Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing compound containing saccharide radical
Reexamination Certificate
2005-05-23
2011-11-08
Ariani, Kade (Department: 1651)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing compound containing saccharide radical
C435S104000, C435S179000, C536S002000, C536S003000, C536S052000, C536S056000, C536S084000, C106S162900, C106S205010
Reexamination Certificate
active
08053216
ABSTRACT:
A new method to produce formulations of bacterial cellulose that exhibit improved viscosity-modifying properties particularly with low energy applied to effectuate viscosity changes therewith is provided. Such a method includes the novel co-precipitation with a water soluble co-agent that permits precipitation in the presence of excess alcohol to form an insoluble fiber that can than be utilized as a thickener or suspension aid without the need to introduce high energy mixing. Such bacterial cellulose properties have been available in the past but only through highly labor and energy intensive processes. Such an inventive method as now proposed thus provides a bacterial cellulose-containing formulation that exhibits not only properties that are as effective as those for previous bacterial celluloses, but, in some ways, improvements to such previous types. Certain end-use compositions and applications including these novel bacterial cellulose-containing formulations are also encompassed within this invention.
REFERENCES:
patent: 5144021 (1992-09-01), Arie et al.
patent: 5620706 (1997-04-01), Dumitriu et al.
patent: 5951910 (1999-09-01), Skaggs et al.
patent: 6017740 (2000-01-01), Kouda et al.
patent: 6069136 (2000-05-01), Tahara et al.
patent: 6359040 (2002-03-01), Burdick
patent: 6495190 (2002-12-01), Yaginuma et al.
patent: 2007/0027108 (2007-02-01), Yang et al.
patent: WO 97/48402 (1997-12-01), None
patent: WO 01/05838 (2001-01-01), None
Plank, J., Appl. Microbiol Biotechnol, 2004, vol. 66, p. 1-9.
Mei et al., Journal of Food Science, 2002, vol. 67, No. 5, p. 1964-1968.
Merriam-Webster Online Dictionary definition of precipitation.
Omoto et al., Handbook of Hydrocolloids Woodhead Publishing, 2001, Chapter 18, Bacterial cellulose, p. 321-330.
Giuliano Copetti, et al., Synergistic gelation of xanthan gum with locust bean gum: a rheological investigation, Journal (1997) 14: 951-961, Chapman & Hall, Italy.
Johann Plank, Applications of biopolymers and other biotechnological products in building materials, Mini-Review (2004) 66: 1-9, Springer-Verlag, Germany.
Schroter K., et al., “Xanthomonas campestris pv. campestris secretes the endogkicanases ENGXCA and ENGXCB: construction of an endoglucanase-deficient mutant for industrial xanthan production, ”Appl Microbiol Biotechnol (2001), pp. 727-733., (vol. 55), Springer-Verlag, Germany.
Omoto, T., et al., “Bacterial Celulose”,Handbook of Hydrocolloids, 2000, p. 321-330.
Brinkmann David F.
Chen You Lung
DiMasi Don
Morrison Neil A.
Talashek Todd A.
Ariani Kade
CP Kelco U.S. Inc.
Sutherland & Asbill & Brennan LLP
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