An earplug is provided which does not enter the ear canal but which merely blocks the entrance of the canal. The plug is made of a closed cell elastomeric foam having a tear drop elipsoid shape when viewed from above and a rectangular shape when viewed from the side. The plug is slightly compressed and placed in a blocking position behind the tragus.

The present invention is directed to a foamed product having a substantially closed cellular configuration. The foamed product is formed from a blend of asphalt with a polyvalent metal salt of anionic group containing polymers. The resultant foam product exhibits low bulk densities and pore volumes of about 85 percent or greater.

A foam generator conventionally consisting of a hollow stator (1) with a coaxial internal rotor (2) together forming an annular mixing chamber. Both stator and rotor are being provided with alternative rings of polygonal pins (4, 3) reaching within the mixing chamber, each pin having at least two ribs 11 creating a vortex trail during generation. The rate of occupancy of the pins (4, 3) is such that within a cross-sectional range for the mixing chamber between 40-90 cm.sup.2, the quotient: ##EQU...

A stable, edible anhydrous aerosol foam capable of suspending up to 50% by weight of dispersed solid particles is prepared using a foamable liquid oil, a foaming agent and a food grade propellant. The foam is a stable whip having the consistency of whipped cream and can be dispensed in repeatable and measurable doses onto a spoon. It is useful to dispense a wide variety of therapeutic agents and, in particular, as an alternative to tablets which are hard to swallow or liquid medicines having a b...

An epoxy foam product is presented which is produced by frothing in an intensive mixer an epoxy functional reactant stream and a curing agent stream in the presence of a surfactant and gaseous frothing agent. The epoxy foam product is characterized as a strong, rigid low-density foam having a fine, uniform cell size.

There is disclosed a scarf having an elongated, lightweight body of a foam material such as polyurethane foam, and which body has a plurality of spaced, transverse slits located at one end and opposing notches located at the opposite end forming a hook-like shape at the opposite end and being adjustable for use by wearers having different neck sizes when the hook-like shape is inserted through the slits.

The invention teaches the treatment of a porous substrate such as a textile material by treating the substrate with a foam, the substrate prior to treatment having a moisture content of up to 130% of the transit water content, forcing the foam into the porous substrate to enable foam transit through said substrate, causing or allowing foam collapse both at the surface interface and at the interior interface and terminating the treatment by removing or deactivating the reagent.

The invention relates to a polyurethane foam, more particularly relates to a polyurethane foam having excellent tensile strength, resistance to moist heat, resistance to heat, together with excellent waterproofness, and low impact resilience. Such a polyurethane foam is particularly useful as sealing material and the like for engineering works, construction and vehicles which require waterproofness, for example. Such a polyurethane foam is also useful as an excellent padding material for the con...

A foam material, particularly suitable for use as a midsole material for an athletic shoe, comprises polyethylene modified by an elastomer modifier and cross-linked, preferably using a peroxide cross-linking agent, to form a closed cell foam material which has superior strength properties, improved energy return and reduced sensitivity to temperature change.

A foam absorber having electromagnetic energy attenuation characteristics comprising an open cell reticulated polyurethane foam impregnated with a conductive ink applied to a surface of the foam substrate. The conductive ink is applied as by spraying to a surface of the foam, coating such surface and gradiently loading the foam with the ink by penetration of the ink in gradually decreasing amount into the foam to a final depth therein. The conductive ink is comprised of an epoxy resin carrier an...