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1. (WO2014203750) ONE-PART MOISTURE-CURABLE POLYURETHANE COMPOSITION

Pub. No.:    WO/2014/203750    International Application No.:    PCT/JP2014/065058
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Sat Jun 07 01:59:59 CEST 2014
IPC: C08G 18/10
C08G 18/79
C08K 3/04
C08L 75/04
Applicants: THE YOKOHAMA RUBBER CO., LTD.
横浜ゴム株式会社
Inventors: ARAKI Kiminori
荒木 公範
IKEDA Akio
池田 顕雄
Title: ONE-PART MOISTURE-CURABLE POLYURETHANE COMPOSITION
Abstract:
The purpose of the present invention is to provide a one-part moisture-curable polyurethane composition which has a high shear modulus, exhibits excellent adhesion under high-temperature high-humidity environments, and has good storage stability. The one-part moisture-curable polyurethane composition according to the present invention comprises a urethane prepolymer (A), a cross-linking agent (B), carbon black (C) and a catalyst (D), wherein the cross-linking agent (B) is at least one substance selected from the group consisting of (b1) hexamethylene diisocyanate isocyanurate, (b2) hexamethylene diisocyanate allophanate, (b3) a reaction product of hexamethylene diisocyanate with trimethylolpropane and (b4) a reaction product of hexamethylene diisocyanate with glycerin, and the content of the cross-linking agent (B) is 8 to 20 parts by mass relative to 100 parts by mass of the urethane prepolymer (A).