Patents Assigned to Hexcal Composites Limited
  • Curing agents and process for their manufacture
    Patent number: 8461275
    Abstract: Compounds having the formula (I) wherein L is a linking group, at least one of R1 to R10 comprises the group C?N, at least one of R1 to R5 and at least one of R6 to R10 comprise the group NH2 for use as curing agents in an epoxy resin, together with a process for their synthesis and composites comprising the curing agents.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: June 11, 2013
    Assignee: Hexcal Composites Limited
    Inventor: John Cawse