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US 12,145,883 B2Granted
Compositions comprising an acrylic polymer and processes of preparing the same
AssigneeCaesarstone Ltd.
InventorsErez Margalit, Boris Gorelik, Alon Golan, Yaacov Ron, Ido Winer
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Abstract
Composites made of a cross-linked acrylic polymer and an inorganic aggregate and/or mineral, with the cross-linked acrylic polymer being present at a concentration of 5% to 17%, by weight, are disclosed. Processes of preparing the composites are also disclosed.
Claims11
A composite comprising:
- (a) an acrylic polymer resin, and (b) an inorganic aggregate, wherein said acrylic polymer resin is present in an amount of 5 to 20% by weight of said composite, and wherein the acrylic polymer resin comprises monomeric units selected from acrylate, methacrylate (MMA) and monomers of at least one of methacrylic acid or acrylic acid and polymethylmethacrylate (PMMA),
- wherein the composite comprises a pigment and 0.02 to 0.4% by weight silane.
A method for obtaining a composite comprising an acrylic polymer and at least one inorganic aggregate, the method comprising the steps of:
- (a) mixing a plurality of acrylic monomers selected from acrylate, methacrylate (MMA) or any derivative thereof and monomers of at least one of methacrylic acid or acrylic acid;
- (b) adding to said mixture polymethylmethacrylate (PMMA);
- (c) adding to said mixture a pigment and 0.02 to 0.4% by weight silane;
- (d) adding an inorganic aggregate to said mixture, the inorganic aggregate and/or mineral being present at a concentration of 80% to 95% by weight of said mixture;
- and
- (e) curing said mixture at a temperature of above 80° C., thereby obtaining said composition.
3 more elements
Dependencies are inferred from the claim text.