Abstract:
1. A SOLVENT-FREE HARDENED COMPOSITION CONSISTING ESSENTIALLY OF: (1) 10-50 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF BITUMEN HAVING A PENETRABILITY INDEX OF FROM 20 TO 300; (2) 29 TO 59 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF A POLYEPOXYETHER HAVING REACTIVE EPOXY END GROUPS CONSISTING OF THE CONDENSATION PRODUCT OF (N+1) MOLES OF A DIEPOXY COMPOUND WITH N MOLES OF A POLYOL, SAID DIEPOXY COMPOUND BEING A CONDENSATION PRODUCT OF A DIPHENOL WITH AN EPIHALOHYDRIN AND HAVING AN EPOXIDIC OXYGEN CONTENT OF FROM 50 TO 100 PERCENT OF THE THEORETICAL VALUE; AND (3) 16 TO 32 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF A HARDENER CAPABLE OF HARDENING THE COMPOSITION SELECTED FROM THE GROUP CONSISTING OF AMINES, AMINOAMIDES, AN AMIDOAMINE OF POLYMERIZED LINOLEIC ACID AND A HYDROLYSABLE IMINE.
Abstract:
Aliphatic triepoxides derived from the condensation of an aliphatic triol with an epihalohydrin function as highly reactive diluents in compositions comprised of tars, diepoxides, and curing agents, and which triepoxide diluents permit the use of a major proportion of tar in the compositions without adversely affecting the physical properties of the resultant compositions.
Abstract:
COMPOSITE MATERIALS HAVING IMPROVED RESILIENCE COMPRISING A CONTINUOUS PHASE OR MATRIX AND REINFORCING MEANS CONTIGUOUS TO AND FIRMLY BONDED TO THE MATRIX, SAID REINFORCING MEANS COMPRISING CARBON FIBERS WHICH HAVE BEEN SIZED WITH ELASTOMER-TYPE EPOXY RESINS.