Method of making a cyanate ester foam
| DWPI Title: Preparation of cyanate ester foam involves forming resin mixture comprising cyanate ester resin(s) and isocyanate foaming resin, adding catalyst/water mixture to resin mixture under specified condition and curing foaming resin |
| Abstract: A cyanate ester resin mixture with at least one cyanate ester resin, an isocyanate foaming resin, other co-curatives such as polyol or epoxy compounds, a surfactant, and a catalyst/water can react to form a foaming resin that can be cured at a temperature greater than 50° C. to form a cyanate ester foam. The cyanate ester foam can be heated to a temperature greater than 400° C. in a non-oxidative atmosphere to provide a carbonaceous char foam. |
| Use: Preparation of cyanate ester foam (claimed). |
| Advantage: The method provides cyanate ester foam having high temperature thermal decomposition with high yield. |
| Novelty: Preparation of cyanate ester foam involves forming a resin mixture comprising cyanate ester resin(s) and a isocyanate foaming resin, such that total resin mixture content is 100 pts. wt., adding a catalyst/water mixture to the resin mixture at temperature sufficient to keep resin mixture reacting to form foaming resin and curing the foaming resin to obtain solid cyanate ester foam. |
| Filed: 3/1/2012 |
| Application Number: US13409410A |
| Tech ID: SD 11749.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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