Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2008-04-22
2008-04-22
Jiang, Shaojia Anna (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S099000, C536S100000, C536S124000, C536S127000
Reexamination Certificate
active
07361753
ABSTRACT:
The invention relates to a method for the production of at least alkylated, non-ionic cellulose ethers, whereby at least 10% of all hydroxy groups contained therein are alkylated and which may flocculate in water, within a temperature range of 45 to 95° C. The invention is characterized in that at least one surfactant in solid, liquid, or solution form is added to the cellulose for production of the cellulose ether.
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Doenges Reinhard
Hammes Alf
Jiang Shaojia Anna
Robert & Robert, LLP
SE Tylose GmbH & Co. KG
White Everett
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