Compositions – Oxidative bleachant – oxidant containing – or generative – Free halogen or oxy-halogen acid type
Reexamination Certificate
2007-08-30
2010-12-28
Anthony, Joseph D (Department: 1796)
Compositions
Oxidative bleachant, oxidant containing, or generative
Free halogen or oxy-halogen acid type
C252S187270, C252S186250, C422S037000
Reexamination Certificate
active
07857990
ABSTRACT:
Describes a composition comprising a mixture of (1) a major amount of calcium hypochlorite, e.g., hydrated calcium hypochlorite, and (2) a minor amount of calcium hypochlorite-compatible hydrophobic additive (other than discrete particulate Group IIA or IIIA metal stearates) in amounts sufficient to provide the composition with reduced hydrophilic properties. The composition has a solution rate in water at standard conditions that is less than the calcium hypochlorite used to prepare the composition, but sufficient for the intended application. Describes also calcium hypochlorite compositions in which the hydrophobic additive is an organo-silicon material, or a metal oxide, e.g., amorphous precipitated silica, treated with a hydrophobizing agent, such as an organo-silicon material, e.g., an organo-silane and/or organo-siloxane material.
REFERENCES:
patent: 3953354 (1976-04-01), Faust
patent: 4035484 (1977-07-01), Faust et al.
patent: 4053429 (1977-10-01), Tatara et al.
patent: 4108792 (1978-08-01), Farmer et al.
patent: 4118524 (1978-10-01), Saeman
patent: 4692335 (1987-09-01), Iwanski
patent: 4741858 (1988-05-01), Choy et al.
patent: 4747978 (1988-05-01), Loehr et al.
patent: 4865760 (1989-09-01), Johnson et al.
patent: 5049385 (1991-09-01), Wiedrich et al.
patent: 5205961 (1993-04-01), Shenefiel et al.
patent: 5384102 (1995-01-01), Ferguson et al.
patent: 5427748 (1995-06-01), Wiedrich et al.
patent: 5801262 (1998-09-01), Adams
patent: 5908660 (1999-06-01), Griffith et al.
patent: 5919298 (1999-07-01), Griffith et al.
patent: 5936031 (1999-08-01), Woodgate et al.
patent: 6298871 (2001-10-01), Pickens et al.
patent: 6776926 (2004-08-01), Martin
patent: 6894398 (2005-05-01), Pon
patent: 6995129 (2006-02-01), Olson et al.
patent: 7153438 (2006-12-01), Souter et al.
patent: 7201856 (2007-04-01), Souter et al.
patent: 7431863 (2008-10-01), Pickens
patent: 2003/0212228 (2003-11-01), Dai et al.
patent: 2004/0217326 (2004-11-01), Souter et al.
patent: 2005/0233900 (2005-10-01), Smith et al.
patent: 2006/0164029 (2006-07-01), Suzuki et al.
patent: 2007/0125979 (2007-06-01), Lei et al.
“Periodic Classification or Chart of the Elements”, General Chemistry, Theodore L. Brown; 1963, Charles E. Merrill Books, Inc.
Mohnot Shantilal M.
Okel Timothy A.
Pickens Stanley R.
Ryan Patrick
Schoenman Erik A.
Anthony Joseph D
Pingitore Linda
PPG Industries Ohio Inc.
Stein Irwin M.
LandOfFree
Calcium hypochlorite composition does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Calcium hypochlorite composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calcium hypochlorite composition will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4180906