Powder coating compositions, a process for their production and their
use for coating heat-resistant substrates
    1.
    发明授权
    Powder coating compositions, a process for their production and their use for coating heat-resistant substrates 失效
    粉末涂料组合物,其制备方法及其用于涂覆耐热基材的方法

    公开(公告)号:US5208291A

    公开(公告)日:1993-05-04

    申请号:US941498

    申请日:1992-09-08

    摘要: The present invention relates to a process for the production of powder coating compositions having a glass transition temperature of 20.degree. to 80.degree. C. bya) homogeneously dissolving in an inert solvent or solvent mixture having a boiling point or range between 50.degree. and 150.degree. C.A) a polyol component having a hydroxyl value of 30 to 155 and a glass transition temperature of 30.degree. to 120.degree. C. and containing at least one hydroxy-functional copolymer of olefinically unsaturated monomers,B) a polyisocyanate component containing blocked isocyanate groups, having a glass transition temperature of -45.degree. to +45.degree. C. and containing at least one ketoxime-blocked polyisocyanate andC) a catalyst component containing at least one catalyst for the reaction between blocked isocyanate groups and hydroxyl groups components, wherein components A) and B) are present in an amount which is sufficient to provide an equivalent ratio of blocked isocyanate groups to hydroxyl groups of 0.5:1 to 1.5:1,b) freeing the resulting solution from the solvent andc) simultaneously and/or subsequently converting the solid obtained into powder form.The present invention also relates to the powder coating compositions obtained by this process and their use for the production of coatings of heat-resistant substrates.

    摘要翻译: 本发明涉及通过以下方法生产具有玻璃化转变温度为20-80℃的粉末涂料组合物的方法:a)均匀溶于沸点或范围为50至150℃的惰性溶剂或溶剂混合物中 A)多元醇组分,其羟基值为30至155,玻璃化转变温度为30至120℃,并含有至少一种烯属不饱和单体的羟基官能共聚物,B)含有封端的多异氰酸酯组分 异氰酸酯基团,玻璃化转变温度为-45℃至+ 45℃,并含有至少一种酮肟封端的多异氰酸酯和C)含有至少一种用于封端异氰酸酯基团和羟基组分之间反应的催化剂的催化剂组分, 其中组分A)和B)以足以提供封端异氰酸酯基与羟基的当量比为0.5:1至1的量存在 b)将所得溶液从溶剂中释放,以及c)同时和/或随后将获得的固体转化为粉末形式。 本发明还涉及通过该方法获得的粉末涂料组合物及其用于生产耐热基材的涂层的用途。

    Powder coating compositions containing polyurethanes having
(meth)acryloyl groups as binders
    2.
    发明授权
    Powder coating compositions containing polyurethanes having (meth)acryloyl groups as binders 失效
    含有(甲基)丙烯酰基作为粘合剂的聚氨酯的粉末涂料组合物

    公开(公告)号:US5068305A

    公开(公告)日:1991-11-26

    申请号:US556223

    申请日:1990-07-20

    摘要: The present invention relates to powder coating compositions which can be cured in the presence of heat and/or high energy radiation and contain polyurethanes which melt at temperatures of 50.degree. to 180.degree. C., have 3 to 10% by weight of olefinic double bonds in the form of (meth)acryloyl groups (calculated as .dbd.C.dbd.C.dbd., molecular weight=24) and are based on the reaction product ofA) 40 to 80 parts by weight of one or more organic polyisocyanates withB) 15 to 50 parts of weight of one or more monohydric alcohols containing (meth)acryloyl groups andC) 2 to 20 parts by weight one or more compounds which are free from (meth)acryloyl groups and contain isocyanate reactive groups.

    摘要翻译: 本发明涉及粉末涂料组合物,其可以在热和/或高能量辐射的存在下固化,并且包含在50-180℃的温度下熔化的聚氨酯,具有3至10重量%的烯属双键 以(甲基)丙烯酰基的形式(以C = C =分子量= 24计算),并且基于A)的反应产物:40至80重量份的一种或多种有机多异氰酸酯与B)15至 50重量份的一种或多种含(甲基)丙烯酰基的一元醇和C)2至20重量份的一种或多种不含(甲基)丙烯酰基并含有异氰酸酯反应性基团的化合物。

    Self-crosslinking polyurethane dispersions and a process for their preparation
    3.
    发明申请
    Self-crosslinking polyurethane dispersions and a process for their preparation 审中-公开
    自交联聚氨酯分散体及其制备方法

    公开(公告)号:US20070004856A1

    公开(公告)日:2007-01-04

    申请号:US11475691

    申请日:2006-06-27

    IPC分类号: C08G18/08

    摘要: The present invention relates to a process for preparing self-crosslinking polyurethane dispersions by I) reacting a1) polyisocyanates with a2) at least one hydroxyl component having an average OH functionality of ≧2 and a number average molecular weight of 62 to 2500 g/mol, wherein the hydroxyl component contains at least one acid-functional compound containing at least one isocyanate-reactive group, to form an NCO-functional and optionally OH-functional prepolymer, II) then reacting the NCO-functional and optionally OH-functional prepolymer with a3) a hydroxyl component having an average OH functionality of >1 and a4) optionally another polyisocyanate component, which may be the same as or different from a1), to form an OH-functional and NCO-free polyurethane, III) adding a blocked polyisocyanate either before, during or after the reaction of steps I) and II), or forming a blocked polyisocyanate in situ from a polyisocyanate and a blocking agent after the reaction of step II) has taken place, IV) neutralizing the acid groups of the resulting composition by adding a5) a neutralizing agent, and V) dispersing the resulting composition in water. The present invention also relates to the dispersions prepared by the present invention and to their use in coating, adhesive and sealant compositions.

    摘要翻译: 本发明涉及一种制备自交联聚氨酯分散体的方法,其方法是使a1)多异氰酸酯与a2)至少一种平均OH官能度> = 2,数均分子量为62〜2500g / mol,其中所述羟基组分含有至少一种含有至少一个异氰酸酯反应性基团的酸官能化合物,以形成NCO-官能和任选的OH-官能预聚物,II)然后使所述NCO-官能和任选的OH-官能预聚物 其中a3)具有平均OH官能度> 1的羟基组分和a4)任选地可以与a1)相同或不同的另一种多异氰酸酯组分,以形成OH-官能和无NCO的聚氨酯,III)加入 在步骤I)和II)的反应之前,期间或之后封闭的多异氰酸酯,或在步骤II)的反应之后由多异氰酸酯和封闭剂原位形成封端多异氰酸酯具有ta 呃地方,IV)通过添加a)中和剂中和所得组合物的酸基,和V)将得到的组合物分散在水中。 本发明还涉及由本发明制备的分散体及其在涂料,粘合剂和密封剂组合物中的用途。

    Polyester polyols and their use in two-component polyurethane lacquers
    6.
    发明授权
    Polyester polyols and their use in two-component polyurethane lacquers 失效
    聚酯多元醇及其在双组分聚氨酯漆中的应用

    公开(公告)号:US6162891A

    公开(公告)日:2000-12-19

    申请号:US352664

    申请日:1994-12-09

    摘要: The present invention relates to polyester polyols having hydroxyl numbers of 175 to 520 which are the reaction products ofa) 50 to 60 mole % of a polyol component containing(i) 0 to 39 mole % of one or more dihydric aliphatic or cycloaliphatic alcohols having at least 2 carbon atoms other than neopentyl glycol,(ii) 20 to 59 mole % of neopentyl glycol and(iii) 41 to 80 mole % of one or more at least trihydric aliphatic alcohols containing at least 3 carbon atoms andb) 40 to 50 mole % of a dicarboxylic acid component containing(iv) 0 to 60 mole % of one or more aliphatic or cycloaliphatic, saturated or unsaturated dicarboxylic acids or their anhydrides having at least 2 carbon atoms other than fumaric acid, itaconic acid and maleic acid or their anhydrides and(v) 40 to 100 mole % of one or more of fumaric acid, itaconic acid, maleic acid or their anhydrides,wherein the percentages set forth in a) and b) each add up to 100.The present invention also relates to the use of these polyester polyols, optionally in admixture with other organic polyhydroxyl compounds, as a binder component for two-component polyurethane lacquers also containing lacquer polyisocyanates, more particularly for the production of lacquer coatings on large vehicles and in car repair lacquering.

    摘要翻译: 本发明涉及羟基数为175〜520的聚酯多元醇,其为a)50〜60摩尔%的多元醇成分的反应产物,所述多元醇成分含有(i)0〜39摩尔%的一种或多种二元脂肪族或脂环族醇, 除新戊二醇以外的至少2个碳原子,(ii)20〜59摩尔%的新戊二醇和(iii)41〜80摩尔%的含有至少3个碳原子的一种以上至少三元脂肪醇,b)40〜 50摩尔%的含有(iv)0至60摩尔%的一种或多种脂族或脂环族饱和或不饱和二羧酸或其酸酐的二羧酸组分,其中除了富马酸,衣康酸和马来酸以外具有至少2个碳原子,或 它们的酸酐和(v)40至100摩尔%的富马酸,衣康酸,马来酸或其酸酐中的一种或多种,​​其中a)和b)中列出的百分比各自加到100上。本发明还涉及 使用这些p 醇酯多元醇,任选与其它有机多羟基化合物混合,作为也包含漆多异氰酸酯的双组分聚氨酯漆的粘合剂组分,更特别地用于在大型车辆和汽车修漆上生产漆涂料。

    Binder mixtures for two-component polyurethane coating compositions
    7.
    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

    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。

    Polyhydroxyl compounds, a process for their production and their use in
coating compositions
    8.
    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

    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。