[특허]Method for imparting strength to paper

Method for imparting strength to paper 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	D21H-021/20
출원번호	US-0634431 (1996-04-18)
발명자 / 주소	Underwood Richard T.
출원인 / 주소	Callaway Corporation
대리인 / 주소	Jacobs
인용정보	피인용 횟수 : 27 인용 특허 : 2

초록 ▼

A method for imparting dry strength to paper by adding to a pulp slurry during a paper-making process a mixed resin solution containing (i) an aminopolyamide-epichlorohydrin resin and (ii) a glyoxylated acrylamide-dimethyl diallyl ammonium chloride resin, in combination with (iii) a high charge dens

대표청구항 ▼

[ What is claimed is:] [1.] A method for imparting strength to paper comprising the step of adding to a pulp slurry during a paper-making process (1) a pre-mixed resin solution comprising (i) a thermosetting aminopolyamide-epichlorohydrin resin, and (ii) a glyoxylated acrylamide-diallyldimethyl ammonium chloride resin, respectively, and (2) a non-thermosetting high charge density cationic resin having a cationic charge density of at least about 2.5 meg/g; wherein the pre-mixture and the non-thermosetting high charge density cationic resin are added to the wet end of a paper machine in amounts that are sufficient to impart dry strength to paper produced by the paper machine, wherein the aminopolyamide-epichlorohydrin resin and the glyoxylated acrylamide-diallyldimethyl ammonium chloride resin are present at a weight ratio of about 1:1 to about 5:1, and the high charge density cationic polymer is present in an amount of about 20 to 100% of the total weight of the aminopolyamide-epichlorohydrin resin and the glyoxylated acrylamide-diallyldimethyl ammonium chloride resin.

이 특허에 인용된 특허 (2)

Darlington William B. (Chillicothe OH) Lanier William G. (Marietta GA), Repulpable wet strength paper.
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Devore David I. (Langhorne PA) Clungeon Nancy (Wyndmoor PA) Fischer Stephen A. (Yardley PA), Wet strength resin composition.
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이 특허를 인용한 특허 (27)

Cheng, Weiguo; Broadus, Katherine M; Smoron, Dorota; Wilson, Shawnee M, Anionic preflocculation of fillers used in papermaking.
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Iengo, Paolo; Padigala, Mahesh; Gavezotti, Piero, Aqueous compositions containing perfluoropolyether di-carboxylic salts for the oleo-repellent paper treatment.
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Hagiopol, Cornel; Luo, Yuping; Townsend, David F.; Johnston, James W.; Ringold, Clay E.; Favors, Karla D., Blends of glyoxalated polyacrylamides and paper strengthening agents.
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Hagiopol,Cornel; Luo,Yuping; Townsend,David F.; Johnston,James W.; Ringold,Clay E.; Favors,Karla D., Blends of glyoxalated polyacrylamides and paper strengthening agents.
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Lu, Chen; Rosencrance, Scott; Grigoriev, Vladimir, Compositions and methods of making paper products.
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McKay, Jonathan M., Enhanced dry strength and drainage performance by combining glyoxalated acrylamide-containing polymers with cationic aqueous dispersion polymers.
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Singh, Michael; Herren, Fritz; Northfleet, Christina; Cockcroft, Robert; Symes, Kenneth; Donnelly, Simon; McCann, Andrew; Reynolds, Valerie, Fine particle size lime slurries and their production.
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Zhao, Yulin; Li, Jun; Long Rao, Qing; Cheng, Weiguo, Furnish pretreatment to improve paper strength aid performance in papermaking.
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Zhao, Yulin; Li, Jun; Rao, Qing Long; Cheng, Weiguo, Furnish pretreatment to improve paper strength aid performance in papermaking.
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Hagiopol, Cornel; Luo, Yuping; Townsend, David F.; Ringold, Clay E.; Favors, Karla D., Glyoxalated inter-copolymers with high and adjustable charge density.
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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.
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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.
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Proverb, Robert J.; Scanlon, Michael J., Methods for reducing amine odor in paper.
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Robert J. Proverb ; Michael J. Scanlon, Methods for reducing amine odor in paper.
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Zhu, Bo; Xu, Na; Zhang, Meng; Zhao, Yulin, Paper-making aid composition and process for increasing ash retention of finished paper.
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Hagiopol, Cornel; Luo, Yuping; Townsend, David F.; Johnston, James W., Polyacrylamide-based strengthening agent.
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Zhu, Bo; Zhang, Meng; Li, Jun; Xu, Na; Zhao, Yulin, Process and compositions for paper-making.
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Shannon, Thomas G.; Garnier, Gil Bernard Didier; Negri, Alberto Ricardo; Goulet, Mike T., Process for bonding chemical additives on to substrates containing cellulosic materials and products thereof.
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Shannon, Thomas Gerard; Goulet, Mike Thomas; Kass, Dana Stephanie, Process for incorporating poorly substantive paper modifying agents into a paper sheet via wet end addition.
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Shannon, Thomas Gerard; Goulet, Mike Thomas; Kass, Dana Stephanie, Process for incorporating poorly substantive paper modifying agents into a paper sheet via wet end addition.
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Cooper Anthony B ; Underwood Richard T. ; Monteith Geoffrey A. ; Wright Michael D., Process for preparing a dyed textile fabric wherein the dyed fabric is coated with a mixture of resins.
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Klemets,Bore; Hallstrom,Hans; Asplund,Anna; Sikkar,Rein, Process for the production of paper.
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Cyr, Shane; Bakker, Henk; Stevels, Willem Marinus; Staib, Ronald Richard, Reactive cationic resins for use as dry and wet strength agents in sulfite ion-containing papermaking systems.
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Spence Gavin G. ; Palmateer Duane R. ; Yarnell James R., Retention and drainage in alkaline fine paper.
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Garnier, Gil Bernard Didier; Lostocco, Michael Ralph; Runge, Troy Michael; Schulz, Thomas Hampshire, Soft and durable tissue products containing a softening agent.
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Gorzynski, Marek; Biermann, Christian; Macherey, Heribert J.; Andersson, Arne, Wet strength agent and method for production thereof.
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Krueger, Ellen; Wendker, Martin; Frenzel, Stefan; Boettcher, Claus, Wet strength enhancers for paper.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Method for imparting strength to paper 원문보기