Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Reexamination Certificate
2006-05-16
2006-05-16
Mruk, Brian P. (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
C510S474000, C510S535000, C514S023000, C514S054000, C536S123100, C536S124000
Reexamination Certificate
active
07045494
ABSTRACT:
A process for making an alkyl and/or alkenyl oligoglycoside preparation having a magnesium salt concentration of less than about 10 ppm involving the steps of: (a) providing an alkyl and/or alkenyl oligoglycoside preparation having an active substance content of from about 10 to 70% by weight, based on the weight of the preparation; (b) providing an acid component; (c) adjusting the pH of the alkyl and/or alkenyl oligoglycoside preparation to from about 4 to 9.5 by combining the acid component with the alkyl and/or alkenyl oligoglycoside preparation to form a pH-modified alkyl and/or alkenyl oligoglycoside preparation; (d) providing a column charged with an ion exchange resin; and (e) purifying the pH-modified alkyl and/or alkenyl oligoglycoside preparation by passing it through the column of step (d) at a viscosity of from about 20 to 6,000 mPas, and at a temperature of from about 20 to 90° C. to form the alkyl and/or alkenyl oligoglycoside preparation having a magnesium salt concentration of less than about 10 ppm.
REFERENCES:
patent: 6100391 (2000-08-01), Gibson et al.
patent: WO 99/26957 (1999-06-01), None
Biermann et al., Alkylpolyglucoside—Technologie und Eigenschaften, Starch Starke, vol. 45, 1993, pp. 281-288, no month given.
Barry Salka, “Alkyl Polyglycosides”, Cosmetics & Toiletries, vol. 108, 1993, pp. 89-94, Mar. 1993.
Kahre et al., Alkylpolyglycoside—Ein neues Konzept fuer Pflege und Vertraeglichkeit in der Kosmetei, SÖFW Journal, vol. 121, 1995, pp. 598, 600, 601, 604-611, Aug. 1995.
Albers Thomas
Eskuchen Rainer
Koehler Michael
Schmid Karl Heinz
Cognis Deutschland GmbH & Co. KG
Daniels John F.
Mruk Brian P.
Seifert Arthur G.
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