Preparation of molded lignocellulosic compositions using an emulsifiable polyisocyanate binder and emulsifiable carboxy functional siloxane internal release agent.

摘要

A binder system is provided for the preparation of lignocellulosic composite molded articles, such as flake or particle board, which incorporates an internal release agent and comprises an emulsifiable organic di-or polyisocyanate and an emulsifiable carboxy functional siloxane. The emulsifiable carboxy functional siloxane is preblended with the di-or polyisocyanate providing for increased mold release properties.