Patent GB-777773-A (GB)
Title: Oleaginous compositions
IPC: C08F8/12
Filed: 1955-05-09
Abstract: A polymer has a linear hydrocarbon chain bearing a plurality of non-polar and polar substituents, the non-polar substituents being hydrocarbon radicals of at least eight carbon atoms and the polar substituents being groups containing a nitrogen or oxygen atom. The polymer may be prepared by copolymerizing an alpha-olefin with an unsaturated polymerizable compound containing the required polar substituent, e.g. acrylamide, or a polar substituent, e.g. a vinyl halide or vinyl ester, which is then converted into the required polar substituent, e.g. by hydrolysis or alcoholysis. Specified alpha-olefins amongst a large group are alpha-tetradecene, alpha-hexadecene and alpha-octadecene. Instead of acrylamide, acrylonitrile, methacrylonitrile, alpha-ethyl, or -propyl acrylonitrile, and homologues and acrylic acid may be used. Specified vinyl esters are the acetate, propionate, butyrate and benzoate.  The copolymerization may take place using as catalysts diethyl, t-butyl, dibenzoyl, dicyclobenzyl, dimethylthienyl, dilauroyl or urea peroxides, sodium bisulphite, diethyl sulphoxide, ammonium persulphate and the alkali metal perborates.  Specifications 571,708, [Group IV], 644,043, 645,345, 666,064, [all in Group IV (b)], and U.S.A. Specifications 2,316,080, 2,316,082, 2,316,086, 2,344,393, 2,358,305, 2,421,971, 2,436,926, 2,467,774, 2,540,084, 2,551,643 and 2,662,856 are referred to.ALSO:An oleaginous composition comprises a major proportion of an organic oleaginous material, a minor proportion of (1) a compound with a molecular weight of at least 1,000 and having a linear hydrocarbon chain bearing a plurality of non-polar and polar substituents, said non-polar substituents being hydrocarbon radicals of at least eight carbon atoms and said polar substituents being groups containing a nitrogen or oxygenatom, and a minor proportion of (2) an oil soluble organic compound containing a phosphorus and/or a sulphur atom. Specified oleaginous materials are hydrocarbon oils, e.g. mineral oil which may be blended with fatty oils, e.g. castor oil and lard oil, synthetic lubricating oils, e.g. polymerized olefins, copolymers of alkylene glycols and alkylene oxides, organic esters of polybasic acids, e.g. di (2-ethylhexyl) sebacate, dioctyl phthalates, trioctyl phosphate, polymeric tetrahydrofuran and polyalkyl silicone polymers, e.g. dimethyl silicone polymers and fuel oil.  Ingredient (1) may be a copolymer of an alpha-olefin with another suitable unsaturated polymerizable compound (see Group IV(a)).  Ingredient (2) may contain a radical of an inorganic acid of phosphorous or a sulphide or sulphonate radicle or any combination of these radicles.  In particular, it may be a reaction product of a phosphorous sulphide with an olefin or terpene or it may be a metal salt, for example a salt of an organic acid phosphate or thiophosphate or a petroleum sulphonate.  In the case of a lubricating oil composition, the oil may be thickened to a grease consistency by a soap or an inorganic colloid such as silica.  In the examples, ingredient (3) is chosen from P2S5-treated pinene, zinc dimethyl cyclohexyl dithiophosphate, ethylene bis (tolylsulphide), calcium petroleum sulphonate and diphenol sulphide.  Specifications 571,708 [Group IV], 644,043 645,345, 666,064, and U.S.A. Specifications 2,316,080, 2,316,082, 2,316,086, 2,344,393, 2,358,305, 2,421,971, 2,436,926, 2,467,774, 2,540,084, 2,551,643 and 2,662,856 are referred to.