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Cationic hydrogels based on heterocyclic N-vinyl monomers

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C08F-220/20
  • C08F-026/00
출원번호 US-0549097 (1975-02-11)
발명자 / 주소
  • Steckler Robert (San Diego CA)
출원인 / 주소
  • Plastomedical Sciences, Inc. (Briarcliff Manor NY 02)
인용정보 피인용 횟수 : 28  인용 특허 : 0

초록

Novel cationic hydrogels, containing basic (cationic) groups in their molecular structure, and processes for their preparation are described. These novel hydrogels are stable, three-dimensional polymer networks, having good water permeability and mechanical properties. They are obtained by simultane

대표청구항

The cationic, polymeric hydrogel produced by simultaneus polymerization and cross-linking in the presence of a free radical polymerization catalyst in an amount of from about 0.05 to about 4 weight percent, based on the total weight of monomers, and at a temperature of from about 20°C. to about 125°

이 특허를 인용한 특허 (28)

  1. Isabelle Descheres FR; Gilbert Boulon FR, Acrylamide and trialkylammonium salt copolymer, method for obtaining same and coated textile.
  2. Lahalih Shawqui (Safat KWX) Hovakeemian George (Safat KWX), Anionic polymer hydrogels and a process for making the same.
  3. Inoue Tetsuya,JPX, Aqueous dispersion of cationic fine grain gel and process for preparing the same.
  4. Thomas, Brian; Yakimicki, Donald; Hudgins, Robert Garryl, Blend hydrogels and methods of making.
  5. Garcia Castro, Ivette; Kim, Son Nguyen; Jahnel, Wolfgang; Laubender, Matthias; Werner, Rolf, Cationic polymers as thickeners for aqueous and alcoholic compositions.
  6. Thomas, Brian H.; Yakimicki, Donald L.; Charlebois, Steven; Borgstede, Laura L.; Abt, Niels; Mason, James J.; Popoola, Oludele, Chemical composition of hydrogels for use as articulating surfaces.
  7. Dieing, Reinhold; Hossel, Peter; Kothrade, Stephan; Sanner, Axel; Zeitz, Katrin; Raubenheimer, Hans-Jurgen; Schehlmann, Volker, High molecular weight mass cationic copolymers.
  8. Meier, Nicole; Castro, Ivette Garcia; Wood, Claudia; Staub, Jessica, Highly cationic copolymers based on quaternized nitrogen-containing monomers.
  9. Liu, Kaifeng; Thomas, Brian; Charlebois, Steven, Hydrogels with gradient.
  10. Loshaek Samuel (Chicago IL) Shen Chah M. (Chicago IL), Hydrophilic polymers and contact lenses of high water content.
  11. Gilles Jack C. (Shaker Heights OH), Hydroxyl-containing liquid polymers and pressure-sensitive adhesives prepared therefrom.
  12. Nacht Sergio ; Won Richard ; Katz Martin A. ; Cheng Tai ; Liau Christine J.Y. ; Eury Robert P. ; Froix Michael, Ionic beads useful for controlled release and adsorption.
  13. Thomas, Brian; Zhang, Kai; Hudgins, Garryl; Hodorek, Robert, Methods of bonding or modifying hydrogels using irradiation.
  14. Hawkins, Michael E.; Pletcher, Dirk L.; Thomas, Brian; Zhang, Kai; Brinkerhuff, Hallie E., Methods of preparing hydrogel coatings.
  15. Pera Ivo E. (Pisa ITX), Modification of permeant.
  16. Thomas, Brian; Zhang, Kai, Multi-polymer hydrogels.
  17. Thomas, Brian; Zhang, Kai, Multi-polymer hydrogels.
  18. Muratoglu, Orhun K.; Spiegelberg, Stephen H.; Ruberti, Jeffrey W.; Abt, Niels A., PVA hydrogel.
  19. Takahashi, Ryuji; Suzuki, Hiroshi, Packing material for solid phase extraction and solid phase extraction method.
  20. Thomas, Brian; Zhang, Kai, Perfluorocyclobutane crosslinked hydrogels.
  21. Hedrick, James L.; Venkataraman, Shrinivas; Yang, Yi Yan, Polycarbonates bearing pendant primary amines for medical applications.
  22. Denzinger, Walter; Goertz, Hans-Helmut; Sanner, Axel; Hartmann, Heinrich, Preparation of insoluble, only slightly swellable polymers of basic vinyl-heterocyclic compounds.
  23. Asmus Robert A. (Hudson WI) Duan Daniel C. (St. Paul MN), Pressure-sensitive medical sealant.
  24. Machi Sueo (Takasaki JPX) Ishigaki Isao (Meabashi JPX) Okada Toshimi (Kakogawa JPX) Washio Shigeaki (Kobe JPX), Radiation polymerization of cationic monomer in aqueous alcohol.
  25. Beck Terri A. (Cincinnati OH) Bolich ; Jr. Raymond E. (Maineville OH), Reduced stinging antiperspirant compositions.
  26. Khanna Satish C. (Bottmingen CHX), Resinate of a substituted carboxylic acid, the preparation and use thereof, and pharmaceutical compositions containing i.
  27. Sakamoto, Izumi; Takagi, Kunihiko, Urethral catheter capable of preventing urinary tract infection and process for producing the same.
  28. H��ssel,Peter; Tiefensee,Kristin; Sanner,Axel; Dieing,Reinhold; Gotsche,Michael; Zeitz,Katrin, Use of crosslinked cationic polymers in skin cosmetic and dermatological preparations.
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