中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

123 records (took 0.024 seconds)

    MICROWAVE SINTERING PROCESS
    41.
    发明申请
    MICROWAVE SINTERING PROCESS 审中-公开
    微波烧结工艺

    公开(公告)号：WO1995026940A1

    公开(公告)日：1995-10-12

    申请号：PCT/CA1995000172

    申请日：1995-03-24

    Applicant: WESTAIM TECHNOLOGIES INC. ,  APTE, Prasad, Shrikrishna ,  MORRIS, Larry, Roy

    Inventor： WESTAIM TECHNOLOGIES INC.

    IPC: C04B35/64

    CPC classification number: C04B35/584 ,  C04B35/117 ,  C04B35/581 ,  C04B35/64

    Abstract: The invention provides a microwave susceptor bed useful for sintering ceramics, ceramic composites and metal powders. The susceptor bed comprises granules of a major amount of a microwave susceptor material, and a minor amount of a refractory parting agent, either dispersed in the susceptor material, or as a coating on the susceptor material. Alumina is the preferred susceptor material. Carbon is the most preferred parting agent. The invention extends to a sintering process using the bed and to novel silicon nitride products produced thereby.

    Abstract translation: 本发明提供了一种用于烧结陶瓷，陶瓷复合材料和金属粉末的微波感受器床。 感受器床包含主要量的微波感受器材料的颗粒和分散在感受体材料中的少量耐火分离剂，或作为感受体材料上的涂层。 氧化铝是优选的感受材料。 碳是最优选的脱模剂。 本发明延伸到使用床的烧结工艺和由此产生的新型氮化硅产品。

    ANTI-MICROBIAL MATERIALS
    42.
    发明申请
    ANTI-MICROBIAL MATERIALS 审中-公开
    抗微生物材料

    公开(公告)号：WO1995013704A1

    公开(公告)日：1995-05-26

    申请号：PCT/CA1994000604

    申请日：1994-11-01

    Applicant: WESTAIM TECHNOLOGIES INC. ,  BURRELL, Robert, Edward ,  APTÉ, Prasad, Shrikrishna ,  GILL, Kashmir, Singh ,  PRECHT, Roderick, John ,  MORRIS, Larry, Roy ,  MCINTOSH, Catherine, Laurie ,  SANT, Sudhindra, Bharat

    Inventor： WESTAIM TECHNOLOGIES INC.

    IPC: A01N59/16

    CPC classification number: C23C14/588 ,  A01N59/16 ,  A01N59/26 ,  A61B2018/00119 ,  A61L17/145 ,  A61L29/106 ,  C23C14/0036 ,  C23C14/025 ,  C23C14/06 ,  C23C14/0688 ,  C23C14/086 ,  C23C14/14 ,  C23C14/16 ,  A01N47/30 ,  A01N43/80 ,  A01N43/78 ,  A01N41/08 ,  A01N2300/00

    Abstract: Anti-microbial coatings and powders and method of forming same on medical devices are provides. The coatings are preferably formed by depositing an anti-microbial biocompatible metal by vapour deposition techniques to produce atomic disorder in the coating such that a sustained release of metal ions sufficient to produce an anti-microbial effect is achieved. Preferred deposition conditions to achieve atomic disorder include a lower than normal substrate temperature, and one or more of a higher than normal working gas pressure and a lower than normal angle of incidence of coating flux. Anti-microbial powders formed by vapour deposition or altered by mechanical working to produce atomic disorder are also provided. The anti-microbial effect of the coatings or powders may be further activated or enhanced by irradiating with a low linear energy transfer form of radiation such as gamma radiation. Novel anti-microbial silver materials are defined, characterized by having a positive rest potential, a Trec/Tm less than 0.33, and a grain size less than 200 nm. Anti-microbial fine grain or nanocrystalline materials are provided, together with methods of preparation, wherein the anti-microbial metal if deposited in a matrix with atoms or molecules of a different material such as other biocompatible metals (ex. Ta), trapped or absorbed oxygen, or compounds of anti-microbial metals or biocompatible metals (ex. Ag0 or TaO). The invention also extends to a method of producing an anti-microbial effect with silver materials that form complex silver ions other than Ag , Ag and Ag .

    Abstract translation: 提供了抗微生物涂层和粉末及其在医疗设备上的形成方法。 优选通过气相沉积技术沉积抗微生物生物相容性金属以在涂层中产生原子紊乱形成涂层，从而实现足以产生抗微生物作用的金属离子的持续释放。 实现原子紊乱的优选沉积条件包括低于正常的衬底温度，以及高于正常工作气体压力和低于正常入射角的涂层焊剂的一种或多种。 还提供了通过气相沉积或通过机械加工改变以产生原子紊乱形成的抗微生物粉末。 通过用低线性能量转移形式的辐射如γ辐射照射可以进一步激活或增强涂层或粉末的抗微生物作用。 定义了新的抗微生物银材料，其特征在于具有阳性静电位，Trec / Tm小于0.33，粒度小于200nm。 提供抗微生物细晶粒或纳米晶体材料以及制备方法，其中如果将抗微生物金属沉积在具有不同材料的原子或分子的基质中，例如其它生物相容性金属（例如Ta），被捕获或吸收 氧气或抗微生物金属或生物相容性金属化合物（例如AgO或TaO）。 本发明还延伸到用除Ag +，Ag 2+和Ag <3+以外的复合银离子的银材料产生抗菌效果的方法。

    ELECTROLUMINESCENT LAMINATE WITH THICK FILM DIELECTRIC
    43.
    发明申请
    ELECTROLUMINESCENT LAMINATE WITH THICK FILM DIELECTRIC 审中-公开
    具有厚膜电介质的电致发光层压板

    公开(公告)号：WO1993023972A1

    公开(公告)日：1993-11-25

    申请号：PCT/CA1993000195

    申请日：1993-05-06

    Applicant: WESTAIM TECHNOLOGIES INC. ,  WU, Xingwei ,  STILES, James, Alexander, Robert ,  FOO, Ken, Kok ,  BAILEY, Phillip

    Inventor： WESTAIM TECHNOLOGIES INC.

    IPC: H05B33/22

    CPC classification number: H05B33/28 ,  H05B33/10 ,  H05B33/12 ,  H05B33/22 ,  H05B33/26 ,  Y10S117/904 ,  Y10S428/917 ,  Y10S438/94

    Abstract: An improved dielectric layer of an electroluminescent laminate, and method of preparation are provided. The dielectric layer is formed as a thick layer from a ceramic material to provide: a dielectric strength greater than about 1.0 x 10 V/m; a dielectric constant such that the ratio of the dielectric constant of the dielectric material to that of the phosphor layer is greater than about 50:1; a thickness such that the ratio of the thickness of the dielectric layer to that of the phosphor layer is in the range of about 20:1 to 500:1; and a surface adjacent the phosphor layer which is compatible with the phosphor layer and sufficiently smooth that the phosphor layer illuminates generally uniformly at a given excitation voltage. The invention also provides for electrical connection of an electroluminescent laminate to voltage driving circuitry with through hole technology. The invention also extends to laser scribing the transparent conductor lines of an electroluminescent laminate.

    Abstract translation: 提供了电致发光层压板的改进的介电层及其制备方法。 电介质层由陶瓷材料形成为厚层，以提供：大于约1.0×10 6 V / m 2的介电强度; 介电常数使得介电材料的介电常数与荧光体层的介电常数之比大于约50:1; 使得电介质层的厚度与荧光体层的厚度的比率在约20:1至500:1的范围内的厚度; 以及与荧光体层相容并且足够光滑的磷光体层的表面，使得荧光体层在给定的激发电压下大致均匀地照射。 本发明还提供电致发光层压板与通孔技术的电压驱动电路的电连接。 本发明还延伸到激光刻划电致发光层压板的透明导体线。

    ANTI-MICROBIAL COATINGS HAVING INDICATOR PROPERTIES AND WOUND DRESSINGS
    45.
    发明专利
    ANTI-MICROBIAL COATINGS HAVING INDICATOR PROPERTIES AND WOUND DRESSINGS 未知

    公开(公告)号：CA2284096C

    公开(公告)日：2007-12-04

    申请号：CA2284096

    申请日：1998-02-17

    Applicant: WESTAIM TECHNOLOGIES INC

    Inventor： PRECHT RODERICK JOHN ,  BURRELL ROBERT EDWARD

    IPC: A01N59/00 ,  A01N25/34 ,  A01N59/16 ,  A01P1/00 ,  A61F13/00 ,  A61L15/18 ,  A61L15/46 ,  A61L17/00 ,  A61L29/16 ,  A61L31/16 ,  B32B15/01

    Abstract: Multilayer anti-microbial materials formed to produce an interference colour , and thus an indicator of anti-microbial effect, are provided. The materials include a partly reflective base layer and a partly reflective, partly transmissive top layer balanced to produce an interference colour. The top layer is formed from an anti-microbial metal wi th atomic disorder. Dissolution or a change in composition of the top layer on contacting an alcohol or electrolyte causes a change in optical path length so as to produce a change in the interference colour of the material. Multilayer, laminated wound dressings are also provided. Th e dressing includes a first and second layer, and preferably a third layer. The first and third layers are formed of perforated, non-adhere nt materials and most preferably carry an anti-microbial coating as above. The second layer is sandwiched between the first and third layers and is formed of an absorbent material. At least one of the layers is formed from a plastic material. The layers are laminated together by ultrasonic welds spaced intermittently on the dressing to allow the dressing to be cut to size with delaminating.

Patent Agency Ranking