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    Oxyalkylated organotin compounds and process for their preparation
    3.
    发明授权
    Oxyalkylated organotin compounds and process for their preparation 失效
    烷氧基化有机锡化合物及其制备方法

    公开(公告)号：US2997496A

    公开(公告)日：1961-08-22

    申请号：US63073456

    申请日：1956-12-27

    Applicant: HOECHST AG

    Inventor： CHRISTOPH DORFELT ,  KURT HARTEL ,  EUGEN REINDL

    IPC: C07F7/22

    CPC classification number: C07F7/2232

    Abstract: The invention comprises polyoxyethylated organotin compounds (or organotin polyglycollato compounds) of formula R1xSn[(OCH2CH2)n-Z]4-x wherein R1 represents a C1-6 alkyl radical, phenyl or cyclohexyl, x represents 1,2 or 3, Z represents an organic or inorganic acid radical or the hydroxyl group and n represents a number from 1 to 50. They may be prepared by passing ethylene oxide at elevated temperature and preferably under pressure into the selected organotin compound e.g. butyl tin trichloride, dibutyl tin dichloride, tributyl tin chloride, triphenyl tin chloride, triphenyl tin acetate, dibutyl tin diacetate, dibutyl tin bis-(o:o-diethylphosphate), tributyl-(p-toluenesulphonamido)-tin or biphenyl tin hydroxide. A catalyst such as tin tetrachloride, potassium hydroxide, sodium hydroxide, potassium or sodium alcoholate may be present. The products have fungicidal properties. Compounds prepared include tri-butyl tin polyglycollato chloride, dibutyl tin bis-(polyglycollato-chloride), dibutyl tin bis-(polyglycollato acetate), triphenyl tin #x-polyglycollato chloride, triphenyl tin polyglycollate and tri-cyclo-hexyl tin polyglycollato chloride.

    Polymeric stannonic acid stabilized polymers containing vinyl chloride
    5.
    发明授权
    Polymeric stannonic acid stabilized polymers containing vinyl chloride 失效
    含有氯乙烯的聚合的斯诺酸稳定的聚合物

    公开(公告)号：US3021302A

    公开(公告)日：1962-02-13

    申请号：US78949659

    申请日：1959-01-28

    Applicant: HOECHST AG

    Inventor： HELMUT FREY HANS ,  CHRISTOPH DORFELT

    IPC: C08F2/00 ,  C08G79/00 ,  C08K5/57 ,  C08K5/58 ,  C08L27/06 ,  C08L85/00

    CPC classification number: C08K5/57 ,  C08G79/00 ,  C08K5/58 ,  C08L21/00 ,  C08L23/24 ,  C08L23/28 ,  C08L27/06 ,  C08L85/00 ,  C08L2666/14

    Abstract: Polymers of vinyl chloride are stabilized by the incorporation therein of 0,05 to 5 weight per cent of a stannonoic and/or thiostannonoic acid condensation product having the general formula (RSnO1,5)n or (RSnS1,5)n or (RSnO1,5)m. (RSnS1,5)n wherein R is a C1-20 alkyl, cycloalkyl or aryl group, and n or m+n is an integer from 2 to about 1,000, or of a mixture of such products. Their preparation is described in Specification 890,283. The polymers may be vinyl chloride homopolymers, copolymers of at least 50% vinyl chloride, and mixtures containing at least 50% of such polymers. Comonomers specified are vinylidene chloride, vinyl acetate and stearate, acrylates (e.g. butyl acrylate), maleates (e.g. dicetyl maleate), and mixtures thereof. Other polymers which may be mixed with the vinyl chloride polymers are synthetic rubbers, e.g. copolymers of butadiene with acrylonitrile and/or styrene, and chlorinated or sulphochlorinated polyolefines or mixtures thereof. The stabilizers may be mixed with known organo-tin or other stabilizers. Other ingredients which are included in exemplary compositions are dioctyl phthalate; a montan-wax based lubricant and calcium stearate-The examples contrast the effectiveness of compounds of the above formulae wherein R is methyl, butyl, octyl or phenyl with that of di. butyl-tin-bis-thioglycolic acid (2-ethyl-hexyl) ester in polyvinyl chloride, copolymers of vinyl chloride with vinyl acetate (13%), dicetyl maleate (25%) or butyl acrylate (30%), and mixtures of polyvinyl chloride with 15% of a terpolymer of butadiene/styrene (17%)/acrylonitrile (10%) and with 20% of a chlorinated low pressure polyolefine containing 40% chlorine. Specification 854,089 also is referred to.

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