Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2007-07-24
2007-07-24
Jiang, Shaojia Anna (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S063000, C536S084000, C536S095000, C536S099000, C536S102000, C536S104000, C536S105000, C536S110000
Reexamination Certificate
active
10421973
ABSTRACT:
Polysaccharide aldehydes are prepared using selective oxidation involving the use of nitroxyl radical mediated aqueous oxidation with a limited amount of oxidant and defined reaction conditions. These polysaccharide aldehyde derivatives having maximum effective aldehyde and minimal carboxylic acid levels making them especially useful as wet, temporary wet and dry strength additives for paper.
REFERENCES:
patent: 2813093 (1957-11-01), Caldwell et al.
patent: 3062652 (1962-11-01), Jeffreys et al.
patent: 3086969 (1963-04-01), Slager
patent: 3553193 (1971-01-01), Leroy et al.
patent: 3632802 (1972-01-01), BeMiller et al.
patent: 3691153 (1972-09-01), Vemuri
patent: 4663448 (1987-05-01), Chiu
patent: 4675394 (1987-06-01), Solarek et al.
patent: 4731162 (1988-03-01), Solarek et al.
patent: 4780339 (1988-10-01), Lacourse et al.
patent: 5334756 (1994-08-01), Likibi et al.
patent: 5504246 (1996-04-01), Likibi et al.
patent: 5698688 (1997-12-01), Smith et al.
patent: 5700917 (1997-12-01), Chiu et al.
patent: 6004916 (1999-12-01), Mills et al.
patent: 6087135 (2000-07-01), Kierulff
patent: 6228126 (2001-05-01), Cimecioglu et al.
patent: 6368456 (2002-04-01), Cimecioglu et al.
patent: 6540876 (2003-04-01), Cimecioglu et al.
patent: 6586588 (2003-07-01), Cimecioglu et al.
patent: 2001/0034442 (2001-10-01), Bragd et al.
patent: 197 46 805 (1999-04-01), None
patent: 1330122 (1973-09-01), None
patent: WO 95/07303 (1995-03-01), None
patent: WO 96/38484 (1996-12-01), None
patent: WO 99/23117 (1999-05-01), None
patent: WO 99/23240 (1999-05-01), None
patent: WO 00/50388 (2000-08-01), None
patent: WO 00/50462 (2000-08-01), None
patent: WO 00/50463 (2000-08-01), None
patent: WO 00/50621 (2000-08-01), None
patent: WO 01/83887 (2001-11-01), None
J. Bobbitt et al., “Organic Nitrosonium Salts as Oxidants in Organic Chemistry”,Heterocycles, vol. 27, No. 2, 1988, pp. 509-533.
de Nooy et al., “Selective Oxidation of Primary Alcohols Mediated by Nitroxyl Radical in Aqueous Solution. Kinetics and Mechanism”,Tetrahedron, vol. 51, No. 29, 1995. pp. 8023-8032.
P. Chang et al., “Oxidation of Primary Alcohol Groups of Naturally Occurring Polysaccharides with 2,2,6,6-Tetramethyl-1-Piperiding Oxoammonium Ion”,J. Carbohydrate Chemistry, 15(7), 1996, pp. 819-830.
Takuya Kitaoka, Akira Isogai, Fumihiko Onabe, “Chemical Modification of Pump Fibers by TEMPO-Mediated Oxidation”,Nordic Pulp and Paper Research Journalvol. 14 No. 4/1999.
Cimedoglu A. Levent
Thomaides John S.
Jiang Shaojia Anna
Kaiser Karen G.
National Starch and Chemical Investment Holding Corporation
White Everett
LandOfFree
Polysaccharide aldehydes prepared by oxidation method and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polysaccharide aldehydes prepared by oxidation method and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polysaccharide aldehydes prepared by oxidation method and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3782175