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    Free flowing elastomer pellets and process for their preparation
    2.
    发明授权
    Free flowing elastomer pellets and process for their preparation 失效
    自由流动弹性体颗粒及其制备方法

    公开(公告)号：US3791913A

    公开(公告)日：1974-02-12

    申请号：US3791913D

    申请日：1971-05-17

    Applicant: EXXON RESEARCH ENGINEERING CO

    Inventor： VER STRATE G ,  KRESGE E

    IPC: C08J3/12 ,  C08J3/24 ,  B32B33/00

    CPC classification number: C08J3/124 ,  C08J3/245 ,  C08J2321/00 ,  Y10T428/2998 ,  Y10T428/31917 ,  Y10T428/31924

    Abstract: Free flowing pellets of substantially unvulcanized elastomeric polymers having a cured surface are prepared by exposing the pellets to a curing medium for said elastomer for sufficient time to allow vulcanization of the exterior portions of the pellet; i.e., so that the pellet is cured to a maximum depth of about one-tenth of the diameter of its smallest dimension.

    Abstract translation: 通过将颗粒暴露于用于所述弹性体的固化介质足够的时间以允许颗粒的外部部分硫化来制备具有固化表面的基本上未硫化的弹性体聚合物的自由流动的颗粒; 即使得颗粒固化到其最小尺寸直径的十分之一的最大深度。

    8.
    发明专利
    未知

    公开(公告)号：SE358650B

    公开(公告)日：1973-08-06

    申请号：SE1045569

    申请日：1969-07-24

    Applicant: EXXON RESEARCH ENGINEERING CO

    Inventor： JACOBSON N ,  BROWNAWELL D ,  KRESGE E

    IPC: C08F210/00 ,  C10M143/02 ,  C10M1/18

    Abstract: 1,246,880. Ethylene polymers with specific properties. ESSO RESEARCH & ENG. CO. 25 July, 1969 [30 June, 1969], No. 37477/69. Addition to 1,239,083. Heading C3P. [Also in Division C5J A polymer comprises ethylene and a C 3 _ 18 alphaolefin, and optionally up to 10 mole per cent of a C 4-18 alphaolefin or a C 6-28 non-conjugated diolefin, having (a) an ethylene content of 60 to 80 mole per cent and no more than 1À3% of a polymer fraction which is insoluble in normal decane at 45‹ C., (b) a degree of crystallinity less than 25%, (c) an #M w /#M n ratio less than 4À0, and (d) a viscosity average molecular weight of 10,000 to 200,000. The polymers may be obtained using VOX 3 /R 3 Al 2 X 3 /H 2 where X is halide, preferably chloride, and R is alkyl, preferably ethyl. The polymers may be used as additives to lubricating oils, particularly in the form of a concentrate comprising a hydrocarbon solution thereof.

    10.
    发明专利
    未知

    公开(公告)号：SE328998B

    公开(公告)日：1970-09-28

    申请号：SE1309564

    申请日：1964-10-30

    Applicant: EXXON RESEARCH ENGINEERING CO

    Inventor： KRESGE E

    IPC: C08F255/06 ,  C09D151/06 ,  C08F25/00

    Abstract: In a graft terpolymer which consists of a terpolymer and at least one grafted monomer and which is sulphur-curable to an elastomeric oil- and solvent-resistant vulcanizate, the terpolymer consists of at least 20 weight per cent ethylene, at least 15 weight per cent of a C3-C10 aliphatic alpha olefin, and at least 0.01 moles per 100 g. of said terpolymer and not over 20 weight per cent thereof of a non-conjugated diolefin, and the graft monomer is a polar ethylenically unsaturated free-radical polymerizable compound containing one or more hetero-atoms in the molecule and preferably constituting 0.5-35 weight per cent of the total graft terpolymer. The graft monomer may be a C4-C8 unsaturated ester (e.g. the methyl or ethyl esters of acrylic, methacrylic, and alpha-chloroacrylic acids), a C3-C6 unsaturated nitrile (e.g. acrylonitrile, methacrylonitrile), C2-C5 unsaturated halides (e.g. vinyl chloride, vinylidene chloride), C4-C6 vinyl esters (e.g. acetate), vinyl ethers, vinyl pyridine, C3-C6 allyl compounds (e.g. allyl acetate, allyl alcohol, allyl chloride, methallyl acetate, allyl amine), ethylene maleate, maleic anhydride, acrylamide, methacrylamide, diethylaminoacrylamide, diethylaminoethyl acrylate, sodium vinyl sulphonate, and C5-C8 unsaturated silanes. The non-conjugated diolefin may have 6-15 carbon atoms and may be dicyclopenta-2-diene, tetrahydroindene, 5 - methylene - 2 - norbornene, 5-vinyl-2-norbornene, 5(31-butene)-norbornene, 2 - methyl - norbornadiene, 2,4-dimethyl - 2,7 - octadiene, 11 - ethyl - 1,11-tridecadiene, 3 - methallyl cyclopentene, 1,4-hexadiene, and 3 - (21 - methyl - 1 - propene) cyclopentene. A number of alpha olefins are mentioned (propylene 5,6,6-trimethyl-1-heptene &c.). The graft copolymer is made by reacting said terpolymer at an elevated temperature with a free-oxygen-containing substance in the presence of a non-peroxidic free-radical initiator thereby forming a terpolymer hydroperoxide, lowering the temperature of the reaction mixture to below the decomposition temperature of said initiator, then contacting the mixture with said polar ethylenically unsaturated free-radical polymerizable compound containing one or more hetero-atoms in the molecule. The free-oxygen containing substance may be oxygen, and the initiator an organic azo compound. The terpolymer hydroxide may be at least partly decomposed by contacting with a redox substance prior to contacting it with said unsaturated compounds. A preferred embodiment comprises reacting the said terpolymer at about 60-90 DEG C. with a free-oxygen-containing gas in the presence of azobisisobutyronitrile, thereby forming hydroperoxide groups along the main chains of the macromolecules in said terpolymer, cooling the resulting mixture to 10-50 DEG C., contacting the mixture with an iron salt and an organic reducing agent thereby at least partly decomposing the hydroperoxide groups along the main chains of said macromolecules, and contacting the reaction mixture with excess acrylonitrile until the terpolymer contains at least 0.5 weight per cent combined acrylonitrile, and recovering said terpolymer essentially free of polyacrylonitrile.ALSO:A coating for wires and cables and a lining for metal or plastic pipes comprises a vulcanized graft terpolymer. The graft terpolymer consists of a terpolymer and at least one grafted monomer, said terpolymer consisting of at least 20 wt. % ethylene, at least 15 wt.% of a C3-C10 aliphatic alpha olefin, and at least 0.01 gram moles per 100 grams of said terpolymer and not over 20 wt. % thereof of a nonconjugated diolefin, said graft monomer being a polar ethylenically unsaturated free-radical polymerisable compound containing one or more hetero-atoms in the molecule. The graft monomer may be a C4-C8 unsaturated ester (e.g. the methyl or ethyl esters of acrylic, methacrylic, and alpha-chloroacrylic acids), a C3-C6 unsaturated nitrile (e.g. acrylonitrile, methacrylonitrile), C2-C5 unsaturated halides (e.g. vinyl chloride, vinylidene chloride), C4-C6 vinyl esters (e.g. acetate), vinyl ethers, vinyl pyridine, C3-C6 allyl compounds (e.g. allylacetate, allyl alcohol, allyl chloride, methallyl acetate, allyl amine), ethylene maleate, maleic anhydride, acrylamide, methacrylamide, diethylaminoacrylamide, diethylaminoethyl acrylate, sodium vinyl sulphonate, and C5-C8 unsaturated silanes. The non-conjugated diolefin may have 6-15 carbon atoms and may be dicyclopentadiene, tetrahydroindene, 5-methylene-2-norbornene, 5-vinyl-2-norbornene, 5(3\sv-butene)-2-norbornene, 2-methyl-norbornadiene, 2,4-dimethyl-2,7-octadiene, 11-ethyl-1, 11-tridecadiene, 3-methallyl cyclopentene, 1,4-hexadiene, and 3(2\sv-methyl-1-propene)cyclopentene. A number of alpha olefins are specified (propylene, 5,6,6-trimethyl-1-heptene &c.).

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