PROCESS FOR PREPARING ETHERS
    11.
    发明申请
    PROCESS FOR PREPARING ETHERS 审中-公开
    制备物质的方法

    公开(公告)号:WO1986003484A1

    公开(公告)日:1986-06-19

    申请号:PCT/US1985002399

    申请日:1985-12-06

    CPC classification number: C07C41/06 C07C29/76 C07C41/36 C07C43/046 C07C31/04

    Abstract: In the process for preparing methyl tert.-alkyl ether comprising the steps of (a) contacting and reacting in the liquid phase a reaction mixture formed by combining a stream consisting essentially of C4-C5 hydrocarbons and containing at least some proportion of isoalkylene and a stoichiometric excess of methanol, with respect to the isoalkylene, to form a reaction product comprising methyl tert.-alkyl ether, unreacted methanol and unreacted C4-C5 hydrocarbons; (b) isolating the methyl tert.-alkyl ether from the reaction product; and (c) recovering the unreacted methanol from the residual portion of the reaction product; the improvement which comprises selectively adsorbing the methanol constituent of said residual reaction product in a bed of crystalline molecular sieve adsorbent and recovering same by desorption using as a purge-desorption stream, the C4-C5 hydrocarbon stream used to prepare the initial reaction mixture.

    ORGANOSILOXANE POLYMERS AND COMPOSITIONS CONTAINING SAME CURABLE UPON EXPOSURE TO GASEOUS OXYGEN
    14.
    发明申请
    ORGANOSILOXANE POLYMERS AND COMPOSITIONS CONTAINING SAME CURABLE UPON EXPOSURE TO GASEOUS OXYGEN 审中-公开
    有机硅氧烷聚合物和组合物含有可曝光的气体氧化物

    公开(公告)号:WO1985002854A1

    公开(公告)日:1985-07-04

    申请号:PCT/US1984002110

    申请日:1984-12-28

    CPC classification number: C08G77/388 C08G77/20 C08G77/38

    Abstract: Polyorganosiloxanes that are curable to crosslinked solid material, at ambient temperature upon exposure to gaseous oxygen, wherein the polyorganosiloxane contains, per molecule, at least one monovalent olefinically polyunsaturated organic radical containing at least one 1,3-pentadienylene group or 1,4-pentadienylene group bonded to silicon through silicon-to-carbon bond and wherein any remaining valence of silicon is satisfied by a silicon-to-oxygen-to-silicon bond or by a monovalent organic radical free of more than one olefinically unsaturated group per monovalent organic radical, which monovalent organic radical is bonded to silicon by a silicon-to-carbon bond. Compositions are also described containing the novel polyorganosiloxanes, suitable driers either chemically combined in the polyorganosiloxane or physically mixed therewith. The compositions can also contain fillers, plasticizers and/or catalyst activators.

    CONTROLLED SEPARATION CHARACTERISTICS OF INTERLOCKING CLOSURE FASTENING DEVICES
    16.
    发明申请
    CONTROLLED SEPARATION CHARACTERISTICS OF INTERLOCKING CLOSURE FASTENING DEVICES 审中-公开
    互锁闭合装置的控制分离特性

    公开(公告)号:WO1985000341A1

    公开(公告)日:1985-01-31

    申请号:PCT/US1984000969

    申请日:1984-06-27

    CPC classification number: B65D33/2541 A44B19/16

    Abstract: Interlocking closure fastening devices (14) having controlled separation characteristics wherein the interdigitating hooks (24', 30') on one side of each closure element are longer, and/or larger than the interdigitating hooks (23', 29') on the opposite side of each closure element. In another embodiment, the controlled separation characteristics are obtained by forming the profile portion of the closure elements from stiffer plastic material. Combination of the two embodiments provides optimum controlled separation characteristics.

    IMPROVED AROMATIC POLYFORMAL BLENDS
    19.
    发明申请
    IMPROVED AROMATIC POLYFORMAL BLENDS 审中-公开
    改进的芳香聚合物混合物

    公开(公告)号:WO1984004103A1

    公开(公告)日:1984-10-25

    申请号:PCT/US1984000575

    申请日:1984-04-16

    Abstract: A moldable and compatible blend of 5 to 95 weight percent of an aromatic polyformal comprising from about 20 weight percent to 100 weight percent of repeating units (I), and from 0 weight percent to about 80 weight percent of repeating units (II), in which the repeating units (I) and the repeating units (II) are connected by interbonding units (III), wherein Y is selected from alkyl groups of 1 to 4 carbon atoms, chlorine or bromine, each z, independently, has a value of from 0 to 4 inclusive, n has a value of 0 or 1, and R1 is a divalent saturated or unsaturated aliphatic hydrocarbon radical, O, CO, SO2, S or a direct bond, with the proviso that when R1 is SO2 then repeating unit (II) is not the same as repeating unit (I), and 95 to 5 weight percent of a styrene copolymer or terpolymer and/or vinyl chloride containing polymers.

    TAR-DEPLETED LIQUID SMOKE SOLUTIONS AND METHOD
    20.
    发明申请
    TAR-DEPLETED LIQUID SMOKE SOLUTIONS AND METHOD 审中-公开
    TAR-DIPLETED液体烟雾解决方案和方法

    公开(公告)号:WO1984004023A1

    公开(公告)日:1984-10-25

    申请号:PCT/US1984000502

    申请日:1984-04-05

    CPC classification number: A23L27/27 Y10T428/1324

    Abstract: Tar-depleted liquid smoke solutions are made by generating a smoke vapor in a suitable smoke generator (51), selectively solvent extracting the tars from the smoke vapor, and absorbing the color, flavor and odor constituents of the smoke vapors into an aqueous medium. The aqueous tar-depleted liquid smoke (62) has a high coloring ability, a high concentration of carbonyls, and a low phenol content.

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