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Papermaking process with improved retention and drainage 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • D21H-017/34
출원번호 US-0645797 (1991-01-25)
발명자 / 주소
  • Begala Arthur J. (Naperville IL)
출원인 / 주소
  • Nalco Chemcial Company (Naperville IL 02)
인용정보 피인용 횟수 : 60  인용 특허 : 0

초록

A papermaking process includes the steps of adding to the papermaking celllulosic slurry first a high molecular weight cationic polymer and then a medium weight anionic polymer. The cationic polymer is added after the addition of filler, but before at least one of the shear stages to which the slurr

대표청구항

A process in which paper or paperboard is made by forming an aqueous cellulosic papermaking slurry, subjectign said slurry to one or more shear stages, adding to said slurry a mineral filler prior to at least one of said shear stages, adding to said slurry after said addition of said mineral filler

이 특허를 인용한 특허 (60)

  1. Walchuk,Brian; Zhang,Fushan; Harrington,John C.; Carey,William Sean; Brady,Richard Lee, Anionic copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions.
  2. Cheng, Weiguo; Broadus, Katherine M; Smoron, Dorota; Wilson, Shawnee M, Anionic preflocculation of fillers used in papermaking.
  3. Heard Michael ; Chen Gordon ; Stockwell John Oliver,GBX, Anionic water soluble polymer made by reverse phase emulsion polymerization.
  4. Owen David Malcolm,GBX, Application of material to a substrate.
  5. Soerens, Dave Allen; Uttecht, Cathleen Mae; Do, Bao Trong; Oh, SooYeon, Bacteriostatic tissue product.
  6. Hollomon,Martha; Walchuk,Brian L.; Sutman,Frank J., Cationic or amphoteric copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions.
  7. Tokarz,Marek; Nilsson,Jerker, Cellulosic product and process for its production.
  8. Elliott David L. (Imperial PA) Hunter Wood E. (Pittsburgh PA) Falcione Ronald J. (Canonsburg PA), Cellulosic, modified lignin and cationic polymer composition and process for making improved paper or paperboard.
  9. Xiao, Lan; Huang, Xiaodong; Wang, Xuejun; Eastin, Philip; Van't Hul, Jason, Chemical additives to improve oil separation in stillage process operations.
  10. Bruce A. Keiser ; James E. Whitten, Colloids comprising amorphous borosilicate.
  11. Husband, John Claude; Svending, Per; Skuse, David Robert, Compositions.
  12. Cheng, Weiguo; Gray, Ross T., Controllable filler prefloculation using a dual polymer system.
  13. Cheng, Weiguo; Gray, Ross T., Controllable filler prefloculation using a dual polymer system.
  14. Cheng, Weiguo; Gray, Ross T., Controllable filler prefloculation using a dual polymer system.
  15. Barrows William D. (Manchester MD) Crouse George H. (Westminster MD) Morton John F. (Westminster MD), Fibrous-reinforced sheet.
  16. Barrows William D. ; Crouse George H. ; Morton John F., Fibrous-reinforced sheet.
  17. Cutts Paul Kenneth (West Yorkshire GBX), Manufacture of paper.
  18. Mathur,Vijay K.; Mathur,Varun K., Method and apparatus for production of precipitated calcium carbonate and silicate compounds in common process equipment.
  19. Bruce A. Keiser ; James E. Whitten, Method for flocculating a papermaking furnish using colloidal borosilicates.
  20. 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.
  21. 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.
  22. Bruce A. Keiser ; James E. Whitten, Method of increasing drainage in papermaking using colloidal borosilicates.
  23. Bruce A. Keiser ; James E. Whitten, Method of increasing retention in papermaking using colloidal borosilicates.
  24. Sanchez Jordi Roque,ESX, Method of increasing the dry strength of paper products using cationic dispersion polymers.
  25. Wong Shing,Jane B.; Gerli,Alessandra; Cardoso,Xavier S.; Zagala,Angela P.; Pruszynski,Przem; Doucette,Cathy C., Method of preparing modified diallyl-N,N-disubstituted ammonium halide polymers.
  26. Begala Arthur James ; Keiser Bruce A., Method of using an anionic composite to increase retention and drainage in papermaking.
  27. Mathur, Vijay K., Multi-phase calcium silicate hydrates, methods for their preparation, and improved paper and pigment products produced therewith.
  28. Svending, Per; Phipps, Jonathan Stuart; Kritzinger, Johannes; Larson, Tom; Selina, Tania; Skuse, David, Paper and paperboard products.
  29. Husband, John Claude; Svending, Per; Skuse, David Robert; Motsi, Tafadzwa; Likitalo, Mikko; Coles, Alan, Paper filler composition.
  30. Husband, John Claude; Svending, Per; Skuse, David Robert; Motsi, Tafadzwa; Likitalo, Mikko; Coles, Alan, Paper filler composition.
  31. Husband, John Claude; Svending, Per; Skuse, David Robert; Motsi, Tafadzwa; Likitalo, Mikko; Coles, Alan, Paper filler method.
  32. Begala Arthur J. (Naperville IL), Papermaking process.
  33. Nagarajan R. ; Wong Shing Jane B., Papermaking process.
  34. Wong Shing Jane B. ; Hurlock John R. ; Maltesh Chidambaram ; Nagarajan Ramasubramanyam, Papermaking process utilizing hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide as retention and drainage aids.
  35. Wong Shing Jane B. ; Hurlock John R., Papermaking process utilizing hydrophilic dispersion polymers of dimethylaminoethyl acrylate methyl chloride quaternary and acrylamide as retention and drainage aids.
  36. Begala Arthur James ; Keiser Bruce A., Preparation of anionic nanocomposites and their use as retention and drainage aids in papermaking.
  37. Wild, Martha Patricia, Process for improving optical properties of paper.
  38. Keiser Bruce A. ; Whitten James E., Process for producing colloidal borosilicates.
  39. Wong Shing, Jane B.; Chen, Zhi; MacDonald, Dennis; Doles, Ronald S.; Bai, Wen; Miller, Jr., Raymond D., Process for producing high solids colloidal silica.
  40. Fr��lich,Sten; Solhage,Fredrik; Lindgren,Erik; Johansson Vestin,Hans E., Process for production of paper.
  41. Lindgren, Erik; Frölich, Sten; Persson, Michael; Magnusson, Barbro, Process for sizing paper.
  42. Lindgren, Erik; Fr?lich, Sten; Persson, Michael, Process for sizing paper.
  43. Lindgren,Erik; Fr��lich,Sten; Persson,Michael; Magnusson,Barbro, Process for sizing paper.
  44. Gane, Patrick A. C.; Schenker, Michel; Subramanian, Ramjee; Schoelkopf, Joachim, Process for the manufacture of structured materials using nano-fibrillar cellulose gels.
  45. Gane, Patrick A.C.; Schenker, Michel; Subramanian, Ramjee; Scholkopf, Joachim, Process for the manufacture of structured materials using nano-fibrillar cellulose gels.
  46. Fr?lich, Sten; Solhage, Fredrik; Lindgren, Erik; Johansson-Vestin, Hans E., Process for the production of paper.
  47. H채llstr철m,Hans; Sikkar,Rein; Struck,Oliver, Process for the production of paper.
  48. Klemets,Bore; Hallstrom,Hans; Asplund,Anna; Sikkar,Rein, Process for the production of paper.
  49. Heard Michael ; Chen Gordon ; Stockwell John Oliver,GBX, Processes of making paper.
  50. Batllo, Francois; Holland, Brian T.; Krasniewski, John M.; Long, Kim M.; Romba, Michael A.; Welz, Sascha; Workman, David P., Production and use of polysilicate particulate materials.
  51. Harrington, John C.; Hollomon, Martha G., Retention and drainage aids.
  52. Gill, Jasbir S.; Chen, Tzu Y.; Faith, Reagan; Coulterman, Adam, Rheology modifying agents for slurries.
  53. Gill, Jasbir; Chen, Tzu Y; Faith, Reagan; Coulterman, Adam, Rheology modifying agents for slurries.
  54. Keiser Bruce A. ; Whitten James E., Use of colloidal borosilicates in the production of paper.
  55. Shing Jane B. Wong ; Maltesh Chidambaram ; Nagarajan Ramasubramanyam, Use of diallyldimethylammonium chloride acrylamide dispersion copolymer in a papermaking process.
  56. Chengara, Anoop; Montag, Jordan, Use of emulsion polymers to flocculate solids in organic liquids.
  57. Castro, David A.; Karnati, Rangarani; Wilson, Shawnee M.; Cheng, Weiguo; Liu, Mei; Zhang, Zhiyi, Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process.
  58. Castro, David A.; Karnati, Rangarani; Wilson, Shawnee M.; Cheng, Weiguo; Liu, Mei; Zhang, Zhiyi, Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process.
  59. Castro, David J.; Karnati, Rangarani; Wilson, Shawnee M.; Cheng, Weiguo; Liu, Mei; Zhang, Zhiyi, Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process.
  60. Castro, David J.; Karnati, Rangarani; Wilson, Shawnee M.; Cheng, Weiguo; Liu, Mei; Zhang, Zhiyi, Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention, wet strength, and dry strength in papermaking process.
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