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Gels formed by the interaction of polyvinylpyrrolidone with chitosan derivatives 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C08G-063/48
  • C08G-063/91
출원번호 US-0181625 (1994-01-13)
발명자 / 주소
  • Lorenz Donald H. (Basking Ridge NJ) Lee Connie C. (New Hope PA)
출원인 / 주소
  • Hydromer, Inc. (Whitehouse NJ 02)
인용정보 피인용 횟수 : 63  인용 특허 : 0

초록

A composition includes a stable gel of neutralized chitosan and poly(N-vinyl lactam), the poly(N-vinyl lactam) having a K value of at least about 60 and mole equivalents of acid groups above about 1.4 from ring-opened pyrrolidones. The composition may also include a substrate and various additives i

대표청구항

A dermatologically-compatible composition comprising a hydrophilic gel which comprises a blend of a neutralized chitosan and a hydrophilic poly(N-vinyl lactam) having a K value of at least 60 and above 1.4 mole equivalents of available acid groups.

이 특허를 인용한 특허 (63)

  1. McCarthy, Simon; McGrath, Barbara; Winata, Ervelyn, Absorbable tissue dressing assemblies, systems, and methods formed from hydrophilic polymer sponge structures such as chitosan.
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  16. Son, Young-Sook; Youn, Yong-Ha; Hong, Seok-Il; Lee, Seung-Hoon; Gin, Yong-Jae; Han, Kyu-Bo; Kim, Chun-Ho, Dermal scaffold using alkaline pre-treated chitosan matrix or alkaline pre-treated chitosan and alkaline pre-treated collagen mixed matrix.
  17. Fotinos,Spiros, Device and method for the treatment of erectile dysfunction.
  18. Cuevas, Brian J.; Sleva, Michael; Cesa, Joe; Greenhalgh, Marjory, Dilator handle.
  19. Perrault James J., Electrically conductive adhesive hydrogels.
  20. Kim Jae-Jin,KRX ; Suh Sang-Bong,KRX ; Jung Byung-Ok,KRX, Filter coated with chitosan for removal of leucocytes.
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  22. Eknoian Michael, Gels formed by the interaction of poly(aldehyde) with various substances.
  23. Micahel Eknoian, Gels formed by the interaction of poly(aldehyde) with various substances.
  24. Donald H. Lorenz ; Connie C. Lee, Gels formed by the interaction of polyvinylpyrrolidone with chitosan derivatives.
  25. Wachter Rolf,DEX ; Kahre Joerg,DEX ; Hofmann Matthias,DEX ; Heyer Michael,DEX, Hair cosmetic preparations containing cationic biopolymers.
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  27. McCarthy, Simon J., Hemostatic compositions, assemblies, systems, and methods employing particulate hemostatic agents formed from hydrophilic polymer foam such as chitosan.
  28. McCarthy, Simon J., Hemostatic compositions, assemblies, systems, and methods employing particulate hemostatic agents formed from hydrophilic polymer foam such as chitosan.
  29. Hardy, Craig; Johnson, Edwin Lee; Luksch, Paul, Hemostatic material.
  30. Sun, Benjamin J.; Lichkus, Andrew M., Hydrogel dental adhesive composition, product, system, method and dispenser.
  31. Hung, Yu-Chun; Wei, Chi-Shu; Chiu, Lien-Hua; Chiu, Wen-Yen; Wen, Chia-Jen, Hydrogel microparticle composition, application thereof and method for preparing the same.
  32. Perrault, James J.; Rouns, Cameron G., Inherently antimicrobial quaternary amine hydrogel wound dressings.
  33. Campbell, Todd D.; Wiesmann, William P.; McCarthy, Simon J., Method for preparing a compressed wound dressing.
  34. Jae-Jin Kim KR; Sang-Bong Suh KR; Byung-Ok Jung KR, Method for preparing a filter for removal of leucoclytes coated with chitosan.
  35. Kim Jae-Jin,KRX ; Suh Sang-Bong,KRX ; Jung Byung-Ok,KRX, Method for removal of leucocytes from blood.
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  37. Kritzler, Steven, Method of forming a water soluble biocidal film on a solid surface.
  38. Cuevas, Brian J.; Sleva, Michael; Cesa, Joe; Greenhalgh, Marjory, Method of performing a tracheostomy.
  39. Johnson, Royce W., Negative pressure wound therapy system with provision for introduction of an agent.
  40. Kritzler Steven,AUX, Non-woven fabric treated with a biocidal composition and a method of impregnating fabric to prevent rot.
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  54. Gregory, Kenton W.; Bente, IV, Paul F.; Bryan, Heather Margaret; Lin, Jeffrey Yihyuan; Nuguid, Aileen; Pederson, Daniel Allen, Systems and methods for hemorrhage control and or tissue repair.
  55. Gregory, Kenton W.; Dayton, Amanda, Systems and methods for introducing and applying a bandage structure within a body lumen or hollow body organ.
  56. Lewis P. Stratton ; John F. Carpenter ; Mark C. Manning, Temperature sensitive gel for sustained delivery of protein drugs.
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  58. Haimovich Beatrice (North Brunswick NJ) Freeman Amihay (Ben Shemen Youth Village ILX) Greco Ralph (Warren NJ), Thromboresistant surface treatment for biomaterials.
  59. Sagel, Paul Albert; Nguyen, Lan Ngoc; Washington, Randy Purnell, Tooth whitening product.
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  61. Nielsen,Brian, Wound care device.
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  63. Lucchesi, Lisa; Xie, Hua, Wound dressing devices and methods.
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