Cleaning implement comprising a modified open-cell foam

US8277935B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Denis Alfred Gonzales · Brussels, BE
• Iris Bogaerts · Mechelen, BE
• Karl Haberle · Speyer, DE
• Wolfgang Schrof · Neuleiningen, DE
• Volker Schwendemann · Neustadt, DE
• Stefan Frenzel · Weinheim, DE

Key dates

• Filing date: Dec 19, 2006
• Grant date: Oct 2, 2012
• Expiry date: Apr 16, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/249992
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A cleaning implement comprises a modified open-cell foam with a density in the range from about 5 to about 1,000 kg/m3 and with an average pore diameter in the range from about 1 μm to about 1 mm, comprising an amount in the range from about 1 to about 2,500% by weight, based on the weight of the unmodified open-cell foam, of at least about one water-insoluble polymer (b), selected from polystyrene, styrene copolymers, polybutadiene, butadiene copolymers, polyvinylesters, polyvinylethers, copolymers from (meth)acrylic acid with at least one (meth)acrylate, and polyurethanes, with the proviso that styrene-acrylonitrile-C1-C10-alkyl (meth)acrylate terpolymers, styrene-butadiene-n-butyl acrylate terpolymers, and styrene-maleic anhydride copolymers are excluded.