METHOD OF SUPPLYING POLYOL COMPONENT OF POLYURETHANE REACTIVE INJECTION MOLDING

摘要

PURPOSE:To provide a method of supplying a polyol component of polyurethane reactive injection molding(RIM) which can produce a water foamable polyurethane molded product having a stabilized quality (including expansion ratio also). CONSTITUTION:The title method is a method of supplying a polyol component in a polyurethane RIM of a water foamable prescription. On the occasion of supply of the prepared polyol component to a temperature controlled raw material tank 16 provided with a circulation path with a mixing head 40 from an open type preparation tank 12, the supply is performed by pouring the whole of one batch amount of the polyol component into a closed auxiliary tank 14 provided with the circulation path 18 from the preparation tank 12 at a time.