Microcellular Poly (vinyl Chloride) Structures
Introduction A novel process for continuous production of microcellular foams has been developed and applied to make microcellular profiles from PVC. Technology description Researchers at the UW have developed microcellular poly (vinyl) chloride polymeric structures made in an extrusion or injection molding process. The articles have an average cell size of less than 100 microns and specific tensile strength ranging from 15 MPa to 20 MPa. Specific tensile modulus ranges from 2 GPa to 3 GPa. The articles may be manufactured from various grades of PVC. Final density of the products range from 0.8 gm/cm3 to 1.05 gm/cm3. Business opportunity Using this process unique new morphologies can be created using PVC. Reduced PVC density has been achieved in the range of 0.8 g/cm3 to 1.05 g/cm3, with cell sizes ranging from 20 to 80 micrometers. To date, no other process has been able to produce extruded PVC foams with these cell sizes. Stage of development Initial data and working prototypes exist for this technology. Intellectual property position This technology is available for licensing. The UW has applied for patent protection on this technology.
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