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Charged organic polymer microbeads in paper making process 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • D21H-017/03
출원번호 US-0540667 (1990-06-18)
발명자 / 주소
  • Honig Dan S. (New Canaan CT) Harris Elieth (Bridgeport CT)
출원인 / 주소
  • American Cyanamid Company (Stamford CT 02)
인용정보 피인용 횟수 : 61  인용 특허 : 0

초록 ▼

In a papermaking process, improved drainage and retention are obtained when ionic, organic microbeads of less than about 1,000 nm in diameter if crosslinked or less about than 60 nm in diameter if noncrosslinked are added either alone or in combination with a high molecular weight organic polymer, a

대표청구항 ▼

A method of making paper which comprises adding to an aqueous paper furnish from about 0.05 to about 20 lbs/ton, based on the dry weight of paper furnish solids, of an ionic, organic, cross-linked polymeric microbead, the microbead having an unswollen particle diameter of less than about 750 nanomet

이 특허를 인용한 특허 (61)

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