependencies are inferred from the claim text.