Patent ID: 6299808
Filing Date: 2001-10-09
Classification: B29C,C08J

Abstract:
A process for the continuous production of a polymerized high internal phase emulsion foam comprising:1) providing a high internal phase emulsion (HIPE) comprising:a) at least 70 percent by volume of an external phase comprising one or more polymerizable monomers;b) a surfactant in an amount effective to produce a high internal phase emulsion; andc) an internal phase2) depositing the emulsion onto a lower moving support substrate;3) leveling the emulsion to a desired thickness above the support substrate;4) polymerizing the monomers by running the emulsion and the lower moving support substrate through a heating zone for a time sufficient to polymerize at least 75% of the monomers in the HIPE by the end of the heating zone; and5) drying the polymerized HIPE in a drying zone for a time sufficient to produce a foam having greater than 50% of the internal phase removed.