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Harpell Gary A, Kavesh Sheldon, Palley Igor, Prevorsek Dusan C: Consolidation of polyethylene fibrous networks.. Allied, August 29, 1984: EP0116845-A2 (25 worldwide citation)

High performance (high tenacity and modulus) polyethylene fibers are subjected to pressure at elevated temperatures in the absence of a matrix to form articles such as non-woven fabrics and film-like structures, which may be translucent or even transparent. Good fiber adhesion and even fiber deforma ...


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Harpell Gary A, Prevorsek Dusan C, Cunningham David C: Fabric based articles having improved penetration resistance.. Allied Signal, September 8, 1993: EP0558626-A1 (1 worldwide citation)

An improved article of the type comprising a plurality of flexible fibrous layers (12a-12j) at least two of which are secured together by stitches (14) formed from relatively high tenacity and high tensile modulus yarns.


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Harpell Gary A, Prevorsek Dusan C: Three dimensional fiber structures having improved penetration resistance.. Allied Signal, August 11, 1993: EP0554312-A1 (1 worldwide citation)

Penetration resistant article of the type comprising one or more flexible fibrous layers wherein the fibers in each layer are arranged parallel or substantially parallel to one another along a common fiber direction with fibers in adjacent layers aligned at an angle with respect to the longitudinal ...


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Harpell Gary A, Prevorsek Dusan C: Flexible composites having flexing rigid panels and articles fabricated from same. Allied Signal, ROONEY Gerard P, November 26, 1992: WO/1992/020519 (1 worldwide citation)

A flexible article of manufacture especially suitable for use as a ballistic resistant body armor which comprises at least one substrate, said layers being a fibrous layer, and at least one layer having a plurality of bodies (16) sewn to at least one surface of said substrate layer, said bodies havi ...


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Harpell Gary A: Articles en tissu de protection balistique, Ballistic resistant fabric articles. Alliedsignal, Alliedsignal, GOWLING LAFLEUR HENDERSON, May 29, 1992: CA2095815

A flexible article of manufacture especially suitable for use as a bal-listic resistant body armor which comprises a flexible substrate layer hav-ing a plurality of planar non-metallic bodies mechanically affixed to asurface thereof.


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Prevorsek Dusan C, Kavesh Sheldon, Harpell Gary A, Palley Igor: Composite complexe a resistance accrue aux impacts, Complex composite article having improved impact resistance. Allied Corporation, GOWLING LAFLEUR HENDERSON, August 16, 1988: CA1240604

ABSTRACT The present invention provides an improved, complexcomposite article of manufacture which comprises a net-work of high strength fibers having a tensile modulus ofat least about 160 grams/denier and a tenacity of atleast about 7 g/denier. An elastomeric material sub-stantially coats each of ...


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Harpell Gary A, Kamath Vasanth R: Polymerisation par des radicaux libres au moyen de systemes inducteurs mixtes, intervenant a deux etapes thermiques, precises de polymerisation, Free-radical polymerizations using mixed initiator systems at two thermally distinct polymerization stages. Atochem North America, February 19, 1980: CA1072245

ABSTRACT A process for the free-radical polymerization ofvinyl aromatic monomers in at least two thermally distinctpolymerization stages each between the temperatures ofabout 70�C and 150�C in the presence of at least two free-radical initiators, one of which initiators is particularlyeffective at t ...


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Kavesh Sheldon, Harpell Gary A, Palley Igor, Prevorsek Dusan C: Fibre polyolefinique a chaine allongee et munie dun revetement, Coated extended chain polyolefin fiber. Allied Corporation, GOWLING LAFLEUR HENDERSON, January 7, 1986: CA1198862

ABSTRACT COATED EXTENDED CHAIN POLYOLEFIN FIBER High tenacity, high modulus ultrahighmolecular weight fibers of polyethylene or poly-propylene are coated with polyethylene, polypropyleneor an ethylene and/or propylene copolymer. Thecoating improves certain properties of the monofila-ment or multifil ...