| abstract |
(57) [Abstract] [Problem] Polyester, nylon, and To provide a one-component polyurethane resin having excellent adhesiveness to various plastic films such as polyethylene and polypropylene. A polyurethane resin obtained by reacting a high molecular weight polyol, a diisocyanate compound, a chain extender and, if necessary, a chain length terminating agent, which has a specific 5 A polyurethane resin having a number average molecular weight of 5,000 to 500,000 formed by using a compound having a polar group having a valent phosphorus atom is used. |