Patent ID: 6890966
Filing Date: 2005-05-10
Classification: C08G

Abstract:
1. A process for the production of a lightweight cold urethane, which comprises the steps of: combining raw materials comprising 100 parts by weight of a polyol, an isocyanate used in an amount in the range of 70 to 140% of its stoichiometric amount for the polyol, and an auxiliary ingredient mixture comprising 2.5 to 5.5 parts by weight of water, 0.1 to 2.0 parts by weight of diethanolamine, 0.5 to 3 parts by weight of a catalyst, 0.4 to 2.0 parts by weight of a water-soluble silicone foam stabilizer, and 0 to 2.0 parts by weight of a silicone foam stabilizer; and injecting the raw materials into a mold in one shot.