Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1997-07-29
1999-11-23
Lusignan, Michael
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264 87, 264513, 264516, 264572, 2643281, 264DIG14, 264 48, 2642791, 264135, 264129, 4274301, 427299, 427133, B29C 4500, B05D 304
Patent
active
059894733
ABSTRACT:
A molding process in which a material with an open cell, porous structure 10 is placed, aligned or supported inside a suitable enclosed holding device. Another molding material 20 is subsequently injected into the said holding device while gas and/or pressure is sequentially applied to the said holding device, causing a synergistic interaction and joining between the said materials to take place. During the processing phase, gas is evenly dispersed throughout the porous core, effectively equalizing cavity pressure and permitting an even flow pattern to exist, encapsulating or sandwiching the said porous structure, thus forming a composite material with physical properties which are substantially greater than the individual components.
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Barr Michael
Haverty David G.
Lusignan Michael
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