Patent ID: 9371413
Filing Date: 2016-06-21
CPC Classification: C07C,C07D,C08G,C12P,C12Y

Claim Text:
1. A polyurethane resin produced by allowing a pentamethylene diisocyanate and/or a polyisocyanate composition to react with an active hydrogen compound, wherein the pentamethylene diisocyanate is obtained by phosgenating pentamethylenediamine or its salt obtained by a biochemical method, and contains 5 to 200 ppm of a compound represented by the general formula (1) below and a compound represented by the general formula (2) below in total; and the polyisocyanate composition is obtained by modifying the pentamethylene diisocyanate, and contains at least one functional group of (a) to (e) below: (a) an isocyanurate group, (b) an allophanate group, (c) a biuret group, (d) a urethane group, and (e) a urea group,