Patent ID: 9290683
Filing Date: 2016-03-22
CPC Classification: C08G,C08L,C09J

Claim Text:
1. A curable composition having a first part and a second part, the curable composition comprising: a) an epoxy resin, wherein the epoxy resin is in the first part of the curable composition; b) a curing agent having at least two groups of formula —NR c) a toughening agent, wherein the toughening agent is in the first part, in the second part, or in both the first part and the second part of the curable composition and wherein the toughening agent is a core-shell polymer, a butadiene-nitrile rubber, acrylic polymer or copolymer, an adduct of an amino-terminated material and an epoxy resin, or an adduct of a carboxy-terminated material and an epoxy resin; and d) a reactive liquid modifier that is in the first part of the curable composition, the reactive liquid modifier comprising an acetoacetate ester of a polyol that is a vegetable oil, that is prepared from a vegetable oil, or that is a mixture thereof, wherein the polyol comprises a triglyceride having at least two hydroxyl groups and wherein the acetoacetate ester has at least two acetoacetoxy groups.