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:
May. 05, 2009
Filed:
Jun. 22, 2004
Applicants:
Shir-ly Huang, Jungli, TW;
Gia-luen Guo, Jungli, TW;
Inventors:
Shir-Ly Huang, Jungli, TW;
Gia-Luen Guo, Jungli, TW;
Assignee:
National Central University, Taoyuan, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B09B 3/00 (2006.01); C02F 3/34 (2006.01); C12N 1/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for cleavage of the ether-linkage of polyethoxylates is described. A novel pure microbial culture,TX1 (Depository No.: BCRC910228), is used under aerobic condition to cleave the ether-linkage adjacent to the carboxylated terminus or ethoxyl terminus. This method is useful to cleave sequentially ether-linkage of polyethoxylates in an aqueous buffer solution with an initial concentration of the polyethoxylates between 0.05% and 20%. This method is also effective for the cleavage of the ether-linkages in short-chain polyethoxylates with one to three ethoxyl units.