MOISTURE-CURABLE POLYURETHANE HOT MELT RESIN COMPOSITION, ADHESIVE, AND SYNTHETIC LEATHER

WIPO Patent Application WO/2024/084729

A1

The present invention provides a moisture-curable polyurethane hot melt resin composition which contains (A) a hot melt urethane prepolymer having an isocyanate group and (B) a flame retardant, and which is characterized in that: the hot melt prepolymer (A) uses, as a starting material, a polyol (a) that contains 50% by mass or more of a polyether polyol (a1); and the content of the flame retardant (B) is more than 15 parts by mass relative to 100 parts by mass of the hot melt urethane prepolymer (A). In addition, the present invention provides an adhesive which is characterized by containing the moisture-curable polyurethane hot melt resin composition. It is preferable that the flame retardant (B) is a phosphoric acid ester that has three or more aromatic rings.

JP3263162	INTERNAL MOLD-RELEASE AGENT COMPOSED OF SULFUR-CONTAINING PHOSPHORIC ACID ESTER
JPH0667894	[Title of the Invention] Dihalogenone neopentylglyco-rubis (mercaptocarboxylic acid ester)
JP6932752	Urethane prepolymers, adhesives, laminates, and synthetic leather

CHIJIWA HIROYUKI (JP)
KANAGAWA YOSHINORI (JP)

PCT/JP2023/019460

April 25, 2024

May 25, 2023

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DIC CORP (JP)

C08G18/30; C08G18/08; C08G18/10; C08G18/48; D06N3/14

ONO Takayuki (JP)

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