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US 11,173,632 B2Granted
Multi-component mixing and metering equipment with online stoichiometry control
AssigneeHexion Inc.
InventorsDirk Ewald, Anna Tihaya, Tareq Hasson, Nicole Megger, Sven Eichholz, Isabella Mazurczyk
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Abstract
The invention describes an advanced mixing and metering technology with online analytics for a supply of formulated liquid thermosetting resins into an open or closed mold. The application addresses where a precise control of the composition of formulated components is required. Composite structures used in primary and secondary structural aerospace applications manufactured in Infusion or RTM processes are possible examples.
Claims10
An apparatus for supplying a liquid or molten liquid thermosetting composition comprising
- one or more resins and one or more curing agents mixed in a mixing unit before curing in a mold,
- an online analytical tool comprising an analytical method to measure inline the correct mixing ratio of the one or more resins and the one or more curing agents before and/or after mixing, and
- material lines upstream of the mixing unit comprising inline measurement probes installed therein,
- wherein the online analytical tool is based on irradiation of the liquid thermosetting composition.
1 more element
Dependencies are inferred from the claim text.