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Method for increasing the strength of a paper or paperboard product 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • D21C-009/00
출원번호 US-0935387 (1997-09-23)
발명자 / 주소
  • Hubbe Martin A.
  • Wagle Dinkar G.
  • Ruckel Erwin R.
출원인 / 주소
  • International Paper Company
대리인 / 주소
    Luedeka, Neely & Graham P.C.
인용정보 피인용 횟수 : 24  인용 특허 : 12

초록

Processes for increasing the strength of cellulosic fibers are carried out by contacting relatively dry cellulosic fibers with an agent in particulate or vapor form comprising a carboxylic acid cyclic anhydride at an elevated temperature for a time sufficient to significantly increase the bonding st

대표청구항

[ What is claimed is:] [1.] A method for treating cellulosic fibers to improve the strength of the fibers which comprises contacting cellulosic fibers having a moisture content of about 20% or less with from about 0.01 to about 10 percent based on oven-dried weight of fibers of an agent in particula

이 특허에 인용된 특허 (12)

  1. Herron Carlisle M. (Memphis TN) Cooper David J. (Memphis TN), Absorbent structure containing individualized, polycarboxylic acid crosslinked wood pulp cellulose fibers.
  2. Chan ; Lock-Lim ; Schaffer ; Joseph F., Dry strength paper and process therefor.
  3. Bertozzi Eugene R. (Yardley PA) Hoffman Robert F. (Delran NJ) Barclay Robert (Trenton NJ), Low temperature plasticizers for specialty rubbers consisting of diesters of dicarboxylic acids with hexyloxyethoxyethan.
  4. Arkens Charles T. (Hatfield PA) Egolf Scott L. (Lansdale PA) Gleim Robert D. (New Hope PA) Hsu Oscar H. (Lansdale PA) Wiesinger Kenneth J. (Ambler PA), Method for strengthening cellulosic substrates.
  5. Arkens Charles Thomas ; Egolf Scott Lind ; Gleim Robert David ; Hsu Oscar Hsien-Hsiang ; Wiesinger Kenneth John, Method for strengthening cellulosic substrates, celluosic non woven wipes, and paper filter stock.
  6. Shisko Walter S. (Corbeil CAX), Method of manufacturing fiberboard and fiberboard produced thereby.
  7. Rave Terence W. (Wilmington DE), Paper strengthened with glyoxal modified poly(b 상세보기
  • Chan Lock-Lim (Whitby CA) Guitard Arthur Herbert (Pickering CA), Paper with synergistic dry strength additives and process therefor.
  • Rave Terence W. (Wilmington DE), Preparation of hydrophilic polyolefin fibers for use in papermaking.
  • Hazard ; Jr. Sherrill J. (Appleton WI), Process for crosslinking of cellulosic fibers.
  • Nakamura Masato (Tokyo JPX) Nomura Yoshika (Tokyo JPX) Katori Tamio (Tokyo JPX), Process for producing pulp.
  • Harris Arthur (Cheshire GB2) Burrows John (Cheshire GB2) Wilson David (Manchester GB2), Process for the prevention of scale formation in wood pulp production.
  • 이 특허를 인용한 특허 (24)

    1. Cheng, Weiguo; Broadus, Katherine M; Smoron, Dorota; Wilson, Shawnee M, Anionic preflocculation of fillers used in papermaking.
    2. Richard A. Jewell, Carboxylated cellulosic fibers.
    3. Jewell, Richard A., Carboxylated cellulosic fibrous web and method of making the same.
    4. Soane, David S.; Berg, Michael C.; Mowers, William A., Compositions and methods for imparting oil repellency and/or water repellency.
    5. Jewell, Richard A., Fibrous composition including carboxylated cellulosic fibers.
    6. Sun Tong ; Lindsay Jeffrey D., Flash curing of fibrous webs treated with polymeric reactive compounds.
    7. Soane, David S.; Berg, Michael C.; Mowers, William A., Functionalization of paper components.
    8. Zhao, Yulin; Li, Jun; Long Rao, Qing; Cheng, Weiguo, Furnish pretreatment to improve paper strength aid performance in papermaking.
    9. Zhao, Yulin; Li, Jun; Rao, Qing Long; Cheng, Weiguo, Furnish pretreatment to improve paper strength aid performance in papermaking.
    10. Patel, Shilpan Pravinchandra; Thanawala, Nikita Kamlesh, High strength paper and process of manufacture.
    11. Ban, Weiping; Hoekstra, Philip M.; Elsey, Michael R., Method and system for producing market pulp and products thereof.
    12. Runge, Troy Michael; Coe, Louise Cynthia Ellis; Goulet, Mike Thomas; Nishihata, Ricardo Toru; Sacon, Vera Maria, Method for applying chemical additives to pulp during the pulp processing and products made by said method.
    13. Runge,Troy Michael; Coe,Louise Cynthia Ellis; Goulet,Mike Thomas; Hu,Sheng Hsin, Method for applying water insoluble chemical additives with to pulp fiber.
    14. Jewell, Richard A., Method for enhancing the softness of a fibrous web.
    15. Jewell, Richard A.; Neogi, Amar N.; White, Steven J., Method for increasing filler retention of cellulosic fiber sheets.
    16. Jewell, Richard A.; Neogi, Amar N.; White, Steven J., Method for increasing filler retention of cellulosic fiber sheets.
    17. Runge, Troy Michael; Coe, Louise Cynthia Ellis; Goulet, Mike Thomas; Nishihata, Ricardo Toru; Sacon, Vera Maria, Method for using water insoluble chemical additives with pulp and products made by said method.
    18. Zhao, Yulin; Li, Jun; Rao, Qing Long; Ashton, Stephen; Cheng, Weiguo; Todorovic, Aleksandar; Smith, Alan, Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking.
    19. Zhao, Yulin; Li, Jun; Rao, Qing Long; Ashton, Stephen; Cheng, Weiguo; Todorovic, Aleksandar; Smith, Alan, Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking.
    20. Jewell, Richard A., Method of increasing the wet strength of a fibrous sheet.
    21. Sun, Tong; Lindsay, Jeffrey D., Patterned application of polymeric reactive compounds to fibrous webs.
    22. Ballinger, Thomas W., Process for making a stiffened paper.
    23. Ballinger, Thomas W., Process for making a stiffened paper.
    24. Sun Tong ; Lindsay Jeffrey D., Reactive compounds to fibrous webs.
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