Chip with stereoscopic texture for resin-based reinforced natural stone and resin-based reinforced natural stone containing the same

Patent metadata

Field	Value
Publication number	US-10086643-B2
Application number	US-201414538076-A
Country	US
Kind code	B2
Filing date	Nov 11, 2014
Priority date	May 30, 2014
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

Provided are a chip with a stereoscopic texture for a resin-based reinforced natural stone and a resin-based reinforced natural stone including the same. A chip with a stereoscopic texture can be obtained by coating a pigment on a surface of a crushed reinforced natural stone chip. In a resin-based reinforced natural stone to which the chip with a stereoscopic texture is added, a boundary surface between the chip and a matrix is formed, such that a texture of natural stone and a three-dimensional stereoscopic effect may be implemented, thereby making it possible to implement an aesthetically beautiful surface.

First claim

What is claimed is:

1. A chip with a stereoscopic texture for a resin-based reinforced natural stone, the chip comprising:
a resin-based reinforced natural stone chip formed of a cured mixture comprising about 10 to about 30 wt % of an unsaturated polyester resin, about 40 to about 60 wt % of a sand type silica-based inorganic material having an average particle size of about 0.1 to about 1.2 mm, and about 15 to about 35 wt % of a powder type silica-based inorganic material having an average particle size less than about 45 μm;
a binder coating agent; and
a pigment,
wherein the binder coating agent and the pigment are coated on a surface of the resin-based reinforced natural stone chip.

2. The chip of claim 1 , comprising about 1 to about 3 parts by weight of the binder coating agent and about 0.5 to about 3 parts by weight of the pigment, based on about 100 parts by weight of the resin-based reinforced natural stone chip.

3. The chip of claim 1 , wherein the resin-based reinforced natural stone chip has an average particle size of about 5.0 to about 20.0 mm.

4. The chip of claim 1 , wherein the binder coating agent is an acrylic resin, an urethane-based resin, or a mxiture thereof, and has a weight average molecular weight of about 20,000 to about 70,000 g/mol.

5. The chip of claim 1 , wherein the resin-based reinforced natural stone chip has a surface hardness (Barcol hardness) of about 80 or more and a surface roughness (Ra) less than about 1 μm.

6. The chip of claim 1 , wherein the powder type silica-based inorganic material has an average particle size of about 6 μm to about 15 μm.

7. A resin-based reinforced natural stone having an improved stereoscopic texture, the resin-based reinforced natural stone comprising:
about 1 to about 20 wt % of the chip with a stereoscopic texture for a resin-based reinforced natural stone of claim 1 ;
about 5 to about 15 wt % of an unsaturated polyester resin; and
about 70 to about 93 wt % of a silica-based inorganic material.

8. The resin-based reinforced natural stone of claim 7 , wherein the silica-based inorganic material includes:
a sand type silica-based inorganic material having an average particle size of about 0.1 to about 1.2 mm;
a powder type silica-based inorganic material having an average particle size less than about 45 μm; and
a quartz chip having an average particle size of about 1 to about 9 mm.

9. The resin-based reinforced natural stone of claim 7 , further comprising a curing agent, a curing accelerator, a crosslinking agent, an organic/inorganic pigment, a leveling agent, a UV absorber, a storage stabilizer, a polymerization inhibitor, a frame retardant, an antistatic agent, or a mixture thereof.

10. The resin-based reinforced natural stone of claim 7 , having a surface hardness (Barcol hardness) of about 80 to about 90 and a surface roughness (Ra) less than about 1.0 μm.

Assignees

• Lotte Advanced Mat Co Ltd

Inventors

• Lee Hee Cheol
• Kang Han Ju
• Hwang Cheol Yeon
• Kang Ki Cheon
• Son Chang Ho
• An Sung Jin

Classifications

• C04B2111/542

  Artificial natural stone · CPC title

• B44F9/04 Primary

  of stone surfaces, e.g. marble · CPC title

• C04B14/062

  Microsilica, e.g. colloïdal silica (preparing microsilica slurries or suspensions C04B18/148) · CPC title

• C04B18/022 Primary

  agglomerated by an organic binder · CPC title

• C04B2103/54

  Pigments; Dyes · CPC title