Abstract: An electronic device having a heat source disposed in direct alignment with a battery for the device and a thermal management system in thermal contact with the heat source. The thermal management system may extend from at least a first surface of the battery to a second surface of the battery. The second surface of the battery may be adjacent a heat dissipation element. The thermal management system may further be in thermal contact with the heat dissipation element. Further a portion of the thermal management system extends along the first and second surfaces of the battery and has a sufficiently high anisotropic ratio to avoid the transfer of heat to the battery to the extent to inhibit the functioning of the battery.

Abstract: An electronic device having a heat source disposed in direct alignment with a battery for the device and a thermal management system in thermal contact with the heat source. The thermal management system may extend from at least a first surface of the battery to a second surface of the battery. The second surface of the battery may be adjacent a heat dissipation element. The thermal management system may further be in thermal contact with the heat dissipation element. Further a portion of the thermal management system extends along the first and second surfaces of the battery and has a sufficiently high anisotropic ratio to avoid the transfer of heat to the battery to the extent to inhibit the functioning of the battery.

Abstract: An improved white food casing comprising regenerated cellulose containing titanium dioxide pigment in a weight ratio of less than 0.5 to regenerated cellulose in the casing and containing from about 0.3 to about 1.2 milligrams per square meter of casing of a water insoluble violet pigment. The titanium dioxide pigment and violet pigment are uniformly dispersed in the regenerated cellulose without agglomeration. The food casing usually has an optical density at least as high as a similar food casing containing fifteen percent more titanium dioxide pigment and no violet pigment. The food casing desirably contains titanium dioxide in an amount of less than 15 and preferably less than 13 grams per square meter of food casing. The invention also includes an improved method for making a white food casing comprising cellulose regenerated from viscose having titanium dioxide incorporated therein; wherein the improvement comprises uniformly dispersing titanium dioxide pigment into viscose at a ratio of less than 0.