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    Aqueous dispersions containing a mixture of copolymers and their use in binders
    3.
    发明授权
    Aqueous dispersions containing a mixture of copolymers and their use in binders 有权
    含有共聚物混合物的水分散体及其在粘合剂中的用途

    公开(公告)号：US06586521B2

    公开(公告)日：2003-07-01

    申请号：US09272882

    申请日：1999-03-19

    申请人： Harald Blum ,  Wieland Hovestadt ,  Karl Ludwig Noble

    发明人： Harald Blum ,  Wieland Hovestadt ,  Karl Ludwig Noble

    IPC分类号： C08L3304

    CPC分类号： C08F285/00 ,  C08F265/06 ,  C08F212/00 ,  C08F220/10

    摘要： Aqueous solutions or dispersions of copolymers A) a process of making them and their use in binder compositions. Copolymers A) containing a hydroxy-functional, hydrophobic copolymer I) containing 30 to 85% by weight of (meth)acrylic acid esters having C1 to C18 hydrocarbon radicals in the alcohol portion, aromatic vinyl compounds and/or vinyl esters and 5 to 45% by weight of hydroxy-functional monomers; a hydroxy- and carboxy-functional, hydrophilic-hydrophobic copolymer II) containing 4 to 20% by weight of (meth)acrylic acid esters having C1 to C18 hydrocarbon radicals in the alcohol portion, aromatic vinyl compounds and/or vinyl esters, 4 to 15% by weight of hydroxy-functional monomers and 0.8 to 3.0% by weight of acid-functional monomers; and optionally a hydroxy-functional hydrophobic copolymer III) containing 0 to 16% by weight of hydroxy- and/or non-functional (meth)acrylic acid esters or aromatic vinyl compounds, wherein 1) the sum of Ia), Ib), IIa), IIb) IIc) and IIIa) is 100%, based on the weight of these components, 2) copolymers A) have an acid number, based on solids, of 10 to 28 mg KOH/g substance, 3) the weight percent of monomers IIc) in monomer II) is less than 25% by weight and 4) the weight percent of hydroxy-functional monomers IIb) in copolymer II) is higher than the weight percent of hydroxy-functional monomers Ib) in copolymer I).

    摘要翻译： 共聚物的水溶液或分散体A）制备它们的方法及其在粘合剂组合物中的应用。 共聚物A），其含有含有30〜85重量％的醇部分中具有C1〜C18烃基的（甲基）丙烯酸酯，芳香族乙烯基化合物和/或乙烯基酯的5〜45重量份的羟基官能疏水性共聚物I） 重量％的羟基官能单体; 含有4至20重量％的在醇部分中具有C1至C18烃基的（甲基）丙烯酸酯，芳族乙烯基化合物和/或乙烯基酯的4-羟基和羧基官能的亲水疏水性共聚物II） 15重量％的羟基官能单体和0.8-3.0重量％的酸官能单体; 和任选的含有0至16重量％羟基和/或非官能（甲基）丙烯酸酯或芳族乙烯基化合物的羟基官能疏水性共聚物III），其中1）Ia），Ib），IIa ），IIb）IIc）和IIIa）基于这些组分的重量为100％，2）共聚物A）具有基于固体的10至28mg KOH / g物质的酸值，3）重量百分数 单体II）中的单体IIc）小于25重量％，和4）共聚物II）中羟基官能单体IIb）的重量百分比高于共聚物I）中羟基官能单体Ib）的重量百分数。

    Process for reusing the overspray obtained from spraying coating compositions
    5.
    发明授权
    Process for reusing the overspray obtained from spraying coating compositions 失效
    重复使用从喷涂组合物获得的过喷的方法

    公开(公告)号：US5453460A

    公开(公告)日：1995-09-26

    申请号：US201913

    申请日：1994-02-25

    申请人： Wieland Hovestadt ,  Jochen Bruck ,  Harald Blum

    发明人： Wieland Hovestadt ,  Jochen Bruck ,  Harald Blum

    IPC分类号： B05B15/04 ,  C08G18/00 ,  C08J11/00 ,  C08J11/04 ,  C09D175/00 ,  C09D175/04 ,  C08K5/16

    CPC分类号： C08J11/00

    摘要： The present invention relates to a process for reusing the overspray obtained when spraying water dilutable two-component polyurethane coating compositions containing a polyisocyanate and a compound containing isocyanate reactive groups by(i) collecting the overspray and optionally diluting it with water,(ii) simultaneously with or after step (i), reacting the overspray, optionally in the presence of emulsifiers, with compounds which are more reactive with isocyanate groups than both water and the compounds containing isocyanate reactive groups and(iii) reusing the resulting aqueous solution or dispersion of the chemically modified overspray in a one- or two-component, chemically and/or physically drying coating composition, optionally after adjusting the spray viscosity of the coating compositions to a suitable spray viscosity by either removing or adding water and optionally after the addition of additives.

    摘要翻译： 本发明涉及一种重复使用在喷雾含有多异氰酸酯和含有异氰酸酯反应性基团的化合物的水可稀释双组分聚氨酯涂料组合物时获得的过度喷涂的方法，其方法是（i）收集过喷，并任选地用水稀释，（ii）同时 在步骤（i）之后或之后，任选地在乳化剂存在下使过喷，与水和含有异氰酸酯反应性基团的化合物比异氰酸酯基反应性更强的化合物反应，和（iii）将所得的水溶液或分散体 在一种或两种组分的化学和/或物理干燥的涂料组合物中的化学改性的超喷射，任选地在通过去除或加入水并任选地在添加添加剂之后将涂料组合物的喷雾粘度调节至合适的喷雾粘度 。

    Polyhydroxyl compounds, a process for their production and their use in coating compositions
    6.
    发明授权
    Polyhydroxyl compounds, a process for their production and their use in coating compositions 失效
    多羟基化合物，其制备方法及其在涂料组合物中的应用

    公开(公告)号：US5422421A

    公开(公告)日：1995-06-06

    申请号：US93246

    申请日：1993-07-16

    申请人： Wieland Hovestadt ,  Gerhard Ruttmann ,  Martin Brahm ,  Harald Blum ,  Jurgen Meixner ,  Christian Wamprecht

    发明人： Wieland Hovestadt ,  Gerhard Ruttmann ,  Martin Brahm ,  Harald Blum ,  Jurgen Meixner ,  Christian Wamprecht

    IPC分类号： C09D201/00 ,  C08F220/26 ,  C08F220/28 ,  C08F283/02 ,  C08G18/62 ,  C08G18/63 ,  C08G63/00 ,  C09D133/06 ,  C09D151/00 ,  C09D151/08 ,  C09D175/04 ,  C08G63/08 ,  C08G63/82

    CPC分类号： C08G63/00 ,  C08F220/28 ,  C08G18/6229 ,  C08G18/631 ,  C08G18/638 ,  C09D133/066

    摘要： The present invention relates to a process for the production of polyhydroxyl compounds having a hydroxyl group content of 2 to 10% by weight and a viscosity at 23.degree. C. of 250 to 80,000 mPa.s by the radically initiated polymerization at a reaction temperature of 80.degree. to 220.degree. C. ofa) 100 parts by weight of a mixture of olefinically unsaturated monomers containing at least 1% by weight of monomers containing alcoholic hydroxyl groups in the presence ofb) 5 to 500 total parts by weight, which may be present at the beginning of the reaction or added during the reaction, of one or more cyclic compounds which, in the presence of initiator compounds containing alcoholic hydroxyl groups, are capable of a ring-opening polymerization reaction andc) 2 to 300 parts by weight, which may be present at the beginning of the reaction or added during the reaction, of one or more polyhydric alcohols having a molecular weight of 62 to 1000.The present invention also relates to the polyhydroxyl compounds obtained by this process and to their use in combination with suitable hardeners as binders for one-component or two-component coating compositions.

    摘要翻译： 本发明涉及一种生产羟基含量为2〜10重量％，在23℃下的粘度为250〜80,000mPa.s的多羟基化合物的方法，通过自由基引发的聚合反应， 80℃至220℃的a）100重量份的含有至少1重量％的含醇羟基的单体的烯属不饱和单体的混合物在b）5至500重量份的存在下，其可以 在反应开始时或在反应期间加入一种或多种环状化合物，其在含有醇羟基的引发剂化合物的存在下能够开环聚合反应，c）2〜300份 重量，其可以在反应开始时存在或在反应期间加入一种或多种分子量为62至1000的多元醇。本发明还涉及多羟基 通过该方法获得的化合物及其与合适的硬化剂的组合使用作为单组分或双组分涂料组合物的粘合剂。

    High solids polyurethane-urea dispersions having improved storage stability
    8.
    发明授权
    High solids polyurethane-urea dispersions having improved storage stability 有权
    具有改进的储存稳定性的高固体聚氨酯 - 脲分散体

    公开(公告)号：US06084051A

    公开(公告)日：2000-07-04

    申请号：US318356

    申请日：1999-05-25

    申请人： Harald Blum ,  Wieland Hovestadt ,  Lothar Kahl ,  Douglas A. Wicks

    发明人： Harald Blum ,  Wieland Hovestadt ,  Lothar Kahl ,  Douglas A. Wicks

    IPC分类号： C08J3/07 ,  C08G18/00 ,  C08G18/08 ,  C08G18/10 ,  C08G18/32 ,  C08G18/75 ,  C09D175/04 ,  C09D175/06 ,  C08G18/12

    CPC分类号： C08G18/0866 ,  C08G18/0823 ,  C09D175/06

    摘要： The present invention relates to aqueous polyurethane-urea dispersions having a resin solids content of at least 35 wt. % and a pH of at least 7.5 which are prepared bya) forming an isocyanate-terminated prepolymer by reacting a difunctional polyol having a molecular weight of 500 to 6000, a low molecular weight alcohol, a diisocyanate and/or triisocyanate and an isocyanate-reactive compound which has an acid group,b) neutralizing 65% to 95% of the acid groups prior to dispersing the prepolymer in water,c) dispersing the neutralized prepolymer in water,d) chain extending the isocyanate groups with water to form a polyurethane-urea, ande) after completion of the chain extending reaction adding additional neutralizing agent to provide a total amount of neutralizing agent that is sufficient to neutralize at least 115% of the acid groups of component D),wherein the polyurethane-urea contains 1.0 to 4.0%, based on resin solids, of the isolated urea groups. The present invention also relates to a process for the preparation of these polyurethane-urea dispersions and to their use in coating compositions.

    摘要翻译： 本发明涉及树脂固体含量至少为35重量％的水性聚氨酯 - 脲分散体。 ％，pH至少为7.5，其通过以下步骤制备：a）通过使分子量为500至6000的双官能多元醇，低分子量醇，二异氰酸酯和/或三异氰酸酯与异氰酸酯 - 具有酸基的反应性化合物，b）在将预聚物分散在水中之前中和65％至95％的酸基，c）将中和的预聚物分散在水中，d）用水延伸异氰酸酯基团以形成聚氨酯 - 脲，和e）在扩链反应完成后，加入另外的中和剂以提供足以中和组分D）的至少115％酸基团的中和剂的总量，其中聚氨酯 - 尿素含有1.0 至4.0％，基于树脂固体，分离的脲基团。 本发明还涉及制备这些聚氨酯 - 脲分散体的方法及其在涂料组合物中的用途。