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公开(公告)号：EP0131923A3
公开(公告)日：1987-03-25
申请号：EP84108220
申请日：1984-07-12
Applicant: HERCULES INCORPORATED
Inventor： Dasgupta, Sunil Priya
IPC: G11B05/70
CPC classification number: G11B5/708 , Y10S428/90
Abstract: Described are coating compositions having improved antistatic properties and particularly magnetic coating compositions suitable for magnetic recording media. The compositions comprise at least one film-forming synthetic resin and, based on coating solids, from about 0.2 to about 10% of an alkali, alkaline earth, ammonium or amine salt of a perfluoroa-Ikyl sulfonic acid or carboxylic acid.
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公开(公告)号：EP0564994B1
公开(公告)日：1996-07-17
申请号：EP93105487.8
申请日：1993-04-02
Applicant: HERCULES INCORPORATED
Inventor： Dasgupta, Sunil Priya
IPC: D21H17/74
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3.发明公开Enhancement of paper dry strength by anionic and cationic guar combination 失效Verbesserung der Papiertrockenfestigkeit durch eine Kombination vom kationischen und anionischen Guar。
公开(公告)号：EP0548960A1
公开(公告)日：1993-06-30
申请号：EP92121915.0
申请日：1992-12-23
Applicant: HERCULES INCORPORATED
Inventor： Dasgupta, Sunil Priya
CPC classification number: D21H21/18 , C08G73/0293 , C08L5/14 , D21H17/32 , D21H17/375 , D21H17/455 , D21H17/55 , C08L2666/02
Abstract: A process for making paper to enhance the dry strength of the paper produced without substantially reducing its softness comprising adding to a bleached pulp furnish, separately or together, (1) a anionic polymer selected from the group consisting of carboxymethyl guar, carboxymethyl bean gum, carboxymethyl hydroxyethyl guar, and a carboxymethyl hydroxypropyl guar, with (2) a cationic polymer selected from the group consisting of a cationic guar, a cationic acrylamide copolymer, a cationic bean gum, a cationic amineepichlorohydrin wet strength resin, and both a cationic wet strength resin and at least one of the other said cationic polymers, a composition for adding to a paper-making pulp slurry comprising the said polymers, a method for making the said composition, and a paper product containing the said composition, are disclosed.
Abstract translation: 一种制造纸以提高所生产纸的干强度而不显着降低其柔软度的方法，包括分别或一起添加到漂白的纸浆配料中，（1）选自羧甲基瓜尔胶，羧甲基豆胶， 羧甲基羟乙基瓜尔胶和羧甲基羟丙基瓜尔胶，和（2）选自阳离子瓜尔胶，阳离子丙烯酰胺共聚物，阳离子豆胶，阳离子胺表氯醇湿强度树脂的阳离子聚合物和阳离子湿强度 树脂和至少一种其它所述阳离子聚合物，用于添加到包含所述聚合物的造纸浆料中的组合物，制备所述组合物的方法和含有所述组合物的纸制品。
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4.发明授权
公开(公告)号：EP0548960B1
公开(公告)日：1998-03-04
申请号：EP92121915.0
申请日：1992-12-23
Applicant: HERCULES INCORPORATED
Inventor： Dasgupta, Sunil Priya
CPC classification number: D21H21/18 , C08G73/0293 , C08L5/14 , D21H17/32 , D21H17/375 , D21H17/455 , D21H17/55 , C08L2666/02
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5.发明公开Enhancement of tissue paper softness with minimal effect on strength 失效Einfluss auf die Festigkeit。
公开(公告)号：EP0560257A1
公开(公告)日：1993-09-15
申请号：EP93103686.7
申请日：1993-03-08
Applicant: HERCULES INCORPORATED
Inventor： Dasgupta, Sunil Priya , Espy, Herbert Hastings
IPC: D21H17/26
CPC classification number: D21H17/26
Abstract: Disclosed is a process for making paper to enhance the softness of the paper produced without reducing its dry strength comprising adding a cellulosic polymeric binder resin to the pulp slurry at the wet end of a paper machine, the binder resin being a cellulosic polymer that exhibits a cloud point in aqueous solution, producing a wet paper web, and drying the web, the polymer being caused to coalesce into fine colloidal particles at a temperature above the cloud point either before or after it is added to the slurry.
Abstract translation: 公开了一种制造纸以提高纸张的柔软度而不降低干燥强度的方法，包括在造纸机的湿端向纸浆中加入纤维素聚合物粘合剂树脂，粘合剂树脂为纤维素聚合物，其表现出 在水溶液中的浊点，产生湿纸幅，并干燥纸幅，使聚合物在高于浊点的温度下在其添加到浆料之前或之后聚结成细胶体颗粒。
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Patent Agency Ranking
公开(公告)号：EP0678620A3
公开(公告)日：1996-07-17
申请号：EP95105755.3
申请日：1995-04-18
Applicant: HERCULES INCORPORATED
Inventor： Dasgupta, Sunil Priya , Espy, Herbert Hasting
CPC classification number: C08G73/022 , D21H17/55 , D21H21/10
Abstract: A water-soluble drainage-aid composition which is the reaction product of a bifunctional crosslinking agent which may be an epihalohydrin selected from the group consisting of epichlorohydrin or epibromohydrin, a 1,3-dihalo-2-propanol in which "halo" is chloro- or bromo-, or a glycidyl ester of an alkanesulfonic or arenesulfonic acid, and an oligoamide reaction product of a polyalkylene polyamine with a carboxylic acid selected from the group consisting of dicarboxylic acids containing between 5 and 10 carbons and their acyl halides, amides, and esters of alcohols having up to 6 carbon atoms, and tricarboxylic acids containing between 6 and 10 carbon atoms and their acyl halides, amides, and esters of alcohols having up to 6 carbon atoms, with a mole ratio of polyamine to dicarboxylic acid or its functional derivative between 1.5/1 and 2/1 or a mole ratio of polyamine to tricarboxylic acid or its functional derivative of 3/1, the oligoamide reaction product being an amine-terminated oligo(aminoamide) having an average composition of at least two amide groups and at least four amine groups per molecule, the bifunctional crosslinking agent being used a level of between 1.5 and 2.5 moles per mole of oligoamide; a method for making the water-soluble drainage-aid composition, and a method for using the water-soluble drainage-aid composition as a dewatering aid in paper manufacture.
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公开(公告)号：EP0560257B1
公开(公告)日：1996-05-15
申请号：EP93103686.7
申请日：1993-03-08
Applicant: HERCULES INCORPORATED
Inventor： Dasgupta, Sunil Priya , Espy, Herbert Hastings
IPC: D21H17/26
CPC classification number: D21H17/26
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8.发明公开
公开(公告)号：EP0678620A2
公开(公告)日：1995-10-25
申请号：EP95105755.3
申请日：1995-04-18
Applicant: HERCULES INCORPORATED
Inventor： Dasgupta, Sunil Priya , Espy, Herbert Hasting
CPC classification number: C08G73/022 , D21H17/55 , D21H21/10
Abstract: A water-soluble drainage-aid composition which is the reaction product of a bifunctional crosslinking agent which may be an epihalohydrin selected from the group consisting of epichlorohydrin or epibromohydrin, a 1,3-dihalo-2-propanol in which "halo" is chloro- or bromo-, or a glycidyl ester of an alkanesulfonic or arenesulfonic acid, and an oligoamide reaction product of a polyalkylene polyamine with a carboxylic acid selected from the group consisting of dicarboxylic acids containing between 5 and 10 carbons and their acyl halides, amides, and esters of alcohols having up to 6 carbon atoms, and tricarboxylic acids containing between 6 and 10 carbon atoms and their acyl halides, amides, and esters of alcohols having up to 6 carbon atoms, with a mole ratio of polyamine to dicarboxylic acid or its functional derivative between 1.5/1 and 2/1 or a mole ratio of polyamine to tricarboxylic acid or its functional derivative of 3/1, the oligoamide reaction product being an amine-terminated oligo(aminoamide) having an average composition of at least two amide groups and at least four amine groups per molecule, the bifunctional crosslinking agent being used a level of between 1.5 and 2.5 moles per mole of oligoamide; a method for making the water-soluble drainage-aid composition, and a method for using the water-soluble drainage-aid composition as a dewatering aid in paper manufacture.
Abstract translation: 作为双功能交联剂的反应产物的水溶性助剂组合物，其可以是选自表氯醇或表溴醇的表卤代醇，“卤代”为氯的1,3-二卤代-2-丙醇 - 或溴 - ，或链烷磺酸或芳烃磺酸的缩水甘油酯，以及聚亚烷基多胺与选自含有5至10个碳原子的二羧酸和它们的酰卤，酰胺的羧酸的低聚酰胺反应产物， 和具有至多6个碳原子的醇的酯和含有6至10个碳原子的三羧酸及其酰基卤，酰胺和具有至多6个碳原子的醇的酯，多胺与二羧酸或其多元醇的摩尔比 官能衍生物在1.5 / 1至2/1之间，或多胺与三羧酸或其功能衍生物的摩尔比为3/1，低聚酰胺反应产物为胺封端的醇 ι（氨基酰胺）每分子具有至少两个酰胺基团和至少四个胺基团的平均组成，双官能交联剂的用量为每摩尔寡酰胺1.5至2.5摩尔; 水溶性助溶剂组合物的制造方法以及使用该水溶性助剂组合物作为造纸用脱水助剂的方法。
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9.发明公开Simultaneous generation and measurement of a triboelectric charge on a surface 失效同时产生和在表面上的摩擦电荷的测量。
公开(公告)号：EP0572842A1
公开(公告)日：1993-12-08
申请号：EP93107894.3
申请日：1993-05-14
Applicant: HERCULES INCORPORATED
Inventor： Dasgupta, Sunil Priya , Gingrich, Blain Henry , Matyniak, Bernard Joseph , Weaver, Gerald Gregory II
IPC: G01N27/60
CPC classification number: G01N27/60
Abstract: A process of measuring the triboelectric charge generated on a material surface involves simultaneously (a) generating a triboelectric charge on the material surface and (b) measuring the amount of the triboelectric charge thereby generated.
Abstract translation: 测量在材料表面上产生的摩擦电荷的方法包括同时（a）产生在材料表面上的摩擦电荷以及（b）测量由此产生的摩擦电荷的量。
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10.发明公开Stable blend of ketene dimer size and colloidal silica 失效Stabiles Gemisch von Leimungsmittel aus Ketendimer und kolloidale Silika。
公开(公告)号：EP0564994A1
公开(公告)日：1993-10-13
申请号：EP93105487.8
申请日：1993-04-02
Applicant: HERCULES INCORPORATED
Inventor： Dasgupta, Sunil Priya
IPC: D21H17/74
Abstract: A composition containing a ketene dimer size for sizing paper that is a stable aquasol of positively charged colloidal silica, positively charged colloidal alumina, or positively charged colloidal zirconia, and also contains the ketene dimer, and a method for sizing a paper product of sheeted cellulosic fibers comprising treating the fibers with the said composition, are disclosed.
Abstract translation: 含有正电荷的胶体二氧化硅，带正电荷的胶体氧化铝或带正电荷的胶体氧化锆的稳定的水溶胶的用于定型纸的烯酮二聚体尺寸的组合物，并且还含有烯酮二聚体，以及用于使片状纤维素 公开了包括用所述组合物处理纤维的纤维。
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