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1. 发明授权

US6096805A Stable and high solids aqueous dispersions of blocked polyisocyanates 失效
公开(公告)号：US6096805A
公开(公告)日：2000-08-01
申请号：US958398
申请日：1997-10-29
申请人： Hartwig Lange , Klaus Janischewski , Dirk Reichel
发明人： Hartwig Lange , Klaus Janischewski , Dirk Reichel
IPC分类号： C08G18/00 , C07C263/18 , C08G18/70 , C08G18/72 , C08G18/80 , C09D5/02 , C09D175/00
CPC分类号： C07C263/18 , C08G18/348 , C08G18/706 , C08G18/721 , C08G18/792 , C08G18/8077 , C09D175/04
摘要： A stable and high-solids aqueous dispersion of blocked isocyanates, containing auxiliary solvent, is prepared by (1) preparing a solution of a polyisocyanate mixture of from 20-70% by weight of a blocked, hydrophilically modified polyisocyanate (A) and from 30-80% by weight of a blocked, hydrophobic polyisocyanate (B) in an auxiliary solvent (G) and (2) adding water to this solution, with intensive mixing, in an amount which is such as to give a two-phase system comprising a disperse polyisocyanate phase and a continuous, aqueous phase containing auxiliary solvent. In a preferred embodiment of the invention dispersions are prepared which are virtually free from auxiliary solvent, by first adding a portion of water to the solution (1), substantially removing the auxiliary solvent with intensive mixing and then adding a second portion of water with intensive mixing to the mixture comprising the polyisocyanates (A) and (B) and the first portion of water.

2. 发明授权

US06727341B2 Stable and high solids aqueous dispersions of blocked polyisocyanates 失效
标题翻译：封闭多异氰酸酯的稳定和高固体含水分散体
公开(公告)号：US06727341B2
公开(公告)日：2004-04-27
申请号：US09982237
申请日：2001-10-19
申请人： Hartwig Lange , Klaus Janischewski , Dirk Reichel
发明人： Hartwig Lange , Klaus Janischewski , Dirk Reichel
IPC分类号： C08G1880
CPC分类号： C07C263/18 , C08G18/348 , C08G18/706 , C08G18/721 , C08G18/792 , C08G18/8077 , C09D175/04 , C07C265/14
摘要： A stable and high-solids aqueous dispersion of blocked isocyanates, containing auxiliary solvent, is prepared by (1) preparing a solution of a polyisocyanate mixture of from 20-70% by weight of a blocked, hydrophilically modified polyisocyanate (A) and from 30-80% by weight of a blocked, hydrophobic polyisocyanate (B) in an auxiliary solvent (G) and (2) adding water to this solution, with intensive mixing, in an amount which is such as to give a two-phase system comprising a disperse polyisocyanate phase and a continuous, aqueous phase containing auxiliary solvent. In a preferred embodiment of the invention dispersions are prepared which are virtually free from auxiliary solvent, by first adding a portion of water to the solution (1), substantially removing the auxiliary solvent with intensive mixing and then adding a second portion of water with intensive mixing to the mixture comprising the polyisocyanates (A) and (B) and the first portion of water.
摘要翻译：含有辅助溶剂的封闭异氰酸酯的稳定且高固含量的水分散体是通过（1）制备20-70重量％的封端的亲水改性多异氰酸酯（A）和30重量％的多异氰酸酯混合物 -80重量％的在助溶剂（G）中的封闭的疏水性多异氰酸酯（B）和（2）以强烈混合的方式向该溶液中加入水，其量使得产生两相系统，其包含分散的多异氰酸酯相和含有辅助溶剂的连续的水相。在本发明的一个优选实施方案中，通过首先向溶液（1）中加入一部分水，基本上除去辅助溶剂，同时强烈混合，然后加入第二部分水，制备基本上不含辅助溶剂的分散体与包含多异氰酸酯（A）和（B）的混合物和第一部分水混合。

3. 发明授权

US06348521B1 Stable and high solids aqueous dispersions of blocked polyisocyanates 失效
公开(公告)号：US06348521B1
公开(公告)日：2002-02-19
申请号：US09567979
申请日：2000-05-10
申请人： Hartwig Lange , Klaus Janischewski , Dirk Reichel
发明人： Hartwig Lange , Klaus Janischewski , Dirk Reichel
IPC分类号： C08G1880
CPC分类号： C07C263/18 , C08G18/348 , C08G18/706 , C08G18/721 , C08G18/792 , C08G18/8077 , C09D175/04 , C07C265/14
摘要： A stable and high-solids aqueous dispersion of blocked isocyanates, containing auxiliary solvent, is prepared by (1) preparing a solution of a polyisocyanate mixture of from 20-70% by weight of a blocked, hydrophilically modified polyisocyanate (A) and from 30-80% by weight of a blocked, hydrophobic polyisocyanate (B) in an auxiliary solvent (G) and (2) adding water to this solution, with intensive mixing, in an amount which is such as to give a two-phase system comprising a disperse polyisocyanate phase and a continuous, aqueous phase containing auxiliary solvent. In a preferred embodiment of the invention dispersions are prepared which are virtually free from auxiliary solvent, by first adding a portion of water to the solution (1), substantially removing the auxiliary solvent with intensive mixing and then adding a second portion of water with intensive mixing to the mixture comprising the polyisocyanates (A) and (B) and the first portion of water.

4. 发明授权

US06048926A Aqueous two component polyurethane coatings, preparation thereof and use thereof 失效
标题翻译：水性双组分聚氨酯涂料，其制备及其用途
公开(公告)号：US06048926A
公开(公告)日：2000-04-11
申请号：US959655
申请日：1997-10-28
申请人： Klaus Janischewski , Dirk Reichel
发明人： Klaus Janischewski , Dirk Reichel
IPC分类号： B05D7/02 , B05D7/06 , B05D7/14 , B05D7/24 , C08G18/40 , C08G18/70 , C09D175/04 , C08J3/00 , C08K3/20 , C08L75/00 , C09K3/00
CPC分类号： C08G18/706
摘要： A composition containing an unblocked monomeric diisocyanate finely dispersed an aqueous dispersion of at least one organic polyhydroxy compound. The composition may be used to prepare aqueously disperse two component polyurethane coatings where the diisocyanate functions as a curing agent and the polyhydroxy compound serves as a binder agent. In the composition, the ratio of hydroxyl groups in the polyhydroxy compound to the isocyanate groups in the diisocyanate is 0 5:1 to 5:1. The composition may be used to apply polyurethane coatings to substrates.
摘要翻译：含有未封端的单体二异氰酸酯的组合物，其精细分散有至少一种有机多羟基化合物的水性分散体。组合物可用于制备高分散性双组分聚氨酯涂料，其中二异氰酸酯用作固化剂，多羟基化合物用作粘合剂。在组合物中，多羟基化合物中的羟基与二异氰酸酯中的异氰酸酯基的比例为0：5：1至5：1。该组合物可用于将聚氨酯涂料施用于基材。

5. 发明授权

US5919859A Aqueous resin dispersions 失效
标题翻译：水性树脂分散体
公开(公告)号：US5919859A
公开(公告)日：1999-07-06
申请号：US953247
申请日：1997-10-17
申请人： Martina Ortelt , Hartwig Lange , Klaus Janischewski
发明人： Martina Ortelt , Hartwig Lange , Klaus Janischewski
IPC分类号： C08L75/04 , C08G18/08 , C08G18/54 , C08G18/64 , C08G18/79 , C08G18/80 , C08J3/00 , C08K3/20 , C08L75/00
CPC分类号： C08G18/0804 , C08G18/54 , C08G18/8048 , C08G2170/80
摘要： Aqueous resin dispersions obtainable by reaction, or partial reaction, ofI. hydroxyl-containing ketone, ketone/aldehyde and/or urea/aldehyde resins or hydrogenated follow-on products thereof andII. at least one hydrophilically modified isocyanate and/or polyisocyanate having at least one free NCO group, obtained by reacting at least one isocyanate and/or polyisocyanate with compounds which in addition to the hydrophilic or potentially hydrophilic group have at least one isocyanate-reactive function and which possess a hydrogen which is active according to the Zerewitinoff test, and which also possess at least one hydrophilic group and/or one potentially hydrophilic group,and then combining the neutralized resin with water.
摘要翻译：可通过反应或部分反应获得含I.羟基酮，酮/醛和/或脲/醛树脂或其氢化后续产物的水性树脂分散体和II。至少一种具有至少一种游离NCO基团的亲水改性的异氰酸酯和/或多异氰酸酯，其通过使至少一种异氰酸酯和/或多异氰酸酯与除了亲水或潜在亲水基团之外的至少一种异氰酸酯反应性官能团的化合物反应获得，其具有根据Zerewitinoff试验具有活性的氢，并且还具有至少一个亲水基团和/或一个潜在亲水基团，然后将中和的树脂与水组合。

6. 发明授权

US07033522B2 Pulverulent, water-dispersible, blocked polyisocyanate adducts, a process for the preparation and their use 失效
公开(公告)号：US07033522B2
公开(公告)日：2006-04-25
申请号：US09963423
申请日：2001-09-27
申请人： Klaus-Peter Jonderko , Klaus Janischewski , Lutz Mindach
发明人： Klaus-Peter Jonderko , Klaus Janischewski , Lutz Mindach
IPC分类号： C07C269/02 , C07C271/02 , C07C271/06 , C07C273/00 , C07C275/00
CPC分类号： C08G18/8077 , C08G18/6254 , C08G18/706 , C08G18/8048 , C08G18/8074
摘要： A blocked polyisocyanate adduct including 5 to 95% by weight of at least one isocyanate component having at least one NCO group, the isocyanate component selected from the group consisting of aliphatic, cycloaliphatic and aromatic isocyanates, wherein the isocyanate has an average molecular weight of up to 1000 g/mol and an average NCO functionality of 2–4; 5 to 70% by weight of at least one hydrophilicizing component containing at least one group which is reactive toward the at least one NCO group; at least one blocking agent for blocking from 95 to 100% of the NCO groups which do not react with the hydrophilicizing component; and up to 15% by weight of at least one neutralizing agent.

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