US 9,809,693 B2
Method of dewatering in a continuous high internal phase emulsion foam forming process
Wei-ling Siew, Belleville (CA); Jiajie Zhang, Belleville (CA); and Aditya Garg, Belleville (CA)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Oct. 20, 2016, as Appl. No. 15/298,909.
Application 15/298,909 is a continuation of application No. 13/849,873, filed on Mar. 25, 2013, granted, now 9,481,777.
Claims priority of provisional application 61/618,342, filed on Mar. 30, 2012.
Prior Publication US 2017/0037213 A1, Feb. 9, 2017
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 67/00 (2017.01); C08J 9/28 (2006.01); C08J 9/228 (2006.01); B29C 67/20 (2006.01)
CPC C08J 9/283 (2013.01) [B29C 67/202 (2013.01); C08J 9/228 (2013.01); C08J 2201/028 (2013.01); C08J 2205/05 (2013.01); C08J 2300/00 (2013.01)] 20 Claims
OG exemplary drawing
1. A method for removing an aqueous phase from an open-celled foam, the method comprising:
providing a belt comprising a cross directional width;
providing an open-celled foam;
providing a vacuum box, wherein the vacuum box comprises a nip insert, wherein the nip insert is located below the vacuum box and is in direct contact with the vacuum box;
placing the open-celled foam on the belt; and
passing the open-celled foam over the vacuum box to remove a saturated aqueous phase.