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:
Oct. 07, 2014
Filed:
Dec. 17, 2010
Hiroyuki Kitayama, Yao, JP;
Hironao Sajiki, Gifu, JP;
Yasunari Monguchi, Gifu, JP;
Rhodia Operations, Paris, FR;
Abstract
A method for producing a polyamine is described that provides excellent safety, a lot of flexibility regarding a variety of its productions, and that can produce a polyamine of high-molecular weight easily and inexpensively. The polyamine includes a combination of units of formula (1) or (2):—(NH—(CH)—NH—(CH))—  (1)(in the formula (1), independently in every unit, 'm' indicates an integral number of 0 or more and 'n' indicates an integral number of 3 or more.)—(NH—y—NH —Z)—  (2)(in the formula (2), independently in every unit, “Y” and “Z” are the same as or different from each other, and they indicate substituted or unsubstituted groups including unsaturated aliphatic, cyclic aliphatic or aromatic hydrocarbon radicals that can include hetero atoms.).