Oberflächenleimungsmittel für Papier
    82.
    发明公开
    Oberflächenleimungsmittel für Papier 失效
    表面尺寸的纸张。

    公开(公告)号:EP0238968A1

    公开(公告)日:1987-09-30

    申请号:EP87103796.6

    申请日:1987-03-16

    申请人: BAYER AG

    IPC分类号: D21H3/38 C08F8/14

    CPC分类号: C08F8/14 D21H17/43 D21H21/16

    摘要: Oberflächenleimungsmittel für Papier enthaltend wäßrige oder wäßrig-alkoholische Alkali-, Amin- oder Ammoniumsalzlösungen von Copolymerisaten aus Malein­säureanhydrid und Diisobutylen und gegebenenfalls einem Vinylmonomeren der Formel
    in der H, -CH₃, -C₂H₅, -OR₂, -OCOCH₃,
    -CH₂OH, -CH₂-O-COCH₃,
    R₁ H, -CH₃ und
    R₂ Alkyl bezeichnen,
    wobei die Anhydridgruppen der Copolymerisate zu etwa 3 bis etwa 20 Mol-%, bezogen auf die Anhydridgruppen, mit aliphatischen Monoalkoholen mit 1 bis 12 C-Atomen bisverestert sind.

    摘要翻译: 表面上浆剂含有马来酐和二异丁烯的共聚物的水溶液或水 - 醇的碱金属,胺或铵的盐溶液的纸张和如果合适的话式其中H,-CH 3,-C 2 H 5,-OR 2,-OCOCH 3,的乙烯基单体 -CH 2 OH,-CH 2 -O-COCH 3,R 1是H,-CH 3和R 2分别表示烷基,所述共聚物的酸酐基团,从约3至约20摩尔%,基于酸酐基团,被具有1至12个碳原子的脂肪族单 被bisverestert。

    Flocculation processes
    85.
    发明公开
    Flocculation processes 失效
    Flockungsverfahren。

    公开(公告)号:EP0202780A2

    公开(公告)日:1986-11-26

    申请号:EP86302987.2

    申请日:1986-04-21

    IPC分类号: C02F1/56

    摘要: 0 When flocculating an aqueous suspension of suspended solids using a high molecular weight synthetic polymeric flocculant the shear stability of the flocs is increased if the polymeric material includes polymeric particles of below 10 u.m dry size. The flocculated solids can therefore be subjected to shear without increasing the amount of discrete suspended solids in the aqueous medium and generally they are suspended to shear by shearing the aqueous medium containing them, either before dewatering, generally on a centrifuge, piston press or belt press, or by continuously agitating them, for instance in a chemical reaction medium. The polymeric material is generally formed by mixing into water polymeric particles made by reverse phase or emulsion polymerisation in the presence of added cross linking agent. Alternatively particles insolubilised by insoluble monomer may be used. A reverse phase dispersion of water soluble polymer may be used if the particles remain undissolved, eg if they are added in the absence of an oil in water emulsifying agent.

    摘要翻译: 当使用高分子量合成聚合物絮凝剂絮凝悬浮固体的水性悬浮液时,如果聚合物材料包括低于10μm干燥尺寸的聚合物颗粒,则絮凝物的剪切稳定性增加。 因此,絮凝的固体可以经受剪切而不增加水性介质中离散的悬浮固体的量,并且通常在脱水之前通常剪切含有它们的水性介质,通常在离心机,活塞压力机或带式压力机 ,或者通过连续搅拌它们,例如在化学反应介质中。 聚合物材料通常通过在添加的交联剂的存在下混合成由反相或乳液聚合制备的水聚合物颗粒而形成。 或者可以使用不溶性单体不溶解的颗粒。 如果颗粒保持不溶,可以使用水溶性聚合物的反相分散体,例如,如果它们在水乳化剂中不存在油时加入。

    Formaldehyde-free latex and fabrics made therewith
    86.
    发明公开
    Formaldehyde-free latex and fabrics made therewith 无效
    Kein Formaldehyd enthaltendes Latex und damit hergestellteGegenstände。

    公开(公告)号:EP0184153A2

    公开(公告)日:1986-06-11

    申请号:EP85115169.6

    申请日:1985-11-29

    IPC分类号: C08F2/22 D21H17/37 D04H1/64

    摘要: @ A latex that is devoid of formaldehyde-containing monomers in polymerized form, does not evolve formaldehyde nor decomposes to produce formaldehyde is used in the production of impregnated or treated paper and woven and nonwoven fabrics. The latex is produced by polymerizing a monomer charge containing at least one principal monomer and a crosslinking agent combination consisting of 0.1 to 10 weight parts of a monounsaturated dicarboxylic acid containing 4 to 6 carbon atoms and 0.1 to 10 weight parts of an amide containing 3 to 8 carbon atoms that does not produce formaldehyde. based on a total of 100 weight parts of all monomers that are polymerized. The articles made with the cured latex are characterized by softness, high wet tensile strength, toughness and other physical properties that reflect a different balance of properties.

    摘要翻译: 没有含有聚合形式的含甲醛单体的胶乳不用于生产甲醛,也不分解生成甲醛,用于生产浸渍或处理过的纸和织造和非织造织物。 该胶乳通过聚合含有至少一种主要单体的单体电荷和由0.1至10重量份含有4至6个碳原子的单不饱和二羧酸和0.1至10重量份含3- 8个碳原子,不产生甲醛。 基于总共100重量份的所有聚合单体。 用固化胶乳制成的制品的特征在于柔软性,高湿拉伸强度,韧性和反映不同平衡性能的其它物理性能。

    PAPER MAKING PROCESS UTILIZING AN AMPHOTERIC MUCOUS STRUCTURE AS BINDER
    87.
    发明授权
    PAPER MAKING PROCESS UTILIZING AN AMPHOTERIC MUCOUS STRUCTURE AS BINDER 失效
    使用AMPHTERIC MUCOUS结构作为粘合剂的造纸工艺

    公开(公告)号:EP0060291B1

    公开(公告)日:1986-06-04

    申请号:EP81902657.6

    申请日:1981-09-16

    申请人: SUNDEN, Olof

    IPC分类号: D21H3/02 D21H3/78 C08L3/04

    摘要: Paper making process with improved retention and binding of fillers and second grade fibers. It is characterized by the use of an amphoteric mucous like compound as binder. This compound is the reaction product between cationic starch of low charge density and an anionic polymer of high charge density as carboxymethyl cellulose. The compound has amphoteric and mucous characters and should be used for paper making, while in a unique transient structure. This structure is characterized by filler particles being enclosed and finely distributed in droplets of the highly hydrated but substantially water-insoluble mucous compound. According to the invention this transient structure may further be reorganized to a less hydrated and more resistant gel structure, still enclosing the filler. This gel structure can stand the draining forces on a paper machine wire. This structural reorganization is achieved by reaction with colloidal inorganic polymers of very high surface charge as polysilicic acid and polyaluminium compounds. The process yields papers of high strengths and filler retentions of more than 90% at a single fire passage even at extreme filler contents of 30-60% of the paper weight.

    Oil filters using water-based latex binders
    88.
    发明公开
    Oil filters using water-based latex binders 失效
    使用乳胶粘合剂,机油滤清器的水性浸渍。

    公开(公告)号:EP0181540A2

    公开(公告)日:1986-05-21

    申请号:EP85113554.1

    申请日:1985-10-24

    IPC分类号: B01D39/14 B01D39/16 D21H3/38

    摘要: @ This invention relates to impregnated oil filter substrate and to oil filters containing such impregnated substrates that require a single cure and can pass a hot oil immersion test, said filter substrate being impregnated with a water-based binder comprising a latex containing at least 20% polymerized vinyl chloride in the latex solids, said latex being a copolymer of vinyl chloride, 30 to 60% lower alkyl acrylate, and one or more comonomers selected from acrylic acid and N-methylol acrylamide, said comonomers being used in an amount of up to 5%, based on the weight of the monomers used to make the latex; said binder also containing 5 to 20 parts of a cross-linking resin per 100 weight parts of latex solids and 5 to 20% catalyst for the cross-linking resin based on the weight of the cross-linking resin.