RICHARD G MURPHY
Engineering in Haverhill, MA
License number
Massachusetts 37485
Issued Date
Aug 30, 1993
Expiration Date
Jun 30, 2018
Type
Civil Engineer
Address
Address
Haverhill, MA 01833
Professional information
Stiff Fray Resistant Mat Material
US Patent:
4673615, Jun 16, 1987
Filed:
Jan 8, 1986
Appl. No.:
6/817128
Inventors:
Richard Murphy - Haverhill MA
John Capron - Haverhill MA
John Capron - Haverhill MA
Assignee:
Foss Manufacturing Co., Inc. - Haverhill MA
International Classification:
B32B 2708, B32B 2712, B32B 3106, B32B 3120
US Classification:
428286
Abstract:
A stiff abrasion resistant laminated material and process of manufacture thereof. The mat material comprises an extruded sheet of a stiff water resistant thermoplastic polymer, a first layer of a needled non-woven thermoplastic fabric laminated during extrusion to one side of the core sheet, a second layer of a needled non-woven thermoplastic fabric laminated during extrusion to the other side of the sheet wherein the fabric layers are bonded to the sheet solely through interlocking of fiber portions of the fabric materials with the matrix of the sheet.