Disposable products
AssigneeMinnesota Mining and Manufacturing Company
InventorsKirk K. Hwang, Linda W. Suszko
Life of this patent
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Abstract
A disposable article such as a diaper or feminine hygiene product having a rattle-free, liquid impermeable, vapor permeable, microporous, polymeric film having pores defining passages extending therethrough, the passages being partially filled with a rattle-reducing additive material and a method for making same is disclosed.
Claims18
A disposable article comprising a top sheet, an intermediate liquid absorbent core and an outer backsheet, said backsheet being a rattle-free, liquid impermeable, vapor permeable, microporous film with a rattle-reducing additive material partially filling said micropores uniformly distributed through said film, said film having a moisture vapor transmission rate of at least 1000 grams per square meter per 24 hours at 23.degree. C. and 50% relative humidity and being embossed such that said embossing forms translucent regions up to about 50% of the total surface area of said film.
A rattle-free, liquid impermeable, vapor permeable, microporous film comprising a crystallizable thermoplastic polymer, a nucleating agent and a rattle-reducing additive material partially filling said micropores and uniformly distributed through said film, said film having a moisture vapor transmission rate of at least 1000 grams per square meter per 24 hours at 23.degree. C. and 50% relative humidity and an air permeability Gurley number of less than 500 seconds per 50 cc, and said film being embossed such that said embossing forms translucent regions up to about 50% of the total surface area of said film.
Dependencies are inferred from the claim text.