Patent ID: 6465531
Filing Date: 2002-10-15
Classification: C08G,C08J,Y02W

Abstract:
A method of recycling a thermoset resin selected from the group consisting of epoxy resins, phenol resins, melamine resins, silicone resins, urea resins, xylene resins, furan resins, melaminephenol resins and polybutadiene resins, comprising:contacting at least a portion of the thermoset resin with decomposer having at least one functional group capable of reacting at a crosslink site on the thermoset resin, under conditions sufficient to break said crosslink site, to give a fluid thermoset preresin, wherein a plurality of chain ends of said preresin have functional groups thereon; and re-hardening said fluid thermoset preresin by reacting said plurality of chain ends with a rehardener having two or more groups reactive with said chain end functional groups.