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. 12, 2015
Filed:
Apr. 23, 2008
Masaaki Ozawa, Funabashi, JP;
Keisuke Odoi, Chiyoda-ku, JP;
Hironori Atarashi, Fukuoka, JP;
Kei-ichi Akabori, Fukuoka, JP;
Toshihiko Nagamura, Fukuoka, JP;
Keiji Tanaka, Fukuoka, JP;
Masaaki Ozawa, Funabashi, JP;
Keisuke Odoi, Chiyoda-ku, JP;
Hironori Atarashi, Fukuoka, JP;
Kei-ichi Akabori, Fukuoka, JP;
Toshihiko Nagamura, Fukuoka, JP;
Keiji Tanaka, Fukuoka, JP;
Nissan Chemical Industries, Ltd., Tokyo, JP;
Kyushu University, Fukuoka-shi, JP;
Abstract
The present invention relates to a process for producing a polymer structure comprising: mixing and unifying a matrix polymer made of a linear polymer and a highly-branched polymer having hydrophilic functional groups at molecular ends and to form a structure containing the matrix polymer and the highly-branched polymer; and subjecting the obtained structure to either immersion in water and/or a hydrophilic solvent or exposure to an atmosphere of vapor of water and/or a hydrophilic solvent at a temperature ranging from a temperature lower than Tg of the matrix polymer by 30° C. to decomposition temperature of the matrix polymer; wherein the hydrophilic functional groups at the molecular ends of the highly-branched polymer are distributed in outermost surface of the polymer structure at an enhanced density. The present invention also relates to a process for producing a polymer structure in which vinyl polymer chains are grafted to at least a part of the hydrophilic functional groups.