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1. (WO2018143155) PAPER ADDITIVE, METHOD FOR PRODUCING SAME, AND PAPER CONTAINING PAPER ADDITIVE

Pub. No.:    WO/2018/143155    International Application No.:    PCT/JP2018/002860
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Wed Jan 31 00:59:59 CET 2018
IPC: D21H 17/56
C08G 69/48
Applicants: SEIKO PMC CORPORATION
星光PMC株式会社
Inventors: HIRAKAWA Fumiya
平川 文弥
FUJIWARA Yasushi
藤原 康史
Title: PAPER ADDITIVE, METHOD FOR PRODUCING SAME, AND PAPER CONTAINING PAPER ADDITIVE
Abstract:
The purpose of the present invention is to provide a paper additive having a superior effect for increasing paper thickness while imparting size performance, and a method for producing paper having enhanced paper thickness by using the paper additive. A paper additive characterized by containing a compound (A) obtained by reacting a polyalkylene polyamine (a) having three or more amino groups per molecule, a C8-C22 monovalent fatty acid (b), a polyvalent carboxylic acid (c), a urea (d), and an alkylating agent (e). The compound (A) preferably has a carboxyl group or a salt thereof.