Crosslinkable powder composition which is redispersible in water
    21.
    发明授权
    Crosslinkable powder composition which is redispersible in water 有权
    可再分散于水中的可交联粉末组合物

    公开(公告)号:US06228937B1

    公开(公告)日:2001-05-08

    申请号:US09507655

    申请日:2000-02-22

    IPC分类号: C08G6348

    摘要: A crosslinkable powder composition is provided which is redispersible in water and comprises a) from 30 to 95 parts by weight of a water-insoluble, film-forming polymer of one or more free-radically polymerizable, ethylenically unsaturated monomers, b) from 5 to 70 parts by weight of a water-soluble polymer, where at least one of the polymer components a) and b) comprises one or more comonomer units containing reactive groups which can form a chemical, nonionic bond with one another or with crosslinkers, and the parts by weight of a) and b) add up to 100 parts by weight, and c) from 0.01 to 5% by weight, based on the total weight of a) and b), of at least one phase transfer catalyst.

    摘要翻译: 提供可再分散在水中的可交联粉末组合物,其包含a)30至95重量份的一种或多种可自由基聚合的烯属不饱和单体的水不溶性成膜聚合物,b)5-70 重量份的水溶性聚合物,其中聚合物组分a)和b)中的至少一种包含一个或多个共聚单体单元,其含有可以彼此形成化学,非离子键或与交联剂形成化学,非离子键的反应性基团, 的a)和b)加入至少100重量份,和c)基于a)和b)的总重量计,至少一种相转移催化剂为0.01-5重量%。

    Process for preparing crosslinkable binders
    22.
    发明授权
    Process for preparing crosslinkable binders 失效
    制备可交联粘合剂的方法

    公开(公告)号:US06187861B1

    公开(公告)日:2001-02-13

    申请号:US09285622

    申请日:1999-04-03

    IPC分类号: C08L2904

    摘要: A process is provided for preparing crosslinkable binders in the form of the aqueous dispersions by polymerizing vinyl ester-olefin copolymers in the presence of protective colloid, which comprises polymerizing vinyl ester-olefin copolymers having a Tg of less than −10° C. by emulsion polymerization in the presence of a protective colloid based on (meth)acrylate polymers comprising from 80 to 95% by weight, based on the overall weight of the polymer, of acrylates or methacrylates of aliphatic alcohols of 1 to 12 carbon atoms and from 5 to 20% by weight, based on the overall weight of the copolymer, of ethylenically unsaturated monocarboxylic or dicarboxylic acids, the latter copolymer having a glass transition temperature Tg of from 60 to 120° C., and, after the end of polymerization, introducing the crosslinkable groups by reacting the carboxyl groups of the (meth)acrylate polymers with ethylenically unsaturated compounds comprising functions suitable for esterifying the carboxyl group.

    摘要翻译: 提供一种通过在保护胶体存在下聚合乙烯基酯 - 烯烃共聚物来制备水性分散体形式的可交联粘合剂的方法,其包括通过乳液聚合Tg低于-10℃的乙烯基酯 - 烯烃共聚物 在基于(甲基)丙烯酸酯聚合物的保护胶体存在下进行聚合,所述聚合物包含80至95重量%,基于聚合物的总重量,具有1至12个碳原子的脂族醇的丙烯酸酯或甲基丙烯酸酯和5至 20重量%,基于共聚物的总重量,烯键式不饱和一元羧酸或二羧酸,后一共聚物的玻璃化转变温度Tg为60至120℃,并且在聚合结束后,引入 通过使(甲基)丙烯酸酯聚合物的羧基与烯键式不饱和化合物反应,包含适于酯化羧基的功能的交联基团 oup。

    Crosslinkable nematic polyorganosiloxanes
    23.
    发明授权
    Crosslinkable nematic polyorganosiloxanes 失效
    可交联向列型聚有机硅氧烷

    公开(公告)号:US5610258A

    公开(公告)日:1997-03-11

    申请号:US540630

    申请日:1995-10-11

    摘要: The crosslinkable nematic polyorganosiloxanes are cyclic polyorganosiloxanes containing at least three different mesogenic side groups per polyorganosiloxane, where at least two mesogenic side groups per polyorganosiloxane each contain at least three radicals selected from aromatic, heteroaromatic and cycloaliphatic radicals. They contain a methacrylic or acrylic group in at least one of the mesogenic side groups. The cyclic polyorganosiloxanes have a broad nematic phase and can be readily aligned.

    摘要翻译: 可交联向列型聚有机硅氧烷是每个聚有机硅氧烷含有至少三个不同的介晶侧基的环状聚有机硅氧烷,其中每个聚有机硅氧烷至少有两个介晶侧基各自含有至少三个选自芳族,杂芳族和脂环族基团的基团。 它们在至少一个介晶侧基中含有甲基丙烯酸或丙烯酸基团。 环状聚有机硅氧烷具有宽的向列相,并且可以容易地排列。

    Method for processing wastewater and exhaust gas condensates from the polymerization of vinyl acetate and ethylene in an aqueous medium
    24.
    发明授权
    Method for processing wastewater and exhaust gas condensates from the polymerization of vinyl acetate and ethylene in an aqueous medium 有权
    在水性介质中从乙酸乙烯酯和乙烯的聚合处理废水和废气冷凝物的方法

    公开(公告)号:US09061922B2

    公开(公告)日:2015-06-23

    申请号:US14117480

    申请日:2012-05-31

    摘要: A method for processing wastewater and exhaust gas condensates from the polymerization of vinyl acetate and ethylene and optionally other comonomers in an aqueous medium by suspension or emulsion polymerization employs relieving pressure after completion of the polymerization of the polymerization batch and discharging the polymer dispersion. During the relieving, the gaseous phase is removed by means of a compressor. Optionally, the gaseous phase occurring during stripping is removed by the compressor and cooled by one or more heat exchangers before entry into the compressor. The liquid phases occurring in the compressor and optionally in the heat exchanger are separated from the gaseous phase and the liquid phases are given to a rectification column, and separated into a vinyl acetate monomer phase and a wastewater phase, and the vinyl acetate monomer phase is resupplied to polymerization.

    摘要翻译: 通过悬浮或乳液聚合在乙酸乙烯酯和乙烯以及任选的其它共聚单体在水性介质中的聚合处理废水和废气冷凝物的方法,在完成聚合批次的聚合并排出聚合物分散体之后,得到释放压力。 在释放过程中,通过压缩机除去气相。 任选地,在汽提期间发生的气相通过压缩机除去,并在进入压缩机之前被一个或多个热交换器冷却。 在压缩机中和任选地在热交换器中发生的液相与气相分离,液相被送入精馏塔,分离成乙酸乙烯酯单体相和废水相,乙酸乙烯酯单体相为 补充聚合。

    Process for Continuous Emulsion Polymerization
    25.
    发明申请
    Process for Continuous Emulsion Polymerization 有权
    连续乳液聚合方法

    公开(公告)号:US20130102702A1

    公开(公告)日:2013-04-25

    申请号:US13505921

    申请日:2011-07-07

    IPC分类号: C08F2/22

    摘要: A process for aqueous, free-radically initiated, continuous emulsion polymerization of A) at least one vinyl ester and optionally at least one (meth)acrylic ester, B) ethylene, and C) 0 to 10% by weight of one or more ethylenically unsaturated, functionalized comonomers, in the presence of 3.0 to 12.5% by weight of one or more emulsifiers, where at least 50% by weight are nonionic emulsifiers, and 0 to 10% by weight of one or more protective colloids, in a stirred tank cascade with at least two pressure reactors connected in series and with at least one low-pressure reactor connected downstream.

    摘要翻译: A)至少一种乙烯基酯和任选的至少一种(甲基)丙烯酸酯B)乙烯和C)0至10重量%的一种或多种烯属的(甲基)丙烯酸酯的水,自由基引发,连续乳液聚合的方法 在3.0至12.5重量%的一种或多种乳化剂(其中至少50重量%为非离子乳化剂)和0至10重量%的一种或多种保护性胶体的存在下,在搅拌槽中存在不饱和官能化共聚单体 与至少两个串联的压力反应器与连接在下游的至少一个低压反应器串联连接。

    Process for reclaiming residual ethylene in the preparation of vinyl ethylene copolymers
    28.
    发明授权
    Process for reclaiming residual ethylene in the preparation of vinyl ethylene copolymers 有权
    在乙烯基乙烯共聚物的制备中回收残余乙烯的方法

    公开(公告)号:US06809174B2

    公开(公告)日:2004-10-26

    申请号:US10678365

    申请日:2003-10-03

    IPC分类号: C08F624

    摘要: A process for preparing copolymers via free-radical-initiated polymerization of one or more vinyl esters, ethylene, and also, where appropriate, other ethylenically unsaturated monomers copolymerizable therewith, at a pressure of from 5 to 100 bar abs., in an aqueous medium, by emulsion or suspension polymerization, which comprises, after termination of the polymerization, reclaiming residual unreacted ethylene by depressurizing the polymerization reaction mixture to a pressure of from 0.1 to 5 bar absolute, comprising a gas phase containing residual ethylene gas to a pressure of from 2 to 20 bar absolute, absorbing the gas phase into vinyl ester(s), and reusing the resulting solution of ethylene in vinyl esters(s) in a further polymerization.

    摘要翻译: 一种通过自由基引发的一种或多种乙烯基酯,乙烯,以及在适当的情况下,可与其共聚的其它烯属不饱和单体,在5-100巴绝对压力下,在水介质中进行自由基引发聚合制备共聚物的方法 通过乳液或悬浮聚合,其包括在聚合终止后通过将聚合反应混合物减压至0.1至5巴绝对压力来回收残留的未反应的乙烯,其包含含残余乙烯气体的气相至压力为 2至20巴绝对,将气相吸收到乙烯基酯中,并在得到的乙烯基酯溶液中重新使用乙烯基酯进一步聚合。

    Process for preparing protective-colloid-stabilized polymers by continuous emulsion polymerization
    29.
    发明授权
    Process for preparing protective-colloid-stabilized polymers by continuous emulsion polymerization 有权
    通过连续乳液聚合制备保护胶体稳定的聚合物的方法

    公开(公告)号:US06770722B2

    公开(公告)日:2004-08-03

    申请号:US10284989

    申请日:2002-10-31

    IPC分类号: C08F21002

    CPC分类号: C08F210/02 C08F218/08

    摘要: A process for preparing aqueous dispersions or water-redispersible polymer powders of polyvinyl-alcohol-stabilized polymers based on vinyl ester(s), and ethylene, by continuous emulsion polymerization with no seed latex, and optionally drying the dispersion, by a) polymerizing in at least two pressurized reactors in series at a temperature of 40 to 100° C. and a pressure of 5 to 100 bar to a residual monomer content of less than 3% by weight, and continuing polymerizing in an unpressurized reactor at 20 to 60° C. and less than 1.0 bar; b) initiating polymerization by a redox system containing oxidizing and reducing components, at least part of the reducing component introduced within the first pressurized reactor, c) metering polyvinyl alcohol into the first pressure reactor such that its proportion is ≦6% by weight, based on the monomers continuously introduced to the reactor, d) introducing 10 to 60% by weight of total vinyl ester into the second pressure reactor, e) maintaining a weight ratio of redox system oxidation component to monomer of from 0.03 to 0.07 in the first reactor, and f) a residence time of 2.5 hours or less in that reactor.

    摘要翻译: 一种制备基于乙烯基酯和乙烯的聚乙烯醇稳定聚合物的水性分散体或水可再分散聚合物粉末的方法,通过不含种子胶乳的连续乳液聚合,并任选地干燥分散体,通过在 至少两个加压反应器在40至100℃的温度下串联,压力为5至100巴,残余单体含量小于3重量%,并在20至60℃的无压力反应器中继续聚合 并且小于1.0巴; b)通过含有氧化和还原组分的氧化还原体系引发聚合,至少部分引入第一加压反应器中的还原组分,c)将聚乙烯醇计量到第一压力反应器中,使其比例为 基于连续引入反应器的单体,d = 6重量%,d)将10至60重量%的总乙烯基酯引入第二压力反应器中,e)保持重量 在第一反应器中氧化还原体系氧化组分与单体的比例为0.03至0.07,以及f)该反应器中的停留时间为2.5小时或更短。

    Solvent free coating compositions for soiling-resist ant facades
    30.
    发明授权
    Solvent free coating compositions for soiling-resist ant facades 有权
    无溶剂涂料组合物,用于防腐​​外墙

    公开(公告)号:US06740692B2

    公开(公告)日:2004-05-25

    申请号:US10146853

    申请日:2002-05-16

    IPC分类号: C08L302

    摘要: Solventlessly preparable coating compositions for producing soiling-resistant coatings, comprise: a) at least one film-forming polymer of one or more vinyl ester, (meth)acrylate, vinylaromatic, olefin, 1,3-diene, or vinyl halide monomers, and, if desired, further monomers copolymerizable therewith, in the form of an aqueous dispersion or water-redispersible powder, b) one or more photoinitiators and/or fungicides, c) at least one pigment, d) one or more fillers, and, if desired, e) further additives, wherein the photoinitiators and fungicides b) are in the form of complexes with cyclodextrin or its derivatives.

    摘要翻译: 用于生产耐污染涂料的无溶剂制备涂料组合物包括:a)至少一种成膜聚合物,其一种或多种乙烯基酯,(甲基)丙烯酸酯,乙烯基芳族化合物,烯烃,1,3-二烯烃或卤乙烯单体,和 如果需要,可以以水分散体或水可再分散粉末的形式与其共聚的其它单体,b)一种或多种光引发剂和/或杀真菌剂,c)至少一种颜料,d)一种或多种填料,以及如果 所需的e)其它添加剂,其中光引发剂和杀真菌剂b)与环糊精或其衍生物形成复合物。