POROUS/NANOPOROUS PHT
    65.
    发明申请

    公开(公告)号:US20160108176A1

    公开(公告)日:2016-04-21

    申请号:US14516117

    申请日:2014-10-16

    IPC分类号: C08G73/06 C08K7/06

    摘要: Methods of forming nanoporous materials are described herein that include forming a polymer network with a chemically removable portion. The chemically removable portion may be polycarbonate polymer that is removable on application of heat or exposure to a base, or a polyhexahydrotriazine (PHT) or polyhemiaminal (PHA) polymer that is removable on exposure to an acid. The method generally includes forming a reaction mixture comprising a formaldehyde, a solvent, a primary aromatic diamine, and a diamine having a primary amino group and a secondary amino group, the secondary amino group having a base-reactive substituent, and heating the reaction mixture to a temperature of between about 50 deg C. and about 150 deg C. to form a polymer. Removing any portion of the polymer results in formation of nanoscopic pores as polymer chains are decomposed, leaving pores in the polymer matrix.

    Amino resin composite particle and method of producing same
    68.
    发明授权
    Amino resin composite particle and method of producing same 失效
    氨基树脂复合颗粒及其制备方法

    公开(公告)号:US07378153B2

    公开(公告)日:2008-05-27

    申请号:US10230409

    申请日:2002-08-29

    IPC分类号: B32B1/00

    摘要: The present invention provides an amino resin composite particle in which an inorganic compound is fixed (firmly adhered) on a surface of an amino resin particle, for example, an amino resin composite particle, in which a child particle made of the inorganic compound is fixed on a mother particle made of the amino resin particle, and a method of easily and inexpensively producing the amino resin composite particle. After an amino compound such as benzoguanamine is reacted with formaldehyde, so as to prepare a reaction mixture containing an amino resin precursor to be the mother particle, an emulsion of the reaction mixture and an aqueous solution of an emulsifier, and an aqueous dispersion of the inorganic compound, such as silica powder, to be the child particle are mixed with a shear force application, so as to emulsify them to have an emulsion thereof. The emulsion is hardened by adding a catalyst. The thus obtained amino resin composite particle has a firm-adhering ratio of the inorganic compound of 10% or more.

    摘要翻译: 本发明提供一种氨基树脂复合颗粒,其中将无机化合物固定(牢固地粘合)在氨基树脂颗粒的表面上,例如氨基树脂复合颗粒,其中由无机化合物制成的儿童颗粒是固定的 在由氨基树脂颗粒制成的母体颗粒上,以及容易且廉价地制备氨基树脂复合颗粒的方法。 在将氨基化合物如苯并胍胺与甲醛反应之后,制备含有作为母体的氨基树脂前体的反应混合物,反应混合物的乳液和乳化剂的水溶液和水分散体 将作为子粒子的无机化合物如二氧化硅粉末与剪切力混合,以使其乳化成具有其乳液。 通过加入催化剂使乳液硬化。 由此得到的氨基树脂复合粒子的无机化合物的固着比例为10%以上。

    Method of preparing co-polymer particles

    公开(公告)号:US06528582B2

    公开(公告)日:2003-03-04

    申请号:US09821034

    申请日:2001-03-30

    IPC分类号: C08L6124

    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.