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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) D21H-017/63    D21H-021/10    D21H-021/18    D21H-021/20    D21H-017/69    D21H-017/00    D21C-003/02    D21C-005/00    D21C-005/02    D21H-017/67   
출원번호 US-0919167 (2013-06-17)
등록번호 US-9487916 (2016-11-08)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Babych, Eric D.
인용정보 피인용 횟수 : 3  인용 특허 : 90
초록
▼

The invention provides a method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in a papermaking process The method improves the efficiency of drainage aids or wet web strength aids or wet strength aid by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a those additives. The drainage additive or wet web strength additive or wet strength aid holds the cellulose fibers together tightly and is not wasted on th...

대표
청구항
▼

1. A method of papermaking, the method comprising the steps of: treating filler particles in a container with a composition of matter in the absence of cellulose fiber stock bycontacting the filler particles with a rotating admixing apparatus having a distribution head rotating at a rotational speed of 1800 to 3000 rpm while the filler particles are in the container,combining the treated filler particles with the cellulose fiber stock thereby forming a combination,treating the combination with at least one wet strength aid or wet web strength additive or...

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이 특허를 인용한 특허 피인용횟수: 3

  1. Hay, Daniel N. T.. Composition for dust control and improved material handling. USP20180710029953.
  2. Zhao, Yulin; Li, Jun; Rao, Qing Long; Ashton, Stephen; Cheng, Weiguo; Todorovic, Aleksandar; Smith, Alan. Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking. USP20181210145067.
  3. Huh, Seung-Nyung; Huh, Jin Nyung. Mixing apparatus for crushing sludge. USP20190310227249.

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