초록 ▼

Novel, improved insole composites comprising a non-woven fiber batt needle-punched to one side of a woven polymeric scrim and which is subsequently impregnated or saturated with a curable or cross-linkable polymer. The invention also presents novel processes for producing the insole composites and f

Novel, improved insole composites comprising a non-woven fiber batt needle-punched to one side of a woven polymeric scrim and which is subsequently impregnated or saturated with a curable or cross-linkable polymer. The invention also presents novel processes for producing the insole composites and for manufacturing footwear comprising the novel, improved insole composites.

대표청구항 ▼

A composite comprising a non-woven fiber batt needle-punched to a woven polymeric scrim and a cured copolymer saturant distributed throughout the interstices of the composite and distributed about the surface of the composite to render said composite resistant to air flow and effectively impervious

A composite comprising a non-woven fiber batt needle-punched to a woven polymeric scrim and a cured copolymer saturant distributed throughout the interstices of the composite and distributed about the surface of the composite to render said composite resistant to air flow and effectively impervious to molded footwear components, said copolymer saturant comprising from about 15 to about 35 percent by weight acrylonitrile, from about 20 to about 30 percent by weight styrene and from about 35 to about 65 percent by weight butadiene and being curable at temperatures between about 250°F. to about 300°F. and having a glass transition temperature between about -10°C. to about -40°C. and said composite having a tensile strength of about 100 pounds per square inch or more and a resistance to elongation of no more than about 2 percent at 20 pounds per inch load.