Laminated sheet and method of manufacturing the same
AssigneesKyowa Leather Cloth Co., Ltd., Toyota Jidosha Kabushiki Kaisha
InventorsKoji SUGIURA, Akinaka FUKUMI, Kenji KUBO, Takanori TATEMATSU
Life of this patent
Estimating the term…
Abstract
A laminated sheet includes a base cloth layer having a porous structure obtained by impregnating a woven fabric, which has a tear strength by a trapezoid method of 150 N or more in the longitudinal direction and 100 N or more in the lateral direction, with a resin composition containing a polyurethane resin and an organic flame retardant, and a skin layer layered on the base cloth layer, and has plural air holes penetrating in the thickness direction.
Claims16
1-5. (canceled)
A laminated sheet, comprising:
- a base cloth layer having a porous structure that is obtained by impregnating a woven fabric, which has a tear strength by a trapezoid method of 150 N or more in a longitudinal direction and 100 N or more in a lateral direction, with a resin composition containing a polyurethane resin and an organic flame retardant;
- and
- a skin layer that is layered on the base cloth layer,
- the laminated sheet having plural air holes penetrating in a thickness direction.
A method of manufacturing a laminated sheet, the method comprising:
- a step of impregnating a woven fabric, which has a tear strength by a trapezoid method of 150 N or more in a longitudinal direction and 100 N or more in a lateral direction, with a resin solution containing a polyurethane resin, an organic flame retardant, and a solvent,
- a step of soaking the woven fabric, which has been impregnated with the resin solution, in water to remove the solvent from the woven fabric and solidify the polyurethane resin,
- a step of drying the woven fabric, in which the polyurethane resin has been solidified, to form a base cloth layer having a porous structure,
- a step of roughening one surface of the base cloth layer,
- a step of forming a laminate in which a skin layer is layered on the roughened surface of the base cloth layer, and
- a step of forming plural air holes that penetrate in a thickness direction of the laminate.
Dependencies are inferred from the claim text.