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    HORIZONTAL REACTOR FOR THE VAPOR PHASE POLYMERIZATION OF MONOMERS
    2.
    发明专利
    HORIZONTAL REACTOR FOR THE VAPOR PHASE POLYMERIZATION OF MONOMERS 未知

    公开(公告)号：CA1053846A

    公开(公告)日：1979-05-01

    申请号：CA241716

    申请日：1975-12-15

    Applicant: STANDARD OIL CO OHIO

    Inventor： JEZL JAMES L ,  PETERS EDWIN F

    IPC: B01J8/18 ,  B01J8/36 ,  B01J8/38 ,  C08F2/00 ,  C08F10/00 ,  C08F110/02 ,  C08F210/16 ,  C08F2/34

    Abstract: Apparatus for the vapor phase polymerization of at least one polymerizable monomer comprising: (a) a horizontal, stirred reactor of substantially circular cross section containing a centrally-located drive shaft extending longitudinally through said reactor to which are attached a plurality of adjacently located paddles, which paddles cause essentially no forward or backward movement of the particulate matter contained in said reactor and extend transversely within and to a short distance from the internal surfaces of said reactor, said reactor being divided into two or more individually polymerization-temperature controllable polymerization sections by one or more barriers constructed to allow free gas mixing within said reactor and control particulate movement between said sections:(b) driving means for said drive shaft; (c) one or more outlets for removal of reactor off-gases situated along the topward part of said reactor; (d) one or more vapor recycle inlets situated along the bottomward portion of said reactor for the introduction of said at least one monomer; (e) one or more catalyst addition inlets situated along said reactor; (f) a plurality of quench liquid inlets situated along the topward part of said reactor whereby quench liquid may be introduced into said polymerization sections of said reactor; and (g) a particulate matter take-off at one end of said reactor.

    STABILIZATION OF POLYPROPYLENE
    3.
    发明专利
    STABILIZATION OF POLYPROPYLENE 未知

    公开(公告)号：CA939438A

    公开(公告)日：1974-01-01

    申请号：CA782747

    申请日：1959-09-18

    Applicant: STANDARD OIL CO INDIANA

    Inventor： CASEY JOHN A ,  JEZL JAMES L ,  HAGUE LOUISE D

    IPC: B29C63/18 ,  C08K5/00 ,  C08K5/13 ,  C08L23/12

    Abstract: Polypropylene is stabilized with a composition comprising (a) a hundred phenol selected from 2, 4, 6 - trialkyl phenols, and phenols of the formula, where B is a radical selected from the group consisting of and wherein n is 0 to 8, one A on each ring is a hydroxyl group and the other is R1, X is selected from R and hydroxyl, R is a 1-16 hydrocarbon radical, and R1 is R or hydrogen, and (b) a thio compound selected from (1) metal dialkyl dithiocarbamates of the general formula where M is a Group IIa metal and R1 and R2 are hydrocarbon radicals of 1 to 6 carbon atoms, (2) trialkyl trithiophosphites, (3) thioethers of carboxylic acid esters of the formula, where r is a hydrocarbon radical, and n is an integer from 1 to 6, and (4) thioethers of the formula R-S-R, where R is a hydrocarbon radical. Components (a) and (b) are each present in the composition in an amount of 0,005 to 2 parts by weight. The composition may also include an epoxy resin such as one made by the condensation of a bisphenol and epichlorohydrin. TThe Specification mentions a large number of suitable ingredients for the composition. Compositions exemplified are (1) two ingredient systems consisting of 2,21-methylene-bis-(4-ethyl-6-t-butyl phenol) and zinc dibutyl dithiocarbamate, or dilauryl thiodipropionate, or dihexadecyl sulphide, 4,41\-methylene-bis-(2,6-di-t-butyl-phenol and dilauryl thiodipropionate, bis(2-hydroxy-3-t-butyl-5-methylphenylmethyl) durene and dilauryl thiodipropionate, or trilauryl trithiophosphite, 2-6-bis(2-hydroxy-3-t-butyl-5-methyl benzyl) 4,methyl phenol, and dilauryl thiodipropionate, 2,6-and zinc dibutyl di-thiocarbamate, or dilauryl thiodipropionate, or trilauryl trithiophosphite, or dihexadecyl sulphide, (2) three ingredient systems consisting of 2,21-methylene-bis(4-ethyl-6-t-butyl phenol) zinc dibutyl thiocarbamate, and calcium stearate or barium-cadmium laurate, 2,6-di-t-butyl-p-cresol, calcium stearate and dilauryl thiodipropionate or zinc dibutyl dithio carbamate, 4,41-methylene-bis(2,6-di-t-butyl phenol, dilauryl thiodipropionate, and calcium stearate or barium-cadmium laurate, 2,6-bis(2-hydroxy-3-t-butyl-5-methyl benzyl)-4-methyl phenol, trilauryl trithio phosphite, and butyl epoxy stearate, bis(2-hydroxy-3-t-butyl-5-methyl phenyl methyl) durene, dilauryl thiodipropionate, and calcium stearate, and (3) four ingredient systems consisting of 2,21-methylene-bis-(4-ethyl-6-t-butyl phenol) or 4,41-methylene-bis(2,6-di-t-butyl phenol, calcium stearate, an epoxy resin, and dilauryl thiodi-propionate or dihexadecyl sulphide, and 2,6-di-t-butyl-p-cresol, dihexadecyl sulphide, calcium stearate, and an epoxy resin. Polypropylene stabilized with the above compositions is stated to be resistant to heat degradation for periods in excess of 400 hours at 280 DEG F.

    DIVIDED HORIZONTAL REACTOR FOR THE VAPOR PHASE POLYMERIZATION OF MONOMERS AT DIFFERENT HYDROGEN LEVELS
    7.
    发明专利
    DIVIDED HORIZONTAL REACTOR FOR THE VAPOR PHASE POLYMERIZATION OF MONOMERS AT DIFFERENT HYDROGEN LEVELS 未知

    公开(公告)号：CA1053848A

    公开(公告)日：1979-05-01

    申请号：CA241719

    申请日：1975-12-15

    Applicant: STANDARD OIL CO

    Inventor： SHEPARD JOHN W ,  JEZL JAMES L ,  PETERS EDWIN F ,  HALL ROBERT D

    IPC: B01J8/10 ,  B01J8/18 ,  B01J8/36 ,  B01J8/38 ,  B01J19/18 ,  C08F10/00 ,  C08F110/02 ,  C08F210/16 ,  C08F2/34

    Abstract: Apparatus for the vapor phase polymerization of at least one polymerizable monomer comprising: (a) a horizontal reactor of substantially circular cross-section containing a centrally-located drive shaft extending longitudinally through said reactor to which are attached a plurality of adjacently located paddles, which paddles cause essentially no forward or backward movement of the particulate matter contained in said reactor and extend transversely within and to a short distance from the internal surfaces of said reactor, said reactor being divided into two or more individually gas-composition-controllable and polymerization-temperature-controllable polymerization compartments, by one or more dividing structures so constructed to control gas intermixing and movement of said particulate matter between said compartments; (b) driving means for said drive shaft; (c) one or more reactor off-gas outlets in each of said compartments spaced along the topward part of said reactor; (d) one or more vapor recycle inlets in each of said compartments spaced along the bottomward portion of said reactor: (e) one or more catalyst addition inlets in each of said compartments spaced along said reactor (f) a plurality of quench liquid inlets spaced along the topward part of said reactor whereby quench liquid can be introduced into said two or more compartments and (g) takeoff means for said particulate matter at one and of said reactor.

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