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    Process for recovering and recycling organic binder components from a coatings slurry
    1.
    发明授权
    Process for recovering and recycling organic binder components from a coatings slurry 失效
    从涂料浆料中回收和回收有机粘合剂成分的方法

    公开(公告)号：US5281629A

    公开(公告)日：1994-01-25

    申请号：US15728

    申请日：1993-02-10

    申请人： Wieland Hovestadt ,  Lothar Kahl ,  Juergen Meixner ,  Christian Wamprecht ,  Volker Schneider ,  Manfred Schoenfelder

    发明人： Wieland Hovestadt ,  Lothar Kahl ,  Juergen Meixner ,  Christian Wamprecht ,  Volker Schneider ,  Manfred Schoenfelder

    IPC分类号： B05B15/04 ,  C08G18/00 ,  C08G18/08 ,  C08G18/82 ,  C08J11/00 ,  C08J11/04 ,  C09D5/03 ,  C09D5/46 ,  C09D7/00 ,  C09D7/14 ,  C09D175/00 ,  C09D175/04 ,  C08G18/14

    CPC分类号： C09D7/008 ,  C08J11/00

    摘要： The present invention relates to a process for recovering and recycling the organic binder components accumulating during the spraying of a solvent-containing, two-component polyurethane coating or a solvent-containing, moisture-curing one-component polyurethane coating byi) forming a coatings slurry containing the organic binder components, water and a coagulating agent,ii) mixing the coatings slurry, optionally after removing a portion of the water, with an organic solvent which is inert towards isocyanate groups,iii) reacting the free isocyanate groups present in the mixture obtained in step (ii) with a compound containing one isocyanate-reactive group which is more reactive with isocyanate groups than both water and the isocyanate-reactive component of the two-component polyurethane coating, if present, andiv) removing any remaining water and insoluble components from the organic phase accumulating in step (iii) and recovering the organic phase containing the organic binder components.

    摘要翻译： 本发明涉及一种在含有溶剂的双组分聚氨酯涂层或含溶剂的湿固化单组分聚氨酯涂层中积累的有机粘合剂组分的回收和再循环方法，该方法为：i）形成涂层 含有有机粘合剂组分的浆料，水和凝结剂，ii）任选地在除去一部分水之后将涂料浆料与对异氰酸酯基团呈惰性的有机溶剂混合，iii）使存在于 （ii）中得到的混合物与含有一个与异氰酸酯基反应的异氰酸酯反应性基团的化合物比双组分聚氨酯涂层的水和异氰酸酯反应性组分（如果存在）和iv）除去任何剩余的水 和来自步骤（iii）中积累的有机相的不溶性组分，并回收含有有机粘合剂的有机相 贱人

    High solids polyurethane-urea dispersions having improved storage stability
    3.
    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。

    Polyhydroxyl compounds, a process for their production and their use in coating compositions
    4.
    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。

    Binder mixtures for two-component polyurethane coating compositions
    5.
    发明授权
    Binder mixtures for two-component polyurethane coating compositions 失效
    用于双组分聚氨酯涂料组合物的粘合剂混合物

    公开(公告)号：US06001931A

    公开(公告)日：1999-12-14

    申请号：US927445

    申请日：1992-08-10

    申请人： Martin Brahm ,  Dieter Margotte ,  Christian Wamprecht ,  Wieland Hovestadt ,  Jurgen Meixner

    发明人： Martin Brahm ,  Dieter Margotte ,  Christian Wamprecht ,  Wieland Hovestadt ,  Jurgen Meixner

    IPC分类号： C08G18/62 ,  C08G18/65 ,  C08G18/78 ,  C08G18/79 ,  C09D175/04

    CPC分类号： C08G18/79 ,  C08G18/6229 ,  C08G18/6233 ,  C08G18/6254 ,  C08G18/6511 ,  C08G18/7831

    摘要： The present invention relates to binder mixtures for two-component polyurethane coating compositions which dry at room temperature and containa) a polyisocyanate component,b) a hydroxy-functional polyacrylate component based on a mixture of at least two hydroxyl group-containing poly(meth)acrylate resinsi) having a molecular weight (M.sub.n) of 1000 to 100,000,ii) having an at least bimodal molecular weight distribution,iii) prepared by radical copolymerization of olefinically unsaturated monomers in a solvent using monomer mixtures containing less than 50% by weight of monomers carrying hydroxyl groups andiv) wherein the hydroxyl group content of the component having the lowest molecular weight is at least 1.5 times the hydroxyl group content of the component having the highest molecular weight,c) optionally reactive diluents,wherein components a) and b) are present in an amount which corresponds to an NCO/OH equivalent ratio of 0.2:1 to 5:1.

    摘要翻译： 本发明涉及用于双组分聚氨酯涂料组合物的粘合剂混合物，其在室温下干燥并含有a）多异氰酸酯组分，b）基于至少两个含羟基的聚（甲基）丙烯酸酯的混合物的羟基官能聚丙烯酸酯组分 ）丙烯酸酯树脂i）具有1000至100,000的分子量（Mn），ii）具有至少双峰分子量分布，iii）通过烯烃不饱和单体在溶剂中使用包含小于50％的单体混合物的单体混合物 携带羟基的单体的重量和iv）其中具有最低分子量的组分的羟基含量为具有最高分子量的组分的羟基含量的至少1.5倍，c）任选的反应性稀释剂，其中组分a） 和b）以对应于0.2：1至5：1的NCO / OH当量比的量存在。

    Process for recovering binder components from lacquer sludge
    7.
    发明授权
    Process for recovering binder components from lacquer sludge 失效
    从漆泥回收粘合剂成分的方法

    公开(公告)号：US5344851A

    公开(公告)日：1994-09-06

    申请号：US54931

    申请日：1993-04-28

    申请人： Wieland Hovestadt ,  Jochen Bruck ,  Volker Schneider

    发明人： Wieland Hovestadt ,  Jochen Bruck ,  Volker Schneider

    IPC分类号： B29B17/00 ,  C08J11/00 ,  C08J11/04 ,  C09D5/46 ,  C09D7/00 ,  C09D175/00 ,  C09D175/04 ,  C08G18/14

    CPC分类号： C08J11/00 ,  C09D7/008 ,  C08J2375/04

    摘要： The present invention relates to a process for recovering and recycling the organic binder components accumulating as overspray during the spraying of a solvent-containing, two-component polyurethane lacquer or a solvent-containing, moisture-curing, one-component polyurethane lacquer byi) washing the overspray out of the exhaust air of a coating plant with the aid of an aqueous medium which a) contains in dissolved or dispersed form compounds that exhibit greater reactivity towards isocyanate groups than either water or the isocyanate-reactive groups present in two-component polyurethane lacquers, and b) may contain emulsifiers,ii) isolating the chemically modified overspray formed in step (i) in the form of lacquer sludge by treatment with coagulating agents, which may be present in the aqueous medium,iii) mixing the lacquer sludge, containing fully reacted lacquer constituents, coagulating agents and water, optionally after a portion of the water is removed, with an organic solvent andiv) separating the organic phase accumulating in step iii) from the aqueous phase and insoluble-constituents which may be present and recovering the solution of modified organic binder components dissolved in the organic phase.

    摘要翻译： 本发明涉及在喷雾含溶剂的双组分聚氨酯漆或含溶剂的湿固化单组分聚氨酯漆时，通过i）回收和再循环累积为过喷的有机粘合剂组分的方法， 通过水性介质的水性介质，以溶解或分散的形式含有对异氰酸酯基团具有更大反应性的化合物，从而存在于双组分中的水或异氰酸酯反应性基团， 聚氨酯漆，和b）可以含有乳化剂，ii）通过用可能存在于水性介质中的凝结剂进行处理，以漆油污泥的形式分离步骤（i）中形成的化学改性的过喷剂，iii）将漆污泥 ，含有完全反应的漆组分，凝结剂和水，任选地在一部分水被除去后，用有机溶剂 t和iv）将步骤iii）中积聚的有机相与水相和可能存在的不溶组分分离并回收溶解在有机相中的改性有机粘合剂组分的溶液。

    Process for the preparation of aliphatic carbonates having a six-membered ring
    9.
    发明授权
    Process for the preparation of aliphatic carbonates having a six-membered ring 失效
    制备具有六元环的脂族碳酸酯的方法

    公开(公告)号：US5861107A

    公开(公告)日：1999-01-19

    申请号：US877386

    申请日：1997-06-17

    申请人： Hans-Josef Buysch ,  Gerd Fengler ,  Karl-Heinz Neumann ,  Paul Wagner ,  Martin Melchiors ,  Wieland Hovestadt

    发明人： Hans-Josef Buysch ,  Gerd Fengler ,  Karl-Heinz Neumann ,  Paul Wagner ,  Martin Melchiors ,  Wieland Hovestadt

    IPC分类号： C07D319/06 ,  C09K3/00 ,  C07D321/00

    CPC分类号： C07D319/06

    摘要： The invention relates to a process for the preparation of carbonates having a six-membered ring, of the formula ##STR1## by transesterification of 1,3-propanediol compounds with carbonic acid esters and subsequent distillative depolymerization of the oligo- or polycarbonate initially formed, one or more catalysts from the group consisting of compounds of Sn, Ti or Zr being employed both for the transesterification and for the depolymerization and, if appropriate, the distillation residue is at least partly recycled into the transesterification. Such carbonates having a six-membered ring can furthermore be stabilized against undesirable polymerization by addition of small amounts of acids of sulfur or phosphorus or esters or salts thereof.

    摘要翻译： 本发明涉及一种通过1,3-丙二醇化合物与碳酸酯的酯交换反应制备具有下式（VI）的六元环的碳酸酯的方法，随后将低聚物或聚碳酸酯进行蒸馏解聚 最初形成的一种或多种由Sn，Ti或Zr化合物组成的组的催化剂用于酯交换和解聚，如果合适的话，蒸馏残余物至少部分地被再循环到酯交换中。 具有六元环的这种碳酸酯还可以通过加入少量的硫或磷酸或其酯或其盐来稳定而防止不期望的聚合。