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Manufacture of film from partially crosslinked polyethylene 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B29D-023/04
  • C08F-110/02
출원번호 US-0030708 (1979-04-16)
우선권정보 GB-0015202 (1978-04-18)
발명자 / 주소
  • Harbourne David A. (Kingston CAX)
출원인 / 주소
  • Du Pont Canada Inc. (Montreal CAX 03)
인용정보 피인용 횟수 : 45  인용 특허 : 0

초록 ▼

The present invention provides a process for the manufacture of a polyethylene film having improved tear strength in the transverse direction. The process involves extruding a partially crosslinked polyethylene into film having a thickness between 10 and 100 m3 and a melt index in the range of 0.2 t

대표청구항 ▼

A blown film process in which partially crosslinked polyethylene is extruded into film having a thickness in the range of 10 to 100 m1.2:1 to 4:1 and a MD draw down ratio in the range of 2 to 60, said polyethylene having had before crosslinking, a density in the range of 0.940 to 0.970 g/cm3 and a m

이 특허를 인용한 특허 (45)

  1. Hendrix James Easton ; Vaughan Dennis Joseph ; Rakes James Lee ; Walker John Henry, Crosslinkable polymeric coatings and films and composite structures incorporating same.
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  2. Shen, Fu-Wen; McKellop, Harry A.; Salovey, Ronald, Crosslinking of polyethylene for low wear using radiation and thermal treatments.
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  3. Shen, Fu-Wen; McKellop, Harry A.; Salovey, Ronald, Crosslinking of polyethylene for low wear using radiation and thermal treatments.
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  4. Shen, Fu-Wen; McKellop, Harry A.; Salovey, Ronald, Crosslinking of polyethylene for low wear using radiation and thermal treatments.
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  5. Itaba Yasushi (Tokyo JPX) Saito Keichiro (Saitama JPX) Tabuchi Jyoichi (Saitama JPX) Yoshizawa Masao (Tokyo JPX), Differentially crosslinked and oriented polyethylene film.
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  6. Lu Pang-Chia (Pittsford NY), HDPE films with imbalanced biaxial orientation.
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  7. Lu Pang-Chia (Pittsford NY), HdPE films with imbalanced biaxial orientation.
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  8. Mizutani Tomoji (Yatsushiro JPX) Fukushima Hitoshi (Yatsushiro JPX) Sakamoto Yoshihiro (Yatsushiro JPX), Heat shrinkable film and process for preparing the same.
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  9. Poloso Anthony, High density polyethylene with improved thermoforming characteristics.
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  10. Szul,John F.; Farley,James McLeod; McCullough,Laughlin G.; Impelman,Ryan Winston, High tear films from hafnocene catalyzed polyethylenes.
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  11. Szul,John F.; Farley,James McLeod; McCullough,Laughlin G.; Impelman,Ryan Winston, High tear films from hafnocene catalyzed polyethylenes.
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  12. Smith, C. Allen; Close, Kenneth B.; Beck, Richard C.; Shultz, Jay S.; Baer, David J.; Shawver, Susan E.; Estey, Paul W.; Parikh, Deepak R.; Stewart, Jr., Kenneth B., Laminates of elastomeric and non-elastomeric polyolefin blend materials.
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  13. Smith, C. Allen; Close, Kenneth B.; Beck, Richard C.; Shultz, Jay S.; Baer, David J.; Shawver, Susan E.; Estey, Paul W.; Parikh, Deepak R.; Stewart, Jr., Kenneth B., Laminates of elastomeric and non-elastomeric polyolefin blend materials.
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  14. Kurtz Stuart J. (Martinsville NJ) Potts James E. (Millington NJ), Low level irradiated linear low density ethylene/alpha-olefin copolymers and film extruded therefrom.
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  15. Louis R. Duckwall, Jr. ; David H. Bostian ; Eric Hatfield, Machine direction oriented high molecular weight, high density polyethylene films with enhanced water vapor transmission properties.
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  16. Kiang Joseph K. (Los Altos CA) Tsou Patrick K. C. (Half Moon Bay CA) Vogdes Christine E. (Mountain View CA), Method of making high strength polyethylene fiber.
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  17. Itaba Yasushi (Tokyo JPX) Yoshino Tadao (Saitama JPX) Yoshifuji Yutaka (Saitama JPX) Saito Keichiro (Saitama JPX) Tabuchi Jyoichi (Saitama JPX), Method of producing crosslinked polyethylene stretched film.
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  18. Itaba Yasushi (Tokyo JPX) Saito Keichiro (Saitama JPX) Tabuchi Jyoichi (Saitama JPX) Yoshizawa Masao (Tokyo JPX), Method of producing oriented polyethylene film.
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  19. Wang, Aiguo; Essner, Aaron Paul; Zarnowski, Alfred J., Methods for preparing selectively cross-linked polyethylene orthopedic devices.
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  20. Deh-Chuan Sun ; Casper F. Stark, Non-oxidizing polymeric medical implant.
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  22. Sun, Deh-Chuan; Stark, Casper F., Non-oxidizing polymeric medical implant.
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  23. Sun, Deh-Chuan; Stark, Casper F., Non-oxidizing polymeric medical implant.
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  24. Poloso,Anthony; Johnson,Jerry M, Oxygen tailoring of polyethylene blow molding resins.
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  25. Breese, D. Ryan, Polyethylene films having high resistance to deformation or elgonation.
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  26. Breese, D. Ryan, Polyethylene films having high resistance to deformation or elongation.
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  27. Farley, James McLeod; Szul, John F.; McKee, Matthew Gary, Polyethylene films with improved physical properties.
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  28. Farley, James McLeod; Szul, John F.; McKee, Matthew Gary, Polyethylene films with improved physical properties.
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  29. Itaba Yasushi (Tokyo JPX) Yoshino Tadao (Saitama JPX) Yoshifuji Yutaka (Saitama JPX) Saito Keichiro (Saitama JPX) Tabuchi Jyoichi (Saitama JPX), Polyethylene stretched film.
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  30. Saitoh Keichiro (Iruma JPX) Itaba Yasushi (Higashi-Kurume JPX) Izawa Minoru (Iruma JPX) Yoshino Tadao (Minami-Saitama JPX), Process for producing a crosslinked and oriented polyethylene film.
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  31. Merrill, Edward W.; Harris, William H.; Jasty, Murali; Bragdon, Charles R.; O'Connor, Daniel O.; Venugopalan, Premnath, Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices.
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  32. Merrill, Edward W.; Harris, William H.; Jasty, Murali; Muratoglu, Orhun K.; Bragdon, Charles R.; O'Connor, Daniel O.; Venugopalan, Premnath, Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices.
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  33. Merrill, Edward W.; Harris, William H.; Jasty, Murali; Muratoglu, Orhun; Bragdon, Charles R.; O'Connor, Daniel O.; Venugopalan, Premnath, Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices.
    상세보기
  34. Merrill, Edward W.; Harris, William H.; Jasty, Murali; Muratoglu, Orhun; Bragdon, Charles R.; O'Connor, Daniel O.; Venugopalan, Premnath, Radiation melt treated ultra high molecular weight polyethylene prosthetic devices.
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  35. Bredemus, Alex; Dalquist, Kurt; Gronlund, Patrick J.; Meyer, Ray; Deaner, Michael J., Reduced visibility insect screen.
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  36. Pylkki,Russell John; Gronlund,Patrick Jerome; Williams,Rodney Kieth; Heikkila,Kurt E., Reduced visibility insect screen.
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  37. Wang, Aiguo; Dumbleton, John H.; Essner, Aaron; Yau, Shi Shen, Sequentially cross-linked polyethylene.
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  38. Wang, Aiguo; Dumbleton, John H.; Essner, Aaron; Yau, Shi-Shen, Sequentially cross-linked polyethylene.
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  39. Wang, Aiguo; Dumbleton, John H.; Essner, Aaron; Yau, Shi-Shen, Sequentially cross-linked polyethylene.
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  40. Wang, Aiguo; Dumbleton, John H.; Essner, Aaron; Yau, Shi-Shen, Sequentially cross-linked polyethylene.
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  41. Wang, Aiguo; Dumbleton, John H.; Essner, Aaron; Yau, Shi-Shen, Sequentially cross-linked polyethylene.
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  42. Wang, Aiguo; Dumbleton, John H.; Essner, Aaron; Yau, Shi-Shen, Sequentially cross-linked polyethylene.
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  43. Wang, Aiguo; Dumbleton, John H.; Essner, Aaron; Yau, Shi-Shen, Sequentially cross-linked polyethylene.
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  44. Schroeder, David W.; Freedman, Jordan H.; Gunter, James E.; Salyer, Brian D.; Hawkins, H. Gene, Solid state deformation processing of crosslinked high molecular weight polymeric materials.
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  45. Davison Sol (Houston TX), Thermoforming process using modified polymer blend.
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