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Hydrophilic polyurethanes of improved strength 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C08G-018/30
  • A61F-002/14
  • A61F-013/15
출원번호 US-0561240 (1990-07-24)
발명자 / 주소
  • Gould Francis E. (Princeton NJ) Johnston Christian W. (Neschanic Station NJ)
출원인 / 주소
  • Tyndale Plains-Hunter Ltd. (Princeton NJ 02)
인용정보 피인용 횟수 : 69  인용 특허 : 0

초록

The strength and integrity of hydrophilic polyurethane resins prepared by reacting a diol component, an organic chain extender and an organic diisocyanate are improved by critical selection of the diol component, the amount of water in the reaction mixture and the mole rations of the reactants. The

대표청구항

A substantially noncovalently crosslinked hydrophilic, substantially nonfoaming polyurethane resin having improved tear strength and a urea content of from about 13.6 to 33.7 weight percent, consisting essentially of the reaction product of a mixture of: A. a diol component selected from at least on

이 특허를 인용한 특허 (69)

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