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    Uretdione powder coating cross-linking agents having a low melt viscosity
    73.
    发明授权
    Uretdione powder coating cross-linking agents having a low melt viscosity 失效
    具有低熔体粘度的Uretdione粉末涂料交联剂

    公开(公告)号：US5621064A

    公开(公告)日：1997-04-15

    申请号：US556549

    申请日：1995-11-29

    Applicant: Hans-Josef Laas ,  Reinhard Halpaap ,  Hans-Ulrich Meier-Westhues ,  Wolfgang Schultz

    Inventor： Hans-Josef Laas ,  Reinhard Halpaap ,  Hans-Ulrich Meier-Westhues ,  Wolfgang Schultz

    IPC: C08G18/32 ,  C08G18/42 ,  C08G18/44 ,  C08G18/65 ,  C08G18/66 ,  C08G18/78 ,  C08G18/79 ,  C08G18/80 ,  C09D5/03 ,  C09D5/46 ,  C08G18/10

    CPC classification number: C08G18/798 ,  C08G18/8012 ,  C08G18/8064 ,  C08G18/808 ,  C08G2150/20

    Abstract: The present invention relates to polyaddition compounds that are solid below 40.degree. C. and liquid above 125.degree. C. and contain, based on the weight of the polyaddition compounds,a) 0 to 2% by weight of free isocyanate groups (calculated as NCO; molecular weight=42),b) 3 to 16% by weight of uretdione groups (calculated as C.sub.2 N.sub.2 O.sub.2 ; molecular weight=84),c) 10 to 22% by weight of urethane groups (calculated as --NH--CO--O--; molecular weight=59).d) 0 to 20% by weight of carboxylic add ester groups (calculated as CO--O--; molecular weight=44) ande) of 0 to 25% by weight of carbonate groups (calculated as --O--CO--O--; molecular weight=60),provided that the total content of carboxylic add ester groups and carbonate groups is at least 1% by weight.The present invention also relates to a process for the preparation of these polyaddition compounds and to their use as a starting component for the manufacture of polyurethane plastics, especially as the cross-linking component in thermally cross-linkable two-component polyurethane powder coatings for heat-resistant substrates.

    Abstract translation: 本发明涉及固体低于40℃，液体高于125℃并含有基于加聚化合物的重量的加成化合物，a）0至2重量％的游离异氰酸酯基团（以NCO计算 ;分子量= 42），b）3至16重量％的脲二酮基团（以C 2 N 2 O 2计算;分子量= 84），c）10至22重量％的氨基甲酸酯基团（以-NH-CO-O- ;分子量= 59）。 d）0至20重量％的羧酸酯基（以CO-O-计算;分子量= 44）和e）0至25重量％的碳酸酯基团（以-O-CO-O-计算） 分子量= 60），条件是羧酸酯基和碳酸酯基的总含量为至少1重量％。 本发明还涉及一种制备这些加聚化合物的方法及其用作制备聚氨酯塑料的起始组分的用途，特别是作为用于热交联的双组分聚氨酯粉末涂料中的交联组分 耐性基材。

    Powder coating compositions, a process for their production and their use for coating heat-resistant substrates
    75.
    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

    Applicant: Christian Wamprecht ,  Reinhard Halpaap ,  Hans-Joachim Kreuder ,  Manfred Bock ,  Jurgen Meixner ,  Rainer Rettig ,  Wolfgang Schultz

    Inventor： Christian Wamprecht ,  Reinhard Halpaap ,  Hans-Joachim Kreuder ,  Manfred Bock ,  Jurgen Meixner ,  Rainer Rettig ,  Wolfgang Schultz

    IPC: B05D7/24 ,  C08G18/62 ,  C08G18/78 ,  C08G18/79 ,  C08G18/80 ,  C08J3/12 ,  C09D5/03 ,  C09D5/46 ,  C09D175/00 ,  C09D175/04

    CPC classification number: C08G18/6229 ,  C08G18/6254 ,  C08G18/78 ,  C08G18/7831 ,  C08G18/792 ,  C08G18/8077 ,  C08G2150/20 ,  Y10S524/904

    Abstract: 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.

    Abstract translation: 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 lacquer and its use for coating heat-resistant substrates
    77.
    发明授权
    Powder lacquer and its use for coating heat-resistant substrates 失效
    粉末漆及其用于涂覆耐热基材的用途

    公开(公告)号：US4900800A

    公开(公告)日：1990-02-13

    申请号：US73927

    申请日：1987-07-15

    Applicant: Reinhard Halpaap ,  Josef Pedain ,  Hans-Joachim Kreuder ,  Gerhard Klein ,  Walter Schafer ,  Dieter Arlt

    Inventor： Reinhard Halpaap ,  Josef Pedain ,  Hans-Joachim Kreuder ,  Gerhard Klein ,  Walter Schafer ,  Dieter Arlt

    IPC: C08G18/72 ,  C08G18/02 ,  C08G18/16 ,  C08G18/73 ,  C08G18/79 ,  C08G18/80 ,  C09D5/03 ,  C09D5/46 ,  C09D175/00 ,  C09D175/04

    CPC classification number: C08G18/8058 ,  C08G18/791 ,  C08G18/8009 ,  C08G2150/20

    Abstract: The present invention relates to a powder lacquer containing a mixture of(A) a polyisocyanate component in power form which is solid below about 40.degree. C. and liquid above about 150.degree. C. and(B) a organic polyhydroxyl component in powder form which is solid below about 40.degree. C. and liquid above about 150.degree. C.,components (A) and (B) being present in quantities corresponding to an equivalent ratio of isocyanate groups to hydroxyl groups of about 0.6:1 to 1.2:1, characterized in that component (A) is based on a polyisocyanate or polyisocyanate mixture which(a) does not contain any blocking agents for isocyanate groups,(b) has a content of free isocyanate groups (expressed as NCO) attached to tertiary, aliphatic or cycloaliphatic carbon atoms of about 8 to 24% by weight and an average NCO functionality of at least 2.1,(c) has a urethane group content (expressed as --NH--CO--O--) of about 3 to 30% by weight and(d) has an isocyanurate group content (expressed as C.sub.3 N.sub.3 O.sub.3) of 0 to about 30% by weight.The present invention also relates to the use of this powder lacquer for the production of coatings on heat-resistant substrates by methods known in powder lacquer technology.

    Abstract translation: 本发明涉及一种粉末漆，其含有（A）固体低于约40℃的功率形式的多异氰酸酯组分和高于约150℃的液体的混合物和（B）粉末形式的有机多羟基组分， 固体低于约40℃，液体高于约150℃，组分（A）和（B）的存在量相当于异氰酸酯基与羟基的当量比为约0.6:1至1.2:1， 其特征在于组分（A）是基于多异氰酸酯或多异氰酸酯混合物，其中（a）不含任何异氰酸酯基团的封端剂，（b）具有连接到叔脂族或叔碳原子上的游离异氰酸酯基团（表示为NCO） 约8至24重量％的脂环族碳原子和平均NCO官能度至少为2.1，（c）具有约3至30重量％的氨基甲酸酯基含量（表示为-NH-CO-O-）和（ d）具有0至约的异氰脲酸酯基含量（表示为C 3 N 3 O 3） 30重量％。 本发明还涉及这种粉末漆用于通过粉末漆技术中已知的方法在耐热基材上生产涂层的用途。

    Process for the preparation of viscosity stable polyurethane solutions
    79.
    发明授权
    Process for the preparation of viscosity stable polyurethane solutions 失效
    制备粘度稳定的聚氨酯溶液的方法

    公开(公告)号：US4530990A

    公开(公告)日：1985-07-23

    申请号：US433596

    申请日：1982-10-08

    Applicant: Reinhard Halpaap ,  Josef Pedain ,  Wilhelm Thoma ,  Jurgen Grammel

    Inventor： Reinhard Halpaap ,  Josef Pedain ,  Wilhelm Thoma ,  Jurgen Grammel

    IPC: C08G18/00 ,  C08G18/10 ,  C08G18/65 ,  C08G2/28 ,  C08G18/08

    CPC classification number: C08G18/10

    Abstract: A process is described for the preparation of predominantly linear polyurethane solutions which comprises(a) reacting(A) an organic diisocyanate or diisocyanate mixture optionally containing small portions of a triisocyanate with(B) one or more polyhydroxyl compounds which are predominantly bifunctional and generally have molecular weights of from about 400 to 5000 and(C) optionally one or more chain lengthening agents having at least two isocyanate reactive hydrogen atoms and molecular weights of from about 32 to 399, wherein the proportion of isocyanate groups to the number of isocyanate-reactive hydrogen atoms is in the range of from about 0.9:1 to 1:0.9, and(b) when the polyurethane formed has reached the required viscosity, adding a monofunctional, low molecular weight oxime having a molecular weight of from about 73 to 325, preferably butanone oxime, to the reaction mixture as chain breaking agent in a quantity equivalent to or in excess of the equivalents of unreacted isocyanate groups.The new chain breaking agents are simple compounds which effect rapid chain breaking and have no undesirable side effects as regards subsequent breakdown of the chains and even enable further synthesizing reactions to be carried out if desired, for example with diamines.

    Abstract translation: 描述了用于制备主要为线性聚氨酯溶液的方法，其包括（a）使（A）任选地含有少量三异氰酸酯的有机二异氰酸酯或二异氰酸酯混合物与（B）一种或多种主要是双官能的多羟基化合物反应，并且通常具有 约400至5000的分子量和（C）任选的一种或多种具有至少两个异氰酸酯反应性氢原子和分子量为约32至399的链延长剂，其中异氰酸酯基团与异氰酸酯反应性数目的比例 氢原子在约0.9:1至1:0.9的范围内，和（b）当所形成的聚氨酯达到所需粘度时，加入分子量为约73至325的单官能低分子量肟， 优选丁酮肟作为断链剂的反应混合物，其量等于或超过未反应的异氰酸酯的当量 anate组。 新的断链剂是简单的化合物，其能够快速断链，并且对链的随后分解没有不期望的副作用，并且甚至能够进一步合成反应，如果需要，例如用二胺进行。

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