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특허 상세정보

Absorbent articles made from carboxylic polyelectrolyte solutions containing bis-oxazoline crosslinker and methods for t

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08F-020/06   
미국특허분류(USC) 260/296 ; N ; 260/296 ; TA ; 260/334 ; R ; 260/296 ; HN
출원번호 US-0494440 (1974-08-05)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 21  인용 특허 : 0

Water swellable absorbent articles, made from polyelectrolytes, containing free carboxylic groups, together with methods for their preparation, and a composition useful to make said articles are disclosed. The composition contains bis-oxazolines or bis imino oxazolidines. The articles are crosslinked by heating and/or removing substantially all of the water from the precursor composition. The absorbent articles are useful as surgical sponges, diapers, tampons, meat trays, bath mats and the like.


A solution useful to form water swellable articles of a carboxylic synthetic polyelectrolyte which comprises 1. a solvent consisting of water, or a mixture thereof with lower alcohols, 2. about 5 to about 60% by weight based on the amount of solvent of a carboxylic polyelectrolyte or mixtures thereof having free carboxylic acid groups, and 3. 0.05 to 5.0% by weight based on the polyelectrolyte of a bis-oxazoline or bis-imino-oxazolidino crosslinking agent reactive with carboxylic acid groups.

이 특허를 인용한 특허 피인용횟수: 21

  1. Gillberg-LaForce Gunilla Elsa ; Gadsby Elizabeth Deibler. Coating of a hydrophobic polymer substrate with a nonstoichiometric polyelectrolyte complex. USP2000056060410.
  2. Dorman Linneaus C. (Midland MI) Meyer Victor E. (Midland MI). Cyclic iminoether modified copolymers as improved adhesives. USP1986084608419.
  3. Donoho, Christopher D.. Disposable diaper with pouches. USP2012108292863.
  4. Le-Khac Bi (West Chester PA). Extended shelf life water-absorbing composition which facilitates fiber formation. USP1989114880868.
  5. Dorman Linneaus C. (Midland MI) Meyer Victor E. (Midland MI) Wu Marinda L. (San Ramon CA). Gas separation membranes from polymers containing a hydrocarbon backbone and pendant (hydrocarbylamido)alkyl ester moiet. USP1987094695295.
  6. Graham Neil B. (Bearsden GB2). Hydrogels. USP1984034438258.
  7. Graham Neil B. (Bearsden GB6). Hydrogels. USP1985074528365.
  8. Graham Neil B. (Bearsden GB6). Hydrogels. USP1986044584188.
  9. Dabi Shmuel (Highland Park NJ) Vassallo Jayson C. (Emmaus PA). In situ crosslinking of polyelectrolytes. USP1990074944963.
  10. Goel, Anil B.. Maleic anhydride/styrene copolymerization controlled with oxazolines. USP1985114551511.
  11. Makita Muneharu (Takatsuki JPX) Tanioku Shozo (Nara JPX). Method for producing improved water-absorbent resins. USP1986054587308.
  12. Riegel, Ulrich; Weismantel, Matthias; Frenz, Volker; Daniel, Thomas; Engelhardt, Fritz. Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines. USP2003126657015.
  13. Riegel, Ulrich; Weismantel, Matthias; Frenz, Volker; Daniel, Thomas; Engelhardt, Fritz. Method for the secondary cross-linking of hydrogels with N-acyl-2-oxazolidinones. USP2003056559239.
  14. Le-Khac Bi (West Chester PA). Polymer compositions and absorbent fibers produced therefrom. USP1991065026784.
  15. Herman Daniel F. (Princeton NJ) Kruse Uno (East Windsor NJ). Polymeric polyelectrolytes. USP1982084342858.
  16. Goel Anil B. (Worthington OH). Pressure sensitive adhesives. USP1986124626575.
  17. Rudiger Funk DE; Volker Frenz DE; Ulrich Riegel DE; Matthias Weismantel DE; Fritz Engelhardt ; Thomas Daniel. Process for crosslinking hydrogels with bis- and poly-2- oxazolidinones. USP2002106472478.
  18. Culbertson, Bill M.; Schricker, Scott R.. Synthesis of free racdical or visible light curable acid containing polymers. USP2003016512054.
  19. Barthell Eduard (Krefeld DEX) Schmid Otto (Krefeld DEX). Thickening urinary and intestinal tract excrement. USP1979124179367.
  20. Le-Khac Bi (Chester PA). Ultrahigh water-absorbing fiber forming composition. USP1989034813945.
  21. Le-Khac Bi (West Chester PA). Ultrahigh water-absorbing fiber-forming composition. USP1990014892533.