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公开(公告)号：US3507743A
公开(公告)日：1970-04-21
申请号：US3507743D
申请日：1965-02-23
Applicant: FMC CORP
Inventor： CARTSUNIS LOUIS P , KINDRON ROBERT R
CPC classification number: D21C9/1036
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公开(公告)号：US875315A
公开(公告)日：1907-12-31
申请号：US1907362160
申请日：1907-03-13
Applicant: BOEHM LUDWIG KARL
Inventor： BOEHM LUDWIG KARL
CPC classification number: D21C9/1036
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公开(公告)号：US828813A
公开(公告)日：1906-08-14
申请号：US1905287901
申请日：1905-11-17
Applicant: COLAHAN CHARLES
Inventor： COLAHAN CHARLES
CPC classification number: D21C9/1036
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Patent Agency Ranking
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公开(公告)号：US09926666B2
公开(公告)日：2018-03-27
申请号：US15423177
申请日：2017-02-02
Applicant: GP Cellulose GmbH
Inventor： Arthur J. Nonni , Charles E. Courchene , Christopher Michael Slone , Peter R. Abitz
CPC classification number: D21C9/163 , A61F13/53 , D21C9/002 , D21C9/1036 , D21C9/144 , D21H11/04 , D21H11/16 , D21H11/20 , Y10T428/298
Abstract: A modified kraft pulp fiber with unique properties is provided. The modified fiber can be a modified bleached kraft fiber that is almost indistinguishable from its conventional counterpart, except that it has a low degree of polymerization (DP). Methods for making the modified fiber and products made from it are also provided. The method can be a one step acidic, iron catalyzed peroxide treatment process that can be incorporated into a single stage of a multi-stage bleaching process. The products can be chemical cellulose feedstocks, microcrystalline cellulose feedstocks, fluff pulps and products made from them.
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公开(公告)号：US09777432B2
公开(公告)日：2017-10-03
申请号：US14293773
申请日：2014-06-02
Applicant: GP Cellulose GmbH
Inventor： Arthur J. Nonni , Charles E. Courchene , Christopher Michael Slone , Peter R. Abitz
CPC classification number: D21C9/163 , A61F13/53 , D21C9/002 , D21C9/1036 , D21C9/144 , D21H11/04 , D21H11/16 , D21H11/20 , Y10T428/298
Abstract: A modified kraft pulp fiber with unique properties is provided. The modified fiber can be a modified bleached kraft fiber that is almost indistinguishable from its conventional counterpart, except that it has a low degree of polymerization (DP). Methods for making the modified fiber and products made from it are also provided. The method can be a one step acidic, iron catalyzed peroxide treatment process that can be incorporated into a single stage of a multi-stage bleaching process. The products can be chemical cellulose feedstocks, microcrystalline cellulose feedstocks, fluff pulps and products made from them.
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公开(公告)号：US20170268171A1
公开(公告)日：2017-09-21
申请号：US15459303
申请日：2017-03-15
Applicant: Ecolab USA Inc.
Inventor： Prasad Y. Duggirala , Sergey M. Shevchenko
CPC classification number: D21C9/1078 , D21C9/02 , D21C9/1036 , D21C9/14 , D21C9/144 , D21C9/163
Abstract: Bleaching methods and formulations for bleaching/delignification processes for chemical pulp are provided. The bleaching methods utilize peroxide and an organomanganese complex under aqueous caustic conditions, increasing bleaching efficiency of the overall bleaching/delignification process. Chemical pulp having increased brightness can be obtained at decreased temperatures and with reduced stage time, resulting in reduced chemical consumption and improved energy efficiency.
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公开(公告)号：US09540767B2
公开(公告)日：2017-01-10
申请号：US14390051
申请日：2013-04-03
Applicant: Kemira Oyj , Andritz Oy , UPM-Kymmene Corporation , Stora Enso Oyj , Metsä Fibre Oy
Inventor： Tapani Vuorinen , Anna-Stiina Jääskeläinen , Andreas Lindberg
CPC classification number: D21C9/12 , D21C9/1036 , D21C9/14 , D21C9/144 , D21H17/07 , D21H17/66 , D21H17/74 , D21H21/32
Abstract: A method for bleaching pulp is provided. In the method at least one tertiary amine compound is introduced into a process stage of bleaching. This process stage is a stage which comprises mixing pulp and a chlorine compound capable of bleaching.
Abstract translation: 提供了一种漂白纸浆的方法。 在该方法中，将至少一种叔胺化合物引入漂白的工艺阶段。 该工艺阶段是包括混合纸浆和能够漂白的氯化合物的阶段。
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