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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-017/37    D21H-021/20    D21H-021/18    D21H-017/67    D21H-021/10    D21C-003/02    D21C-005/00    D21C-005/02    D21H-017/69    D21H-017/00    D21H-017/66   
출원번호 US-0271441 (2016-09-21)
등록번호 US-10145067 (2018-12-04)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Babych, Eric D.
인용정보 피인용 횟수 : 0  인용 특허 : 192
초록

Methods of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength, and enhancing filler retention in a papermaking process are disclosed. The methods improve the efficiency of drainage aids, wet web strength aids, and/or wet strength aids by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a those additives.

대표
청구항
▼

1. A method of papermaking, comprising: treating filler particles in a container with a composition of matter, in the absence of a cellulose fiber stock, by contacting the filler particles in the container with a rotating admixing apparatus having a distribution head rotating at a rotational speed of 1800 to 3000 rpm while the filler particles and the composition of matter are in the container, wherein the filler particles are selected from precipitated calcium carbonate, ground calcium carbonate, an organic pigment, an inorganic pigment, clay, talc, tit...

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