Polyisocyanate mixtures, a process for their production and their use
for the production of polyurethanes
    21.
    发明授权
    Polyisocyanate mixtures, a process for their production and their use for the production of polyurethanes 失效
    多异氰酸酯混合物,其生产方法及其用于生产聚氨酯的方法

    公开(公告)号:US5464921A

    公开(公告)日:1995-11-07

    申请号:US156202

    申请日:1993-11-22

    摘要: The present invention relates to polyisocyanate mixtures which are solid below 40.degree. C. and liquid above 125.degree. C. and which havea) an average isocyanate functionality of at least 2.1,b) a content of free isocyanate groups bonded to tertiary (cyclo)aliphatic carbon atoms (calculated as NCO; molecular weight=42) of 5 to 22 wt. %,c) a urethane group content calculated as --NH--CO--O--; molecular weight=59) of 2 to 30 wt. %,d) an isocyanurate group content (calculated as C.sub.3 N.sub.3 O.sub.3 ; molecular weight=126) of 0 to 30 wt. % ande) a carboxylic acid ester group content (calculated as --CO--O--; molecular weight=44) of 0 to 25 wt. % and/orf) a carbonate group content (calculated as --O--CO--O--; molecular weight=60) of from 0 to 34 wt. %with the proviso that the total amount of ester groups e) and carbonate groups f) is at least 2 wt. %.The present invention also relates to a process for the production of these polyisocyanate mixtures and to their use for the production of polyurethanes, in particular as the crosslinking component in heat-curable two-component polyurethane powder coatings for coating heat-resistant substrates.

    摘要翻译: 本发明涉及固体低于40℃和高于125℃的液体的多异氰酸酯混合物,其具有a)平均异氰酸酯官能度至少为2.1,b)结合到叔(环)的游离异氰酸酯基团的含量, 脂肪族碳原子(以NCO计算;分子量= 42)为5〜22重量份。 %,c)以-NH-CO-O-计算的氨基甲酸酯基含量; 分子量= 59)为2〜30wt。 %,d)异氰脲酸酯基含量(以C3N3O3计算;分子量= 126)为0〜30wt。 %和e)羧酸酯基含量(以-CO-O-计算;分子量= 44)为0〜25重量%。 %和/或f)0至34重量%的碳酸酯基含量(以-O-CO-O-计算;分子量= 60) %,条件是酯基e)和碳酸酯基团f)的总量为至少2重量%。 %。 本发明还涉及生产这些多异氰酸酯混合物的方法及其用于生产聚氨酯的方法,特别是作为用于涂覆耐热基材的可热固化双组分聚氨酯粉末涂料中的交联组分。

    Isocyanates containing uretdione groups
    22.
    发明授权
    Isocyanates containing uretdione groups 有权
    含有脲二酮基团的异氰酸酯

    公开(公告)号:US07098289B2

    公开(公告)日:2006-08-29

    申请号:US10613457

    申请日:2003-07-03

    IPC分类号: C08G18/20

    摘要: The invention relates to novel compounds containing uretdione groups, to a process for preparing them by dimerizing aliphatic and/or cycloaliphatic isocyanates containing exclusively secondary and/or tertiary isocyanate groups and also to the use of uretdione polyisocyanates obtainable by this process from diisocyanates containing exclusively secondary and/or tertiary isocyanate groups as a starting component for polyurethane polymers, in particular as an isocyanate component in the preparation of uretdione powder coating crosslinkers.

    摘要翻译: 本发明涉及含有脲二酮基团的新化合物,其通过二元化仅含有仲和/或叔异氰酸酯基团的脂族和/或脂环族异氰酸酯制备它们的方法,还涉及使用通过该方法获得的脲二酮多异氰酸酯,该二异氰酸酯仅含有二级 和/或叔异氰酸酯基团作为聚氨酯聚合物的起始组分,特别是作为脲二酮粉末涂料交联剂制备中的异氰酸酯组分。

    Polyether-modified polyisocyanate mixtures having improved dispersibility in water
    26.
    发明授权
    Polyether-modified polyisocyanate mixtures having improved dispersibility in water 有权
    具有改善的在水中的分散性的聚醚改性的多异氰酸酯混合物

    公开(公告)号:US06426414B1

    公开(公告)日:2002-07-30

    申请号:US09312180

    申请日:1999-05-14

    IPC分类号: C07C27166

    摘要: The present invention relates to water dispersible polyisocyanate mixtures prepared from aliphatic, cycloaliphatic, araliphatic and/or aromatic diisocyanates and having a) an average isocyanate functionality of at least 2.0, b) a content of 5.0 to 25.0 wt. %, based on resin solids, of isocyanate groups (calculated as NCO; molecular weight=42) and c) a content of 2 to 50 wt. %, based on resin solids, of ethylene oxide units calculated as C2H2O; molecular weight 44) incorporated within polyether chains containing an average of 5 to 35 ethylene oxide units, wherein at least 60 mole % of the polyether chains are connected via allophanate groups to two polyisocyanate molecules which are each prepared from at least two diisocyanate molecules. The present invention also relates to a process for the preparation of these water dispersible polyisocyanate.

    摘要翻译: 本发明涉及由脂族,脂环族,芳脂族和/或芳族二异氰酸酯制备的水分散性多异氰酸酯混合物,并且具有至少2.0的平均异氰酸酯官能度,b)5.0至25.0重量%的含量。 %,基于树脂固体的异氰酸酯基团(以NCO计算;分子量= 42),和c)2〜50重量%的含量。 %,基于树脂固体,以C 2 H 2 O计算的环氧乙烷单元; 分子量44),其包含平均5至35个环氧乙烷单元的聚醚链,其中至少60摩尔%的聚醚链通过脲基甲酸酯基团连接到两个由至少两个二异氰酸酯分子制备的多异氰酸酯分子。 本发明还涉及制备这些水分散性多异氰酸酯的方法。

    Uretdione powder coating cross-linking agents having a low melt viscosity
    27.
    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

    摘要: 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.

    摘要翻译: 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。

    Polyurethane powder coating compositions that do not split off blocking agents and have a low stoving temperature
    29.
    发明申请
    Polyurethane powder coating compositions that do not split off blocking agents and have a low stoving temperature 有权
    聚氨酯粉末涂料组合物不会分解阻断剂并且具有低烘烤温度

    公开(公告)号:US20050222364A1

    公开(公告)日:2005-10-06

    申请号:US11094589

    申请日:2005-03-30

    摘要: The present invention relates to polyurethane powder coating compositions containing A) a hydroxyl-functional binder component, which is solid below 40° C. and liquid above 130° C., has a content of carboxyl groups (calculated as COOH; molecular weight 45) of 0.5 to 2.0 wt. %, and contains at least one polymeric polyol having an OH number of 15 to 200 mg KOH/g and a number average molecular weight of 400 to 10,000 and B) a polyaddition compound which contains uretdione groups and optionally free isocyanate groups, is solid below 40° C. and liquid above 125° C., and is prepared from aliphatic and/or cycloaliphatic diisocyanates, C) at least one zinc compound as hardening catalyst, and D) a compound which has a number average molecular weight of 200 to 5000 and contains groups reactive to carboxyl groups, wherein i) components A) and B) are present in amounts such that 0.8 to 2.2 isocyanate groups of component B) are present for each hydroxyl group of component A), ii) the term isocyanate groups of component B) means the sum of isocyanate groups present in dimeric form as uretdione groups and free isocyanate groups, iii) components A) and D) are present in amounts such that 0.8 to 2.0 groups of component D) which are reactive to carboxyl groups are present for each carboxyl group of component A), iv) when aliphatic and/or cycloaliphatic dicarboxylic acids having 4 to 20 carbon atoms and/or aliphatic hydroxyl carboxylic acids having 4 to 18 carbon atoms are present as component A2), the amount of components A2) and D) in the total amount of components A), B) and D) is less than 10 wt. % and v) the amount of component C) in the total amount of components A) to E) is 0.05 to 5 wt. %.

    摘要翻译: 本发明涉及聚氨酯粉末涂料组合物,其包含A)羟基官能粘合剂组分,其固体低于40℃,液体高于130℃具有羧基含量(按COOH计算;分子量45) 为0.5〜2.0重量% %,并且包含至少一种羟值为15-200mg KOH / g和数均分子量为400至10,000的聚合多元醇,以及B)含有脲二酮基团和任选的游离异氰酸酯基团的加聚化合物,其固体在下面 40℃,液体高于125℃,由脂族和/或脂环族二异氰酸酯制备,C)至少一种锌化合物作为硬化催化剂,和D)数均分子量为200-5000的化合物 并且含有与羧基反应的基团,其中i)组分A)和B)存在的量使得组分B)的每个羟基存在组分B)的0.8至2.2个异氰酸酯基团,ii)术语异氰酸酯基团 组分B)表示以二聚体形式存在的异氰酸酯基团作为脲二酮基团和游离异氰酸酯基团的总和,iii)组分A)和D)的存在量使得与羧基反应的0.8至2.0组的组分D) 推测 t)组分A)中的每个羧基,iv)当具有4至20个碳原子的脂族和/或脂环族二羧酸和/或具有4至18个碳原子的脂肪族羟基羧酸作为组分A2)存在时,组分的量 A2)和D)组分A),B)和D)的总量小于10wt。 %和v)组分A)至E)的总量中组分C)的量为0.05至5重量% %。

    Preparation of polyisocyanates containing uretdione groups
    30.
    发明申请
    Preparation of polyisocyanates containing uretdione groups 有权
    含有脲二酮基团的多异氰酸酯的制备

    公开(公告)号:US20050113551A1

    公开(公告)日:2005-05-26

    申请号:US10990558

    申请日:2004-11-17

    摘要: A method of dimerizing isocyanates including reacting the isocyanates in the presence of phosphines containing at least one directly phosphorus-attached bicyclic, cycloaliphatic radical. The polyisocyanate compositions obtained as described above can be used in mouldings, coating materials, adhesives, sealants or adjuvants that further include the polyisocyanate compositions and one or more materials selected from antioxidants, light stabilizers, pigments, fillers, additives, levelling assistance, defoamers and matting agents. The coating materials, adhesives or sealants can be used to coat substrates.

    摘要翻译: 二异氰酸酯的方法,包括在含有至少一个直接与磷连接的二环,脂环族基团的膦存在下使异氰酸酯反应。 如上所述获得的多异氰酸酯组合物可用于进一步包括多异氰酸酯组合物的模制品,涂料,粘合剂,密封剂或助剂,以及选自抗氧化剂,光稳定剂,颜料,填料,添加剂,流平助剂,消泡剂和 消光剂 涂料,粘合剂或密封剂可用于涂覆基材。