Patent ID: 6518395
Filing Date: 2003-02-11
Classification: C09D

Abstract:
A process for preparing a reactive powder coating composition which comprises the steps of:a) placing at least one base resin component and at least one hardener component into separate containers, wherein said base resin component and said hardener component are each separately converted into a flowable melt by being heated; b) mixing the flowable melt base resin and the flowable melt hardener components of step (a) to form a flowable melt mixture; c) mixing under pressure a low molecular mass inert compound with the flowable melt mixture of step (b) to form a pressurized mixture; d) homogenizing the pressurized mixture formed in step (c) for a period ranging from 0.1 seconds to 5 minutes to form a homogenized mixture; and e) depressurizing the homogenized mixture formed in step (d), wherein said depressurization releases the low molecular mass inert compound from said homogenized mixture and further wherein said depressurization cools the homogenized mixture.