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    Polyvinyl chloride organosol compositions containing a non-volatile extract of petroleum
    13.
    发明授权
    Polyvinyl chloride organosol compositions containing a non-volatile extract of petroleum 失效
    含有非挥发性石油萃取物的聚氯乙烯有机溶胶组合物

    公开(公告)号：US2615858A

    公开(公告)日：1952-10-28

    申请号：US14270050

    申请日：1950-02-06

    Applicant: SHELL DEV

    Inventor： WINKLER DE LOSS E

    IPC: C08K5/01 ,  C08K5/12 ,  C08L27/06

    CPC classification number: C08K5/01 ,  C08K5/0016 ,  C08K5/12 ,  C08L27/06 ,  C08L31/00 ,  C08L91/00 ,  C08L2666/26

    Abstract: An organosol comprises a finely-divided thermoplastic vinyl chloride polymer containing at least 90 per cent vinyl chloride of molecular weight above 20,000 suspended in a liquid consisting of (1) volatile liquid hydrocarbons boiling within the range 35 DEG to 250 DEG C.; (2) an ester plasticizer; and (3) a product obtained by extracting petroleum with a non-reactive, highly polar solvent, e.g. Edeleanu, the ester and extract each boiling above 125 DEG C. at 1 millimetre pressure, and the hydrocarbons being present in an amount between 50 and 300 parts per 100 parts of polymer, the ester in an amount between 40 and 150 parts per 100 parts of polymer and the extract in an amount between 20 per cent of the ester and a proportion which is just less than that at which the mixture of extract and ester ceases to be compatible with the polymer. The polymers may be homopolymers of vinyl chloride and copolymers with vinyl acetate, vinyl propionate, vinylidene chloride, methyl vinyl ether, acrylonitrile and methyl acrylate. The hydrocarbons may be mixtures of benzene, toluene, xylene, naphthenic hydrocarbons, pentane, hexane, octane, nonane, decane, cyclopentane, methylcyclopentane, cyclohexane, and petroleum distillates. Specified esters are tricresyl, tritolyl, trioctyl, and tributoxy ethyl phosphates, dibutyl, di-s-butyl, diamyl, dicyclohexyl, dioctyl, di-(2-ethylhexyl), dibenzyl, dicyclopentyl, diallyl and dimethallyl phthalates, butyrin, dibutyl diglycollate, dibutyl adipate, dibutyl sebacate, dibenzyl sebacate, dioctyl fumarate, dioctyl maleate, butyl acetylricinoleate, butyl phthalate, butyl glycollate, triethylene glycol dioctanoate, dibutyl "Cellosolve" (Registered Trade Mark) and carbitol phthalates and polydiethylene glycol sebacate. The organosols may include small amounts of other solvents such as butyl acetate, methyl ethyl ketone, methyl isobutyl ketone, mesityl oxide, cyclohexanone and/or isophorone, small amounts of low molecular weight vinyl chloride-vinyl acetate copolymers, or methyl acrylate or methacrylate polymers as well as pigments, dyes, waxes and polymer stabilizing agents. The organosols may be converted into self-supporting films or used to coat surfaces such as cotton fabrics.

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