The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2004
Filed:
Jun. 05, 2002
Applicant:
Inventors:
Shusuke Kakiuchi, Tochigi, JP;
Taeko Hayase, Tochigi, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 5/26 ;
U.S. Cl.
CPC ...
B32B 5/26 ;
Abstract
A wet cleaning sheet comprises an aqueous liquid-retaining layer having an aqueous liquid-containing polymer and a chemical-containing layer or containing a chemical which causes the polymer to release the aqueous liquid. The aqueous liquid-retaining layer and the chemical-containing layer or are formed and/or arranged in such a manner that they are kept out of substantial contact under no load applied but brought into contact with each other with a prescribed load applied whereby the aqueous liquid is gradually released from the polymer by the action of the chemical.