Organic compounds -- part of the class 532-570 series – Organic compounds – Fatty compounds having an acid moiety which contains the...
Reexamination Certificate
2004-07-28
2008-11-25
Carr, Deborah D (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Fatty compounds having an acid moiety which contains the...
Reexamination Certificate
active
07456306
ABSTRACT:
An improved alkali earth metal stearate composition is disclosed and is prepared by reacting a fatty acid component including at least about 80% by weight stearic acid and at least about 5% by weight palmitic acid with an alkali hydroxide to form an alkali soap. An aqueous metal salt solution is then added to the soap to form the improved alkali earth metal stearate. The improved alkali earth metal stearate includes a significant amount of the dihydrate form of the stearate.
REFERENCES:
patent: 2313844 (1943-03-01), Sullivan
patent: 3876551 (1975-04-01), Laufer et al.
patent: 4731195 (1988-03-01), Olson
patent: 4777080 (1988-10-01), Harris, Jr. et al.
patent: 4800082 (1989-01-01), Karbowski et al.
patent: 5032632 (1991-07-01), Saxton
patent: 5175322 (1992-12-01), Yoshizawa et al.
patent: 5277832 (1994-01-01), Gill et al.
patent: 5364610 (1994-11-01), Merris, Jr.
patent: 5434277 (1995-07-01), Hwu et al.
patent: 5447729 (1995-09-01), Belenduik et al.
patent: 5631215 (1997-05-01), Kinsman
patent: 5952004 (1999-09-01), Rudnic et al.
patent: 6395701 (2002-05-01), Connor et al.
patent: 6437000 (2002-08-01), Mulye
patent: 6699403 (2004-03-01), Dluzenski et al.
patent: 2002/0052411 (2002-05-01), Gobel et al.
patent: 2002/0187536 (2002-12-01), Kulkarni et al.
patent: 2004/0092418 (2004-05-01), Connor et al.
patent: 2004/0092419 (2004-05-01), Connor et al.
patent: 2004/0124397 (2004-07-01), Dluzneski et al.
patent: WO 01/05430 (2001-01-01), None
patent: WO 03/011214 (2003-02-01), None
D. Beckers & S. Prugovecki, Investigation of the structural stablility of magnesium stearate . . . , downloaded Dec. 13, 2005 from www.dxcidd.com/01/0pdf/D-036.pdf.
Friedrich, Steffens, Beck & Sievers, Influence of magnesium . . . , downloaded Dec. 13, 2005 from www.pharmtech.uni-bonn.de/download/Veroeffentlichungen/friedrichAPV2002.pdf.
Koivisto, Jalonen & Laine, The effect of moisture and degassing on some physical . . . , downloaded Dec. 13, 2005 from www.physics.utu.fi/industrial/pdf/koivisto1.pdf.
Steffens & Koglin, The magnesium stearate problem, Mfg. Chem., 1993, p. 16, 17, 19.
Swaminathan & Kildsig, An examination of the moisture sorption characteristics of commercial magnesium stearate, AAPS PharmSciTech, 2001, 2 (4) article 28.
Heider Todd P.
Wolfgang Steven M.
Carr Deborah D
Mallinckrodt Inc
LandOfFree
Stearate composition and method of production thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stearate composition and method of production thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stearate composition and method of production thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4036622