公开(公告)号：US06245853B1

公开(公告)日：2001-06-12

申请号：US09571845

申请日：2000-05-16

申请人： Kwok Tang ,  Guomin Bian ,  Leena Matilainen ,  Sinikka Ingelin

发明人： Kwok Tang ,  Guomin Bian ,  Leena Matilainen ,  Sinikka Ingelin

IPC分类号： C08L6124

CPC分类号： C08J3/12 ,  C08G12/32 ,  C08G12/36 ,  C08G12/40 ,  C08J2361/20

摘要： A one-step, in-situ, process for producing a high solids content emulsion or dispersion of partially or totally crosslinked urea formaldehyde or melamine formaldehyde resin droplets or particles, by forming a reaction mixture of (i) aqueous formaldehyde (formalin), (ii) at least one water-soluble protective colloid, (iii) water and (iv) optionally a surfactant, and mixing the reaction mixture in a reaction vessel; optionally adjusting the initial pH of the reaction mixture according to a desired value as needed; adding (a) urea, substituted urea, or a mixture thereof, or (b) melamine, substituted melamine, or a mixture thereof, to the reaction mixture; and heating the reaction mixture to a temperature at which condensation takes place between the (a) urea, substituted urea, or the mixture thereof, or (b) melamine substituted melamine, or the mixture thereof, and the formaldehyde to form a urea formaldehyde or melamine formaldehyde resin, and holding the reaction mixture at that temperature or a higher temperature, under mixing, for a period of time sufficient to achieve a desired degree of crosslinking in said urea formaldehyde or melamine formaldehyde resin; and cooling the reaction mixture. The droplet or particle size of the resulting resin dispersion can be controlled and adjusted by way of the present technique to the application requirements.

摘要翻译： 通过形成（i）甲醛水溶液（福尔马林）（（甲醛）），（甲醛）水溶液的反应混合物，生产高固体含量乳液或部分或全部交联的脲甲醛或三聚氰胺甲醛树脂液滴或颗粒的分散体的一步原位方法， ii）至少一种水溶性保护胶体，（iii）水和（iv）任选的表面活性剂，并将反应混合物混合在反应容器中; 任选地根据需要根据期望的值调节反应混合物的初始pH; 将（a）脲，取代的脲或其混合物，或（b）三聚氰胺，取代的三聚氰胺或其混合物加入到反应混合物中; 将反应混合物加热至（a）尿素，取代的脲或其混合物之间发生冷凝的温度，或（b）三聚氰胺取代的三聚氰胺或其混合物和甲醛形成脲甲醛或 三聚氰胺甲醛树脂，并将该反应混合物在该温度或更高温度下混合，在足以在所述脲甲醛或三聚氰胺甲醛树脂中达到所需程度的交联的时间; 并冷却反应混合物。 所得到的树脂分散体的液滴或颗粒尺寸可以通过本技术对应用要求进行控制和调节。

公开(公告)号：US06245882B1

公开(公告)日：2001-06-12

申请号：US09388383

申请日：1999-09-01

申请人： Leena Matilainen ,  Guomin Bian ,  Claude Ostiguy ,  Rick Cheng ,  Matti Satuli ,  Kari Leskinen ,  Kwok Tang

发明人： Leena Matilainen ,  Guomin Bian ,  Claude Ostiguy ,  Rick Cheng ,  Matti Satuli ,  Kari Leskinen ,  Kwok Tang

IPC分类号： C08F614

CPC分类号： C08L61/06 ,  C08G8/10 ,  C08L2666/26 ,  C08L2666/04

摘要： Method for the manufacture of a phenolic resin emulsion and/or dispersion, wherein an aldehyde, a phenolic compound and an alkaline catalyst are allowed to react at a temperature of 40-100° C. until a desired degree of condensation is achieved, and the pH of the resin is adjusted to a value below 9 using an acid in the presence of a surface active agent or a mixture thereof at a temperature below 100° C. and a phenolic resin emulsion and/or dispersion is obtained providing a colorless or light-colored glue line or surface when cured.

摘要翻译： 制备酚醛树脂乳液和/或分散体的方法，其中醛，酚类化合物和碱性催化剂在40-100℃的温度下反应，直到达到所需的冷凝程度，并且 使用酸在表面活性剂或其混合物的存在下，在低于100℃的温度下将树脂的pH调节至低于9的值，得到酚醛树脂乳液和/或分散体，提供无色或浅色 固化后的彩色胶线或表面。

公开(公告)号：US06528582B2

公开(公告)日：2003-03-04

申请号：US09821034

申请日：2001-03-30

申请人： Kwok Tang ,  Guomin Bian ,  Leena Matilainen ,  Sinikka Ingelin

发明人： Kwok Tang ,  Guomin Bian ,  Leena Matilainen ,  Sinikka Ingelin

IPC分类号： C08L6124

CPC分类号： C08G12/32 ,  C08G12/36 ,  C08G12/40 ,  C08J3/12 ,  C08J2361/20

摘要： A one-step, in-situ, process for producing a high solids content emulsion or dispersion of partially or totally crosslinked urea formaldehyde (UF), melamine formaldehyde (MF), or melamine urea formaldehyde (MUF) resin droplets or particles, by forming a reaction mixture of (i) aqueous formaldehyde (formalin), (ii) at least one water-soluble protective colloid, (iii) water and (iv) optionally a surfactant, and mixing the reaction mixture in a reaction vessel; optionally adjusting the initial pH of the reaction mixture according to a desired value as needed; adding (i) urea or substituted urea, (ii) melamine or substituted melamine, or (iii) a mixture thereof, to the reaction mixture; and heating the reaction mixture to a temperature at which condensation takes place between the (i) urea or substituted urea, (ii) the melamine or substituted melamine, or (iii) the mixture thereof, and the formaldehyde to form a urea formaldehyde, melamine formaldehyde or melamine urea formaldehyde resin, and holding the reaction mixture at that temperature or a higher temperature, under mixing, for a period of time sufficient to achieve a desired degree of crosslinking in said urea formaldehyde, melamine formaldehyde or melamine urea formaldehyde resin; and cooling the reaction mixture. The droplet or particle size of the resulting resin dispersion can be controlled and adjusted by way of the present technique to the application requirements.