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    11.
    发明专利
    未知

    公开(公告)号：BR9913352A

    公开(公告)日：2001-09-25

    申请号：BR9913352

    申请日：1999-07-20

    Applicant: MOBIL OIL CORP

    Inventor： COOLBAUGH THOMAS SMITH ,  LOVELESS FREDERICK CHARLES ,  MARLIN JOHN EMORY II ,  MATTHEWS DEMETREOS NESTOR ,  SHIRAZI FAY PEDRAM

    IPC: C09K23/52 ,  C08F8/04 ,  C08F297/02 ,  C09K3/00

    Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified, and post treated. The dispersant substances include a copolymer of two different conjugated dienes, such as butadiene-isoprene-butadiene. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.

    Vulcanizable liquid copolymer
    13.
    发明专利
    Vulcanizable liquid copolymer 未知

    公开(公告)号：GR3020601T3

    公开(公告)日：1996-10-31

    申请号：GR960401960

    申请日：1996-07-23

    Applicant: MOBIL OIL CORP

    Inventor： COOLBAUGH THOMAS SMITH ,  LOVELESS FREDERICK CHARLES ,  MATTHEWS DEMETREOS NESTOR ,  RUDNICK LESLIE ROBERT

    IPC: C08F8/00 ,  C08F8/04 ,  C08F8/08 ,  C08F236/04 ,  C08F297/02

    Abstract: There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of at least one polymerized conjugated diene of at least five (5) carbon atoms, such as isoprene, and B is a block of a polymer of at least one conjugated diene, different from that used to polymerize the block I, of at least four (4) carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks is hydrogenated and therefore retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from a minor proportion of at least one aryl-substituted olefin, such as styrene, and a major proportion of at least one conjugated diene used to polymerize the block I, the second middle polymer block of at least one diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block. In this alternative copolymer, the middle block is also selectively hydrogenated, thereby leaving the terminal polymer blocks with a sufficient amount of their original unsaturation to vulcanize the copolymer. The polymers can be crosslinked or functionalized through the terminal blocks containing the vinyl unsaturation. There are also disclosed random linear and star-branched block and random copolymers made from the same monomers as the linear block copolymers. Also disclosed are methods of producing the polymers and selectively hydrogenating the aforementioned polymerized dienes.

    Solid block and random elastomeric copolymers
    14.
    发明专利
    Solid block and random elastomeric copolymers 未知

    公开(公告)号：AU649989B2

    公开(公告)日：1994-06-09

    申请号：AU6933791

    申请日：1991-01-15

    Applicant: MOBIL OIL CORP

    Inventor： COOLBAUGH THOMAS SMITH ,  LOVELESS FREDERICK CHARLES ,  MATTHEWS DEMETREOS NESTOR

    IPC: C08F8/00 ,  C08F8/04 ,  C08F236/04 ,  C08F297/02 ,  C08F297/04 ,  C08L53/00 ,  C08L53/02 ,  C08F236/08 ,  C08F297/00 ,  C08L9/00

    Abstract: There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a block of a polymer of a conjugated diene, different from that of formula (1), of at least 4 carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from an aryl-substituted olefin, such as styrene, and the conjugated diene used to polymerize the block I, the second middle polymer block of the diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block. In this alternative copolymer, the middle block is also selectively hydrogenated, thereby leaving the terminal polymer blocks with a sufficient amount of double bonds to vulcanize the copolymer. The polymers can be crosslinked or functionalized through the terminal blocks containing the vinyl unsaturation. There are also disclosed random and star-branched block and random copolymers made from the same monomers as the linear block copolymers. Also disclosed are methods of producing and selectively hydrogenating the polymers.

    15.
    发明专利
    未知

    公开(公告)号：BR9100181A

    公开(公告)日：1991-10-22

    申请号：BR9100181

    申请日：1991-01-16

    Applicant: MOBIL OIL CORP

    Inventor： COOLBAUGH THOMAS SMITH ,  LOVELESS FREDERICK CHARLES ,  MATTHEWS DEMETREOS NESTOR

    IPC: C08F8/00 ,  C08F8/04 ,  C08F236/04 ,  C08F297/02 ,  C08F297/04 ,  C08L53/00 ,  C08L53/02 ,  C08F293/00

    Abstract: There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a block of a polymer of a conjugated diene, different from that of formula (1), of at least 4 carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from an aryl-substituted olefin, such as styrene, and the conjugated diene used to polymerize the block I, the second middle polymer block of the diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block. In this alternative copolymer, the middle block is also selectively hydrogenated, thereby leaving the terminal polymer blocks with a sufficient amount of double bonds to vulcanize the copolymer. The polymers can be crosslinked or functionalized through the terminal blocks containing the vinyl unsaturation. There are also disclosed random and star-branched block and random copolymers made from the same monomers as the linear block copolymers. Also disclosed are methods of producing and selectively hydrogenating the polymers.

    16.
    发明专利
    未知

    公开(公告)号：NO910160D0

    公开(公告)日：1991-01-15

    申请号：NO910160

    申请日：1991-01-15

    Applicant: MOBIL OIL CORP

    Inventor： COOLBAUGH THOMAS SMITH ,  LOVELESS FREDERICK CHARLES ,  MATTHEWS DEMETREOS NESTOR

    IPC: C08F8/00 ,  C08F8/04 ,  C08F236/04 ,  C08F297/02 ,  C08F297/04 ,  C08L53/00 ,  C08L53/02 ,  C08F

    Abstract: There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a block of a polymer of a conjugated diene, different from that of formula (1), of at least 4 carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from an aryl-substituted olefin, such as styrene, and the conjugated diene used to polymerize the block I, the second middle polymer block of the diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block. In this alternative copolymer, the middle block is also selectively hydrogenated, thereby leaving the terminal polymer blocks with a sufficient amount of double bonds to vulcanize the copolymer. The polymers can be crosslinked or functionalized through the terminal blocks containing the vinyl unsaturation. There are also disclosed random and star-branched block and random copolymers made from the same monomers as the linear block copolymers. Also disclosed are methods of producing and selectively hydrogenating the polymers.

    17.
    发明专利
    未知

    公开(公告)号：FI910214A0

    公开(公告)日：1991-01-15

    申请号：FI910214

    申请日：1991-01-15

    Applicant: MOBIL OIL CORP

    Inventor： COOLBAUGH THOMAS SMITH ,  LOVELESS FREDERICK CHARLES ,  MATTHEWS DEMETREOS NESTOR

    IPC: B01J31/12 ,  B01J37/16 ,  C07B61/00 ,  C07C5/05 ,  C07C11/02 ,  C08F8/04 ,  C08F

    Abstract: There is disclosed a highly selective hydrogenation catalyst composition synthesized by adding an organometallic reducing agent, e.g., triethylaluminum, to a transition metal compound, e.g., nickel (II) octoate. The catalyst composition is synthesized either by adding the organometallic reducing agent to the transition metal compound, in that order, as rapidly as possible, or by adding the reducing agent and the transition metal compound, separately but substantially simultaneously, at substantially constant molar ratios to the catalyst synthesis vessel. The catalyst composition is subtantially more selective in hydrogenating mono-substituted and symmetrically disubstituted polymer double bonds in the presence of unsymmetrically disubstituted double bonds and double bonds having three or more substituents, and substantially more stable over extended periods of time at ambient conditions than prior art catalysts.

    Selectively hydrogenated polymer compositions: polybutadiene-isoprene-polybutadiene
    18.
    发明专利
    Selectively hydrogenated polymer compositions: polybutadiene-isoprene-polybutadiene 未知

    公开(公告)号：AU753437B2

    公开(公告)日：2002-10-17

    申请号：AU5080899

    申请日：1999-07-20

    Applicant: MOBIL OIL CORP

    Inventor： COOLBAUGH THOMAS SMITH ,  LOVELESS FREDERICK CHARLES ,  MARLIN JOHN EMORY ,  MATTHEWS DEMETREOS NESTOR ,  SHIRAZI FAY PEDRAM

    IPC: C09K23/52 ,  C08F8/04 ,  C08F297/02 ,  C09K3/00

    Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified, and post treated. The dispersant substances include a copolymer of two different conjugated dienes, such as butadiene-isoprene-butadiene. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.

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