US 7,320,956 B2
Aqueous cleaning/treatment composition for fibrous substrates
Mitchell T. Johnson, Hudson, Wis. (US); and Vinu Patel, Oakdale, Minn. (US)
Assigned to 3M Innovative Properties Company, St. Paul, Minn. (US)
Filed on Apr. 01, 2004, as Appl. No. 10/815,277.
Prior Publication US 2005/0227893 A1, Oct. 13, 2005
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 3/37 (2006.01); C11D 17/00 (2006.01); C11D 3/00 (2006.01); B08B 3/14 (2006.01)
U.S. Cl. 510—466  [8/137; 134/42; 510/406; 510/439; 510/528] 33 Claims
 
1. An aqueous composition comprising a silsesquioxane, a surfactant, 1 to 8 weight percent of a peroxy compound, and a sequestering agent selected from the group consisting of EDTA and a salt thereof, citric acid and a salt thereof, boric acid and a salt thereof, nitrilotriacetic acid and a salt thereof, metal orthophosphates, an alkali tripolyphosphate, an alkali metal pyrophosphate, an alkali metal hexametaphosphate, and a mixture thereof, wherein said composition has a pH of 4 to 5.5.