| abstract |
(57) [Summary] [Structure] An elastic elastomer molded by a reaction injection molding method using a specific polyester condensate such as polyurethane resin, polyurea resin, polyurethane / urea resin, etc. as an internal release agent, and a method for producing the same. provide. [Effect] An internal release agent having a low acid value that does not inhibit the polyaddition reaction of polyurethane is used to obtain an elastic elastomer having remarkably improved releasability and good coatability. |