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22.发明授权METHOD FOR PRETREATMENT OF FILLER, MODIFIED FILLER WITH A HYDROPHOBIC POLYMER AND USE OF THE HYDROPHOBIC POLYMER 有权有疏水性聚合物和疏水性聚合物的使用方法制备填料，改性填料
公开(公告)号：EP1276931B1
公开(公告)日：2009-12-02
申请号：EP01929673.0
申请日：2001-04-17
申请人： BASF SE
CPC分类号： D21H21/16 , C09C1/021 , C09C3/10 , D21H17/29 , D21H17/35 , D21H17/37 , D21H17/69 , Y10T428/2991 , Y10T428/2998
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公开(公告)号：EP2118369A1
公开(公告)日：2009-11-18
申请号：EP08708057.8
申请日：2008-01-22
申请人： BASF SE
发明人： Reinicke, Holger
摘要： A process of making paper or paperboard with improved ashretention relative to totalretention comprising the steps of providing a thick stock cellulosic suspension that contains filler, diluting the thick stock suspension to form a thin stock suspension, in which the filler is present in the thin stock suspension in an amount of at least 10% by weight based on dry weight of thin stock suspension, flocculating the thick stock suspension and/or the thin stock using a polymeric retention/drainage system, draining the thin stock suspension on a screen to form a sheet and then drying the sheet, in which the polymeric retention/drainage system comprises, i) a water-soluble branched anionic polymer and ii) a water-soluble cationic or amphoteric polymer, wherein the anionic polymer is present in the thick stock or thin stock suspension prior to the addition of the cationic or amphoteric polymer. The process brings about improved ash retention relative to total retention.
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公开(公告)号：EP1659220A3
公开(公告)日：2009-04-08
申请号：EP05026182.5
申请日：2000-04-12
发明人： Lin, Tingdong
CPC分类号： D21H17/74 , D21H17/16 , D21H17/17 , D21H17/23 , D21H17/24 , D21H17/29 , D21H17/66 , D21H21/16
摘要： Paper sizing composition comprising (a) cellulose-reactive size, (b) dispersant system comprising primary anionic dispersant, and secondary dispersant selected from cationic and/or non-ionic dispersant, and (c) inorganic salt.
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公开(公告)号：EP1977040A2
公开(公告)日：2008-10-08
申请号：EP07716938.1
申请日：2007-01-24
摘要： A method of making paper or paperboard is described, which includes introducing at least one charged starch, preferably having a degree of substitution greater than 0.045, and at least one optical brightening agent to a papermaking pulp and then forming the pulp into paper or paperboard. The present invention further describes methods of improving optical brightener performance.
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公开(公告)号：EP1902071A1
公开(公告)日：2008-03-26
申请号：EP06763862.7
申请日：2006-06-23
申请人： BASF SE
发明人： STEIN, Hildegard , ETTL, Roland
摘要： The invention relates to fine-particled polymer dispersions which contain starch and which are obtained by emulsion copolymerisation with redox initiators of ethylenically unsaturated monomers from the group containing (a) 45 - 55 wt. % of at least one, optionally substituted, styrene, methacrylic acid methylester, acrylonitrile and/or methacrylonitrile, (b) 15 - 29 wt.- % of at least one acrylic acid-C1-C12-alkyl ester and/or a methacrylic acid-C2-C12-alkyl ester and, (c) 0 - 10 wt.- % of at least one other ethylenically unsaturated copolymerisable monomer, in an aqueous medium in the presence of (d) 15 - 35 wt. % of a degraded cationised starch, which has a molar mass Mw of between 1000 - 65 000. The total (a) + (b) + (c) + (d) = 100 % and refers to the total content of solid material. The invention also relates to a method for producing said type of polymer dispersions by means of emulsion polymerisation of the monomers (a), (b) and (c) in an aqueous medium with redox initiators in the presence of (d) cationic starch and to the use of polymer dispersions containing starch as resizing agents for paper, pulp and cardboard.
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27.发明公开
公开(公告)号：EP1885954A1
公开(公告)日：2008-02-13
申请号：EP06755166.3
申请日：2006-05-11
申请人： STORA ENSO AB
IPC分类号： D21H17/00
摘要： A process for producing paper from a furnish comprising fillers and fibers, wherein the furnish is treated with polymers in at least three steps and said furnish contains fillers in such an amount that the paper product obtained by the process contains at least 15% by weight of fillers. The invention also relates to a paper product produced according to the process of the present invention.
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28.发明公开
公开(公告)号：EP1882012A1
公开(公告)日：2008-01-30
申请号：EP06759915.9
申请日：2006-05-16
CPC分类号： C08B31/003 , C08L3/04 , C09D103/04 , D21H17/28 , D21H17/29 , D21H19/54 , C08L2666/26
摘要： There is disclosed a cationic crosslinked starch composition comprising at least one cationic crosslinked waxy starch and another starch. There is also disclosed paper products comprising the starch composition. The paper products are generally characterized by having improved internal bond strength. The use of the starch blends in the papermaking process results generally in improved paper furnish drainage and retention properties. Also disclosed are coating formulations containing the starch compositions of the present disclosure. Also disclosed are processes for producing the compositions.
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公开(公告)号：EP1882011A1
公开(公告)日：2008-01-30
申请号：EP06759913.4
申请日：2006-05-16
CPC分类号： D21H17/29 , C08L3/04 , D21H17/06 , D21H17/33 , D21H17/67 , D21H19/54 , C08L2666/02 , C08L2666/26
摘要： There is disclosed a composition comprising at least one cationic crosslinked starch and an organic or inorganic component or a mixture thereof. Included within the organic compounds are any functionalized organic compound such as a polymerizable organic compound, a non-polymerizable organic compound, an organic polymer, or a mixture thereof. Included within the inorganic components are inorganic metals, or inorganic compounds. The compositions are suitable for various applications such as cellulosic products, coatings, paints, and the like. Also disclosed are processes for producing the compositions.
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公开(公告)号：EP1448699B1
公开(公告)日：2007-08-29
申请号：EP02784528.8
申请日：2002-11-13
CPC分类号： D21H21/10 , C08B31/00 , C08L3/00 , C08L3/02 , C08L3/04 , C08L3/08 , D21H17/29 , D21H17/375 , C08L2666/02
摘要： A process that can be used for producing a starch product is provided. The process comprises heating a composition, which comprises or consists essentially of a starch, a polyacrylamide, and a multivalent cation. The weight ratio of starch to polyacrylamide is greater than about 2 to 1. The process can also comprise heating a composition, which comprises or consists essentially of a starch and a polyacrylamide to produce a heated composition followed by contacting the heated composition with a multivalent cation. The heating can be carried out at a pH above 7.0 if the polyacrylamide is a cationic polyacrylamide or nonionic polyacrylamide and, if the starch is a cationic starch and the polyacrylamide is an amphoteric polyacrylamide or anionic polyacrylamide, the heating neutralizes less than 75% of the cationic starch.
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