Process to prepare foams from high internal phase emulsions
AssigneeShell Oil Company
InventorsNazim Safarali Nathoo, Thomas Fairchild Brownscombe, Ronald Marshall Bass
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Abstract
A process is provided for curing a high internal phase emulsion to form a porous crosslinked polymeric material is provided, comprising the steps of: forming a high internal phase emulsion having at least one curable phase; providing a continuous strip of a polymeric film wherein the polymeric film is incompatible with each of the phases of the emulsion; placing at least a portion of the emulsion continuously on the polymeric film; closing the polymeric film around the film; and curing the emulsion within the polymeric film. Apparatuses to perform this process are also disclosed.
Claims2
A process for curing a high internal phase emulsion to form a porous crosslinked polymeric material, the process comprising the steps of:
- forming a high internal phase emulsion having at least one curable phase;
- providing a continuous strip of polymeric film wherein the polymeric film is incompatible with each of the phases of the emulsion;
- placing at least a portion of the emulsion continuously on the polymeric film;
- closing the polymeric film around the emulsion;
- spiraling the emulsion in the polymeric film onto a spool, wherein the spool rotates about an essentially vertical axis for storage of the emulsion during curing;
- and
- curing the emulsion within the polymeric film on the spool.
Dependencies are inferred from the claim text.