PHTHALSÄUREALKYLESTERGEMISCHE MIT KONTROLLIERTER VISKOSITÄT
申请人:Oxeno Olefinchemie GmbH
公开号:EP1430014B1
公开(公告)日:2007-11-07
Process for hydrogenation of conjugated diene polymer
申请人:——
公开号:US20040082727A1
公开(公告)日:2004-04-29
A process for hydrogenation of a conjugated diene polymer. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in the conjugated diene units of the conjugated diene polymer. The hydrogenation catalyst composition includes: (I) a titanium compound; (II) a compound represented by formula (II):
1
wherein L is a Group IVB element, R is C
1
-C
12
alkyl or C
1
-C
12
cycloalkyl, X can be the same or different and is C
1
-C
12
alkyl, C
1
-C
12
alkoxy, C
1
-C
12
cycloalkoxy, halogen, or carbonyl; and (III) a trialkylaluminum compound.
Phthalic acid alkylester mixtures with controlled viscosity
申请人:——
公开号:US20040238787A1
公开(公告)日:2004-12-02
Mixture of isomeric dialkyl phthalates, where the viscosity of the mixture is controlled via the composition of the isomerically pure alcohols from which the phthalic ester mixture can be prepared.
Use of the mixtures.
Hydrogenation catalyst composition and process for hydrogenation of conjugated diene polymer
申请人:Lin Fu
公开号:US20060041079A1
公开(公告)日:2006-02-23
A process for hydrogenation of an unsaturated polymer. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in the conjugated diene units of the conjugated diene polymer. The hydrogenation catalyst composition includes: (a) a titanium compound; (b) a compound represented by formula (II) or formula (III):
wherein L
1
is a Group IVA element, L
2
is a Group IVA element, R
3
is C
1
-C
12
alkyl or C
1
-C
12
cycloalkyl, R
4
is C
2
-C
12
alkyl or C
3
-C
12
cycloalkyl, and X
1
, X
2
, and X
3
can be the same or different and are C
1
-C
12
alkyl, C
1
-C
12
alkoxy, C
1
-C
12
cycloalkoxy, phenyl, or phenoxy; and (c) a trialkylaluminum compound.