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특허 상세정보

Process and apparatus for forming plastic sheet

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B32B-003/02   
미국특허분류(USC) 428/0641; 428/0653
출원번호 US-0723140 (2000-11-27)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    S. Matthew Cairns
인용정보 피인용 횟수 : 2  인용 특허 : 20
초록

Disclosed is an apparatus for formation of high quality plastic sheet in a continuous fashion. Also disclosed are a variety of optical and electronic display applications for high quality plastic sheet produced in a continuous fashion.

대표
청구항

1. A magnetic storage medium comprising a high quality plastic sheet having a magnetic layer disposed on at least one side of the sheet; wherein the plastic sheet is produced by the process comprising the steps of:a) providing molten plastic resin; b) directing the molten plastic resin to an overflow die having an inlet and an outlet; c) shaping the molten plastic resin into a molten web using said overflow die; d) guiding said molten web away from said overflow die; and e) cooling said molten web to form a solid sheet; wherein the plastic sheet has an o...

이 특허에 인용된 특허 (20)

  1. Funk Karl (Griesheim DEX) Gross Heinz (Rossdorf DEX). Extruded solid plastic sheet or film. USP1993095242742.
  2. Ota Masataka (Kanagawa JPX) Endo Yasushi (Kanagawa JPX) Hayakawa Satoru (Kanagawa JPX) Kawamata Toshio (Kanagawa JPX). Flexible magnetic recording disk and method for preparing the same. USP1995025389418.
  3. Kawamata Toshio (Kanagawa JPX) Hayakawa Satoru (Kanagawa JPX) Endo Yasushi (Kanagawa JPX). Magnetic recording disk. USP1996085549955.
  4. Saito Shinji (Kanagawa JPX) Yamazaki Nobuo (Kanagawa JPX) Noguchi Hitoshi (Kanagawa JPX). Magnetic recording medium with longitudinal glossiness 200% or more. USP1996035496653.
  5. Hackman Lloyd E. (Worthington OH) Dickson James (Stirling NJ) Dunlap David L. (Gahanna OH) Handshey Mark E. (Columbus OH). Melt overflow system for producing filamentary and film products directly from molten materials. USP1990064930565.
  6. Shvartsman Felix P. (Wilmington DE). Method for replicating holographic optical elements. USP1994015279689.
  7. Gross Heinz (Rossdorf DEX) Fetzer Andreas (Bickenbach DEX) Dickhaut Gnther (Riedstadt DEX). Method of manufacturing thermoplastic sheet or film. USP1992095149481.
  8. Horie Michikazu (Yokohama JPX) Kunitomo Haruo (Yokohama JPX) Ohno Takashi (Yokohama JPX) Takada Kenichi (Yokohama JPX) Mizuno Hironobu (Yokohama JPX). Optical recording medium. USP1996125581539.
  9. Chen Wenpeng (Bethesda MD) Guha Shekhar (Baltimore MD) Worchesky Terrance L. (Columbia MD) Ritter Kenneth J. (Sykesville MD) Tadros Maher E. (Ellicott City MD) Kang Keith (Ellicott City MD). Optical volume memory. USP1995125472759.
  10. Otsuji Atsuo,JPX ; Suzuki Rihoko,JPX ; Sugimoto Kenichi,JPX ; Urakami Tatsuhiro,JPX ; Takuma Keisuke,JPX. Polycarbonate copolymer and applications thereof. USP2000026028161.
  11. Davis Gary Charles ; Caruso Andrew James ; Wetzel Joseph Richard ; Hariharan Ramesh ; Wisnudel Marc Brian. Polycarbonates suitable for use in optical articles. USP1999126001953.
  12. Daecher Jeffrey Lawrence ; Fields Steven David ; Khanarian Garo ; Stein Alan Daniel. Process and apparatus for forming plastic sheet. USP2001026183829.
  13. Fields Steven David ; Galione James Ralph. Process and apparatus for forming plastic sheet. USP2001056224805.
  14. Fields Steven David ; Khanarian Garo ; Daecher Jeffrey Lawrence ; Stein Alan Daniel. Process and apparatus for forming plastic sheet. USP2001086280808.
  15. Santoh Tsuyoshi (Yokohama JPX) Sugata Hiroyuki (Yamato JPX) Yashima Masataka (Yokohama JPX) Kamitakahara Hirofumi (Yokohama JPX) Yoshino Hitoshi (Tokyo JPX) Kanome Osamu (Kawasaki JPX) Sato Tetsuya (. Process for producing substrate sheet for information recording mediums. USP1996055516469.
  16. Wank Joachim (Dormagen DEX) Weber Hans L. (Rommerskirchen DEX) Burkhardt Claus (Krefeld DEX) Freitag Dieter (Krefeld DEX) Schulte Bernhard (Krefeld DEX) Waldenrath Werner (Cologne DEX). Process for the production of optically isotropic extrusion films. USP1991125076987.
  17. Funk Karl (Griesheim DEX) Gross Heinz (Rossdorf DEX). Producing extruded solid plastic sheet and film. USP1994025286436.
  18. Curchod Donald B.. Roll former for an extruded fresnel lens. USP1998065770122.
  19. Taniguchi Takashi (Yasu-gun JPX) Tanaka Kazuo (Gamo-gun JPX) Adachi Shinya (Otsu JPX) Maekawa Masaki (Otsu JPX). Sheetlike article for optical use. USP1997035612432.
  20. Takahashi Nobukazu (Yokohama JPX) Kohara Teiji (Kawasaki JPX) Natsuume Tadao (Yokosuka JPX). Thermoplastic materials and article made therefrom. USP1993025187012.