Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1991-12-19
1993-09-21
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524607, 525435, 528491, 528502, C08L 7900, C08L 7706, C08F 610
Patent
active
052470105
ABSTRACT:
A cold compactible polymeric powder capable of being compressed into a shaped article includes a polybenzimidazole containing powder having an apparent density ranging from about 0.14 to about 0.300 gm/cm.sup.3, a compaction constant ranging from about 0.100 to about 0.500 MPa.sup.-1, and a plasticizer content ranging from about 1 to about 25 weight percent The highly porous polymeric powders are preferably formed by dissolving polymeric resins in a suitable solvent to form a polymeric solution, and atomizing the solution into a droplet atmosphere of a non-solvent.
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G. W. Halldin & M. R. Shah, Compaction of Polymer Powders SPE, 39th ANTEL, Boston May 4-7, 1981 pp. 353-355.
George E. Long, AMP Inc. Spraying Theory and Practice "Chemical Engineering" Mar. 13, 1978 pp. 73-77.
S. C. Tsai, B. Viers, and D. Botts, Effects of Pseudoplastic Behavior in Airblast Atomization of Viscous Liquids ASME Fluids Eng. Div. (1988) vol. 75 pp. 225-231.
Hughes O. Richard
Kurschus Dieter
Hoechst Celanese Corp.
Mazzarese Joseph M.
Michl Paul R.
Yoon Tae H.
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