Peter T Keillor

53207530, Jun 14, 1994

May 17, 1993

8/061877

Peter T. Keillor - Lake Jackson TX
William A. Kirksey - Midland MI

The Dow Chemical Company - Midland MI

B01D 3304
B01D 33044

210398

Filtration process and filters for use with materials such as, but not limited to, melts, utilizing a band of filter medium sealed in the filter rollers to seal the material from the outside. In one embodiment, the seal rollers reduce to a minimum the leakage of melt to the outside and make it possible to advance the filter medium through the filter continuously. In various embodiments, the filter medium can be advanced either by the takeup spool or by driving the seal rollers and the rate of movement of the filter medium through the filter can be controlled to maintain a constant pressure drop across the filter. Two component wear-resistant seals are also provided. Maintaining constant conditions through continuous advancement of the filter medium during filtration yields higher product quality and dimensional stability.

20020180099, Dec 5, 2002

Jun 19, 2002

10/175729

Peter Keillor - Lake Jackson TX, US

B29C047/78

264/211240

A process and apparatus for preparing compositions including one or more resinous materials and/or other ingredients using a continuous reactor combined with a slurry vessel for feeding a slurry feed stream to the reactor. More specifically, the process and apparatus prepares a composition by feeding a reactive slurry of one or more monomers and/or oligomers into a continuous reactor extruder to manufacture one or more resinous materials. Optionally, the resinous material may be continuously conveying to a mixer for continuously mixing the resinous material with other ingredients to form a blended composition.