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9 条记录 (耗时 0.014 秒)

    Method for powder coating with electrostatic fluidized bed
    2.
    发明授权
    Method for powder coating with electrostatic fluidized bed 失效
    静电流化床粉末涂料方法

    公开(公告)号：US4689241A

    公开(公告)日：1987-08-25

    申请号：US829628

    申请日：1986-02-14

    申请人： Douglas S. Richart ,  Paul R. Horinka, Jr.

    发明人： Douglas S. Richart ,  Paul R. Horinka, Jr.

    IPC分类号： B05D1/24 ,  B05D7/22

    CPC分类号： B05D1/24

    摘要： Significant improvements in the coating characteristics of electrostatic fluidized beds are obtained by limiting the weight of the fines in the coating powder to certain maximum levels, e.g., no more than 10% by weight of minus 38 micrometer particles. The improvements include faster build rates, higher deposition weights, and deeper penetration into holes, slots or other cavities of the substrate.

    摘要翻译： 通过将涂层粉末中的细粉重量限制在某些最大水平，例如不超过10重量％的负38微米颗粒，可获得静电流化床的涂层特性的显着改进。 这些改进包括更快的构建速率，更高的沉积重量，以及更深的穿透到基板的孔，槽或其它空腔中。

    Methods and means for modifying the surfaces of polymeric solids
    3.
    发明授权
    Methods and means for modifying the surfaces of polymeric solids 失效
    用于改性聚合物固体表面的方法和方法

    公开(公告)号：US06299937B1

    公开(公告)日：2001-10-09

    申请号：US09444339

    申请日：1999-11-19

    申请人： Douglas S. Richart

    发明人： Douglas S. Richart

    IPC分类号： B05D700

    CPC分类号： B05D7/02 ,  B05D2401/90 ,  B29B9/16 ,  B29C59/00 ,  B29C71/009 ,  B29C2071/0054 ,  C08J3/203 ,  Y02P20/544

    摘要： The surfaces of particulate polymers are modified by tackifying the surfaces with a liquid that is normally a gas at room temperature. The treatment is carried out while the gas is in its supercritical range and the surfaces of the particulate polymers are at temperatures below the glass transition temperature (Tg) of the polymers. The surface modifications can include adhering solids to the surfaces, altering the surface configuration of the particles and increasing the size of the particles by controlled agglomeration.

    摘要翻译： 颗粒聚合物的表面通过在室温下通常为气体的液体增粘表面而被改性。 处理是在气体处于其超临界范围内并且颗粒聚合物的表面处于低于聚合物的玻璃化转变温度（Tg）的温度下进行的。 表面改性可以包括将固体粘附到表面，改变颗粒的表面构型并通过受控的团聚来增加颗粒的尺寸。

    Process and apparatus for the preparation of fine powders
    4.
    发明授权
    Process and apparatus for the preparation of fine powders 失效
    制备细粉的方法和装置

    公开(公告)号：US5854311A

    公开(公告)日：1998-12-29

    申请号：US669143

    申请日：1996-06-24

    申请人： Douglas S. Richart

    发明人： Douglas S. Richart

    IPC分类号： B02C17/16 ,  B02C17/18 ,  B02C4/04 ,  B02C4/00

    CPC分类号： B02C17/16 ,  B02C17/1875 ,  Y10S524/904

    摘要： Methods and means for grinding materials to fine powders in a media mill in which the materials are ground while immersed in a liquid. In the preferred embodiments, the liquid is a gas at room temperatures and pressures, the materials are resin mixtures and the fine powders are predominantly in a size range of from about 10 to about 40 micrometers. Other benefits may be achieved if the gas is in a supercritical state.

    摘要翻译： 在介质研磨机中将材料研磨成细粉末的方法和方法，其中材料在浸入液体中被研磨。 在优选的实施方案中，液体是在室温和压力下的气体，材料是树脂混合物，细粉末主要在约10至约40微米的尺寸范围内。 如果气体处于超临界状态，可能会获得其他好处。

    In-mold coatings with improved performance
    5.
    发明授权
    In-mold coatings with improved performance 失效
    具有改进性能的模内涂层

    公开(公告)号：US5304332A

    公开(公告)日：1994-04-19

    申请号：US857031

    申请日：1992-03-24

    申请人： Douglas S. Richart

    发明人： Douglas S. Richart

    IPC分类号： B29C43/18 ,  B29C37/00 ,  B29C43/20 ,  B29K67/00 ,  B29K105/06 ,  B29L9/00 ,  B32B27/04 ,  B32B27/36 ,  C08L67/06

    CPC分类号： B29C37/0032 ,  C08L67/06 ,  B29C2037/0039 ,  B29K2067/06 ,  B29K2105/251 ,  Y10T428/31786 ,  Y10T428/31794

    摘要： The hardness and appearance of an in-mold coating for a molded article of cured unsaturated polyester are improved by the addition of melamine and/or benzoguanamine to an unsaturated polyester powder coating composition and subjecting the modified powder coating to a molding temperature of from about 260.degree. F. to about 340.degree. F. and a pressure of from about 650 psi to about 2,000 psi for from 1 to 12 minutes. From about 5 to about 40 parts of the melamine and/or benzoguanamine per hundred parts by weight of the coating resin is used.

    摘要翻译： 通过向不饱和聚酯粉末涂料组合物中加入三聚氰胺和/或苯并胍胺来改善固化的不饱和聚酯的模塑制品的模内涂层的硬度和外观，并使改性粉末涂料的成型温度为约260 至约340华氏度，压力为约650psi至约2,000psi，持续1至12分钟。 使用每100重量份涂料树脂约5至约40份的三聚氰胺和/或苯并胍胺。

    Thermosetting resin-based coating powders containing metal flakes
    6.
    发明授权
    Thermosetting resin-based coating powders containing metal flakes 失效
    含有金属薄片的热固性树脂基涂料粉末

    公开(公告)号：US5187220A

    公开(公告)日：1993-02-16

    申请号：US632376

    申请日：1990-12-21

    申请人： Douglas S. Richart ,  Andrew T. Daly

    发明人： Douglas S. Richart ,  Andrew T. Daly

    IPC分类号： C08J3/20 ,  C09D5/03 ,  C09D5/46

    CPC分类号： C08J3/203 ,  C09D5/032 ,  Y10T428/2998

    摘要： A flake-containing coating powder is obtained by admixing a coating powder that based upon a thermosetting resin and metallic or non-metalic flake. The powder and flake are mixed at a temperature in the range of above the softening temperature of the thermosetting resin of the coating powder but below the melting temperature of the thermosetting resin and with sufficient mechanical shear to prevent agglomeration of the coating powder particulates. Mixing is for a time sufficient to embed at least about 75% by weight of the flake into the coating powder.

    摘要翻译： 通过混合基于热固性树脂的涂层粉末和金属或非金属薄片获得含薄片的涂层粉末。 粉末和薄片在高于涂层粉末的热固性树脂的软化温度但低于热固性树脂的熔融温度的范围内的温度下混合，并且以足够的机械剪切来防止涂层粉末颗粒的团聚。 混合时间足以将至少约75重量％的薄片嵌入涂层粉末中。

    In-mold coatings with improved performance
    8.
    发明授权
    In-mold coatings with improved performance 失效
    具有改进性能的模内涂层

    公开(公告)号：US5480726A

    公开(公告)日：1996-01-02

    申请号：US152627

    申请日：1993-11-12

    申请人： Douglas S. Richart

    发明人： Douglas S. Richart

    IPC分类号： B29C43/18 ,  B29C37/00 ,  B29C43/20 ,  B29K67/00 ,  B29K105/06 ,  B29L9/00 ,  B32B27/04 ,  B32B27/36 ,  C08L67/06

    CPC分类号： B29C37/0032 ,  C08L67/06 ,  B29C2037/0039 ,  B29K2067/06 ,  B29K2105/251 ,  Y10T428/31786 ,  Y10T428/31794

    摘要： The hardness and appearance of an in-mold coating for a molded article of cured unsaturated polyester are improved by the addition of melamine and/or benzoguanamine to an unsaturated polyester powder coating composition and subjecting the modified powder coating to a molding temperature of from about 260.degree. F. to about 340.degree. F. and a pressure of from about 650 psi to about 2000 psi for from 1 to 12 minutes. From about 5 to about 40 parts of the melamine and/or benzoguanamine per hundred parts by weight of the coating resin is used.

    摘要翻译： 通过向不饱和聚酯粉末涂料组合物中加入三聚氰胺和/或苯并胍胺来改善固化的不饱和聚酯的模塑制品的模内涂层的硬度和外观，并使改性粉末涂料的成型温度为约260 约340°F，压力为约650psi至约2000psi，持续1至12分钟。 使用每100重量份涂料树脂约5至约40份的三聚氰胺和/或苯并胍胺。

    Resin mixtures and dispersions
    9.
    发明授权
    Resin mixtures and dispersions 失效
    树脂混合物和分散体

    公开(公告)号：US06946087B2

    公开(公告)日：2005-09-20

    申请号：US09726750

    申请日：2000-11-30

    申请人： Douglas S. Richart

    发明人： Douglas S. Richart

    IPC分类号： C08J3/02 ,  C08J3/205 ,  B29B15/00

    CPC分类号： C08J3/205 ,  C08J3/02 ,  Y10S524/904

    摘要： The invention discloses a method by which a fluid heat reactive resin system is formulated below the melting point of the resin. This permits the application of coatings and the formation of shapes and powders from the fluid heat reactive system. Liquefied gases are used to solvate resins so that curing agents, hardeners, pigments and flow control agents, and especially curing agents which are too reactive to be mixed with the resins above the melting point of the resins may be dispersed in the resins.After dispersion, the fluid heat reactive resin system remains in a deformable state under ambient conditions for a transient processing time. The transient processing time is established and maintained by the inclusion of plasticizers and high boiling solvents in the heat reactive resin system.

    摘要翻译： 本发明公开了一种将流体热反应性树脂体系配制在树脂熔点以下的方法。 这允许施加涂层并从流体热反应系统形成形状和粉末。 使用液化气体来溶剂化树脂，使得固化剂，硬化剂，颜料和流动控制剂，特别是过高反应性的固化剂可与树脂熔点以上的树脂混合，可以分散在树脂中。 在分散之后，流体热反应性树脂体系在环境条件下保持在可变形状态以进行瞬时处理时间。 通过在热反应性树脂体系中包含增塑剂和高沸点溶剂来建立和维持瞬时处理时间。