[특허]Flame retardant EMI shielding gasket

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-005/14 B32B-005/18 H05K-009/00
출원번호	US-0142803 (2002-05-09)
발명자 / 주소	Bunyan, Michael H. Flanders, William I.
출원인 / 주소	Parker-Hannifin Corp.
대리인 / 주소	Molnar, Jr., John A.
인용정보	피인용 횟수 : 4 인용 특허 : 32

초록 ▼

A flame retardant, electromagnetic interference (EMI) shielding gasket construction. The construction includes a resilient core member formed of a foamed elastomeric material, an electrically-conductive fabric member surrounding the outer surface of the core member, and a flame retardant layer coati

A flame retardant, electromagnetic interference (EMI) shielding gasket construction. The construction includes a resilient core member formed of a foamed elastomeric material, an electrically-conductive fabric member surrounding the outer surface of the core member, and a flame retardant layer coating at least a portion of the interior surface of the fabric member. The flame retardant layer is effective to afford the gasket construction with a flame class rating of V-0 under Underwriter's Laboratories (UL) Standard No. 94.

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A flame retardant, electromagnetic interference (EMI) shielding gasket construction. The construction includes a resilient core member formed of a foamed elastomeric material, an electrically-conductive fabric member surrounding the outer surface of the core member, and a flame retardant layer coati

A flame retardant, electromagnetic interference (EMI) shielding gasket construction. The construction includes a resilient core member formed of a foamed elastomeric material, an electrically-conductive fabric member surrounding the outer surface of the core member, and a flame retardant layer coating at least a portion of the interior surface of the fabric member. The flame retardant layer is effective to afford the gasket construction with a flame class rating of V-0 under Underwriter's Laboratories (UL) Standard No. 94. ed membrane according to claim 1, wherein said membrane retains at least 80% of its initial gas pressure after two years. 13. A bladder, comprising a membrane according to claim 1 having been sealed to define an interior compartment, said interior compartment being gas-filled. 14. A permanently sealed and permanently inflated membrane, comprising a first layer including a thermoplastic polyurethane; a second layer including a copolymer of ethylene and vinyl alcohol; and a third layer including a thermoplastic polyurethane; wherein reactive contact consisting essentially of hydrogen bonding occurs along substantially the entire surface area of contact between the copolymer of ethylene and vinyl alcohol and the thermoplastic polyurethane layers; and further wherein said membrane controls the rate of outward diffusion of an internal gas of said membrane and allows diffusion pumping of an external mobile gas into the membrane. 15. The membrane according to claim 14 wherein at least one of said layers including thermoplastic polyurethane is selected from the group consisting of polyester, polyether, polycaprolactone, polyoxypropylene and polycarbonate macroglycol based materials and mixtures thereof. 16. The membrane according to claim 14 wherein said copolymer of ethylene and vinyl alcohol is selected from the group consisting of copolymers including an ethylene content of between about 27 mol. % to about 48 mol. %. 17. The membrane according to claim 15 wherein one of said layers including thermoplastic polyurethane has an average thickness of between about 0.001 inches to about 0.100 inches. 18. The membrane according to claim 15 wherein said second layer including a copolymer of ethylene and vinyl alcohol has an average thickness of between about 0.0010 inches to about 0.010 inches. 19. The membrane according to claim 15 wherein said first layer including a thermoplastic polyurethane has an average thickness of between about 0.005 inches to about 0.050 inches, said second intermediate layer including a copolymer of ethylene and vinyl alcohol has an average Thickness of between 0.0025 inches to about 0.0050 inches and said third layer including a thermoplastic urethane has an average thickness of between about 0.005 inches to about 0.050 inches. 20. A method for producing a permanently sealed and permanently inflated bladder, comprising the steps of: simultaneously extruding a first layer including thermoplastic polyurethane and a second layer including a copolymer of ethylene and vinyl alcohol together to form a membrane wherein reactive contact consisting essentially of hydrogen bonding occurs along substantially the entire surface area of contact between the first and second layers forming the membrane into a bladder having an interior compartment and a port, filling the interior compartment through the port with a gas, and sealing the port; and further wherein said bladder controls the rate of outward diffusion of an internal gas of said membrane and allows diffusion pumping of an external mobile gas into the membrane. 21. The method according to claim 22 wherein said copolymer of ethylene and vinyl alcohol is selected from the group consisting of copolymers including an ethylene content of between about 27 mol. % to about 48 mol. %. 22. The method according to claim 20 wherein the extrusion is carried out at a temperature of between about 300° F. to about 450° F. 23. A method for producing a permanently sealed and permanently inflated bladder, comprising the steps of: simultaneously extruding a first layer including thermoplastic polyurethane, a second intermediate layer including a copolymer of ethylene and vinyl alcohol, and a third layer including a thermoplastic polyurethane wherein reactive contact consisting essentially of hydrogen bonding occurs along substantially the entire surface area of contact between at least one layer including the thermoplastic polyurethane and said layer including the

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이 특허에 인용된 특허 (32) 인용/피인용 타임라인 분석

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Jobe Anthony (Union City GA) Perkins Cheryl A. (Roswell GA) Powers Michael D. (Woodstock GA), Conductive fabric and method of producing same.
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Fraser ; Jr. Ladson L. (High Point NC) Vockel Richard L. (Oak Ridge NC), Conductive fabric conductive resin bodies and processes for making same.
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Kaplo Joseph J. (Pittsford NY) Hoge William (Palmyra NY) Lund Craig (Lima NY), Conductive gasket with flame and abrasion resistant conductive coating.
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Keyser Paul (Newbury MA) Jones Peter (Londonderry NH) Hubbard John D. (Billerica MA), Conductive masking laminate.
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Buonanno Samuel S. (Fairport NY), EMI shielding seal with partial conductive sheath.
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Keyser Paul F. (W. Newbury MA) Johansen Eivind L. (Weare NH), EMI/REI shielding gasket.
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Powers ; Jr. Donald H. (Needham MA), Electrically conductive flame retardant materials and methods of manufacture.
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Hoge ; Jr. William C. (Palmyra NY) Ferris Merle C. (Rochester NY), Electromagentic shielding with discontinuous adhesive.
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Kawanishi, Toshio; Hareyama, Satoshi, Fabric articles having a flame-resistant coating on at least one surface thereof.
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Dimanshteyn Felix (West Hartford CT), Fire protected foamed polymeric materials.
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Tomita Mikio (Kyoto JPX), Flame retardant coating composition and fabric coated therewith.
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Slosberg David K. (Atlanta GA) Nowell Gilbert S. (Marrietta GA), Flame-resistant vinyl foam gasket and method of preparation.
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Strenger Mark R. (Woodbury MN) Secor Robert B. (Stillwater MN) Lenz Bernhard (Kleinenbroich DEX), Knife coating method using ascension of the fluid by its tension.
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Melancon Kurt C. (Hugo MN) Kessel Carl R. (St. Paul MN) Leonard William K. (Troy Township ; St. Croix County WI), Method and apparatus for applying thin fluid coatings.
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Cloyd Willard C. (Fountain Hills AZ) Nelson Robert M. (Phoenix AZ), Method for coating fabric surface with electrically conductive film.
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Holtrop James S. (South Windsor CT) Maurer Richard P. (Wilbraham MA), Method of making a thermoformable laminate structure.
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Furuta Tsunekatsu (Ohtsu) Kamemaru Ken\ichi (Uji) Nakagawa Kiyoshi (Uji JPX), Moisture permeable and waterproof coated fabric and method for manufacturing same.
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Buonanno Samuel S. (Monroe NY), Multi-function gasket.
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Covey James F. (Snohomish WA), Partially coated fabric sheet.
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George Stephen (Clinton NJ) George Thomas H. (Clinton NJ), Refractory coated and dielectric coated flame resistant insulating fabric composition.
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Gladfelter Harry F. (Phoenixville PA), Shielding fabric.
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[미국특허] Flame retardant EMI shielding gasket 원문보기

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