Process for forming microporous sheet
Abstract
Abstract PROCESS OF MAKING MICROPOROUS SHEET HAVING PORES OF CONTROLLED SIZE AND ARRANGEMENT IN WHICH TEMPERATURE AND COMPOSITION ARE COORDINATED TO CONTROL GROWTH OF SIZE OF NON-SOLVENT LIQUID DROPLETS CONSISTUTING THE DISCONTINUOUS PHASE OF AN EMULSION OF WHICH THE CONTINUOUS PHASE IS A HEATED LIQUID POLYMERIC REACTIVE MATERIAL WHICH SETS THROUGH REACTION TO SOLID CONDITION AND IN WHICH PROCESS THE DROPLETS ARE REMOVED AFTER SETTING OF THE REACTIVE MATERIAL TO LEAVE SPACES CONSTITUTING OPENINGS OR PORES IN THE SOLIDIFIED MATERIAL. PORES OF SMALLER SIZE RELATIVE TO THE SIZE OF PORES IN THE BODY OF THE SHEET ARE PROVIDED IN THE SHEET BY CONTROL OF THE TEMPERATURE OF A CASTING SURFACE.
Inventors
- 👤 S Hayes
Bibliographic Details
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