[특허]Coextrusion of multilayer articles using protective boundary layers and apparatus therefor

[미국특허] Coextrusion of multilayer articles using protective boundary layers and apparatus therefor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-047/06
출원번호	US-0955788 (1992-10-02)
발명자 / 주소	Ramanathan Ravi (Midland MI) Schrenk Walter J. (Midland MI) Wheatley John A. (Midland MI)
출원인 / 주소	The Dow Chemical Company (Midland MI 02)
인용정보	피인용 횟수 : 255 인용 특허 : 14

초록 ▼

A process and apparatus for the coextrusion of a multilayer polymeric body is provided which incorporates protective boundary layers into the body, protecting the layers from instability and breakup during layer formation and multiplication. The process includes the steps of providing at least first and second streams of heat plastified extrudable thermoplastic material which are combined to form a composite stream having the first substreams and second substreams interdigitated. A third stream of heat plastified thermoplastic material is supplied to the exterior surfaces of the composite stream to form protective boundary layers adjacent the walls of the coextrusion apparatus through which the heat plastified polymer streams pass. Layer instability and breakup are avoided using process conditions which would otherwise adversely affect the optical and/or mechanical properties of the articles which are formed.

대표청구항 ▼

A process for the coextrusion of a multilayer polymeric reflective body comprising the steps of: providing at least a first stream and a second stream of heat plastified extrudable thermoplastic polymeric material, dividing each of the stream into a plurality of first substreams and a plurality of second substreams, respectively, combining the substreams to form a composite stream having said first substreams and second substreams interdigitated, providing a third stream of heat plastified thermoplastic polymeric material to the exterior surfaces of said composite stream to form protective boundary layers to prevent breakup of the layers of said first and second thermoplastic polymeric materials during layer manipulation and multiplication, said third stream of thermoplastic polymeric material having a viscosity which is equal to or less than that of either said first or second streams of thermoplastic polymeric material and is supplied at a volumetric flow rate which is from about 1-12.5% of the total volume of said composite stream, forming a manipulated stream by mechanically manipulating said composite stream having said protective boundary layers to provide an increased number of layers, and shaping the manipulated stream into a multilayer polymeric reflective body having a sufficient number of alternating layers of said first and second thermoplastic polymeric materials such that at least 30% of light incident on said body is reflected and wherein said first and second thermoplastic polymeric materials differ from each other in refractive index by at least about 0.03 to produce a reflective polymeric body, said layers being generally parallel to one another. An apparatus for preventing layer breakup during coextrusion of a multilayer polymeric body by the generation of interfacial surfaces within a first composite stream which comprises discrete overlapping layers of first and second polymeric materials, of which at least a pair of such discrete overlapping layers define a generally planar layer interface therebetween which lies generally in an x-z plane of an x-y-z coordinate system, where the z-axis is taken as extending in the general direction of flow of said first composite stream, the x-axis extends transversely of said first composite stream and defines a transverse dimension of the layer interface, and the y-axis extends generally perpendicularly away from the planar layer interface in the thickness direction of said pair of discrete overlapping layers, said apparatus comprising: means for dividing said first composite stream into a plurality of branch streams along the x-axis, such that said pair of discrete overlapping layers and said generally planar layer interface defined therebetween are distributed among two or more of said branch streams; means upstream of said means for dividing said first composite stream for providing a third stream of heat plastified thermoplastic material to the exterior surfaces of said composite stream to form protective boundary layers; means communicating with said means for dividing said first composite stream for manipulating and repositioning said branch streams along both the x-axis and the y-axis; and means for recombining said repositioned branch streams to form a second composite stream having a greater number of discrete overlapping layers of said polymeric material than said first composite stream.

이 특허에 인용된 특허 (14) 인용/피인용 타임라인 분석

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Cloeren Peter (P.O. Box 583 Orange TX 77360), Variable thickness extrusion die.
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Matson,Kenneth E.; Bontrager,Rick A., Multi-layer food product system and process.
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Wheatley John A.,GBX ; Nevitt Timothy J. ; Merrill William W. ; Weber Michael F., Multicomponent optical body.
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Wheatley, John A.; Nevitt, Timothy J.; Merrill, William W.; Weber, Michael F., Multicomponent optical body.
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Floyd, Robert M.; Devens, Jr., Douglas A., Multilayer coextrusion die and method.
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Carlson Lockwood W. ; Kotz Arthur L. ; Nevitt Timothy J. ; Ouderkirk Andrew J. ; Stover Carl A. ; Weber Michael F. ; Allen Richard C. ; Majumdar Biswaroop, Multilayer film having a continuous and disperse phase.
상세보기
Carlson Lockwood W. ; Kotz Arthur L. ; Nevitt Timothy J. ; Ouderkirk Andrew J. ; Stover Carl A. ; Weber Michael F. ; Allen Richard C. ; Majumdar Biswaroop, Multilayer film having a continuous and disperse phase.
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John A. Wheatley ; Andrew J. Ouderkirk, Multilayer infrared reflecting optical body.
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Wheatley John A. ; Ouderkirk Andrew J., Multilayer infrared reflecting optical body.
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Condo, Peter D.; Hebrink, Timothy J.; Wheatley, John A.; Ouderkirk, Andrew J.; Ruff, Andrew T.; Liu, Yaoqi J.; Andrus, Jr., Milton H., Multilayer optical bodies.
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Condo, Peter D.; Hebrink, Timothy J.; Wheatley, John A.; Ouderkirk, Andrew J.; Ruff, Andrew T.; Liu, Yaoqi J.; Andrus, Jr., Milton H., Multilayer optical bodies.
상세보기
Condo,Peter D.; Hebrink,Timothy J.; Wheatley,John A.; Ouderkirk,Andrew J.; Ruff,Andrew T.; Liu,Yaoqi J.; Andrus, Jr.,Milton H., Multilayer optical bodies.
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Peter D. Condo ; Timothy J. Hebrink ; John A. Wheatley ; Andrew J. Ouderkirk ; Andrew T. Ruff ; Yaoqi J. Liu ; Milton H. Andrus, Jr., Multilayer optical bodies.
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Tait,Bruce E.; Dobrzynski,Steven J.; Mortenson,David K.; Wheatley,John A., Multilayer optical film with melt zone to control delamination.
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Weber, Michael F.; Nevitt, Timothy J.; Ouderkirk, Andrew J.; Wheatley, John A.; Jonza, James M.; Liu, Yao Qi; Ruff, Andrew T.; Boettcher, Jeffery A., Multilayer optical films having one or more reflection bands.
상세보기
Carlson Lockwood W. ; Kotz Arthur L. ; Nevitt Timothy J. ; Ouderkirk Andrew J. ; Stover Carl A. ; Weber Michael F. ; Allen Richard C. ; Majumdar Biswaroop, Multilayer polarizer having a continuous and disperse phase.
상세보기
Carlson Lockwood W. ; Kotz Arthur L. ; Nevitt Timothy J. ; Ouderkirk Andrew J. ; Stover Carl A. ; Weber Michael F. ; Allen Richard C. ; Majumdar Biswaroop, Multilayer polarizer having a continuous and disperse phase.
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Ouderkirk, Andrew J.; Bluem, Gregory L.; Brott, Robert L.; Fleming, Patrick R.; Frankel, Joan M.; Hart, Shandon D.; Kopecky, William J.; Tai, Huiwen; Vogel-Martin, Margaret M.; Zillig, Daniel J., Multilayer polarizing fibers and polarizers using same.
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Carter Brandt K. ; Lucking Raymond L. ; Klein James A. ; Israel Sheldon J., Multilayer polyester film.
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Klein James A. ; Carter Brandt K. ; Israel Sheldon J. ; Lucking Raymond L., Multilayer polyester film with a low coefficient of friction.
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Jonza, James M.; Lorimor, Lynn E.; Venkataramani, Shivshankar, Multilayer polymer film with additional coatings or layers.
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Laurence R. Gilbert ; James M. Jonza ; Andrew J. Ouderkirk ; Carl A. Stover ; Michael F. Weber ; William W. Merrill, Multilayer polymer film with additional coatings or layers.
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Laurence R. Gilbert ; James M. Jonza ; Andrew J. Ouderkirk ; Carl A. Stover ; Michael F. Weber ; William W. Merrill, Multilayer polymer film with additional coatings or layers.
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Liu Yaoqi Joe ; Nerad Bruce A. ; Gilbert Laurence R. ; Brott Robert L. ; Weber Michael F. ; Roscoe Kelly M. ; Wheatley John A.,GBX, Multilayer reflector with selective transmission.
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Weber,Michael F., Multilayer reflector with suppression of high order reflections.
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Dooley, Joseph; Robacki, Jeffrey M.; Barger, Mark A.; Wrisley, Robert E.; Crabtree, Sam L.; Pavlicek, Calvin L., Multilayer structures having annular profiles.
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Dooley, Joseph; Robacki, Jeffrey M.; Barger, Mark A.; Wrisley, Robert E.; Crabtree, Sam L.; Pavlicek, Calvin L., Multilayer structures having annular profiles and methods and apparatus of making the same.
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Ramli, Rafizi; McAllister, Larry Bikle; Timmons, Anton L.; Webster, Bradford E.; Wolf, John R.; Brown, Christopher L.; Wofford, George D., Multilayer, heat-shrinkable film comprising a plurality of microlayers.
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Ramli, Rafizi; McAllister, Larry Bikle; Timmons, Anton L.; Webster, Bradford E.; Wolf, John R.; Brown, Christopher; Wofford, George D., Multilayer, heat-shrinkable film comprising a plurality of microlayers.
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Ramli, Rafizi; McAllister, Larry Bikle; Timmons, Anton L.; Webster, Bradford E.; Wolf, John R.; Brown, Christopher; Wofford, George D., Multilayer, heat-shrinkable film comprising a plurality of microlayers.
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Kindler, David; Bukesov, Sergey A.; Hajjar, Roger A.; Jain, Amit; Kent, David L.; Malyak, Phillip H.; Massey, Brian; Ritter, John; Uebbing, John, Multilayered fluorescent screens for scanning beam display systems.
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Kindler, David; Bukesov, Sergey A.; Hajjar, Roger A.; Jain, Amit; Kent, David L.; Malyak, Phillip H.; Massey, Brian; Ritter, John; Uebbing, John, Multilayered fluorescent screens for scanning beam display systems.
상세보기
Kindler, David; Bukesov, Sergey A.; Hajjar, Roger A.; Jain, Amit; Kent, David L.; Malyak, Phillip H.; Massey, Brian; Ritter, John; Uebbing, John, Multilayered fluorescent screens for scanning beam display systems.
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Hebrink, Timothy J.; Liu, Yaoqui Joe; Merrill, William W.; Nerad, Bruce A., Multilayered polymer films with recyclable or recycled layers.
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Kindler, David; Hajjar, Roger A.; Kent, David L.; Ritter, John; Bukesov, Sergey A.; Malyak, Phillip H., Multilayered screens with light-emitting stripes for scanning beam display systems.
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Pokorny, Richard John; Radcliffe, Marc Dudley; Watson, Philip Edwin; Bowley, Christopher Chadwick; Ebihara, Ikuko, Optical bodies containing cholesteric liquid crystal material and methods of manufacture.
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Pokorny,Richard J.; Radcliffe,Marc D.; Watson,Philip E.; Bowley,Christopher C.; Ebihara,Ikuko, Optical bodies containing cholesteric liquid crystal material and methods of manufacture.
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Stover, Carl A.; Hebrink, Timothy J.; Denker, Martin E.; Jackson, Jeffery N.; Derks, Kristopher J.; Weber, Michael F.; Kobilansky, Anna A.; Strobel, Joan M.; Rosell, Barry S.; Purcell, John P.; Hamer, Kevin M.; Taylor, Robert D.; Black, William B.; Thompson, Richard J.; Bluem, Gregory L., Optical bodies including rough strippable boundary layers.
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Hebrink, Timothy J.; Stover, Carl A.; Denker, Martin E.; Jackson, Jeffery N.; Derks, Kristopher J.; Weber, Michael F.; Kobilansky, Anna A.; Strobel, Joan M.; Rosell, Barry S.; Purcell, John P.; Hamer, Kevin M.; Taylor, Robert D.; Black, William B.; Thompson, Richard J.; Bluem, Gregory L., Optical bodies including rough strippable boundary layers and asymmetric surface structures.
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Hebrink, Timothy J.; Stover, Carl A.; Denker, Martin E.; Jackson, Jeffery N.; Derks, Kristopher J.; Weber, Michael F.; Wetzels, Anna A.; Strobel, Joan M.; Rosell, Barry S.; Purcell, John P.; Hamer, Kevin M.; Taylor, Robert D.; Black, William B.; Thompson, Richard J.; Bluem, Gregory L., Optical bodies including rough strippable boundary layers and asymmetric surface structures.
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Stover, Carl A.; Hebrink, Timothy J.; Denker, Martin E.; Jackson, Jeffery N.; Derks, Kristopher J., Optical bodies including strippable boundary layers.
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Hebrink, Timothy J.; Condo, Peter D.; Merrill, William W., Optical bodies made with a birefringent polymer.
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Timothy J. Hebrink ; Peter D. Condo ; William W. Merrill, Optical bodies made with a birefringent polymer.
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Hebrink, Timothy J.; Johnson, Stephen A.; Derks, Kristopher J.; Hamer, Kevin M., Optical body having polyacrylate skin layer.
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Hebrink, Timothy J.; Johnson, Stephen A.; Derks, Kristopher J.; Hamer, Kevin M., Optical body having polyacrylate skin layer.
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Malyak, Phillip H.; Cappiello, Gregory G.; McCann, James T.; Uebbing, John; Watson, John M.; Hajjar, Roger A., Optical designs for scanning beam display systems using fluorescent screens.
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Kent, Susan L.; Tabar, Ronald J.; Allen, Richard C.; Cross, Elisa M.; Merrill, William Ward; Johnson, Stephen A.; Condo, Peter D.; Hebrink, Timothy J.; Gangi, Joseph A., Optical device containing polymeric material domains having different degrees of randomness.
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Merrill, William Ward; Kent, Susan L.; Tabar, Ronald J.; Allen, Richard C.; Cross, Elisa M.; Johnson, Stephen A.; Condo, Peter D.; Hebrink, Timothy J.; Gangi, Joseph A., Optical device having continuous and disperse phases.
상세보기
Merrill William W. ; Hebrink Timothy J. ; Williams Brian H. ; Kausch William L., Optical device with a dichroic polarizer and a multilayer optical film.
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Merrill William W. ; Hebrink Timothy J. ; Williams Brian H. ; Kausch William L., Optical device with a dichroic polarizer and a multilayer optical film.
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Allen, Richard C.; Cobb, Jr., Sanford; Cross, Elisa M.; Kent, Susan L.; Nevitt, Timothy J.; Ouderkirk, Andrew J.; Tabar, Ronald J.; Wortman, David L., Optical devices using reflecting polarizing materials.
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Allen, Richard C.; Cross, Elisa M.; Tabar, Ronald J., Optical devices using reflecting polarizing materials.
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Cobb, Jr., Sanford; Wortman, David L., Optical devices using reflecting polarizing materials.
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Ouderkirk,Andrew J.; Allen,Richard C.; Benson, Jr.,Olester; Breister,James C.; Chou,Yeun Jong; Fleming,Patrick R.; Kopecky,William J.; North,Diane; Stumo,Roger J.; Thunhorst,Kristin L.; Wilson,Bruce B.; Rude,Harold E., Optical elements containing a polymer fiber weave.
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Jonza James M. ; Weber Michael F. ; Ouderkirk Andrew J. ; Stover Carl A., Optical film.
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Jonza James M. ; Weber Michael F. ; Ouderkirk Andrew J. ; Stover Carl A., Optical film.
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Jonza James M. ; Weber Michael F. ; Ouderkirk Andrew J. ; Stover Carl A., Optical film.
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Jonza, James M.; Weber, Michael F.; Ouderkirk, Andrew J.; Stover, Carl A., Optical film.
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Jonza, James M.; Weber, Michael F.; Ouderkirk, Andrew J.; Stover, Carl A., Optical film.
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Jonza,James M.; Weber,Michael F.; Ouderkirk,Andrew J.; Stover,Carl A., Optical film.
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Jonza,James M.; Weber,Michael F.; Ouderkirk,Andrew J.; Stover,Carl A., Optical film.
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Merrill William W. ; Allen Richard C. ; Tabar Ronald J. ; Condo Peter D. ; Nevitt Timothy J., Optical film and process for manufacture thereof.
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Merrill William W. ; Allen Richard C. ; Tabar Ronald J. ; Condo Peter D. ; Nevitt Timothy J., Optical film and process for manufacture thereof.
상세보기
Allen, Richard C.; Kotz, Arthur L.; Carlson, Lockwood W.; Nevitt, Timothy J.; Ouderkirk, Andrew J.; Stover, Carl A.; Weber, Michael F.; Majumdar, Biswaroop, Optical film with co-continuous phases.
상세보기
Allen,Richard C.; Kotz,Arthur L.; Carlson,Lockwood W.; Nevitt,Timothy J.; Ouderkirk,Andrew J.; Stover,Carl A.; Weber,Michael F.; Majumdar,Biswaroop, Optical film with co-continuous phases.
상세보기
Allen,Richard C.; Kotz,Arthur L.; Carlson,Lockwood W.; Nevitt,Timothy J.; Ouderkirk,Andrew J.; Stover,Carl A.; Weber,Michael F.; Majumdar,Biswaroop, Optical film with co-continuous phases.
상세보기
Allen,Richard C.; Kotz,Arthur L.; Carlson,Lockwood W.; Nevitt,Timothy J.; Ouderkirk,Andrew J.; Stover,Carl A.; Weber,Michael F.; Majumdar,Biswaroop, Optical film with co-continuous phases.
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Campbell Alan B. ; McKee Andrew ; Cobb ; Jr. Sanford ; Kretman Wade D., Optical film with defect-reducing surface and method for making same.
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Allen Richard C. ; Carlson Lockwood W. ; Ouderkirk Andrew J. ; Weber Michael F. ; Kotz Arthur L. ; Nevitt Timothy J. ; Stover Carl A. ; Majumdar Biswaroop, Optical film with increased gain at non-normal angles of incidence.
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Wheatley John A.,GBX ; Weber Michael F. ; Ouderkirk Andrew J., Optical film with sharpened bandedge.
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Wheatley, John A.; Weber, Michael F.; Ouderkirk, Andrew J., Optical film with sharpened bandedge.
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Nevitt Timothy J. ; Stover Carl A. ; Kausch William L. ; Kallman Guy M. ; Horn Robert W. ; Hebrink Timothy J. ; Olson James A. ; O'Neill Mark B. ; Cross Elisa M. ; Kent Susan L., Optical films having at least one particle-containing layer.
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Chien,Bert T.; Strobel,Joan M.; Strobel,Mark A.; Jones,Clinton L.; Getschel,Joel A.; Bosl,Ellen R., Optical films incorporating cyclic olefin copolymers.
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, Optical films incorporating cyclic olefin copolymers.
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Toyooka,Kazuhiko, Optical laminated bodies, lighting equipment and area luminescence equipment.
상세보기
Weber Michael F. (Shoreview MN) Ouderkirk Andrew J. (Woodbury MN) Aastuen David J. W. (Farmington MN), Optical panel capable of switching between reflective and transmissive states.
상세보기
Ouderkirk Andrew J. ; Weber Michael F. ; Jonza James M. ; Stover Carl A., Optical polarizer.
상세보기
Bukesov, Sergey A.; Hajjar, Roger A., Organic compounds for adjusting phosphor chromaticity.
상세보기
Hajjar, Roger A.; Jain, Amit, Patterning a surface using pre-objective and post-objective raster scanning systems.
상세보기
Harada,Takashi; Mizuno,Kazuhiko; Wheatley,John A.; Nevitt,Timothy J.; Ouderkirk,Andrew J., Photopic detector system and filter therefor.
상세보기
Harada,Takashi; Mizuno,Kazuhiko; Wheatley,John A.; Nevitt,Timothy J.; Ouderkirk,Andrew J., Photopic detector system having a filter with an interference element, an absorptive element and an absorber or reflector.
상세보기
McLeod, David G.; D'Hooghe, Edward L.; Teli, Samar R., Plastic composite articles and methods of making same.
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Benz, Volker; Lorenz, Hans; Meier-Kaiser, Michael; Müller, Michael; Pöhlmann, Klaus-Ernst, Plastic composites made from incompatible plastics.
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Larson Brent D., Polarization sensitive scattering element.
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Bruzzone, Charles L.; Aastuen, David J. W.; Strharsky, Roger J.; Eckhardt, Stephen K.; Weber, Michael F.; Boyd, Gary T., Polarizing beam splitter.
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Jonza James M. ; Weber Michael F. ; Ouderkirk Andrew J. ; Stover Carl A., Polarizing beam-splitting optical component.
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Benson, Jr., Olester; Brott, Robert L.; Fleming, Patrick R.; Hart, Shandon D.; Ouderkirk, Andrew J., Polymer fiber polarizers with aligned fibers.
상세보기
Ouderkirk,Andrew J.; Benson, Jr.,Olester; Brott,Robert L.; Fleming,Patrick R.; Leatherdale,Catherine A.; Neavin,Terence D.; North,Diane, Polymer photonic crystal fibers.
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Kollaja, Richard A.; Eckstein, Axel; Floyd, Robert M., Polymeric coextruded multilayer articles.
상세보기
Ouderkirk,Andrew J.; Benson, Jr.,Olester; Brott,Robert L.; Fleming,Patrick R.; Leatherdale,Catherine A.; Neavin,Terence D.; North,Diane, Polymeric photonic crystals with co-continuous phases.
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Hirt, Douglas E.; Husson, Scott M.; Walters, Keisha B.; Zhang, Chun, Polymeric structures with patterned reactivity.
상세보기
Merrill, William W.; Jonza, James M.; Benson, Jr., Olester; Ouderkirk, Andrew J.; Weber, Michael F., Post-formable multilayer optical films and methods of forming.
상세보기
Merrill, William W.; Jonza, James M.; Benson, Jr., Olester; Ouderkirk, Andrew J.; Weber, Michael F.; Keller, Janet T.; Stumo, Roger J., Post-formable multilayer optical films and methods of forming.
상세보기
Merrill William W. ; Allen Richard C. ; Condo Peter D. ; Benson ; Jr. Olester, Post-forming continuous/disperse phase optical bodies.
상세보기
Malyak, Phillip H.; Uebbing, John; Hajjar, Roger A., Post-objective scanning beam systems.
상세보기
Malyak, Phillip H.; Uebbing, John; Hajjar, Roger A., Post-objective scanning beam systems.
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Peronnet Paquin,Anne Therese; Meunier,Michel Jacques; Nevouet,Jacques Camille; Dheur,Jean Luc, Preparation of co-extruded multi-layered rubber composite and use as component of a tire.
상세보기
Jonza James M. ; Weber Michael F. ; Ouderkirk Andrew J. ; Stover Carl A., Process for forming reflective polarizer.
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Wheatley,John A.; Ouderkirk,Andrew J.; Nevitt,Timothy J.; Weber,Michael F., Red-green-blue polymeric interference film.
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Aastuen, David J. W.; Bruzzone, Charles L., Reflective LCD projection system using wide-angle cartesian polarizing beam splitter and color separation and recombination prisms.
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O'Neill Mark ; Weber Michael F. ; Benson ; Jr. Olester ; Wheatley John A.,GBX ; Jonza James M. ; Hanson Gary B., Reflective article with concealed retroreflective pattern.
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Weber, Michael F.; Benson, Jr., Olester; Cobb, Jr., Sanford; Jonza, James M.; Ouderkirk, Andrew J.; Wortman, David L.; Stover, Carl A., Reflective polarizer having improved properties and optical display with improved reflective polarizer.
상세보기
Ouderkirk, Andrew J.; Allen, Richard C.; Fleming, Patrick R.; North, Diane; Ruff, Andrew T.; Thunhorst, Kristin L., Reflective polarizers containing polymer fibers.
상세보기
Ouderkirk,Andrew J.; Allen,Richard C; Fleming,Patrick R.; North,Diane; Ruff,Andrew T.; Thunhorst,Kristin L., Reflective polarizers containing polymer fibers.
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Weber Michael F. ; Cull Brian D. ; Hoffman Kevin M. ; Ouderkirk Andrew J., Reflective polarizers having extended red band edge for controlled off axis color.
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Michael F. Weber ; Brian D. Cull ; Kevin M. Hoffman ; Andrew J. Ouderkirk, Reflective polarizers having extended red band edge for reduced off axis color.
상세보기
Takashi Harada JP; Yorinobu Takamatsu JP; Makoto Ishikawa JP; Charles L. Bruzzone ; Robert S. Moshrefzadeh ; Timothy J. Nevitt ; Andrew J. Ouderkirk, Reflective projection screen and projection system.
상세보기
Topolkaraev,Vasily A., Responsive film with corrugated microlayers having improved properties.
상세보기
Benson ; Jr. Olester ; Weber Michael F. ; Wheatley John A.,GBX ; Ouderkirk Andrew J. ; Fellows Benjamin T. ; Garland Wilson C. ; Wong Mel Y., Retroreflective dichroic reflector.
상세보기
Bukesov, Sergey A.; Hajjar, Roger A., Scanning beams displays based on light-emitting screens having phosphors.
상세보기
Hajjar, Roger A., Servo feedback control based on designated scanning servo beam in scanning beam display systems with light-emitting screens.
상세보기
Hajjar, Roger A.; Butler, Christopher J.; Kent, David L.; Kaluzhny, Mikhail, Servo feedback control based on designated scanning servo beam in scanning beam display systems with light-emitting screens.
상세보기
Hajjar, Roger A., Servo feedback control based on invisible scanning servo beam in scanning beam display systems with light-emitting screens.
상세보기
Hajjar, Roger A.; Burroughs, Alan C.; Pajdowski, Mark A.; Kent, David L.; Uebbing, John; Malyak, Phillip H.; Krall, Donald A., Servo-assisted scanning beam display systems using fluorescent screens.
상세보기
Hajjar, Roger A.; Burroughs, Alan C.; Pajdowski, Mark A.; Kent, David L.; Uebbing, John; Malyak, Phillip H.; Krall, Donald A., Servo-assisted scanning beam display systems using fluorescent screens.
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Oliver, Gary D.; Pitsch, Dale P.; Truscott, Michael K., System and method for making multilayer films and a layer multiplication device.
상세보기
Bentley, Nicholas, System for demonstrating effects of polarized lens.
상세보기
Meis, Michael A.; Korpela, Susan L.; Janssen, Jeffrey R.; Hager, Patrick J.; Aeling, Ellen O., Thermally conductive LED assembly.
상세보기
Whitney Leland R. ; Allen Gregory D., Toy having image mode and changed image mode.
상세보기
Whitney Leland R., Toy mirror with transmissive image mode.
상세보기
Ouderkirk Andrew J. ; Cobb ; Jr. Sanford ; Cull Brian D. ; Weber Michael F. ; Wortman David L., Transflective displays with reflective polarizing transflector.
상세보기
Ouderkirk Andrew J. ; Cobb ; Jr. Sanford ; Cull Brian D. ; Weber Michael F. ; Wortman David L., Transflective displays with reflective polarizing transflector.
상세보기
Ouderkirk, Andrew J.; Cobb, Jr., Sanford; Cull, Brian D.; Weber, Michael F.; Wortman, David L., Transflective displays with reflective polarizing transflector.
상세보기
Ouderkirk, Andrew J.; Gilbert, Laurence R.; Dahlen, Richard R.; Weber, Michael F., Transparent multilayer device.
상세보기
Leland R. Whitney ; Andrew J. Ouderkirk, Visible mirror film glitter.
상세보기
Topolkaraev Vasily ; Soerens Dave A. ; Branham Kelly Dean, Water degradable microlayer polymer film and articles including same.
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활용도 분석정보

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다운로드

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활용도 Top5 특허

해당 특허가 속한 카테고리에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다.
더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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[미국특허] Coextrusion of multilayer articles using protective boundary layers and apparatus therefor 원문보기

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[미국특허] Coextrusion of multilayer articles using protective boundary layers and apparatus therefor 원문보기

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