Process for the preparation of organic dithiol polysulfides
    2.
    发明授权
    Process for the preparation of organic dithiol polysulfides 失效
    制备有机二硫醇多硫化物的方法

    公开(公告)号:US3862922A

    公开(公告)日:1975-01-28

    申请号:US39644473

    申请日:1973-09-12

    Abstract: A process for the preparation of organic dithiol polysulfides with a molecular weight of between 500 and 10,000, characterized by the fact that these products are obtained when a dihalogenated organic derivative and hydrogen sulfide react simultaneously with an alkaline polysulfide solution. New products are obtained by this process, using dichlorodiethyl formal and dichlorodibutyl formal. These dithiol polysulfides react with sulfur to form either plasticized sulfur, with many possible applications in the coating field, or polysulfide polymers, one of the applications of which is the modification of bitumens.

    Abstract translation: 一种制备分子量在500至10,000之间的有机二硫醇多硫化物的方法,其特征在于当二卤代有机衍生物和硫化氢与碱性多硫化物溶液同时反应时获得这些产物。 通过该方法获得新产物,使用二氯二乙基甲缩醛和二氯正丁基甲醛。 这些二硫醇多硫化物与硫反应以形成增塑硫,在涂层领域有许多可能的应用,或多硫化物聚合物,其应用之一是改性沥青。

    Plastic and nonflammable sulfur composition
    4.
    发明授权
    Plastic and nonflammable sulfur composition 失效
    塑料和非易燃硫化物组合物

    公开(公告)号:US3560451A

    公开(公告)日:1971-02-02

    申请号:US3560451D

    申请日:1968-02-12

    CPC classification number: C04B28/36 C04B24/00 C04B24/003 C04B24/16

    Abstract: A NONFLAMMABLE PLASTIC COMPOSITION IS OBTAINED BY MELTING TOGETHER SULFUR WITH THREE COMPOUNDS WHICH ARE: (1) A DITHIOPHOSPHORIC ACID ESTER ACRYLIC HYDROCARBYLS, (2) A VINYL-ARYL HYDROCARBON AND ( 3) A POLYTHIOMETHYLENE-ALKANOL RESIN, THE THREE COMPOUNDS ARE MIXED WITH THE MOLTEN SULFUR SEPARATELY OR JOINTLY, EXCEPT THAT THE ESTER (1) AND THE RESIN (3) ARE NEVER ADDED AT THE SAME TIME, AND THE MOMENTS OF THEIR ADDITION ARE SEPARATED BY A PERIOD OF HEATING THE MIXTURE AT 120 * TO 180*C.

    Adhesive plasticised sulphur containing an olefine polymer
    5.
    发明授权
    Adhesive plasticised sulphur containing an olefine polymer 失效
    含有烯烃聚合物的胶粘剂硫化剂

    公开(公告)号:US3465064A

    公开(公告)日:1969-09-02

    申请号:US3465064D

    申请日:1967-03-02

    Abstract: 1,182,171. Treating polymers; polysulphide products; sulphur compositions. SOC. NATIONALE DES PETROLES D'AQUITAINE. 7 March, 1967 [11 March, 1966], No. 10685/67. Headings C3N, C3P and C3R. [Also in Divisions C5 and El] ' Plastic reaction products are prepared by heating while stirring at 100‹ to 200‹ C. 40 to 95 parts by weight of molten sulphur, 0-05 to 59.5 parts by weight of a dithiolpolysulphide and 0À05 to 59À5 parts by weight of an olefin polymer, and optionally up to 49À5 parts by weight of an ethylenically unsaturated compound until a homogeneous plastic is formed. Specified olefin polymers are polymers and copolymers of ethylene, propylene, butene, isobutene, pentenes, hexenes, heptenes and octenes. The dithiol polysulphide may be of formula where m is 0 to 17, R and R 1 are hydrogen or alkyl and p is at least 2; and may be prepared by reaction of a haloepoxy alkane, e.g. 1-chloro- 5,6 - epoxyhexane, 2 - chloro - 5,6 - epoxyhexane, 1 - chloro - 4,5 - epoxypentane, 1- chloro - 3,4 - epoxybutane, 2 - bromo - 3,4- epoxybutane, 1 - chloro - 2,3 - epoxybutane and 1 - chloro - 2,3 - epoxypropane, with hydrogen sulphide and an alkali or alkaline earth metal polysulphide in aqueous solution. Specified unsaturated compounds are isobutene, diisobutene, triisobutene, cyclopentene, cyclohexene, pinene, camphene, allo-ocimene, myrcene, styrene, a-methylstyrene, chlorostyrene, indene, allene, butadiene, isoprene, chloroprene, hexadiene-1,5, diallyl, dimethallyl, heptadiene- 1,6, cyclopentadiene, vinyl cyclopentadiene, vinyl cyclohexene, divinyl acetylene, divinyl benzene, trivinyl benzene and hexatriene. The products may be formed by the separate or simultaneous addition of the organic reactants to molten sulphur, or by prereacting the dithiol polysulphide with the unsaturated compound and optionally the sulphur. The products may be used for making traffic signs and, optionally mixed with sand or gravel, for covering ground. They may be used in paints and as a jointing medium. Examples describe (I) the preparation of a dithiol polysulphide by reacting sodium hydroxide, sulphur, hydrogen sulphide and epichlorohydrin; and the preparation of plastic compositions by reacting this product with sulphur and (II) polybutene, (III and VIII) polybutene and styrene, (VI) polyethylene, (IX and X) polyisobutylene and styrene, (XI) ethylene/propylene copolymer and a-methylstyrene, (XII) atactic polypropylene and (XIII) atactic polypropylene and chloroprene.

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