Abstract: Novel epoxy-urethane resins are produced by the reaction of an epoxy-alkanolamine adduct and a urethane prepolymer. The epoxy-alkanolamine adduct is prepared by reacting a liquid resin with an N-substituted ethanolamine such as isopropyl ethanolamine and tertiary butyl ethanolamine. The epoxy-urethane resin can be cured using ordinary epoxy curing agents for application as waterproofing membranes, joint sealants and adhesives. Two-part resin systems comprising epoxy-urethane resins of the invention as the first part and an appropriate curing agent as the second part avoid disadvantages characteristic of resin mixtures that rely on urethane cure chemistry.

Abstract: A novel thermoplastic, elastomeric material is obtained by curing under shear conditions (e.g. in a high shear internal mixer) a blend of vulcanizable rubber (e.g. SBR, EPDM) and a bituminous material (e.g., asphalt) in the presence of a rubber vulcanizing agent (e.g. sulfur or peroxide). The product has a unique combination of elastomeric and thermoplastic properties. It can be processed by conventional thermoplastic methods at elevated temperatures (e.g. extrusion, calendering, vacuum forming) and at normal temperatures possesses good elastomeric properties without the need for subsequent vulcanization. If desired, the material can be re-processed.