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OwnerAlbert C. Tanquary, Robert G. Wheelerinventors
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Textured and embossed films are described which are usefully employed in the manufacture of condom articles. In one aspect, an elastic film is provided with an embossed pattern thereon comprising from about 1,000 to about 100,000 embossments per square inch of embossed surface. In another aspect, particularly advantageous in imparting extensibility characteristics to low elasticity or inelastic films, the film is textured with longitudinal and transverse fold lines defining respective longitudinal and transverse waveform profiles and comprising planar polygonal surface portions between and bounded by adjacent longitudinal parallel fold lines and adjacent transverse parallel fold lines, with from about 100 to about 100,000 polygonal surface portions per square inch of textured film surface. Corresponding methods for making such embossed and textured films are disclosed.
An imperforate, uniform thickness elastic film having an embossed pattern thereon comprising a multiplicity of discrete embossments in a regular array, wherein the embossments are all of a similar shape and configuration, and are in spaced-apart relationship to one another in the array, with a pattern density of from about 1000 to about 100,000 embossments per square inch of embossed surface.
A film according to claim, comprising embossments with a polygonal shape.
A film according to claim, comprising embossments with a quadrilateral shape.
An imperforate, uniform thickness elastic film having an embossed pattern thereon comprising a multiplicity of discrete embossments in a regular array, wherein the embossments are all of a similar shape and configuration, and are in spaced-apart relationship to one another in the array, with a pattern density of from about 1000 to about 100,000 embossments per square inch of embossed surface, wherein the 10% modulus (M.sub.10) and 20% modulus (M.sub.20) values are at least 30% less, and whose 50% modulus (M.sub.50) value is at least 20% less, than corresponding moduli values for a corresponding unembossed film, and whose tensile strength as measured by the method of ASTM D412 is at least 10% greater than the tensile strength measured by said method for a corresponding unembossed film.
Dependencies are inferred from the claim text.