Purification of high performance epoxy resins via membrane filtration technology
AssigneeHexion Inc.
InventorsJimmy VAN RIJN, Nicole MEGGER, lris JOHANNSEN, Sven ElCHHOLZ
Life of this patent
Estimating the term…
Abstract
The invention describes a low temperature process for high performance epoxy resins purification via membrane separation technology. Continuous or semi-continuous low temperature processing grants a minimized material aging during product purification as for example glycidyl amine based resins.
Claims10
A continuous or semi-continuous, low temperature purification process for high performance resins, thermoset resins or epoxy resins and more specifically glycidyl amine based high performance resins,
- the process combines:
- a single membrane filtration unit that operates at low solvent concentrations
- or cascaded membrane filtration units that operate high to medium solvent concentrations
- combine at the end of the process with current physical distillation units such as flashers or wiped thin film evaporator devices to remove the solvents of the purified resin, thereafter.
A high performance resin, thermoset resin or epoxy resin and more specifically glycidyl amine based high performance resin, purified by the process of one of preceding claims.
Dependencies are inferred from the claim text.