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:
Dec. 27, 2005
Filed:
Mar. 05, 2002
Shigeki Hamamoto, Himeji, JP;
Nobutaka Fujimoto, Himeji, JP;
Makoto Katou, Himeji, JP;
Kazuyuki Miura, Himeji, JP;
Shigeki Hamamoto, Himeji, JP;
Nobutaka Fujimoto, Himeji, JP;
Makoto Katou, Himeji, JP;
Kazuyuki Miura, Himeji, JP;
Sumitomo Seika Chemicals Co., Ltd., Hyogo, JP;
Abstract
According to a process for production of alkylene oxide polymers offered by the present invention, an alkylene oxide is subjected to a polymerization reaction under presence of a catalyst in a solvent containing an aliphatic hydrocarbon having from five to seven carbon atoms and a branched structure. The aliphatic hydrocarbon is provided preferably by 2-methyl pentane, 3-methyl pentane, 2,3-dimethyl pentane, 2,4-dimethyl pentane, etc. The alkylene oxide is provided preferably by ethylene oxides and/or propylene oxides.