Method for preparing polyamide by anion ring-opening polymerization and polyamide prepared thereby
AssigneeHanwha Chemical Corporation
InventorsSeung Hoe DO, Jin Seo LEE, Kyung Ho KWON, Do Kyoung KIM, Hye Yeon LEE, Kyoung Won YIM
Life of this patent
Estimating the term…
Abstract
Provided is a method for preparing a polyamide by an anionic polymerization reaction, wherein lactam, and based on 100 parts by weight of the entire lactam, 0.01 parts by weight to 20 parts by weight of an alkali metal as an initiator, 0.3 parts by weight to 10 parts by weight of a molecular weight controller, and 0.002 parts by weight to 1.0 part by weight of carbon dioxide as an activator may be included.
Claims14
A method for preparing a polyamide by an anionic polymerization reaction that is a method for preparing a polyamide by anionic ring-opening polymerization, wherein lactam, and based on 100 parts by weight of the entire lactam, 0.01 parts by weight to 20 parts by weight of an alkali metal as an initiator, 0.3 parts by weight to 10 parts by weight of a molecular weight controller, and 0.002 parts by weight to 1.0 part by weight of carbon dioxide as an activator are included.
Dependencies are inferred from the claim text.