High temperature stable sandwich panels
AssigneeHuntsman International LLC
InventorsNorman Chi Su, John Connolly
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Abstract
The present disclosure provides a reaction mixture for producing polyurethane/polyisocyanurate sandwich panels having a high temperature stability of up to about 230 Deg C. The polyurethane/polyisocyanurate sandwich panels may be used in connection with the production of automotive structural parts. The present disclosure also provides a process for the production of a polyurethane/polyisocyanurate molded article which exhibits high temperature stability.
Claims17
A reaction mixture for use in the production of polyurethane/polyisocyanurate sandwich panels which exhibit high temperature stability, the reaction mixture comprising:
- (i) a polyol;
- (ii) a polyisocyanate;
- (iii) a catalyst, (iv) a blowing agent;
- and optionally (v) at least one chain extender or crosslinking agent and optionally (vi) an additive and where the reaction mixture has an isocyanate index greater than 200.
Dependencies are inferred from the claim text.