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541 条记录 (耗时 0.042 秒)

    Process for producing powdery polycarbonate from a polycarbonate solution
    81.
    发明授权
    Process for producing powdery polycarbonate from a polycarbonate solution 失效
    从聚碳酸酯溶液制备粉状聚碳酸酯的方法

    公开(公告)号：US4184911A

    公开(公告)日：1980-01-22

    申请号：US913315

    申请日：1978-06-07

    申请人： Hiroyuki Koda ,  Kunio Hamaya ,  Hiroyuki Yoshizaki ,  Yutaka Kojima ,  Shiro Tsuchiya ,  Shinichi Fukuda ,  Takashi Ikeno

    发明人： Hiroyuki Koda ,  Kunio Hamaya ,  Hiroyuki Yoshizaki ,  Yutaka Kojima ,  Shiro Tsuchiya ,  Shinichi Fukuda ,  Takashi Ikeno

    IPC分类号： C08J3/14 ,  B01D1/24

    CPC分类号： C08J3/14 ,  C08J2369/00 ,  Y10S159/10

    摘要： A process is disclosed for producing powdery polycarbonate from a polycarbonate solution which comprises:(a) charging the solution into the feed opening of a disolvating apparatus, the apparatus being composed of a casing and having at least two screws incorporated therein, the screws meshing with each other; the apparatus comprising two parts; a evaporating zone and a powdering zone; a space being provided above the screws in the evaporating zone, the space extending in the axial direction of the screws and having at least one degassing opening, and side and bottom portions of screws generally fitting with the casing in the evaporating zone; top, side and bottom portions of screws generally fitting with the casing in the powdering zone, heating means being installed in the casing and/or screws;(b) in the evaporating zone, evaporating the solvent of the polycarbonate solution using the heating means while moving the solution by the screws;(c) powdering the dried polycarbonate in the powdering zone; and(d) discharging the powdery polycarbonate from the product exit in the powdering zone.

    摘要翻译： 公开了一种从聚碳酸酯溶液制备粉状聚碳酸酯的方法，该方法包括：（a）将溶液装入分散装置的进料口中，该装置由壳体组成，其中并入有至少两个螺杆，螺钉与 彼此; 该装置包括两部分; 蒸发区和粉化区; 在蒸发区域的螺钉上方设置空间，该空间沿螺杆的轴向方向延伸，并且具有至少一个脱气开口，以及通常与壳体配合在蒸发区域中的螺钉的侧部和底部; 螺丝的顶部，侧面和底部通常与壳体配合在粉化区域中，加热装置安装在壳体和/或螺钉中; （b）在蒸发区内，用螺丝移动溶液时，使用加热装置蒸发聚碳酸酯溶液的溶剂; （c）将干燥的聚碳酸酯粉化在粉化区中; 和（d）从粉状区域中的产品出口排出粉末状聚碳酸酯。

    Recovery of silver and other valuable constituents from polyester based photographic film
    84.
    发明授权
    Recovery of silver and other valuable constituents from polyester based photographic film 失效
    从聚酯基摄影胶片中回收银和其他有价值的成分

    公开(公告)号：US4078916A

    公开(公告)日：1978-03-14

    申请号：US784829

    申请日：1977-04-05

    申请人： Arthur H. Gerber ,  Eugene Wainer

    发明人： Arthur H. Gerber ,  Eugene Wainer

    IPC分类号： C08L67/00 ,  B09B3/00 ,  B29B11/00 ,  B29B17/02 ,  B29B17/04 ,  C08J3/14 ,  C08J11/08 ,  G03C11/24 ,  C22B11/00 ,  C08J11/04

    CPC分类号： C08J11/08 ,  C08J3/14 ,  G03C11/24 ,  C08J2367/02 ,  Y02P20/582 ,  Y02W30/701

    摘要： Scrap photographic film comprising at least a four component system involving a polyalkyleneterephthalate film base, an adhesive or subbing layer utilizing a terpolymer consisting chiefly of polyvinylidenechloride and a gelatin layer containing metallic silver or a compound thereof and a variety of contaminants such as causal dirt, dyes and the like is broken down for recovery of the valuable constituents therein including the silver, the polyvinylidenechloride terpolymer, and the polyesters by treating the chopped photographic film at an elevated temperature with a solvent for both the polyester and polyvinylidenechloride values in which solvent both the gelatin and silver values are insoluble, under conditions chosen to insure the quantitative recovery of the silver values.

    摘要翻译： 包含至少一种涉及聚对苯二甲酸亚烷基酯薄膜基材的四组分体系的废料照相胶片，使用主要由聚偏二氯乙烯组成的三元共聚物和含有金属银或其化合物的明胶层的粘合剂或底胶层以及各种污染物如致病污垢，染料 通过用聚酯和聚偏二氯乙烯的溶剂处理短时间的照相胶片，在高温下处理切碎的照相胶片，分解其中的有价值成分，包括银，聚偏二氯乙烯三元共聚物和聚酯，其中溶剂都是明胶 并且在选择的条件下，银值是不溶的，以确保银值的定量回收。

    Method of preparing homogeneous thermosetting powder paint compositions
    85.
    发明授权
    Method of preparing homogeneous thermosetting powder paint compositions 失效
    制备均匀热固性粉末涂料组合物的方法

    公开(公告)号：US4066613A

    公开(公告)日：1978-01-03

    申请号：US629160

    申请日：1975-11-05

    申请人： Stephen Chung-Suen Peng

    发明人： Stephen Chung-Suen Peng

    IPC分类号： C09D5/03 ,  C09D5/46 ,  C08J3/14

    CPC分类号： C09D5/03 ,  Y10S524/904

    摘要： A method of preparing a homogeneous thermosetting powder paint composition which cures to form a coating exhibiting outstanding exterior durability, adhesion, impact strength and, in particular, color match. The method comprises: introducing a liquid paint composition including at least a cross-linkable copolymer and a uniformly dispersed pigment into an evaporating zone adapted to heat said liquid paint so as to evaporate the inert solvent contained therein; passing the liquid paint into a separating zone; causing said solvent vapor to be removed; removing the non-volatile components of said paint in a molten state; cooling said non-volatile components; and pulverizing to form a powder.

    Process for the production of pourable, pulverulent rubber-filler mixtures
    88.
    发明授权
    Process for the production of pourable, pulverulent rubber-filler mixtures 失效
    生产可倾倒，粉状橡胶填料混合物的方法

    公开(公告)号：US3929707A

    公开(公告)日：1975-12-30

    申请号：US48370974

    申请日：1974-06-27

    申请人： HUELS CHEMISCHE WERKE AG

    发明人： BERG GERHARD ,  NORDSIEK KARL-HEINZ

    IPC分类号： C08L23/00 ,  C08C1/00 ,  C08C2/06 ,  C08J3/14 ,  C08J3/16 ,  C08J3/20 ,  C08J3/215 ,  C08K3/00 ,  C08K3/04 ,  C08K5/01 ,  C08K5/17 ,  C08L7/00 ,  C08L21/00 ,  C08L33/00 ,  C08L33/02 ,  C08L101/00 ,  C08L9/04

    CPC分类号： C08J3/215 ,  C08J2321/00

    摘要： In a process for preparing discrete, finely divided, tack-free, pourable, powdery, filler-containing elastomer particles from an admixture of (a) an aqueous elastomer emulsion comprising (i) a solution of elastomer dissolved in a volatile, inert organic solvent having a boiling point below 100*C, (ii) an elastomer emulsifying amount of an alkylamine oxyalkylate surfactant, and (iii) water; and (b) an aqueous suspension or dispersion of a solid, finely divided elastomer filler, which comprises gradually introducing said admixture into an aqueous alkali silicate solution containing 2-20 moles of SiO2 per mole of said alkylamine oxyalkylate while maintaining said silicate solution at an acidic pH of 0.1-7 and simultaneously evaporating said volatile organic solvent to form said filler-containing elastomer particles, the improvement which comprises: EMPLOYING SAID ADMIXTURE OF (A) AND (B) IN THE FORM OF A STABLE, AQUEOUS EMULSION CONTAINING AN EMULSION-STABILIZING AMOUNT OF AN IONIC, WATER SOLUBLE PROTECTIVE COLLOID AND HAVING AN ALKALINE PH of 7-14.

    摘要翻译： 在（a）水性弹性体乳液的混合物中制备离散的，细分的，无粘性的，可倾倒的，粉末状的含填料的弹性体颗粒的方法，其包括（i）溶解在挥发性惰性有机溶剂中的弹性体溶液 沸点低于100℃，（ii）弹性体乳化量的烷基胺氧烷基酯表面活性剂，和（iii）水; 和（b）固体细分的弹性体填料的水性悬浮液或分散体，其包括将所述混合物逐渐引入每摩尔所述烷基胺氧烷基化物中含有2-20摩尔SiO 2的碱金属硅酸盐水溶液中，同时将所述硅酸盐溶液保持在 酸性pH为0.1-7，同时蒸发所述挥发性有机溶剂以形成所述含填料的弹性体颗粒，其改进包括：

    Method of preparing films and coatings of heterocyclic-aromatic polymers
    90.
    发明授权
    Method of preparing films and coatings of heterocyclic-aromatic polymers 失效
    杂环芳族聚合物薄膜和涂料的制备方法

    公开(公告)号：US3632414A

    公开(公告)日：1972-01-04

    申请号：US3632414D

    申请日：1969-06-26

    申请人： US AIR FORCE

    发明人： ARNOLD FRED E ,  DEUSEN RICHARD L VAN

    IPC分类号： C08G73/06 ,  C08J3/14 ,  B44D1/36 ,  C03C17/06

    CPC分类号： C08J3/14 ,  C08G73/0694

    摘要： This invention comprises a method of preparing films and coatings of aromatic-heterocyclic ladder polymers. These polymers are insoluble in solvents from which films might be cast by the ordinary technique of coating a surface with a solution of a polymer and allowing the solvent to evaporate therefrom. Since the only solvents known for such ladder polymers are sulfuric acid and methane sulfonic acid, it is not possible to use the ordinary technique of laying film by the solvent evaporation process because of the high boiling points and high temperatures thereby required. Furthermore, the surface to be coated may be susceptible to attack by such corrosive solvents. According to the present invention it has been found that films and coatings of the ladder polymers can be formed by using a fine dispersion of the ladder polymer in a nonsolvent, such as alcohol or an easily evaporated hydrocarbon. A relatively smooth, strong film can be prepared by collecting the particles from the dispersion either by filtration on a porous surface such as fritted glass or by drawing a metal surface through the dispersion and allowing the dispersion medium to evaporate from the wetted metal surface and thereby deposit the dispersed polymer particles thereon.

    摘要翻译： 本发明包括制备芳族 - 杂环梯形聚合物的膜和涂层的方法。 这些聚合物不溶于通过用聚合物溶液涂布表面并允许溶剂从其中蒸发的常规技术来浇铸膜的溶剂。 由于这种梯级聚合物已知的唯一溶剂是硫酸和甲磺酸，由于需要高沸点和高温，因此通过溶剂蒸发方法不能使用普通的铺设膜技术。 此外，待涂覆的表面可能易受这种腐蚀性溶剂的侵蚀。 根据本发明，已经发现梯形聚合物的膜和涂层可以通过使用梯形聚合物在非溶剂例如醇或易挥发的烃中的细分散体来形成。 可以通过在多孔表面如烧结玻璃上过滤或者通过将金属表面拉伸通过分散体并允许分散介质从润湿的金属表面蒸发而从分散体中收集颗粒或通过在多孔表面上过滤来制备相对光滑的强膜 将分散的聚合物颗粒沉积在其上。