Abstract: A dairy inflation (10) for use in a milking device, including a flexible sleeve (24) adapted to surround a teat, wherein the flexible sleeve (24) includes a clear polyurethane composition. The clear polyurethane composition can be derived from a polyol mixture including a glycerine-based polyol having an average molecular weight in a range from about 200 g/mol to about 300 g/mol, and a first hydroxyl value; and a glycol-based polyol having an average molecular weight in a range from about 600 g/mol to about 700 g/mol, and a second hydroxyl value; and about 0.65 to about 1.05 stoichiometric equivalents of a cross-linking agent comprising a plurality of isocyanate groups, wherein the stoichiometric equivalents is based on a sum of the first and second hydroxyl values.

Abstract: There is described a multi-pane glazing unit, having top and bottom edges and two side edges. The glazing unit includes two parallel glazing sheets enclosing a vertical cavity. A convective-flow barrier is position adjacent to and extending substantially along the bottom edge of the glazing unit within the cavity. In operation, cold-side convective flow is prevented by the barrier from directly reaching a bottom region of the warm-side glazing sheet.