System and method for making extruded, composite material

Stock material or miscellaneous articles – Structurally defined web or sheet – Including grain – strips – or filamentary elements in...

Reexamination Certificate

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C428S113000, C428S220000, C428S297400, C428S326000, C428S332000, C428S401000, C428S484100, C524S014000, C524S016000, C524S027000

Reexamination Certificate

active

07449229

ABSTRACT:
Systems and methods for making a material composition are disclosed. The method includes mixing a thermoset polymer, a petroleum distillate, a release agent, and a catalyst to form an admixture. A cellulosic material is mixed with the admixture to form a generally homogenous furnish. The system includes a mixing chamber, a feeding chamber, and a die. The die includes a pressing chamber, which has a volume formed by first and second platens. The platens are in facing opposition to one another and have a length extending continuously from an entrance to an exit of the die. The platens have a plurality of orifices and heating elements disposed along the length. The platens are disposed in first and second positions. The first position forms a first volume and the second position forms a second volume.

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