Abstract: A light-weight, highly-conductive material useful for repairing a lightning protection system in an aircraft. The material includes a nonwoven carbon fiber veil and a metal coating covering the veil. The veil includes a plurality of carbon fibers looped randomly throughout the veil and a binder material that binds the plurality of fibers together. The metal coating covers a portion of a surface of the plurality of bound fibers of the veil, and preferably the entire surface of both the plurality of bound fibers and the binder material, forming a highly-conductive network that follows the shape of the plurality of fibers in the veil. The areal weight is in a range from at least 5 grams per square meter (gsm), up to 12 gsm, and the sheet resistance is in a range from at least 0.5 ohms per square (?/?), up to 2?/?.

Abstract: The disclosure relates to a curable composition comprising: a polymerizable epoxy-acrylate resin composition having a complex viscosity at 25° C. and 1 Hz frequency of at least about 4500 Pa-s and a probe tack peak force of at least about 300 kPa; and abrasive particles partially or fully embedded in the polymerizable epoxy-acrylate resin composition. The disclosure also relates to cured compositions formed from such curable compositions, wherein the abrasive particles are partially or fully embedded in the cured composition. In addition, the disclosure relates to abrasive articles made from such cured compositions as well as methods for making abrasive articles.

Abstract: A heated composite tool, useful for forming, debulking, and/or curing prepreg materials, including a composite build structure having a shape of a composite part that is to be produced, configured to receive and support prepreg materials during lay-up, and including a heating structure physically coupled to the composite build structure, and comprising at least one heating element, including a carbon nanotube structured layer defining a current path having first and second ends and first and second electrical terminals electrically coupled to the first and second ends and a first isolation ply disposed between the composite build structure and the at least one heating element, the first isolation ply forming an electrical insulating gap between the at least one heating element and the composite build structure, wherein the carbon nanotube structured layer is responsive to an electromotive force applied across the first and second electrical terminals to heat the tool.

Abstract: A light-weight, highly-conductive material useful for repairing a lightning protection system in an aircraft. The material includes a nonwoven carbon fiber veil and a metal coating covering the veil. The veil includes a plurality of carbon fibers looped randomly throughout the veil and a binder material that binds the plurality of fibers together. The metal coating covers a portion of a surface of the plurality of bound fibers of the veil, and preferably the entire surface of both the plurality of bound fibers and the binder material, forming a highly-conductive network that follows the shape of the plurality of fibers in the veil. The areal weight is in a range from at least 5 grams per square meter (gsm), up to 12 gsm, and the sheet resistance is in a range from at least 0.5 ohms per square (?/?), up to 2?/?.

Abstract: Disclosed embodiments include hollow composite utility pole, cross arm, and brace structures and methods of manufacture of the same using fire retardant materials. Poles, cross arm, and brace structures may be manufactured using a fire resistant resin impregnated, or resin wetted, filament roving that is wound onto a mandrel, pultruded or otherwise formed into a structural part. Various pole structures and manufacturing methods are described, including chemically bonded sleeve joint structures for poles of varying size.

Abstract: A heating blanket (18), useful for debulking and/or curing composite materials, comprising at least one heating element comprising a carbon nanotube (CNT) structured layer defining an electrically conductive pathway having a first end and a second end and a first electrical terminal (19) electrically coupled to the first end and a second electrical terminal (21) electrically coupled to the second end, and an elastomeric outer covering, encasing the at least one heating element, wherein the at least one heating element is responsive to an electromotive force applied across the first and the second electrical terminals to produce heat.

Abstract: Disclosed embodiments include hollow composite utility pole, cross arm, and brace structures and methods of manufacture of the same using fire retardant materials. Poles, cross arm, and brace structures may be manufactured using a fire resistant resin impregnated, or resin wetted, filament roving that is wound onto a mandrel, pultruded or otherwise formed into a structural part. Various pole structures and manufacturing methods are described, including chemically bonded sleeve joint structures for poles of varying size.

Abstract: Disclosed embodiments include hollow composite utility pole structures and methods of manufacture of the same using ring winding process. Poles may be manufactured using a resin impregnated, or resin wetted filament roving that is wound onto a mandrel from several delivery points arranged circumferentially around mandrel axis. Various pole structures and manufacturing methods are described, including chemically bonded sleeve joint structures for poles of varying size.