Artificial stones

• US 5,364,672 A
• Filed: 11/27/1990
• Issued: 11/15/1994
• Est. Priority Date: 05/27/1988
• Status: Expired due to Fees

• Current Assignee: Andreas Schultze-Kraft
• Original Assignee: Andreas Schultze-Kraft
• Inventors: Schultze-Kraft, Andreas
• Primary Examiner(s): Epstein, Henry F.
• Application Number:
  US07/633,338
• Time in Patent Office: 1,449 Days
• Field of Search: 428/15, 428/413, 428/703, 428/276, 156/61, 156/71
• US Class Current: 428/15
• CPC Class Codes: B29C 67/245 for making articles of indefinite length
• CPC Class Codes: B44F 9/04 of stone surfaces, e.g. marble
• CPC Class Codes: C04B 14/04 Silica-rich materials; Silicates
• CPC Class Codes: C04B 14/22 Glass ; Devitrified glass
• CPC Class Codes: C04B 18/022 agglomerated by an organic binder
• CPC Class Codes: C04B 18/0481 Other specific industrial waste materials not provided for elsewhere in C04B18/00
• CPC Class Codes: C04B 2103/54 Pigments; Dyes
• CPC Class Codes: C04B 2111/00612 as one or more layers of a layered structure
• CPC Class Codes: C04B 2111/542 Artificial natural stone
• CPC Class Codes: C04B 26/02 Macromolecular compounds
• CPC Class Codes: C04B 32/02 with reinforcements contains no documents; reinforcing elements E04C5/00
• CPC Class Codes: C04B 41/45 Coating or impregnating paints C09D, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements ion-implantation C04B41/0027
• CPC Class Codes: Y02W 30/91 Use of waste materials as fillers for mortars or concrete

Abstract

Artificial stones from finely divided glass fragments and artificial resins and having a great similarity to natural stones under optical, weight-related and tactile-esthetical aspects consist of

15 to 30% by weight of a transparent cured or thermoplastically deformed synthetic resin which may be dyed,

10 to 80% by weight of white, green, brown or mixed fragmented and/or granulated waste glass of grain sizes of from 0.05 to 3 mm,

0 to 40% by weight of transparent, opaque or strongly colored fragmented and/or granulated new glass having grain sizes of from 0.05 to 3 mm,

0 to 75% by weight of transparent, opaque or strongly colored ground material having grain sizes of from 0.05 to 3 mm, produced from 80 to 92 parts by weight of waste glass having grain sizes of from 0.05 to 0.3 mm and

8 to 20 parts by weight of curable synthetic resin,

0 to 35% by weight of inorganic fillers selected from the group of silica sand, quartz meal, stone meal, natural or synthetic ground and/or granulated silicates having grain sizes from 0.05 to 3 mm, and

0 to 0.5% by weight of dyes and colored pigments.

Claims

1. Artificial stones from finely divided glass fragments and artificial resins, characterized in that they are closely similar to natural stones in terms of optical, weight-related, touch, and aesthetic properties, wherein said stones comprise

from 15 to 30% by weight of a transparent cured or thermoplastically deformed synthetic resin,

from 10 to 80% by weight of fragmented waste glass of the grain sizes from 0.05 to 3 mm, and

up to 0.5% by weight of dyes or colored pigments.

2. The artificial stones according to claim 1, characterized in that the close similarity to natural stones is achieved by fragmented colored waste glass selected from the group consisting of white, brown, green, and mixtures thereof.

3. The artificial stones according to claim 1, characterized in that their surface has been shaped by means of a pressing or casting operation to simulate the surface of treated or untreated natural stones.

4. The artificial stones according to claim 1, characterized in that they comprise at least two layers of different colors.

5. The artificial stones according to claim 1, characterized in that they comprise at least two layers of different grain structure.

6. The artificial stones according to claim 1, characterized in that they comprise at least two layers, one of which is a support layer and one of which is a decoration layer.

7. The artificial stones according to claim 1, characterized in that they have a flat surface.

8. The artificial stones according to claim 1, characterized in that they have a surface which is reinforced with fiber material or metal wire-mesh webs.

9. The artificial stones according to claim 1, characterized in that they have a surface treated with a weather-resistant coating for outdoor use.