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1. (WO2017150142) HOT-MELT ADHESIVE

Pub. No.:    WO/2017/150142    International Application No.:    PCT/JP2017/004895
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Sat Feb 11 00:59:59 CET 2017
IPC: C09J 175/04
C08G 18/66
C09J 11/06
Applicants: SANYO CHEMICAL INDUSTRIES, LTD.
三洋化成工業株式会社
Inventors: IMAI, Masato
今井 政登
SHIMADA, Tetsuya
島田 哲也
Title: HOT-MELT ADHESIVE
Abstract:
The purpose of the present invention is to provide a hot-melt adhesive which has a reduced temperature dependence, exhibits flowability immediately upon heating to above the melting point, and has an excellent rupture tensile strength. The hot-melt adhesive of the present invention comprises a thermoplastic urethane resin (F) produced from monomers including the following essential constituent monomers: a polyol (A) having an aromatic ring; a diisocyanate (B) having symmetry; one or more glycols (C) which are poly(methylene glycol) (C1) represented by general formula (1) and/or poly(ethylene glycol) (C2) represented by general formula (2); and a high-molecular-weight polyol (D). HO-(CH2)n-OH (1) [n is an integer of 2-8.] HO-(CH2CH2O)m-H (2) [m is an integer of 2-8.]