JPH08164586A - Artificial marble composite panel - Google Patents

Abstract

PURPOSE: To obtain an artificial marble composite panel useful as building materials such as a floor material and a wall material. CONSTITUTION: An artificial marble composite panel in which artificial marble 1 layers are bonded through a veneer 2 to be laminated integrally into a sandwich-like form. When the panel is used as a heat insulating material, a heat insulator is sandwiched between the veneers 2 in the production of the panels. The panel is lightweight, has good mechanical strength and a waterproof property, can be cut and machined easily with a wood working tool, and also is decorative.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial marble composite panel which is useful as a building material such as floor materials and wall materials. The artificial marble composite panel which is the object of the present invention has characteristics that it is light in weight, excellent in mechanical strength and water resistance, and can be easily cut and cut by a woodworking tool. And is useful in various fields as a building material or the like that replaces wood panels. When it is used as a heat insulating wall material, a heat insulating material, for example, a hard urethane foam, is used between different materials such as plywood interposed between layers of artificial marble.
It can be manufactured by forming an insulating layer of an organic foam such as rubber.

[0002]

2. Description of the Related Art Conventionally, flooring and wall materials are made of plywood as a core material.
It was used as a building material as a natural marble composite panel by artificially applying an adhesive such as silicon to the plywood and sandwiching it between the natural marble layers. Further, when it is used as a heat insulating wall material or the like, it is manufactured through a heat insulating material such as a hard urethane foam between plywood. However, the artificial marble composite panel using plywood as a core material has a big problem. The problem is inferior water resistance. When used on outer walls, the adhesive of plywood, which is the core material, deteriorates over time due to water leakage and dew condensation due to rainfall, or high humidity, and the veneers that make up the plywood peel off and lose the strength of the core material. , Is to lose its function as a building material. In particular, with respect to sites and applications where vibrations and stress strains are repeatedly applied, it is not possible to prevent the composite panel from deteriorating with time even by performing thorough construction techniques and daily thorough management. In addition, when joining artificial or natural marble and plywood, the laborious work of applying an adhesive was required.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the above problems of the prior art and has a lightweight and excellent building material or heat insulating property by interposing a plywood or heat insulating material between artificial marble layers. It is an object of the present invention to provide an artificial marble composite panel which can be processed into a building material and has excellent mechanical strength and water resistance and which can be easily subjected to secondary processing.

[0004]

SUMMARY OF THE INVENTION The present invention is an artificial marble composite panel in which sandwiches of plywood are joined and laminated and integrated without using an adhesive between the artificial marble layers. When it is used as a heat insulating material, a heat insulating material such as a hard urethane foam may be interposed between the plywoods. In the present invention, the artificial marble is a resin composition containing calcium carbonate powder, an unsaturated polyester resin containing a curing accelerator and a curing agent as main components. Furthermore, the hard urethane foam is generally obtained by foaming a commercially available plate-shaped hard urethane foam and / or a hard polyurethane resin stock solution by a casting method, an injection method, or a spraying method. Means a rigid urethane foam.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a vertical sectional view showing an embodiment of an artificial marble composite panel according to the present invention, which is generally used as a floor material or a wall material. Reference numeral 1 is artificial marble, which is a resin composition containing calcium carbonate powder, an unsaturated polyester resin containing a curing accelerator and a curing agent as main components. Reference numeral 2 is a plywood having a function as a core material sandwiched between artificial marble layers. An artificial marble composite panel is used to join the artificial marble and the plywood so that the unsaturated polyester resin is cured under pressure and laminated under pressure without using an adhesive, so that the artificial marble and the plywood are joined very firmly. Can be manufactured. As a result of stacking, the stone powder of calcium carbonate inherent in the artificial marble falls downward due to its specific gravity and the resin layer rises. Also, warping occurs because the resin layer containing calcium carbonate stone powder shrinks when it hardens, but there is a difference in the coefficient of thermal expansion from plywood, and since the shrinkage ratio is different, they pull each other and cancel each other out. No warpage occurs and it is difficult to deform.

FIG. 2 is a vertical sectional view showing an embodiment of an artificial marble composite panel when it is used as a heat insulating material in another embodiment of the present invention. Reference numerals 1 and 2 are the artificial marble and the plywood described in FIG. 1, respectively. Reference numeral 3 denotes a heat insulating material such as a hard urethane foam, which is interposed between the plywoods to be joined and laminated to manufacture an artificial marble composite panel having excellent heat insulating properties. As described with reference to FIG. 1, since the artificial marble and the plywood have different contraction rates, warpage occurs, but the products pull each other and cancel each other out.

The artificial marble composite panel described above has the characteristics that it is lightweight, has excellent mechanical strength and water resistance, and that it can be easily cut and cut with a woodworking tool. Therefore, it can be applied to a wide range, and the color and pattern can be freely changed by using various colorants and other additives as needed for artificial marble. Since the surface is smooth and glossy without buffing, it is possible to manufacture an artificial marble composite panel that is also excellent in terms of decoration.

When a building material having excellent heat insulating properties, sound deadening properties, etc. is required, it can be provided as an artificial marble composite panel by laminating and integrating a plywood with an optimum material therefor. . In addition, it is also possible to manufacture an artificial marble composite panel by directly joining the building materials to the artificial marble and laminating and integrating them without directly interposing the plywood. The artificial marble composite panel of the present invention describes plywood and a heat insulating material as a foreign material interposed between layers of the artificial marble,
Although the embodiment is shown in the drawings, the invention is not limited to this, and it is needless to say that various modifications can be made without departing from the scope of the invention depending on the application such as a plate, an iron plate, and a glass wool.

[0009]

As described above, according to the present invention, an adhesive is used when the calcium carbonate powder, the unsaturated polyester resin containing the hardening accelerator and the hardening agent, and the plywood are joined and laminated together. However, since the plywood is joined by pressurizing without being applied, in the conventional case, the adhesive deteriorates with time and loses the function as the plywood, but according to the artificial marble composite panel of the present invention, It does not cause any harmful effects, is lightweight, has excellent mechanical strength and water resistance, and can be easily cut and cut with a woodworking tool, and is also decoratively excellent. It is useful in various fields as a building material that can be effectively used to replace wood panels. Further, by interposing an optimum material between the plywoods depending on the application, it is possible to obtain an optimum building material that matches the application.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of an artificial marble composite panel according to the present invention.

FIG. 2 is a longitudinal sectional view showing another embodiment of the artificial marble composite panel according to the present invention.

[Explanation of symbols]

 1 Artificial marble 2 Plywood 3 Insulation material

Claims (2)

[Claims] 1. An artificial marble composite panel characterized by being sandwiched between layers of artificial marble through a heterogeneous material such as plywood to be pressure-cured and bonded to be laminated and integrated. 2. An artificial marble composite panel, characterized in that the heterogeneous material such as the plywood according to claim 1 is further laminated and integrated by interposing a heterogeneous material such as a heat insulating material.