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US 10,494,497 B2Granted
Processes for preparing foam composites
AssigneeXflam Pty Ltd
InventorsWren Bracegirdle, Michael Monti, Gordon Smyth, Stephen Clarke, Stephen McMillan, Julian Glynn, Murray Orpin
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Abstract
Processes for preparing polystyrene-phenolic foam composites and precursor compositions are described. The processes yield composites having advantageous properties particularly useful in insulation and fire resisting applications.
Claims16
A process for preparing a polystyrene foam composite comprising the steps of:
- a) forming a mixture of expandable thermoplastic microspheres, reactive phenolic resole resin and expandable polystyrene particles in the presence of an acidic catalyst;
- b) conditioning the mixture to partially cure the reactive phenolic resole resin;
- and
- c) further curing the conditioned mixture by contacting with steam to form the composite.
1 more element
Dependencies are inferred from the claim text.