| 摘要 |
PURPOSE: To provide surface defect-free foam articles using high water, high resiliency(HR) polyurethane molding composition by coating and hardening a silicone mold release composition on the predetermined form face and then, disposing a molding composition in contact with the predetermined form face. CONSTITUTION: A silicone mold release composition in produced by mixing hydroxyl endblocked polydimethylsiloxane polymer with inert organic solvent and adding a siloxane crosslinker thereto. Thereafter, the mixture and inert organic solvent are mixed and catalyst is added in the solution when the composition is coated according to the mold. High water, HR polyurethane mold composition is injected in a mold, and foam articles are separated from the mold after applying the molding composition to foam articles. |
