A shoe cover is a natural latex article with reduced amount of sulfur cross linking agent and accelerators including zinc dithiocarbamate that break catalytically soluble sulfur S8 sulfur rings forming sulfur linear chains. Surfactants present in the pre-vulcanization composition wets natural polyisoprene particles and permeates small sized sulfur into the interior of these particles thereby pre-vulcanizing the particles. The latex emulsion also has post-vulcanization composition with accelerators that crosslink between particles during the post vulcanization cure cycle. The dipped natural polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds and zinc segregation at the boundaries or original particles. The natural rubber films exhibit high tensile strength, tensile modulus, tear strength, elongation with low modulus of the shoe cover. The bottom surface of the shoe cover is etched to produce a slip resistant surface.

An electrophotographic member comprising: a base material; an elastic layer on the base material; and a surface layer on the elastic layer, wherein the elastic layer comprises silicone rubber, the surface layer comprises fluoro rubber, a thickness of the surface layer is 3 m or more, an elastic deformation power IT calculated from a load displacement curve, obtained with a nanoindentation test according to ISO 14577 by bringing a Vickers indenter into contact with an outer surface of the surface layer and setting a test load at 120 N, is 30 to 50%, and a Martens hardness determined by the nanoindentation test at the outer surface of the surface layer is 12.0 to 18.0 N/mm.sup.2.

A sports flooring has a treading layer that includes at least one layer of elastomeric material and a supporting layer with at least one layer of elastomeric material, wherein the supporting layer has a first arrangement of cavities with elliptical cross section.

A rocker leg configured for a vibratory apparatus includes a rocker leg body having a first end and a second end, each of the first end and the second end having a passage therethrough. A first bushing is disposed in the passage through the first end of the rocker leg body, and a second bushing is disposed in the passage through the second end of the rocker leg body. Each of the first and second bushings include an inner sleeve, an intermediate ring, an outer sleeve, a first layer of resilient material between the inner sleeve and the intermediate ring, and a second layer of resilient material between the intermediate ring and the outer sleeve. Also provided is a vibratory apparatus with a deck, at least one pair of such a rocker leg and a resilient member supporting the deck, and an eccentric drive coupled to the deck.

Various aspects of this disclosure relate to a layered polymer substrate with electrodes and conductive ink embedded in the substrate. In some embodiments, a prosthetic liner may be bonded onto the polymer substrate. The substrate may include an interconnect coupled to the electrodes via the conductive ink. The system may include a controller (e.g., an electrode controller) in communication with the electrodes via the conductive ink. The electrodes may be activated such that they may stimulate nerve fibers in a user's residual limb.

Various aspects of this disclosure relate to a layered polymer substrate with electrodes and conductive ink embedded in the substrate. In some embodiments, a prosthetic liner may be bonded onto the polymer substrate. The substrate may include an interconnect coupled to the electrodes via the conductive ink. The system may include a controller (e.g., an electrode controller) in communication with the electrodes via the conductive ink. The electrodes may be activated such that they may stimulate nerve fibers in a user's residual limb.