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    • 1. 发明申请
    • Melamine Container
    • 三聚氰胺容器
    • US20150252137A1
    • 2015-09-10
    • US14195918
    • 2014-03-04
    • Hsing-Yi Chen
    • Hsing-Yi Chen
    • C08G12/32
    • C08G14/10B29C43/003C08G14/08C08J3/203C08J2361/24C08J2361/28Y10T428/1397
    • A melamine container is hot pressed and contains: melamine powder material, melamine-granule basic material, bakelite powders/granules and urea powders/granules. The melamine-granule basic material is condensed from the melamine powder material so as to form granules, and the melamine-granule basic material and the melamine powder material are mixed and hot pressed together so as to produce the melamine container. Furthermore, a melamine container is hot pressed and contains at least two melamine-granule basic materials, bakelite powders/granules and urea powders/granules; wherein the at least two melamine-granule basic materials are condensed from melamine powder material so as to form granules of at least two colors, and the at least two melamine-granule basic materials are mixed and hot pressed so as to produce a melamine container.
    • 三聚氰胺容器被热压,包含:三聚氰胺粉末材料,三聚氰胺颗粒基材,酚醛粉/颗粒和尿素粉/颗粒。 三聚氰胺颗粒基础材料从三聚氰胺粉末材料中冷凝以形成颗粒,并将三聚氰胺颗粒基础材料和三聚氰胺粉末材料混合并热压在一起以制备三聚氰胺容器。 此外,三聚氰胺容器被热压并含有至少两种三聚氰胺颗粒基础材料,胶木粉/颗粒和尿素粉/颗粒; 其中所述至少两种三聚氰胺颗粒基础材料从三聚氰胺粉末材料中冷凝以形成至少两种颜色的颗粒,并且将所述至少两种三聚氰胺颗粒基材混合并热压以产生三聚氰胺容器。
    • 6. 发明授权
    • Method of producing urea-formaldehyde resin and foam having reduced
formaldehyde emission
    • 降低甲醛释放量的脲醛树脂和泡沫塑料的生产方法
    • US4267277A
    • 1981-05-12
    • US110083
    • 1980-01-07
    • Heinz L. Korf
    • Heinz L. Korf
    • C08J9/00C08K3/38C08J9/30
    • C08J9/0066C08K3/38C08J2361/24
    • A method for producing stable urea-formaldehyde polymers which have reduced aldehyde vapor emissions during their production and use is disclosed, such urea-formaldehyde polymers particularly useful in the production of urea-formaldehyde insulating foam and as adhesives in the production of plywood and particleboard. An alkali or alkaline earth metal borohydride is added to the urea-formaldehyde resin solution prior to or during cure thereof. The boroydride reacts with free formaldehyde in the resin solution or any free formaldehyde subsequently generated in the resin due to hydrolytic break down. The amount of borohydride added the resin solution should be sufficient to reduce the emission of free formaldehyde therefrom.
    • 公开了一种生产稳定的脲醛聚合物的方法,其在生产和使用期间具有降低的醛蒸汽排放,这种脲甲醛聚合物特别可用于生产脲 - 甲醛绝缘泡沫体,以及作为生产胶合板和刨花板的粘合剂。 在固化之前或期间,将碱金属或碱土金属硼氢化物加入脲醛树脂溶液中。 硼硅酸盐与树脂溶液中的游离甲醛或随后由于水解破裂而在树脂中产生的任何游离甲醛反应。 添加树脂溶液的硼氢化物的量应足以减少游离甲醛的释放。
    • 7. 发明授权
    • Process for producing stabilized high strength urea-aldehyde insulating
foams
    • 制备稳定的高强度脲醛绝缘泡沫的方法
    • US4129533A
    • 1978-12-12
    • US861170
    • 1977-12-16
    • William P. Moore, Jr.
    • William P. Moore, Jr.
    • C08G12/12C08J9/30C08L61/24C08J9/12
    • C08J9/30C08G12/12C08L61/24C08J2361/24
    • A process for producing stable urea-aldehyde polymers with high structural strength from two storable liquid ingredients. In this process, partially cured liquid urea-formaldehyde resin is reacted with an aqueous cross-linking solution comprising one or more alkyl or aryl dialdehydes containing two to eight molecular carbons and the hydrogen ion concentration needed to catalyze the completion of the reaction of the dialdehydes and the urea-formaldehyde. The process for producing urea-aldehyde polymers, having improved structural strength and reduced aldehyde vapor emission during their production and prolonged use, is especially effective for manufacturing products for the building industry, such as urea-aldehyde insulating foam, wood-filled particle board, and plywood. The increased polymer strength and the elimination of the hazardous and objectionable aldehyde odor is achieved by maintaining the molecular ratio of total aldehyde moieties to urea to about 1.8 and the molecular ratio of the aldehyde moieties in the dialdehydes to those in formaldehyde at about 0.2. The process requires that the dialdehydes be substantially contained in the cross-linking solution for system storability and long term reactivity. The hydrogen ion concentration required in the cross-linking solution is represented by a pH of about 3 and may be achieved by addition of water soluble acid or by heating the mixture and converting some aldehydes to acids.
    • 一种从两种可储存的液体成分制备具有高结构强度的稳定的脲醛聚合物的方法。 在该方法中,将部分固化的液体脲醛树脂与包含一个或多个含有2至8个分子碳的烷基或芳基二醛的水性交联溶液反应,并且催化二醛反应完成所需的氢离子浓度 和脲 - 甲醛。 在制造和长期使用时具有改进的结构强度和降低的醛蒸气排放的尿素 - 醛聚合物的制造方法对于制造建筑工业的产品尤其有效,例如脲醛绝缘泡沫,木材填充的刨花板, 和胶合板。 通过将总醛部分与尿素的分子比保持为约1.8,二醛中的醛部分与甲醛中的醛部分的分子比为约0.2来实现增加的聚合物强度和消除有害和令人反感的醛气味。 该方法要求二元醛基本上包含在交联溶液中,用于系统保存性和长期反应性。 交联溶液中所需的氢离子浓度由约3的pH表示,可通过加入水溶性酸或加热该混合物并将一些醛转化为酸来实现。
    • 8. 发明授权
    • Floral display blocks of urea-formaldehyde foam
    • 尿素 - 甲醛泡沫花卉展示块
    • US4119757A
    • 1978-10-10
    • US863602
    • 1977-12-23
    • John A. HobsonPaul K. Schilling
    • John A. HobsonPaul K. Schilling
    • A01G5/04B44C5/06C08J9/40B32B3/26B32B5/18
    • C08J9/40A01G5/04B44C5/06C08J2361/24Y10S428/907Y10S428/913Y10S521/905
    • Hydrophilic floral display foam blocks are prepared from frothed urea-formaldehyde, and wherein the urea-formaldehyde contains an alkyl-aryl sulfonate, and wherein the alkyl-aryl sulfonate has been exposed to an aqueous solution of a quaternary ammonium salt in an amount sufficient to provide at least equal molar concentrations of the quaternary ammonium salt to the alkyl-aryl sulfonate present in the foam. The urea-formaldehyde foam may also contain quantities of sodium molybdate to enhance the stability and lifetime of cut flowers retained in the foam material. Also, the urea-formaldehyde foam may contain starch to help suppress the free formaldehyde odor and help increase the biodegradability of the cured foam. The resulting foam is hydrophilic in nature, and hence is readily wetted, with the hydrophilic characteristic not adversely affecting the life of cut flowers retained therein.
    • 亲水花卉展示泡沫块由发泡的脲 - 甲醛制备,其中脲甲醛含有烷基 - 芳基磺酸盐,并且其中烷基 - 芳基磺酸盐已经暴露于季铵盐的水溶液中,其量足以 提供至少等摩尔浓度的季铵盐与泡沫中存在的烷基 - 芳基磺酸盐。 尿素 - 甲醛泡沫体还可以含有量的钼酸钠,以增强保留在泡沫材料中的切花的稳定性和使用寿命。 此外,脲甲醛泡沫可以含有淀粉以帮助抑制游离甲醛气味,并有助于提高固化泡沫的生物降解性。 所得泡沫本质上是亲水性的,因此容易润湿,亲水性能不会对保留在其中的切花的寿命产生不利影响。