Polyisocyanurate based polymers and fiber reinforced composites
AssigneeTrimer Technologies, LLC
InventorHenry A. Sodano
Life of this patent
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Abstract
A method of making an isocyanurate polymer is disclosed. An isocyanate including at least one of an aromatic isocyanate and an aliphatic isocyanate is provided. A trimerization catalyst including at least one of an amine catalyst, an organometallic compound, and an imidazole compound is provided. A reaction mixture that is substantially free of reactive hydrogen is formed by mixing less than about twenty percent by total weight of said reaction mixture of an epoxide with said isocyanate. The trimerization catalyst is mixed with the reaction mixture. The reaction mixture is cured to produce a polymer composition including a reaction product of two or more isocyanates.
Claims29
A method of making an isocyanurate polymer, comprising the steps of:
- providing an isocyanate including at least one of an aromatic isocyanate and an aliphatic isocyanate;
- providing a trimerization catalyst including at east one of an amine catalyst, an organometallic compound, and an imidazole compound;
- forming a reaction mixture being substantially free of reactive hydrogen by mixing less than about twenty percent by total weight of said reaction mixture of an epoxide with said isocyanate;
- mixing said trimerization catalyst with said reaction mixture and being further defined by mixing a latent catalyst comprising a blocked amine catalyst in said reaction mixture;
- and
- curing said reaction mixture to produce a polymer composition including a reaction product of two or more isocyanates.
A structural element formed from an isocyanurate composition, comprising:
- a cured isocyanurate polymeric composition formed from an isocyanate reaction mixture including an isocyanate index being greater than 300;
- said reaction mixture being a blend of an isocyanate and less than about twenty percent by total weight of said reaction mixture of an epoxide and said cured isocyanurate polymeric composition and said isocyanurate polymeric composition being cured by mixing a trimerization catalyst including at least one of an amine catalyst, an organometallic compound, and an imidazole compound with said reaction mixture and being further defined by mixing a latent catalyst comprising a blocked amine catalyst in said reaction mixture;
- said structural element including a peak heat release below 65 (kW/m2) and a maximum smoke density below 50 when tested according to Part 25 Appendix F of FAR 25.283.
A method of making an isocyanurate polymer, comprising the steps of:
- providing an isocyanate including at least one of an aromatic isocyanate and an aliphatic isocyanate;
- providing a trimerization catalyst including at least one of an amine catalyst, an organometallic compound, and an imidazole compound;
- forming a reaction mixture being substantially free of reactive hydrogen by mixing a catalytic amount of an epoxide with said isocyanate and about 0.1 to 15 weight percent of a total weight of said reaction mixture with at least one of a phosphorus ester, halogenated phosphate, siloxane, halogenated compound and metal hydroxide;
- mixing said trimerization catalyst with said reaction mixture and being further defined by mixing a latent catalyst comprising a blocked amine catalyst in said reaction mixture;
- and
- curing said reaction mixture to produce a polymer composition including a reaction product of two or more isocyanates.
Dependencies are inferred from the claim text.