Composite Solid Surface Article Containing Ocher

Abstract

A composition for artificial marble includes (a) about 100 parts by weight of an acrylic resin; (b) about 1 to about 30 parts by weight of an ocher powder having a particle size of about 1 to about 50 μm; (c) about 100 to about 200 parts by weight of an inorganic filler; (d) about 0.1 to about 10 parts by weight of cross-linking agent; and (e) about 0.1 to about 10 parts by weight of a polymerization initiator.

1 . A composite solid surface article comprising:
 about 100 parts by weight of an acrylic resin; and   about 1 to about 30 parts by weight of loess or ocher powder having an average particle size of about 1 to about 50 μm.   
     
     
         2 . The composite solid surface article of  claim 1 , wherein the article comprises a substantially smooth surface with a viewable pattern formed by one or more ingredients of the composite solid surface article, the viewable pattern comprising at least part of the loess or ocher powder. 
     
     
         3 . The composite solid surface article of  claim 1 , wherein the acrylic resin comprises a mixture of a polyacrylate and an acrylic monomer. 
     
     
         4 . The composite solid surface article of  claim 1 , wherein the article has a flexural strength of at least about 670 kgf/cm 2  as measured in accordance with ASTM 790. 
     
     
         5 . The composite solid surface article of  claim 1 , wherein the article has a flexural strength of at least about 680 kgf/cm 2  as measured in accordance with ASTM 790. 
     
     
         6 . The composite solid surface article of  claim 1 , wherein the article has an impact strength of at least about 1.4 kg·cm/cm as measured in accordance with ASTM D-256 at 23° C. 
     
     
         7 . The composite solid surface article of  claim 1 , wherein the article has an impact strength of at least about 1.6 kg·cm/cm as measured in accordance with ASTM D-256 at 23° C. 
     
     
         8 . The composite solid surface article of  claim 1 , comprising about 1 to about 30 parts by weight of loess powder having an average particle size of about 1 to about 50 μm. 
     
     
         9 . A structure comprising the composite solid surface article of  claim 1 . 
     
     
         10 . The structure of  claim 9 , wherein the structure is selected from the group consisting of countertops, sinks, tables, bathtubs, walls, and buildings. 
     
     
         11 . The structure of  claim 9 , wherein the article comprises about 1 to about 30 parts by weight of loess powder having an average particle size of about 1 to about 50 μm. 
     
     
         12 . The structure of  claim 9 , wherein the article comprises a substantially smooth surface with a viewable pattern formed by one or more ingredients of the composite solid surface article, the viewable pattern comprising at least part of the loess or ocher powder. 
     
     
         13 . The structure of  claim 9 , wherein the acrylic resin comprises a mixture of a polyacrylate and an acrylic monomer. 
     
     
         14 . The structure of  claim 9 , wherein the article has a flexural strength of at least about 670 kgf/cm 2  as measured in accordance with ASTM 790. 
     
     
         15 . The structure of  claim 9 , wherein the article has a flexural strength of at least about 680 kgf/cm 2  as measured in accordance with ASTM 790. 
     
     
         16 . The structure of  claim 9 , wherein the article has an impact strength of at least about 1.4 kg·cm/cm as measured in accordance with ASTM D-256 at 23° C. 
     
     
         17 . The structure of  claim 9 , wherein the article has an impact strength of at least about 1.6 kg·cm/cm as measured in accordance with ASTM D-256 at 23° C. 
     
     
         18 . A method of making a composite solid surface article, comprising:
 mixing about 100 parts by weight of an acrylic resin with about 1 to about 30 parts by weight of loess or ocher powder having an average particle size of about 1 to about 50 μm to form an article forming mixture;   molding the article forming mixture into a shape; and   curing the shaped article forming mixture to form the composite solid surface article.   
     
     
         19 . The method of  claim 18 , wherein the mixing step comprises mixing about 100 parts by weight of an acrylic resin with about 1 to about 30 parts by weight of ocher powder having an average particle size of about 1 to about 50 μm to form an article forming mixture. 
     
     
         20 . The method of  claim 18 , wherein the article comprises a substantially smooth surface with a viewable pattern formed by one or more ingredients of the composite solid surface article, the viewable pattern comprising at least part of the loess or ocher powder. 
     
     
         21 . The method of  claim 18 , wherein the acrylic resin comprises a mixture of a polyacrylate and an acrylic monomer. 
     
     
         22 . The method of  claim 18 , wherein the article has a flexural strength of at least about 670 kgf/cm 2  as measured in accordance with ASTM 790. 
     
     
         23 . The method of  claim 18 , wherein the article has an impact strength of at least about 1.4 kg·cm/cm as measured in accordance with ASTM D-256 at 23° C.