Synthetic board and method of producing the same

1. A synthetic board comprising:

one of fiberized lignocellulosic material and powdered lignocellulosic material;

an adhesive for binding said lignocellulosic material, the adhesive containing polybutylene succinate-based resin; and

one of a woven fabric and a nonwoven fabric laminated onto one side of a mixture of said lignocellulosic material and said adhesive simultaneously when the mixture is subjected to heat-press molding.

2. A synthetic board comprising:

one of fiberized lignocellulosic material and powdered lignocellulosic material;

an adhesive for binding said lignocellulosic material, the adhesive containing polybutylene succinate-based resin, wherein

said polybutylene succinate-based resin is treated to suppress hydrolyzability and biodegradability.

3. The synthetic board according to claim 2 , wherein:

when an initial value of tensile fracture elongation of said polybutylene succinate-based resin is X, and

a value of tensile fracture elongation of said polybutylene succinate-based resin that has been let stand for 480 hours in an environment where temperature is 50 degrees centigrade, and

relative humidity is 90 percent, is Y, ratio of Y to X is 80 percent or more.

4. A synthetic board comprising:

one of fiberized lignocellulosic material and powdered lignocellulosic material;

an adhesive for binding said lignocellulosic material, the adhesive containing polybutylene succinate-based resin, wherein

said lignocellulosic material is fibers mechanically fiberized by a fiberizer.

5. A synthetic board comprising:

one of fiberized lignocellulosic material and powdered lignocellulosic material;

an adhesive for binding said lignocellulosic material, the adhesive containing polybutylene succinate-based resin, wherein

said synthetic board contains said polybutylene succinate-based resin in a range of 5 to 300 parts by mass when said synthetic board contains 100 parts by mass of said lignocellulosic material.

6. A method of producing a synthetic board comprising the steps of:

obtaining a mixed material by mixing lignocellulosic material containing lignocellulose and an adhesive containing polybutylene succinate-based resin;

heating and pressing said mixed material at the same time;

molding a board-like preform from said mixture between said mixing step and said pressing step; and

setting one of a woven fabric and a nonwoven fabric onto a surface of said preform, wherein:

said pressing step simultaneously heats and presses said preform together with said fabric.

7. A method of producing a synthetic board comprising the steps of:

obtaining a mixed material by mixing lignocellulosic material containing lignocellulose and an adhesive containing polybutylene succinate-based resin;

heating and pressing said mixed material at the same time; and

treating said polybutylene succinate-based resin to suppress hydrolyzability and biodegradability prior to said mixing step.

8. The method according to claim 7 , wherein:

said treating step is carried out so that, when an initial value of tensile fracture elongation of said polybutylene succinate-based resin is X, and a value of tensile fracture elongation of said polybutylene succinatebased resin that has previously been let stand for 480 hours in an environment where temperature is 50 degrees centigrade, and relative humidity is 90 percent, is Y, ratio of Y to X is 80 percent or more.

9. A method of producing a synthetic board comprising the steps of:

obtaining a mixed material by mixing lignocellulosic material containing lignocellulose and an adhesive containing polybutylene succinate-based resin;

heating and pressing said mixed material at the same time; and

fiberizing a raw material containing lignocellulose to obtain fibers as said lignocellulosic material prior to said mixing step, said fiberizing step including a process of subjecting said raw material to an explosion treatment.

10. A method of producing a synthetic board comprising the steps of:

obtaining a mixed material by mixing lignocellulosic material containing lignocellulose and an adhesive containing polybutylene succinate-based resin;

heating and pressing said mixed material at the same time; and

fiberizing a raw material containing lignocellulose to obtain fibers as said lignocellulosic material prior to said mixing step, wherein:

said fiberizing step mechanically fibrillates said raw material by using a fiberizer.

11. A method of producing a synthetic board comprising the steps of:

obtaining a mixed material by mixing lignocellulosic material containing lignocellulose and an adhesive containing polybutylene succinate-based resin; and

heating and pressing said mixed material at the same time, wherein

said mixing step mixes 5 parts to 300 parts by mass of said polybutylene succinate-based resin with 100 parts by mass of said lignocellulosic material.