Method of making a breathable and liquid impermeable web

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6605172
SERIAL NO

09669329

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method is disclosed for modifying the physical characteristics of a web which involves passing the web between at least one pair of interengaged rolls to incrementally stretch the web, and then withdrawing the incrementally stretched web from between the rolls under tension. A web modified according to the disclosed method has desirable breathability and liquid impermeability, as well as extensibility and a soft, cloth-like textured surface. One embodiment of the present invention provides a breathable web comprising a microporous film exhibiting an MVTR of at least about 2000 g/m.sup.2 /24hr, a dynamic impact value of less than about 10 g/ m.sup.2, a bubble pressure at least about 45 psi, and an air flow of at least about 2 liters/m.sup.2 /s.

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Patent Owner(s)

Patent OwnerAddress
PROCTER & GAMBLE COMPANY THEONE PROCTER & GAMBLE PLAZA ATTENTION CHIEF PATENT COUNSEL CINCINNATI OH 45202

International Classification(s)

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  • 2000 Application Filing Year
  • D02J Class
  • 20 Applications Filed
  • 5 Patents Issued To-Date
  • 25 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20002001200220030255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, Barry Jay Reading, OH 15 548
Dobrin, George Christopher Mason, OH 56 2309
Mansfield, Todd Leon Cincinnati, OH 40 1461
Polat, Suna Cincinnati, OH 10 453

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Patent Citation Ranking

  • 208 Citation Count
  • D02J Class
  • 95.65 % this patent is cited more than
  • 22 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1201101 - 1011 - 2021 - 300123456789101112131415161718192021

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