Patent ID: 9249298
Filing Date: 2016-02-02
CPC Classification: B01D,C08G,C08L

Claim Text:
1. A polyurethane resin composition which comprises a main agent (I) which comprises a urethane prepolymer (A) with an isocyanate group terminal and a hardener (II) which comprises a urethane prepolymer (B) with a hydroxyl group terminal, wherein the urethane prepolymer (B) with the hydroxyl group terminal is a product of reaction between a polyol ingredient (a) and a polyisocyanate (b), and wherein the polyol ingredient (a) comprises a castor oil-based polyol (a1), present in an amount of between 50% and 74.6% by mass of the polyol ingredient (a), and a polyether polyol having 4 to 8 hydroxyl groups (a2), present in an amount of between 25.4% and 40% by mass of the polyol ingredient (a).