Patents by Inventor Mark Whiter

Mark Whiter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • SEMI-PREG MATERIAL WITH A PROPERTY-ENHANCING SURFACE FILM FOR IMPROVED PROPERTIES
    Publication number: 20110171034
    Abstract: Semi-preg material is disclosed adapted for use in composite material comprising a) a first resin layer, b) covered on both side by layers of fibrous reinforcements whereby c) one of the two fabric layers is coated with a second resin layer and d) wherein said second resin layer has a tack level of not more than 100 N. Such semi-preg material has improved handling properties and contributes to the superior mechanical properties of the composite material formed therewith.
    Type: Application
    Filed: September 24, 2009
    Publication date: July 14, 2011
    Applicant: Hexcel Composites, Ltd
    Inventor: Mark Whiter
  • COMPOSITE MATERIAL ASSEMBLY
    Publication number: 20090252916
    Abstract: A composite material assembly (1) comprises a) a surface enhancing layer (5) comprising at least one layer of fibres, having a length to width aspect ratio of more than 5:1 and b) a structural layer (7) comprising at least one reinforcing fibre and at least one polymeric matrix.
    Type: Application
    Filed: July 11, 2007
    Publication date: October 8, 2009
    Applicant: Hexcel Composites Limited
    Inventors: Armin Heidrich, Mark Whiter, David Tilbrook
  • Accelerated curing of epoxy gelcoats
    Patent number: 6773754
    Abstract: Aqueous solutions of inorganic nitrate salts are used to accelerate the gelling of epoxy gelcoat resins without adversely affecting the glass transition temperature of the finally cured gelcoat. The aqueous accelerants may be used to accelerate gelling of gelcoats that are formed during initial fabrication of composite parts. The aqueous acclerants are also useful for shortening the gel time of gelcoats that are intended for use in repairing damaged structures.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: August 10, 2004
    Assignee: Hexcel Composites, Ltd.
    Inventor: Mark Whiter
  • Accelerated curing of epoxy gelcoats
    Publication number: 20030130481
    Abstract: Aqueous solutions of inorganic nitrate salts are used to accelerate the gelling of epoxy gelcoat resins without adversely affecting the glass transition temperature of the finally cured gelcoat. The aqueous accelerants may be used to accelerate gelling of gelcoats that are formed during initial fabrication of composite parts. The aqueous acclerants are also useful for shortening the gel time of gelcoats that are intended for use in repairing damaged structures.
    Type: Application
    Filed: December 10, 2002
    Publication date: July 10, 2003
    Applicant: Hexcel Composites, Ltd.
    Inventor: Mark Whiter
  • Curing agents
    Patent number: 6107437
    Abstract: Curing agents for epoxy resins are provided in which an imidazole is substituted on the nitrogen atom by a long chain group. This provides greater latexing (stability) at ambient temperatures without adversely affecting curing properties at temperatures of 50.degree. C. upwards. Those components in which the chain is substituted by a hydroxy group on the 2 position are particularly preferred and are novel compounds.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: August 22, 2000
    Assignee: Hexcel Corporatioin
    Inventors: John Leslie Cawse, Mark Whiter