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특허 상세정보

Gear throttle as a nucleation device in a continuous microcellular extrusion system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08J-009/00   
미국특허분류(USC) 521/079 ; 264/053 ; 425/04R ; 425/817R ; 521/081 ; 521/155 ; 521/917
출원번호 US-0696650 (1996-08-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Neuner
인용정보 피인용 횟수 : 30  인용 특허 : 40
초록

Disclosed herein is an improvement in microcellular or supermicrocellular polymer extrusion systems. Both conventional and microcellular systems employ an extruder which plasticates polymer pellets into a polymer melt; a gas metering system, whereby a gas is injected directly in the polymer melt flow in the extruder; a mixing and homogenizing section of the extruder, which creates a single-phase solution of the polymer and the gas; and a nucleation device at the outlet end of the extruder. In this invention, the improvement to the conventional system com...

대표
청구항

[ What is claimed is:] [1.] A method of producing supermicrocellular polymer foams comprising forming foamed polymers with average cell sizes of less than about 0.05 .mu.m by extruding a single-phase solution of a polymer and a gas through a nucleation device associated with an extruder, wherein the nucleation device is a gear pump acting as a throttle nucleator.

이 특허에 인용된 특허 (40)

  1. Cheng Alan T. (Livingston NJ). Apparatus and method for producing and molding structural foam. USP1992035098267.
  2. Shimano Takashi (Ichihara JA) Orimo Katsumi (Ichihara JA) Yamamoto Shoji (Ichihara JA) Azuma Masao (Chiba JA). Apparatus for producing a foamed thermoplastic resin article. USP1976093981649.
  3. Takano Hideo (Hitachi JPX) Shimohori Yukio (Hitachi JPX) Fukuda Shigeho (Hitachi JPX). Apparatus for producing foamed plastic insulated wires. USP1981044260351.
  4. Stone Herman (Hazleton PA) Lichvar Steve (Drifton PA) Bredbenner Charles W. (Hazleton PA) Rupp Richard (Wapwallopen PA) Minnich Elmer (Hazleton PA). Blowing agents for polyurethane foam. USP1990034906672.
  5. Campbell Gregory A. (Canton NY) Rasmussen Don H. (Canton NY). Controlled microcellular foams of crystalline amorphous polymers. USP1994115369135.
  6. Campbell Gregory A. (Canton NY) Rasmussen Don H. (Canton NY). Controlling heterogeneous nucleation and growth of foams. USP1994105358675.
  7. McAlister Roy E. (5285 Red Rock North Phoenix AZ 85018). Extrusion apparatus for making stabilized polyester. USP1982094350663.
  8. Brambilla Romano (Modena ITX). Extrusion head for foamed material, in particular for polyvinylchloride-based foamed material. USP1992065124096.
  9. Buckmaster Marlin D. (Vienna WV) Randa Stuart K. (Wilmington DE). Foam nucleation system for fluoropolymers. USP1988084764538.
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  11. Blythe James E. (Williamson NY) Colombo Edward A. (Penfield NY) Krutchen Charles M. (Pittsford NY) Williams Phillip A. (Naples NY) Wu Wen-Pao (Pittsford NY). High melt index polystyrene foam and method. USP1994025286429.
  12. Blythe James E. (Williamson NY) Colombo Edward A. (Penfield NY) Krutchen Charles M. (Pittsford NY) Williams Phillip A. (Naples NY) Wu Wen-Pao (Pittsford NY). High melt index polystytene foam and method. USP1994105356944.
  13. Muschiatti Lawrence C. (Wilmington DE). High speed insulated conductors. USP1993075227103.
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  21. Hayashi, Motoshige; Kobayashi, Toshiro. Method for production of thermoplastic resin foams. USP1985104548775.
  22. Perman Craig A. (Woodbury MN) Hendrickson William A. (Houlton WI) Riechert Manfred E. (Maplewood MN). Method of making thermoplastic foamed articles using supercritical fluid. USP1997095670102.
  23. Martini-Vvedensky Jane E. (Sudbury MA) Suh Nam P. (Falls Church VA) Waldman Francis A. (London GB2). Microcellular closed cell foams and their method of manufacture. USP1984094473665.
  24. Elliott ; Jr. Jarrell R. (Northfield Center OH) Srinivasan Gokul (Akron OH) Dhanuka Manish (Akron OH) Akhaury Ranjan (Akron OH). Microcellular foams. USP1992075128382.
  25. Colton Jonathan S. (Atlanta GA) Suh Nam P. (Sudbury MA). Microcellular foams of semi-crystaline polymeric materials. USP1992115160674.
  26. Cha Sung W. (Cambridge MA) Suh Nam P. (Sudbury MA) Baldwin Daniel F. (Medford MA) Park Chul B. (Cambridge MA). Microcellular thermoplastic foamed with supercritical fluid. USP1992105158986.
  27. Buckmaster Marlin D. (Vienna WV) Randa Stuart K. (Wilmington DE). Nucleating agents for thermoplastic resins. USP1991075032621.
  28. Johnson D. Emil (Canandaigua NY) Krutchen Charles M. (Pittsford NY) Sharps ; Jr. G. Vincent (Fairport NY). Polymer foam extrusion system. USP1982084344710.
  29. Johnson D. Emil (Canandaigua NY) Krutchen Charles M. (Pittsford NY) Sharps ; Jr. G. Vincent (Fairport NY). Polymer foam process. USP1984014424287.
  30. Welsh Gary C. (Midland MI) Lee Eric K. C. (Waterloo MI CAX) Dalke Brian D. (Midland MI). Polystyrene foam and a process for making the same. USP1994085340844.
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  37. Wienand Michael (Siegburg DT) Hasberg Jurgen (Troisdorf-Oberlar DT) Alfter Franz-Werner (Siegburg DT). Process for the production of sheets of foamed thermoplastics synthetic resins. USP1976023937777.
  38. Baldwin Daniel F. (Medford MA) Suh Nam P. (Sudbury MA) Park Chul B. (Cambridge MA) Cha Sung W. (Cambridge MA). Supermicrocellular foamed materials. USP1994085334356.
  39. Hardenbrook Scott B. (Kent NY) Desmond Cynthia L. (Rochester NY). Thermoformed plastic containers with transparent windows and method of making same. USP1988034728559.
  40. Buckmaster Marlin Dwight ; Henry Donald Leonidas ; Randa Stuart Karl. Two-part nucleating agent system. USP1998015712318.

이 특허를 인용한 특허 피인용횟수: 30

  1. Irwin,Jere F.. Adjustable extruder die assembly die lip adjustment apparatus. USP2007117296991.
  2. Atsuo Teraoka JP; Fumiaki Tsuda JP; Hideo Ohyabu JP. Apparatus for plasticizing material for molding thermoplastic resin foam. USP2002086435853.
  3. Cardona, Juan C.; Levesque, Kevin J.; Burnham, Theodore A.; Matthieu, Alan F.; Kim, Roland Y.. Blowing agent delivery system. USP2005086926507.
  4. Kim, Roland Y.. Blowing agent introduction systems and methods. USP2015089108350.
  5. Kim, Roland Y.. Blowing agent introduction systems and methods. USP2012048162647.
  6. Kim,Roland Y.. Blowing agent introduction systems and methods. USP2006127144532.
  7. Burnham, Theodore A.; Ng, Jeffrey L.. Blowing agent metering system. USP2003096616434.
  8. Cardona, Juan C.. Discontinuous blowing agent delivery system and method. USP2003086602063.
  9. Hollenberg, David H.. Drinking straw prepared from flattened polymeric tubular conduit, method of making same and dispenser therefor. USP2004056736409.
  10. Bosiers, Luc; Salmang-Frohard, Rodolfo. Dynamic mixing pump. USP2014128915643.
  11. Kishbaugh,Levi A.; Levesque,Kevin J.; Guillemette,Albert H.; Chen,Liqin; Xu,Jingyi; Okamoto,Kelvin T.. Fiber-filled molded articles. USP2008047364788.
  12. Gruber, Herbert; Voggeneder, Johann; Kapfer, Manfred. Injection moulding process. USP2004116811730.
  13. Teraoka,Atsuo; Tsuda,Fumiaki; Ohyabu,Hideo. Method and apparatus for forming thermoplastic resin foam. USP2006037008202.
  14. Burnham, Theodore A.; Cha, Sung W.; Walat, Robert H.; Kim, Roland Y.; Anderson, Jere R.; Stevenson, James F.; Suh, Nam P.; Pallaver, Matthew. Method and apparatus for microcellular polymer extrusion. USP2005046884377.
  15. Teraoka, Atsuo; Tsuda, Fumiaki; Ohyabu, Hideo. Method for forming thermoplastic resin foam. USP2004046726862.
  16. Sanyal, Jeet. Method for manufacturing coaxial wire with foamed insulation. USP2003116652786.
  17. Xu, Jingyi; Cardona, Juan C.; Kishbaugh, Levi A.. Method of processing polymers using a single screw. USP2009117615170.
  18. Pallaver, Matthew; Cha, Sung W.. Microcellular thermoplastic elastomeric structures. USP2003096613811.
  19. Sandler, Jan Kurt Walter; Bellin, Ingo; Djuric, Dejan; Kolter, Karl; Ruckdäschel, Holger. Nanoporous foamed active compound-containing preparations based on pharmaceutically acceptable thermoplastically workable polymers. USP2014018636929.
  20. Anantharamaiah, Gattadahalli M.; Fogelman, Alan M.; Navab, Mohamad; Rudolf, Martin. Peptides and peptide mimetics to treat pathologies associated with eye disease. USP2013108568766.
  21. Anderson, Jere R.; Okamoto, Kelvin T.; Blizard, Kent G.. Polymer foam processing with low blowing agent levels. USP2003076593384.
  22. Chen, Ligin; Blizard, Kent; Kim, Roland; Burnham, Ted. Polymer processing system and apparatus. USP2003086602064.
  23. Hughes,Roderick E.. Polymer processing system including decompression chamber and method for using same. USP2006057052260.
  24. Xu,Jingyi; Cardona,Juan C.; Kishbaugh,Levi A.. Polymer processing systems including screws. USP2008017318713.
  25. Sulzbach, Hans-Michael; Raffel, Reiner. Process and device for pressurizing flowable reaction components. USP2003086602971.
  26. Sakamoto Akinobu,JPX ; Nagamatsu Tatsuhiro,JPX. Process for producing uncrosslinked polypropylene-based resin foam sheets and uncrosslinked polypropylene-based resin foam sheets. USP2001096290884.
  27. Yang, Haining; Chen, Xiangdong. Structure and method for creation of a transistor. USP2009067550351.
  28. Anantharamaiah, Gattadahalli M.; Garber, David W.; Datta, Geeta; Handattu, Sheila P.; Mishra, Vinod K.. Synthetic apolipoprotein E mimicking polypeptides and methods of use. USP2013108557767.
  29. Anantharamaiah, Gattadahalli M.; White, C. Roger; Gupta, Himanshu. Synthetic apolipoprotein E mimicking polypeptides and methods of use. USP2016089422363.
  30. Kim, Roland Y.; Burnham, Theodore A.. Valve for injection molding. USP2003126659757.