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    • 6. 发明申请
    • Direct-lit light guiding structure, direct-lit light guiding panel and lighting device
    • 直射式导光结构,直射式导光板及照明装置
    • US20120069579A1
    • 2012-03-22
    • US13200074
    • 2011-09-16
    • Zhi-Wei KohChi-Jen KaoWen-Chiun IngWei-Hsin Hou
    • Zhi-Wei KohChi-Jen KaoWen-Chiun IngWei-Hsin Hou
    • F21V8/00G02B6/26
    • G02B6/0036G02B6/0018G02B6/0021G02B6/0046G02B6/0055G02B6/0078
    • A direct-lit light guiding structure, a direct-lit light guiding panel and a lighting device are disclosed. The light guiding structure includes a light transmissive body and microstructures; the light transmissive body includes an upper conical groove and a lower accommodating groove, and the upper conical groove has a curved surface with a continually varied slope; the microstructures are disposed on the light transmissive body. The lighting device includes a circuit board, a light source and the aforesaid light guiding structure; the light source and the light guiding structure are disposed on the circuit board, and the light source is accommodated within the lower accommodating groove. With these arrangements, the direct-lit light guiding structure can receive the light rays emitted from the light source, and then output the lights uniformly. Further, a plurality of direct-lit light guiding structures can be connected with one another to form the direct-lit light guiding panel.
    • 公开了直接照明的导光结构,直接照明的导光板和照明装置。 导光结构包括透光体和微结构; 透光体包括上锥形槽和下容纳槽,并且上锥形槽具有不断变化的斜率的曲面; 微结构设置在透光体上。 照明装置包括电路板,光源和上述导光结构; 光源和导光结构设置在电路板上,并且光源容纳在下容纳槽内。 利用这些布置,直接照明的光导结构可以接收从光源发射的光线,然后均匀地输出光。 此外,可以将多个直射光导引结构彼此连接以形成直射光导板。
    • 8. 发明授权
    • Method of forming fine polymer particles and polymer-encapsulated
particulates
    • 形成细聚合物颗粒和聚合物包封颗粒的方法
    • US5270445A
    • 1993-12-14
    • US645174
    • 1991-01-24
    • Wei-Hsin Hou
    • Wei-Hsin Hou
    • C08J3/14C08J3/21G03G9/08G03G9/093G03G9/12C08F6/00
    • C08J3/21C08J3/14G03G9/0825G03G9/09392G03G9/12
    • A polyamide polymer and one of methanol, ethanol and 2-propanol are formed into a solution by heating at 70 degrees Celsius for approximately two hours, the resulting solution is cooled to precipitate the polymer as particles from said solution. Alternatively, a non-solvent to said polymer may be added to effect precipitation of said polymer particles. The solvent is removed and the particles isolated and dried to form a dry powder. Fine particulate material such as a pigment, may be included with the polymer and solvent in formation of the solution. The resulting solution may be cooled at a rapid rate to precipitate the particles as polymer-encapsulated pigment particles of generally uniform size and morphology, the surface characteristics such as surface area being controlled. The precipitated polymer particles may be classified when dispersed in a dispersant medium, as mono-dispersed particles. The polymer-encapsulated pigment particles are isolated, dried and may be redispersed in a dispersant medium along with a charge control agent and a steric stabilizer to form a liquid toner for electrophotographic imaging. Alternatively, the solvent can be removed by washing with a non-solvent, the charge control agent added with the dispersant to form the liquid toner. Particles other than pigment may be polymer-encapsulated using the precipitation method disclosed. The non-solvent may be any solvent which has a poor thermodynamic quality for the polymer.
    • 通过在70摄氏度下加热约2小时将聚酰胺聚合物和甲醇,乙醇和2-丙醇中的一种形成溶液,将所得溶液冷却以使聚合物从所述溶液中沉淀出。 或者,可以加入对所述聚合物的非溶剂以实现所述聚合物颗粒的沉淀。 除去溶剂,分离并干燥颗粒以形成干燥粉末。 精细的颗粒材料如颜料可以与聚合物和溶剂一起形成溶液。 所得到的溶液可以以快速的速度冷却,以将颗粒沉淀为具有大致均匀尺寸和形态的聚合物包封的颜料颗粒,表面特性如表面积被控制。 当分散在分散介质中时,沉淀的聚合物颗粒可以分为单分散颗粒。 聚合物包封的颜料颗粒被分离,干燥,并可与电荷控制剂和空间稳定剂一起再分散在分散剂介质中以形成用于电子照相成像的液体调色剂。 或者,可以通过用非溶剂洗涤除去溶剂,电荷控制剂加入分散剂以形成液体调色剂。 除了颜料之外的颗粒可以使用所公开的沉淀方法进行聚合物包封。 非溶剂可以是聚合物热力学质量差的溶剂。