Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Patent
1997-04-17
1998-12-08
Ryan, Patrick
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
264166, 264167, 264175, 264310, 425335, 425371, 425DIG55, B29C 3916
Patent
active
058465774
ABSTRACT:
A continuously operating press for pressing a web of material together has a press zone at an input side a calibration zone at an output side. This press may be used in the formation of particle board by applying heat and pressure to press the web of material together to form the particle board. Preferably, the press has a lower press platen and an upper press platen that are pressed together to form the particle board. Both the lower press platen and the upper press platen preferably have a PTFE composite pressure pad. This composite pressure pad may have a layer of virgin PTFE and a layer of filled PTFE. The layer of filled PTFE is preferably partially compressed at a pressure of about 14.7 psi. After which, the layer of filled PTFE is preferably compression molded with the layer of virgin PTFE to form a composite. This composite may also be sintered and coined.
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"Selecting the Right `Telflon` TFE Compound for Best Performance", J. of Teflon, 1972, 13(2).
Dalton Robert E.
Rudner Myron A.
Leyson Joseph
Ryan Patrick
LandOfFree
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