Abstract: A vibratory sauna having a cover rotatably connected to a lower housing that supports an elongate member adapted to support the torso of a person using the sauna. The cover forms a compartment that passes hot air over the torso by way of a blower mounted in an air duct that is positioned in a chamber formed by the lower housing and the elongate member. Hot air coils are in the duct. The elongate member is resiliently supported by the lower housing so that a vibratory device causes the elongate member to move at a predetermined tempo. A head support extends longitudinally from the lower housing. One or more systems, such as a face fan, air purifier, radio and/or cassette player with stereo speakers, may also be provided, if desired, and controls for such systems may be suitably disposed on the inside of the cover for access during use of the vibratory sauna. The vibratory sauna may include a water bed positioned on the elongate member with a pulsating mechanism creating rhythmical pulsations in the liquid.

Abstract: The invention is directed to a process extruding or melt roll calendering thermoplastic polyurethanes wherein the polyurethanes used are synthesized from p1 (a) one or more relatively high molecular weight substantially linear polyols having molecular weights in the range from 400 to 10,000(b) diphenyl methane and/or hexamethylene diisocyanate and(c) a mixture of 85 to 99% by weight of 1,4-butane diol and 1 to 15% by weight of at least one co-extender selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, diethylene 1,2-propane diol, 1,3-butane diol, 1,6-hexane diol, 2-ethyl-1,3-hexane diol, 2,2-dimethyl-1,3-propane diol, 1,4-bis-hydroxymethyl cyclohexane, hydroquinone-bis-hydroxyethyl ether, and mixtures thereof, the equivalent ratio of NCO groups in component (B) to the Zerewitinoff-active hydrogen atoms in components (A) and (C) being from 0.9:1 to 1.2:1 and the molar ratio of component (A) to (C) being from 1:20 to 5:1.