Curable casting compound for producing plastics moulded parts and use thereof

Patent metadata

Field	Value
Publication number	US-10822273-B2
Application number	US-201816102046-A
Country	US
Kind code	B2
Filing date	Aug 13, 2018
Priority date	Mar 24, 2016
Publication date	Nov 3, 2020
Grant date	Nov 3, 2020

Abstract

In one aspect, the disclosed examples relate to a curable casting compound for producing plastics moulded parts. For example, the curable casting compound may include a binder component on the basis of a polymerisable monomer and a proportion of approximately 40% to approximately 85% by weight of one or more inorganic fillers. In one example, the casting compound includes an aluminosilicate as one of the inorganic fillers. Other examples are provided.

First claim

What is claimed is:

1. A curable casting compound for producing plastics moulded parts, comprising a binder component on the basis of a polymerisable monomer and a proportion of approximately 40% to approximately 85% by weight of one or more inorganic fillers, wherein the casting compound comprises an aluminosilicate as one of the inorganic fillers, and wherein the aluminosilicate has a stoichiometric composition in which the total of the proportions of Al 2 O 3 and SiO 2 is approximately 98% by weight or more.

2. The casting compound according to claim 1 , wherein the casting compound comprises approximately 3% to approximately 85% by weight of the aluminosilicate.

3. The casting compound according to claim 2 , wherein the casting compound comprises from approximately 10% to approximately 60% by weight of the aluminosilicate.

4. The casting compound according to claim 1 , wherein the aluminosilicate has a mean particle size (D 50 -value) in the range of approximately 5 μm to approximately 40 μm.

5. The casting compound according to claim 1 , wherein the aluminosilicate is present in the form of particles that are coated with a reactive component.

6. A curable casting compound for producing plastics moulded parts, comprising a binder component on the basis of a polymerisable monomer and a proportion of approximately 40% to approximately 85% by weight of one or more inorganic fillers, wherein the casting compound comprises an aluminosilicate as one of the inorganic fillers, and wherein the aluminosilicate has a specific surface area (BET value) from approximately 0.2 m 2 /g to approximately 3 m 2 /g.

7. The casting compound according to claim 1 , wherein the binder component comprises methylacrylate, methylmethacrylate, an epoxide, an unsaturated dicarboxylic acid or its anhydride, or a diisocyanate as a monomer.

8. The casting compound according to claim 7 , wherein the binder component comprises a proportion of pre-polymerised polymethyl-acrylate, polymethylmethacrylate, polyether, unsaturated polyester or polyurethane.

9. The casting compound according to claim 1 , comprising a further inorganic filler that is selected from quartz, cristobalite, tridymite, glass, aluminium trihydroxide, wollastonite or mixtures thereof.

10. The casting compound according to claim 9 , wherein the further inorganic filler is present in the form of granular particles with a mean diameter of approximately 0.1 mm to approximately 1 mm.

11. The casting compound according to claim 9 , wherein the further inorganic filler comprises particles in the form of fibres, whiskers or needles.

12. The casting compound according to claim 1 , wherein the casting compound further comprises an organosiloxane functionalised with an unsaturated group.

13. The casting compound according to claim 1 , wherein the casting compound further comprises a particulate hydrophobic and/or oleophobic material.

14. A plastics moulded part produced from the casting compound according to claim 1 .

15. The plastics moulded part according to claim 14 , which is a kitchen or sanitary article selected from kitchen sinks, kitchen worktops, wash basins, bathtubs and the like.

16. A curable casting compound for producing plastics moulded parts, comprising a binder component on the basis of a polymerisable monomer and a proportion of approximately 40% to approximately 85% by weight of one or more inorganic fillers, wherein the casting compound comprises an aluminosilicate as one of the inorganic fillers, and wherein the aluminosilicate has a stoichiometric composition which corresponds to a proportion of approximately 50% to approximately 99% by weight of Al 2 O 3 and a proportion of approximately 1% to approximately 50% by weight of SiO 2 .

17. A plastics moulded part produced from the casting compound according to claim 6 .

18. A plastics moulded part produced from the casting compound according to claim 16 .

Assignees

• Blanco Gmbh & Co Kg

Inventors

• Hajek Andreas

Classifications

• C04B26/10

  obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C04B14/043

  Alkaline-earth metal silicates, e.g. wollastonite · CPC title

• C08K3/34

  Silicon-containing compounds · CPC title

• C04B14/06

  Quartz; Sand · CPC title

• C04B26/06 Primary

  Acrylates · CPC title