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    • 4. 发明申请
    • High Molecular Weight Polycarbodiimide And Method Of Producing Same
    • 高分子量聚碳化二亚胺及其生产方法
    • US20140221580A1
    • 2014-08-07
    • US14241211
    • 2012-08-29
    • Mohamed Bouguettaya
    • Mohamed Bouguettaya
    • C08G18/02
    • B05D1/02B05D3/02C08G18/025C08G18/7621C08G2105/06C09D179/08
    • A method of producing the high molecular weight polycarbodiimide comprises the steps of providing an isocyanate component comprising toluene diisocyanate (TDI), a carbodiimidization catalyst, and a first solvent. The method further comprises the step of polymerizing the isocyanate component in the first solvent and in the presence of the carbodiimidization catalyst to produce a reaction mixture including at least one carbodiimide compound and the first solvent. In addition, the method comprises the step of combining a second solvent and the reaction mixture. Finally, the method comprises the step of polymerizing the at least one carbodiimide compound for a second period of time in the first and second solvents and in the presence of the carbodiimidization catalyst to produce the high molecular weight polycarbodiimide.
    • 制备高分子量聚碳化二亚胺的方法包括提供包含甲苯二异氰酸酯(TDI),碳二亚胺化催化剂和第一溶剂的异氰酸酯组分的步骤。 该方法还包括在第一溶剂中和在碳二亚胺化催化剂存在下聚合异氰酸酯组分以产生包含至少一种碳二亚胺化合物和第一溶剂的反应混合物的步骤。 此外,该方法包括组合第二溶剂和反应混合物的步骤。 最后,该方法包括在第一和第二溶剂中和在碳二亚胺化催化剂的存在下使至少一种碳二亚胺化合物聚合第二时间段以产生高分子量聚碳化二亚胺的步骤。
    • 6. 发明申请
    • WATER DISPERSIBLE RESIN, TWO-COMPONENT THERMOSETTING RESIN COMPOSITION, AND METHOD OF PRODUCING THE SAME
    • 水分散树脂,双组分热固性树脂组合物及其生产方法
    • US20090234074A1
    • 2009-09-17
    • US12348384
    • 2009-01-05
    • Daisuke SegawaTeruzo ToiEiji UedaShinya FurutaTeruaki Kuwajima
    • Daisuke SegawaTeruzo ToiEiji UedaShinya FurutaTeruaki Kuwajima
    • C08L75/00C08F18/02C08F20/04
    • C08G18/025C08G18/0823C08G18/12C08G18/283C08G18/44C08G18/4829C08G18/6254C08G18/6659C08G18/706C09D175/04C08G18/3271
    • The water dispersible resin of the present invention is contained in a base component of a two-component thermosetting resin composition. The water dispersible resin is prepared by dispersing a solvent resin in water, which solvent resin is obtained by solution polymerization, carried out in two or more stages, of a monomer mixture containing a polyfunctional monomer, an acid group-containing monomer, and a hydroxyl group-containing monomer, the polyfunctional monomer having a plurality of vinyl groups in its single molecule. The monomer mixture contains the polyfunctional monomer by not less than 0.1% by weight but not more than 3% by weight, and the water dispersible resin thus obtained has an acid value of solid content of not less than 10 mgKOH/g but not more than 45 mgKOH/g, a hydroxyl value of solid content of not less than 50 but not more than 200, and a viscosity of not less than 50 mPa·s but not more than 10,000 mPa·s when a nonvolatile content is 45% by weight. This makes it possible to provide a two-component thermosetting resin composition, which is easily dealt with, formed into a coating film having an excellent appearance, and further, has an excellent pot life.
    • 本发明的水分散性树脂包含在双组分热固性树脂组合物的基础组分中。 水分散性树脂通过将溶剂树脂分散在水中制备,该溶剂树脂通过溶液聚合获得,分两个或多个阶段进行,所述单体混合物含有多官能单体,含酸基单体和羟基 含有单体的多官能单体在其单分子中具有多个乙烯基。 单体混合物含有不少于0.1重量%但不多于3重量%的多官能单体,所得到的水分散性树脂的固含量的酸值不小于10mgKOH / g,但不大于 45mgKOH / g,当不挥发物含量为45重量%时,固体含量的羟值不小于50但不大于200,粘度不小于50mPa.s但不大于10,000mPa.s 。 这使得可以提供易于处理的双组分热固性树脂组合物,其形成为具有优异外观的涂膜,并且还具有优异的适用期。
    • 8. 发明申请
    • Process for preparation of stable polycarbodiimide dispersions in water, which are free of organic solvents and may be used as crosslinking agent
    • 在水中制备稳定的聚碳二亚胺分散体的方法,其不含有机溶剂并可用作交联剂
    • US20060106189A1
    • 2006-05-18
    • US11320189
    • 2005-12-28
    • Laurentius HesselmansAndries DerksenJacob Munneke
    • Laurentius HesselmansAndries DerksenJacob Munneke
    • C08G18/70
    • C08G18/025C08G18/283
    • A process for the preparation of stable aqueous polycarbodiimide dispersions, to be used as crosslinking agent, which are free of organic solvents is described. Sid process is characterized in: reacting a polyisocyanate in the presence of a carbodiimide catalyst to form a polycarbodiimide, terminating and/or chain extending the polycarbodiimide chain by the addition of formation dispersion of the resulting compound in water, wherein pH is adjusted to a value between 9 and 14 by the addition of a base and/or a buffer to the water used for the dispersion and/or to the obtained aqueous dispersion. According to the present process said terminating or chain extending with the compound containing a hydrophylic group and one or more amine functions may also occur during or after the dispersion of the polycarboiimide in water. The preferred pH of the polycarbodiimide dispersions is between 11 and 13. Furthermore the invention related to a coating mixture comprising the polycarbodiimide dispersions obtained by the invention as crosslinking agent and an aqueous resin containing carboxylic acid functions. Finally the invention comprises cured material obtained by applying said coating mixture to a substrate, and evaporating the water.
    • 描述了用作制备用作交联剂的稳定的聚碳化二亚胺分散体水溶液的方法,其不含有机溶剂。 Sid方法的特征在于:在碳二亚胺催化剂的存在下使多异氰酸酯反应形成聚碳二亚胺,通过将所得化合物的形成分散体加入水中终止和/或链延伸聚碳二亚胺链,其中将pH调节至一个值 通过向用于分散体的水和/或所获得的水分散体中加入碱和/或缓冲剂在9和14之间。 根据本发明方法,在含有亲水基团和一种或多种胺官能团的化合物中延伸的终止或链可以在聚碳酰亚胺在水中分散期间或之后发生。 聚碳二亚胺分散体的优选pH为11-13。此外,本发明涉及包含本发明获得的作为交联剂的聚碳二亚胺分散体和含有羧酸官能团的含水树脂的涂料混合物。 最后,本发明包括通过将所述涂料混合物施加到基材上并蒸发水而获得的固化材料。