Patents Assigned to Hexcel Composites
  • Amino benzoates or benzamides as curing agents for epoxy resins
    Patent number: 10040897
    Abstract: Amino benzoates have been found to be useful curing agents for epoxy resins particularly para amino benzoates containing at least two primary amine groups and at least two carboxyl moieties, the amino benzoates are particularly useful as curatives in prepregs.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: August 7, 2018
    Assignees: Hexcel Composites, Hexcel Corporation
    Inventors: Chris Mason, Martin Simmons, Yen-Seine Wang
  • Composite materials
    Patent number: 8906481
    Abstract: A prepreg assembly comprising resin and fibers and comprising an uppermost curable resin surface layer such that when the assembly is cured, the uppermost surface layer has a sandability of at least 0.30 mg/cycle over 200 cycles, as measured according to ASTM D4060 using a Taber 5151 Abrasion Tester fitted with H18 wheels and a 1.0 kg weight is provided.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: December 9, 2014
    Assignee: Hexcel Composites
    Inventor: Mark Whiter