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. 04, 2021
Filed:
Mar. 26, 2018
Dainichiseika Color & Chemicals Mfg. Co., Ltd., Tokyo, JP;
Hiroyuki Shimanaka, Tokyo, JP;
Yoshikazu Murakami, Tokyo, JP;
Dainichiseika Color & Chemicals Mfg. Co., Ltd., Tokyo, JP;
Abstract
Provided are: a novel polymerization technique by which a polymer having a controlled molecular weight or molecular weight distribution or a polymer having a desirably regulated, complicated structure can be obtained using commercially available general-purpose materials without using any radical polymerization initiator, or any special material for use in living radical polymerization and without requiring any strict polymerization conditions; a radical polymerization initiation group-containing compound for use in the technique; and a polymer obtained thereby. Specifically, provided are: a method for producing a polymer, the method including a polymerization step of mixing and warming (1) a radically polymerizable monomer, (2) an organic compound having at least one group introduced in a molecule thereof, the group functioning as a polymerization initiation group for the monomer and having a structure represented by formula 1, and (3) a chloride ion-containing and/or bromide ion-containing compound selected from among specific compounds, thereby initiating radical polymerization from the group having the structure, the radical polymerization accompanying a termination reaction; a radical polymerization initiation group-containing compound; and a polymer.