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    • 6. 发明授权
    • Dispersing agents for aqueous coatings compositions
    • 水性涂​​料组合物分散剂
    • US5910556A
    • 1999-06-08
    • US915184
    • 1997-08-20
    • Christian WamprechtOswald WilmesStephan KirchmeyerJan Mazanek
    • Christian WamprechtOswald WilmesStephan KirchmeyerJan Mazanek
    • B01F17/00B01F17/52C08G18/10C08G18/28C08G18/32C08G18/48C08G18/66C09D5/00C09D5/02C09D7/45C09D175/08
    • C09D7/02B01F17/005C08G18/10C08G18/283C08G18/284C08G18/2865C08G18/2875C09D5/027
    • The present invention relates to a process for the solvent-free production of polyisocyanate addition products, which are suitable as dispersing agents for incorporating solids into aqueous coating compositions, wherein the polyisocyanate addition products have a maximum content of 1% by weight of isocyanate groups and a content of 30 to 95% by weight of ethylene oxide units (molecular weight=44) present in the polyether chains of monofunctional alcohols B), and are prepared by reactingA) a polyisocyanate component having an average NCO functionality of 1.7 to 2.5 and an NCO content of 10 to 65% by weight with one or more of the following components:B) monohydric polyether alcohols having a number average molecular weight of 150 to 5000 and an ethylene oxide content of 40 to 99.5% by weight,C) monohydric alcohols having a number average molecular weight of 32 to 5000, which are different from the alcohols of component B),D) an amine component which contains at least one tertiary amine having a molecular weight of 88 to 250 and which contains one isocyanate-reactive group andE) compounds having a number average molecular weight of 32 to 5000 and at least two isocyanate-reactive groups,The present invention also relates to the polyisocyanate addition products obtained by this process and to their use as dispersing agents incorporating solids into aqueous and/or solvent-containing coating compositions.
    • 本发明涉及一种无溶剂生产多异氰酸酯加成产物的方法,其适合作为将固体掺入水性涂料组合物中的分散剂,其中多异氰酸酯加成产物的最大含量为异氰酸酯基团的1重量% 通过使A)具有1.7〜2.5的平均NCO官能度的多异氰酸酯成分和1.7〜2.5的多异氰酸酯成分与通式(I)所示的单体官能醇B)的聚醚链中存在的30〜95重量%的环氧乙烷单元(分子量= 44) NCO含量为一种或多种以下组分的10至65重量%:B)数均分子量为150至5000且环氧乙烷含量为40至99.5重量%的一元聚醚醇,C)一元 数均分子量为32〜5000的醇,其与组分B)的醇不同,D)含有至少一个叔胺的胺组分 其分子量为88〜250,含有一个异氰酸酯反应性基团,E)数均分子量为32〜5000的化合物和至少两种异氰酸酯反应性基团。本发明还涉及多异氰酸酯加成物 通过该方法获得并用作将固体掺入含水和/或含溶剂的涂料组合物中的分散剂。
    • 8. 发明申请
    • Self-crosslinking polyurethane dispersions and a process for their preparation
    • 自交联聚氨酯分散体及其制备方法
    • US20070004856A1
    • 2007-01-04
    • US11475691
    • 2006-06-27
    • Jan MazanekDorota Greszta-FranzSebastian DorrJurgen MeixnerReinhard HalpaapHelmut MullerOlaf FleckHeino Muller
    • Jan MazanekDorota Greszta-FranzSebastian DorrJurgen MeixnerReinhard HalpaapHelmut MullerOlaf FleckHeino Muller
    • C08G18/08
    • C08G18/8064C08G18/0823C08G18/4219C08G18/8048C08G18/807C08G18/8077C09D175/06
    • 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.
    • 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。