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Title:
ARTIFICIAL STONE
Document Type and Number:
Japanese Patent JPH04280886
Kind Code:
A
Abstract:

PURPOSE: To obtain an artificial stone by laminating and integrating the 1st layer containing a resin and a filler to the 2nd layer containing a resin and a prescribed amount of a light-weight filler and hardening the laminate.

CONSTITUTION: The objective artificial stone is produced by laminating and integrating the 1st layer composed of a filler and a prescribed amount of a light-weight filler and having a flow pattern formed by a pigment and the 2nd layer composed of the same materials as the 1st layer and free from pigment and hardening the laminated product. As an alternative method, the stone is produced by laminating and integrating the 1st layer containing a resin and a prescribed amount of a light-weight filler and the 2nd and the 3rd layers containing a filler and a resin and placed in such a manner as to sandwich the 1st layer and hardening the obtained laminate. An artificial stone having excellent hardness, strength, abrasion resistance and heat-resistance can be produced by the use of the above constitution. The thermal expansion coefficients of the layers can be uniformized by adjusting the content of the filler in each layer to prevent the troubles of warpage, etc.


Inventors:
TERABE SEIJI
SAKA SATOSHI
Application Number:
JP6888291A
Publication Date:
October 06, 1992
Filing Date:
March 08, 1991
Export Citation:
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Assignee:
INAX CORP
International Classes:
B32B27/20; B32B33/00; C04B41/50; C04B41/65; C04B41/71; (IPC1-7): B32B27/20; B32B33/00; C04B41/50; C04B41/65
Domestic Patent References:
JPH0274577A1990-03-14
JPS5988382A1984-05-22
JPS57209353A1982-12-22
JPS634152A1988-01-09