The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 2008
Filed:
Apr. 12, 2001
Applicants:
Alf Hammes, Goersroth, DE;
Reinhard Doenges, Bad Soden, DE;
Inventors:
Alf Hammes, Goersroth, DE;
Reinhard Doenges, Bad Soden, DE;
Assignee:
SE Tylose GmbH & Co. KG, Wiesbaden, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B 11/02 (2006.01); C08B 37/00 (2006.01); C07H 1/06 (2006.01);
U.S. Cl.
CPC ...
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.