Abstract: A Laminated Magnesium Cement (MgO) Wood Fiber Construction Board utilizes structural plywood, OSB, fiber board, or other suitable flammable building materials with a lamination of MgO board laminated to the structural substrate using an adhesive having suitable properties, manufactured in a method including but not limited to a setup/transport station, adhesive to MgO board application, lay-up, transport, compression, curing and packaging steps, whereby flame spread and smoke development for the finished structural construction board exceeds prior art testing procedures.

Abstract: A method of crystallizing an epsilon-polymorph of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.05,903,11]-dodecane (CL-20). The method comprises combining the CL-20, at least one organic solvent, and at least one nonsolvent to form a crystallization solution. The crystallization solution is saturated and heated to a temperature greater than about 60° C., such as from about 71° C. to about 94° C. The organic solvent is removed from the crystallization solution while retaining a sufficient amount of the nonsolvent to crystallize the CL-20 as the epsilon-polymorph. The nonsolvent is separated from the epsilon-polymorph of CL-20. A composition of CL-20 comprising the epsilon-polymorph having a particle density of 2.035 g/ml is also disclosed.

Abstract: A method of crystallizing an epsilon-polymorph of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.05,903,11]-dodecane (CL-20). The method comprises combining the CL-20, at least one organic solvent, and at least one nonsolvent to form a crystallization solution. The crystallization solution is saturated and heated to a temperature greater than about 60° C., such as from about 71° C. to about 94° C. The organic solvent is removed from the crystallization solution while retaining a sufficient amount of the nonsolvent to crystallize the CL-20 as the epsilon-polymorph. The nonsolvent is separated from the epsilon-polymorph of CL-20. A composition of CL-20 comprising the epsilon-polymorph having a particle density of 2.035 g/ml is also disclosed.