	US 11,877,710 B2
	Cleaning implement comprising a modified open-cell foam
David John Pung, Loveland, OH (US); Megan Showell Roberts, Overland Park, KS (US); and Johann Martin Szeifert, Mannheim (DE)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Jan. 18, 2022, as Appl. No. 17/577,585.
Application 17/577,585 is a continuation of application No. 15/815,733, filed on Nov. 17, 2017, granted, now 11,259,680.
Claims priority of provisional application 62/425,631, filed on Nov. 23, 2016.
Prior Publication US 2022/0133119 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C08J 9/04 (2006.01); A47L 13/17 (2006.01); C08G 12/32 (2006.01); C11D 11/00 (2006.01); C11D 17/04 (2006.01); B32B 5/18 (2006.01); C08G 8/08 (2006.01); A47L 13/16 (2006.01); C08G 12/30 (2006.01)

CPC A47L 13/17 (2013.01) [A47L 13/16 (2013.01); B32B 5/18 (2013.01); C08G 8/08 (2013.01); C08G 12/30 (2013.01); C08G 12/32 (2013.01); C08J 9/04 (2013.01); C11D 11/0023 (2013.01); C11D 17/049 (2013.01); C08G 2110/005 (2021.01); C08J 2201/022 (2013.01); C08J 2205/08 (2013.01); C08J 2323/06 (2013.01); C08J 2361/28 (2013.01)]

20 Claims

1. A cleaning implement comprising a foam, the foam comprising a crosslinked mixture of melamine-formaldehyde and from about 0.1 to about 5 weight % of at least one linear polymer with a number average molecular weight M_nin the range from 500 to 10,000 g/mol, wherein the foam has a compression deflection force above 3.25 psi, and the cleaning implement is obtained by foaming and crosslinking a mixture of a melamine-formaldehyde precondensate and the linear polymer.