"Stress-softened elastometeric films, articles, and method and a

Details "Stress-softened elastometeric films, articles, and method and a "Stress-softened elastometeric films, articles, and method and a

1994-08-08

1996-06-18

Brown, Michael A.

Surgery

Male reproductory tract shields or birth control devices

128844, 128918, A61F 602, A61F 604

Patent

active

055268234

ABSTRACT:
A stress-softened thermoplastic elastomeric (TPE) film which has been subjected to tensional deformation comprising at least uniaxial strain, and having improved textural and thermal transmissivity characteristics, as compared to a native, unstretched material. Such stress-softened thermoplastic elastomeric film may be employed in a wide variety of articles, including condoms, finger cots, tubular bandages, and the like. Condoms comprising such stress-softened TPE film are described, including condoms having a main sheath comprising stress-softened and non-stress-softened areas in a pattern or other predetermined arrangement. A variety of methods and apparatus for forming stress-softened tubular articles of thermoplastic elastomeric film is disclosed.

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