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1. (WO2018181735) RELEASE-PAPER BASE PAPER AND METHOD FOR PRODUCING SAME, AND RELEASE PAPER

Pub. No.:    WO/2018/181735    International Application No.:    PCT/JP2018/013298
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 30 01:59:59 CEST 2018
IPC: D21H 27/00
D21H 19/20
Applicants: KURARAY CO., LTD.
株式会社クラレ
Inventors: MORIKAWA, Keisuke
森川 圭介
KAHARU, Taeko
香春 多江子
FUKUHARA, Tadahito
福原 忠仁
TACHIBANA, Yuki
立花 祐貴
Title: RELEASE-PAPER BASE PAPER AND METHOD FOR PRODUCING SAME, AND RELEASE PAPER
Abstract:
A release-paper base paper obtained by coating a substrate with a coating agent which contains a modified polyvinyl alcohol (A) and sodium acetate, wherein: the modified polyvinyl alcohol (A) is water-soluble, has double bonds derived from an unsaturated carboxylic acid or a derivative (B) thereof in a side chain in the amount of at least 0.005 mol% and less than 10 mol%, and also has 1,2-glycol bonds in the amount of 1.4-2.0 mol%, inclusive; and the content of the sodium acetate relative to the modified polyvinyl alcohol (A) is 0.01-10 mass%, inclusive. This release-paper base paper exhibits excellent silicone void filling characteristics. In addition, the release-paper base paper can be used to accelerate the curing of the silicone in a release layer, and is capable of improving the adhesion between a substrate and a release layer.