51.
    发明专利
    未知

    公开(公告)号:ES2087238T3

    公开(公告)日:1996-07-16

    申请号:ES91300317

    申请日:1991-01-16

    Applicant: MOBIL OIL CORP

    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.

    52.
    发明专利
    未知

    公开(公告)号:DK0441485T3

    公开(公告)日:1996-06-10

    申请号:DK91300317

    申请日:1991-01-16

    Applicant: MOBIL OIL CORP

    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.

    53.
    发明专利
    未知

    公开(公告)号:NO973583L

    公开(公告)日:1991-07-17

    申请号:NO973583

    申请日:1997-08-04

    Applicant: MOBIL OIL CORP

    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.

    54.
    发明专利
    未知

    公开(公告)号:NO973582L

    公开(公告)日:1991-07-17

    申请号:NO973582

    申请日:1997-08-04

    Applicant: MOBIL OIL CORP

    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.

    56.
    发明专利
    未知

    公开(公告)号:NO910161L

    公开(公告)日:1991-07-17

    申请号:NO910161

    申请日:1991-01-15

    Applicant: MOBIL OIL CORP

    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.

    Vulcanizable Liquid Copolymer
    58.
    发明专利

    公开(公告)号:IE910123A1

    公开(公告)日:1991-07-17

    申请号:IE12391

    申请日:1991-01-15

    Applicant: MOBIL OIL CORP

    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.

    59.
    发明专利
    未知

    公开(公告)号:FI910214A

    公开(公告)日:1991-07-17

    申请号:FI910214

    申请日:1991-01-15

    Applicant: MOBIL OIL CORP

    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.

    60.
    发明专利
    未知

    公开(公告)号:NO910162D0

    公开(公告)日:1991-01-15

    申请号:NO910162

    申请日:1991-01-15

    Applicant: MOBIL OIL CORP

    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.

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