Compositions – Electrically conductive or emissive compositions – Free metal containing
Patent
1995-10-23
1998-06-09
Kopec, Mark
Compositions
Electrically conductive or emissive compositions
Free metal containing
252500, 252510, 252514, 106272, H01B 122, C08L 9106
Patent
active
057628300
ABSTRACT:
This invention discloses a thermally expandable composition for use in actuators. The composition contains about 10-50 volume percent hollow glass spheres in a wax or a polymer. The spheres contain a conducting coating affixed thereon. During use in an actuator, the composition is heated to melt the wax or polymer, when the density of the spheres substantially match the density of the melt, thereby substantially eliminating phase separation. The high thermal conductivity of the composition increases the speed of heat transfer out of the composition during the cooling cycles.
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Haider M. Ishaq
Long Barbara J.
Menczel Joseph D.
Stamatoff James B.
Hoechst Celanese Corporation
Kalyanaraman Palaiyur S.
Kopec Mark
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