Curable compositions having a reduced enthalpy output

A method of modifying a one part, curable composition from a self reactive shipping classification to a non self reactive shipping classification, the composition selected from the group consisting of adhesives, sealants and coatings, comprising:

• preselecting a curable component and a latent curing agent component for curing the curable component, wherein a mixture of the curable component and the curing agent component has a cure onset temperature, an end temperature of reaction, a reaction exotherm of at least 300 J/g and a self reactive shipping classification;
• providing the curable component;
• providing the latent curing agent component;
• providing a predetermined amount of an inert, heat absorbing component having a phase change in the range of temperatures between the cure onset temperature and the end temperature of the reaction, the amount being predetermined to provide a mixture of the curable component, the curing agent component and the heat absorbing component with a reaction exotherm of less than 300 J/g;
• and
• substantially homogeneously mixing the curable component, the curing agent and the predetermined amount of heat absorbing component to form the one part, curable composition having a reaction exotherm of less than 300 J/g and not requiring a self reactive shipping classification.

A method of shipping a one part, curable composition selected from the group consisting of adhesives, sealants and coatings, comprising:

• preselecting a curable component and a latent curing agent component for curing the curable component, wherein a mixture of the curable component and the curing agent component has a cure onset temperature, an end temperature of reaction, a reaction exotherm of at least 300 J/g and a self reactive shipping classification;
• providing the curable component;
• providing the latent curing agent component;
• providing a predetermined amount of an inert, heat absorbing component having a phase change in the range of temperatures between the cure onset temperature and the end temperature of the reaction, the amount being predetermined to provide a mixture of the curable component, the curing agent component and the heat absorbing component with a reaction exotherm of less than 300 J/g;
• substantially homogeneously mixing the curable component, the curing agent and the predetermined amount of the heat absorbing component to form the one part, curable composition;
• and
• packing the one part, curable composition in a shipping container without a self reactive classification.