Aluminum powder blasting slurry sensitizer
    2.
    发明授权
    Aluminum powder blasting slurry sensitizer 失效
    铝粉喷砂浆增感剂

    公开(公告)号:US4348242A

    公开(公告)日:1982-09-07

    申请号:US097885

    申请日:1979-11-27

    IPC分类号: B22F9/04 C09C1/64 C06B45/34

    摘要: An improved water dispersible aluminum powder composition containing from 0.1% to less than 5% of a polyvinylpyrrolidone resin, and processes for its preparation are disclosed. This composition has the advantages that, in comparison to known compositions containing higher levels of polyvinylpyrrolidone, it can be more completely separated from hydrocarbons, and, when used as a water based slurry blasting agent sensitizer is effective in smaller diameter bore holes.

    摘要翻译: 公开了一种改进的含有0.1%至小于5%的聚乙烯吡咯烷酮树脂的水分散性铝粉组合物及其制备方法。 该组合物的优点在于,与含有较高含量的聚乙烯吡咯烷酮的已知组合物相比,其可以更完全地与烃分离,并且当用作水基浆料喷丸剂增感剂在较小直径的钻孔中是有效的。

    Retro-reflecting sheet material
    3.
    发明授权
    Retro-reflecting sheet material 失效
    反光片材

    公开(公告)号:US4340273A

    公开(公告)日:1982-07-20

    申请号:US201156

    申请日:1980-10-27

    CPC分类号: B29D11/00615 G02B5/128

    摘要: The specification relates to retro-reflectors of the type used for road signs and markers and vehicle license plates to make these objects more noticeable to road users after dark. In the invention, the surface of a metal substrate is made retro-reflective by applying a layer of an organic polymeric material and adhering glass beads thereto, and then passing the substrate through a roller mill or the like with the glass beads covered by a platen so that the beads form indentations in the metal surface. The presence of the platen allows the pressing (indentation) step to take place without damage to the glass beads or to the layer between the beads and the metal surface. By this means, a hard metal article can be made directly retro-reflective.

    Aluminum powder blasting slurry sensitizer
    4.
    发明授权
    Aluminum powder blasting slurry sensitizer 失效
    铝粉喷砂浆增感剂

    公开(公告)号:US4274894A

    公开(公告)日:1981-06-23

    申请号:US915720

    申请日:1978-06-15

    摘要: Aluminum powder compositions, and methods for their preparation, comprising fine particle size aluminum powder, a polyvinylpyrrolidone resin in an amount of 5% to 20%, based on the aluminum, and either a hydrocarbon or a polar liquid medium in an amount of 30% to 50%, based on the aluminum, are described. These compositions find use as sensitizers in slurry-type blasting agents. Compared to known compositions, they are both dust free and substantially non-reactive, on storage, toward the aqueous milieu of such a slurry.

    摘要翻译: 铝粉组合物及其制备方法,其包含细粒度的铝粉,基于铝的5%至20%的聚乙烯吡咯烷酮树脂和30重量%的烃或极性液体介质, 至50%,基于铝。 这些组合物可用作浆料型爆破剂中的敏化剂。 与已知的组合物相比,它们在储存时都是无尘的和基本上不反应的,朝向这种浆料的水溶液环境。

    Retro-reflecting sheet material and method of making same
    5.
    发明授权
    Retro-reflecting sheet material and method of making same 失效
    反光片材及其制造方法

    公开(公告)号:US4265938A

    公开(公告)日:1981-05-05

    申请号:US75007

    申请日:1979-09-13

    CPC分类号: B29D11/00615 G02B5/128

    摘要: The specification relates to retro-reflectors of the type used for road signs and markers and vehicle license plates to make these objects more noticeable to road users after dark. In the invention, the surface of a metal substrate is made retro-reflective by applying a layer of an organic polymeric material and adhering glass beads thereto, and then passing the substrate through a roller mill or the like with the glass beads covered by a platen so that the beads form indentations in the metal surface. The presence of the platen allows the pressing (indentation) step to take place without damage to the glass beads or to the layer between the beads and the metal surface. By this means, a hard metal article can be made directly retro-reflective.

    摘要翻译: 本说明书涉及用于道路标志和标记的车辆牌照的反光镜和车牌,以使得这些物体在黑暗之后对道路使用者更加明显。 在本发明中,金属基材的表面通过涂覆一层有机聚合物材料并将玻璃珠粘附在其上,然后使基板通过辊磨机等使其被玻璃珠覆盖在台板上 使得珠在金属表面中形成凹陷。 压板的存在允许压制(压痕)步骤发生而不损坏玻璃珠或珠与金属表面之间的层。 通过这种方式,硬金属制品可以直接制成逆反射。