| abstract |
(57) [Abstract] [Purpose] The main object of the present invention is to be excellent in waterproofness and sound absorption, to be capable of thermoforming, to be good in productivity and to be short in curing time. [Structure] Polyol, organic isocyanate, silicone oil, or a mixed stock solution obtained by stirring and mixing a heat-sensitive catalyst, a pigment and other additives with these is discharged onto a release paper (2) and sheeted to a certain thickness, and then porous from the upper surface. In the method for producing a polyurethane composite sheet by laminating the sheet (8), heating and curing the same, before laminating the porous sheet (8), a tin catalyst solution ( 13) A method for producing a polyurethane composite sheet, which comprises applying |