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    6.
    发明专利
    未知

    公开(公告)号：DE1001003B

    公开(公告)日：1957-01-17

    申请号：DEST004578

    申请日：1952-03-15

    Applicant: STANDARD OIL CO

    Inventor： ZLETZ ALEX

    IPC: B01J21/16 ,  B01J23/28 ,  B01J23/882 ,  B01J23/90 ,  C08F2/00 ,  C08F10/00 ,  C08F10/02 ,  C08L23/12

    Abstract: Solid polypropylene which may be crystalline, resinous or rubbery, may be obtained using the catalysts and processes disclosed in the parent Specification and optionally using alkali metals or calcium hydride as promoters. The products may be fractionated, stretched, formed into moistureproof films or into fibres, and may be subjected to the after-treatments and applications disclosed in the parent Specification. The polymers may also be nitrated, treated with quinones, vulcanization agents, peroxides, or radiation (whereby cross-linked materials may be obtained), or may be oxidized and then graft polymerized with styrene, vinyl chloride, vinylidine chloride or cyanide, acrylonitrile, or methyl methacrylate. Compositions may be formed with polyethylenes, polyisobutylenes, natural and synthetic rubbers, paraffin wax, petrolatum, vinyl resins, lubricating oils and greases, and solvents such as xylene. Typical applications specified are in packaging materials, vapour barriers, dielectrics; coatings on paper, wood, leather or concrete; adhesives, sealing resins, laminates, containers, tubing, and sponges. Specification 748,634 is referred to.

    Propellants
    7.
    发明专利
    Propellants 未知

    公开(公告)号：GB760470A

    公开(公告)日：1956-10-31

    申请号：GB3146252

    申请日：1952-12-11

    Applicant: STANDARD OIL CO

    Inventor： CARMODY DON RICHARD ,  ZLETZ ALEX

    IPC: C06B43/00 ,  C06B47/04 ,  C06D5/08

    Abstract: 760,470. Jet-propulsion plant. STANDARD OIL CO. Dec. 11, 1952, No. 31462/52. Drawings to Specification. Class 110 (3). A reaction propulsion method, e.g. for the generation of hot gases in a rocket motor, comprises injecting separately and simultaneously into a combustion chamber a hypergolic fuel consisting of an organic trithiophosphite having the formula RR 1 R 11 S 3 P, wherein P is phosphorus, S is sulphur and R, R 1 and R 11 represent the same or different hydrocarbon radicals selected from alkyl radicals containing 1 to 4 carbon atoms, unsaturated aliphatic radicals containing 2 to 8 carbon atoms, cycloalkyl radicals containing 3 to 8 carbon atoms, and the aromatic radicals phenyl, tolyl, xylyl, ethylphenyl and vinyl phenyl and a nitric acid oxidizer which contains not more than 20 per cent by weight of non-acidic materials. The hypergolic fuel may be a mixture of trialkyl trithiophosphites which contain methyl, ethyl, propyl and butyl radicals or mixtures thereof and in which the methyl and ethyl groups are predominant and may contain a non-hypergolic constituent, e.g. a hydrocarbon (mixed petroleum distillate) boiling below 600‹ F. The oxidizer may be fuming nitric acid to which nitrogen tetroxide may be added, or a nitric acid-oleum mixture.

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