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Method for preparing radiation resistant polypropylene articles 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B29C-047/88
  • B29C-071/04
출원번호 US-0302126 (1989-01-24)
발명자 / 주소
  • Krueger Dennis L. (St. Paul MN) Insley Thomas I. (St. Paul MN) Meyer Daniel E. (St. Paul MN) Rolando Richard J. (St. Paul MN)
출원인 / 주소
  • Minnesota Mining and Manufacturing Company (St. Paul MN 02)
인용정보 피인용 횟수 : 24  인용 특허 : 12

초록

Irradiated polypropylene articles of non-crystalline mesomorphous polypropylene and a method for preparing the articles are provided. The articles are irradiated with a sterilizing dosage of ionizing radiation. The irradiated articles such as films and blown microfiber webs are substantially undegra

대표청구항

A method for preparing irradiated polypropylene articles comprising: (a) extruding a polymer consisting essentially of polypropylene; (b) quenching said extruded polypropylene immediately after extrusion to provide non-crystalline mesomorphous polypropylene; and (c) irradiating said non-crystalline

이 특허에 인용된 특허 (12)

  1. Williams ; Joel ; Dunn ; Terry ; Stannett ; Vivian, Irradiation sterilization of semi-crystalline polymers.
  2. Kosegaki Kimiho (Yokkaichi JPX) Takeshita Ryushiro (Yokkaichi JPX) Kobayashi Kazuhiko (Ibaragi JPX), Medical instruments made from a polyolefin composition which has been sterilized with gamma irradiation.
  3. Hagiwara Satoru (Otsu JPX) Ishizuka Ichiro (Otsu JPX) Okabe Kazuo (Shiga JPX), Method for producing a thermoplastic polymeric sheet.
  4. Weber Robert E. (Appleton WI) Peterson Richard M. (Appleton WI), Method for rapid quenching of melt blown fibers.
  5. Takagi Norio (Zama JPX) Aoyagi Hiroshi (Iwakuni JPX), Process for preparing cast film of thermoplastic resin.
  6. Hagiwara ; Miyuki ; Araki ; Kunio ; Matsuoka ; Shingo ; Fujimura ; Syuni chi, Process for producing molded product composed of crosslinked resin or crosslinked-resin coated material on a substrate.
  7. Rekers John W. (Spartanburg SC), Radiation-stable polyolefin compositions.
  8. Rekers John W. (Spartanburg SC), Radiation-stable polyolefin compositions containing benzaldehyde acetals.
  9. Hirao Seiji (Ichihara JA), Radiation-sterilized shaped articles of olefin polymers.
  10. Williams Joel (Cary NC) Dunn Terry (Raleigh NC) Stannett Vivian (Raleigh NC), Semi-crystalline polymers stabilized for irradiation sterilization.
  11. Williams Joel (Cary NC) Dunn Terry (Raleigh NC) Stannett Vivian (Raleigh NC), Semi-crystalline polymers stabilized for irradiation sterilization.
  12. Wedel Carroll J. (Walnut Creek CA) Steckhahn Frank L. (Walnut Creek CA) Gardner John David (Richmond CA), Ultraviolet protectorant composition.

이 특허를 인용한 특허 (24)

  1. Trent,John S.; Randall,Francis J.; Kovara,Terry M.; Runkel,James J., Bottles made from metallocene polypropylene for delivery of fragrances.
  2. Rousseau Alan D. ; Jones Marvin E. ; Mei Betty Z., Electret articles and filters with increased oily mist resistance.
  3. Rousseau Alan D. ; Jones Marvin E. ; Mei Betty Z., Electret filters that exhibit increased oily mist resistance.
  4. Ambrose Julia Teems (Marietta GA) Bolian ; II Charles Edward (Buford GA) Ellis Stephen E. (Andover MA) Worthington Jeffery H. (Saugus MA), Gamma irradiated aseptically tieable gown.
  5. Gupta Rakesh K. (Conyers GA) Kozulla Randall E. (Social Circle GA) Legare Richard J. (Conyers GA), Gamma-sterilizable barrier fabrics.
  6. Ward, Ian MacMillan; Hine, Peter John; Norris, Keith, Interlayer hot compaction.
  7. Ward, Ian MacMillan; Hine, Peter John; Norris, Keith, Interlayer hot compaction.
  8. Dang, Vu A.; Fezza, Richard J.; Schneckenburger, Daniel E.; Song, Cheng Q., Irradiated, oxidized olefin polymer coupling agents.
  9. Philip D. Eitzman ; Alan D. Rousseau, Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid.
  10. Seyed A. Angadjivand ; Michael G. Schwartz ; Philip D. Eitzman ; Marvin E. Jones, Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid.
  11. Wilfong Debra L. ; Rolando Richard J., Method of forming multilayered barrier structures.
  12. Philip D. Eitzman ; Alan D. Rousseau ; Marvin E. Jones ; Seyed A. Angadjivand, Method of making a fibrous electret web using a nonaqueous polar liquid.
  13. Rousseau Alan D. ; Jones Marvin E. ; Mei Betty Z., Method of making electret articles and filters with increased oily mist resistance.
  14. Rousseau Alan D. ; Jones Marvin E. ; Mei Betty Z., Method of removing particulate solid or liquid aerosol from a gas.
  15. Qin, Chuan; Ryan, Patrick T.; Ling, Michael T. K.; Rostron, Donna L.; Ding, Yuanpang S.; Woo, Lecon; Mizener, Susan R.; Lal, Birendra K., Method of surface modifying a medical tubing.
  16. Wilfong Debra L. ; Rolando Richard J., Method of using a multilayered barrier structure.
  17. Rolando Richard J. (Oakdale MN) Krueger Dennis L. (Hudson WI) Meyer Daniel E. (Stillwater MN) Insley Thomas L. (Lake Elmo MN), Preparing polypropylene articles.
  18. Ward, Ian MacMillan; Hine, Peter John; Norris, Keith, Process for fabricating polymeric articles.
  19. Ward, Ian MacMillan; Hine, Peter John; Norris, Keith, Process for fabricating polymeric articles.
  20. Ward, Ian MacMillan; Hine, Peter John; Norris, Keith, Process for fabricating polymeric articles.
  21. Ward, Ian M; Hine, Peter J, Process for fabricating polypropylene sheet.
  22. Eitzman, Philip D.; Rousseau, Alan D., Process of making a fibrous electret web.
  23. Kozimor Renee A. ; Portnoy Robert C., Radiation tolerant polypropylene and its useful articles.
  24. Gupta Rakesh K. (Conyers GA) Williams Jon R. (Social Circle GA), Random macrodomain multiconstituent fibers, their preparation, and nonwoven structures from such fibers.
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