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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Fibers and pulps for papermaking based on chemical combination of poly (acrylate-co-itaconate), polyol and cellulosic fi

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) D21H-011/20   
미국특허분류(USC) 162/9 ; 162/1576 ; 162/182
출원번호 US-0432306 (1995-05-01)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 74  인용 특허 : 27
초록
▼

Disclosed is a fiber comprising, chemically bonded together, (a) a conventional cellulosic fiber, such as a Kraft fiber or a chemithermomechanical pulp fiber; (b) poly(acrylate-co-itaconate) copolymer, such as the acid form of a poly(acrylate-co-itaconate) copolymer comprising 90-95 mole % acrylate and 5-10 mole % itaconate having weight average molecular weight of about 600,000-900,000; and (c) a polyol, such as polyethylene glycol; also disclosed are methods for making such fibers, especially evaporatively depositing an intimate mixture of the copolyme...

대표
청구항
▼

A process for preparing a chemically modified fiber having a water absorbency and retention value in the range from 15 g/g to about 130 g/g comprising a step of: thermally crosslinking, at a curing temperature of from about 100°C. to about 150°C. for a curing time of from about 60 minutes to about 2 minutes, (a) a starting-material pulp consisting essentially of cellulosic fiber selected from the group consisting of chemithermomechanical pulp fiber, bleached hardwood Kraft pulp fiber, bleached softwood Kraft pulp fiber, unbleached hardwood Kraft pulp fib...

이 특허에 인용된 특허 (27)

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  6. Parks Lawrence R. (Cincinnati OH). Cross-linked sodium polyacrylate absorbent. USP1981104295987.
  7. Trokhan Paul D. (Hamilton OH). Extensible multi-ply tissue paper product. USP1984094469735.
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