| Patent Number |
Title Of Patent |
Date Issued |
| 5629394 |
Direct synthesis by living cationic polymerization of nitrogen-containing polymers |
May 13, 1997 |
| A method is provided for the direct synthesis by living cationic polymerization of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino, cyanato, thiocyanato or thiocarbonylamino groups. Polymerizat |
| 5607890 |
Supported Lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactio |
March 4, 1997 |
| A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon a least |
| 5563313 |
Immobilized Lewis Acid catalysts |
October 8, 1996 |
| Immobilized Lewis Acid catalyst comprising polymer having at least one Lewis Acid immobilized within the structure therein, said polymer having monomer units represented by the structural formula:wherein a represents about 1 to about 99 mole %b represents about 0 to about 50 mole %c represen |
| 5561095 |
Supported lewis acid catalysts for hydrocarbon conversion reactions |
October 1, 1996 |
| A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon at leas |
| 5481054 |
Immobilized Lewis Acid catalysts |
January 2, 1996 |
| Immobilized Lewis Acid catalyst comprising polymer having at least one Lewis Acid immobilized within the structure therein, said polymer having monomer units represented by the structural formula:whereina represents about 1 to about 99 mole %b represents about 0 to about 50 mole %c represent |
| 5444135 |
Direct synthesis by living cationic polymerization of nitrogen-containing polymers |
August 22, 1995 |
| A method is provided for the direct synthesis by living cationic polymerization of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino, cyanato, thiocyanato or thiocarbonylamino groups. Polymerizat |
| 5414177 |
Immobilized Lewis acid catalysts |
May 9, 1995 |
| Immobilized Lewis acid catalysts comprising a polymer having at least one Lewis acid immobilized within the polymer structure, said polymer having the monomer units represented by the structural formula: ##STR1## where D is OR', NH.sub.2, NHR', OM' or OM"; E is at least one Lewis aci |
| 5336745 |
Terminally-substituted polymeric compositions from cationically polymerizable monomers and initi |
August 9, 1994 |
| A method is provided for the direct synthesis of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino or thiocarbonylamino groups. Polymerization and functionalization occur in a substantially simultane |
| 5326921 |
AlCl.sub.3 -catalyzed process for preparing poly-N-butenes from mixed butenes |
July 5, 1994 |
| Poly-n-butene is prepared from a mixed C.sub.4 hydrocarbon feedstream containing less than about 5 wt. % isobutylene using an AlCl.sub.3 -HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the feedstream. Polymer product having |
| 5288677 |
Immobilized Lewis acid catalysts |
February 22, 1994 |
| Immobilized Lewis Acid catalyst comprising polymer having at least one Lewis Acid immobilized within the structure therein, said polymer having monomer units represented by the structural formula: ##STR1## wherein a represents about 1 to about 99 mole % b represents about 0 to ab |
| 5268524 |
Preparation of linear alkyl aromatics |
December 7, 1993 |
| Essentially linear alkyl aromatics wherein the alkyl is attached to the aromatic ring at the .beta.-position are produced by the process wherein a linear hydrocarbon selected from the group consisting of linear .alpha.-olefins, linear .alpha.-substituted alkyl halides or linear .alph |
| 5262508 |
Process for preparing alkyl phenol-sulfur condensate lubricating oil additives |
November 16, 1993 |
| Additives for improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the alkylation of a phenol in the presence of a dipolar aprotic cosolvent to produce an essentially linear alkylated phenol which is condensated with a |
| 5177288 |
Polybutene process |
January 5, 1993 |
| Polybutene is prepared from a mixed C.sub.4 hydrocarbon feedstream using an organo-aluminum/HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the feedstream. Polybutene product having a very narrow molecular weight distribution is |
| 5118875 |
Method of preparing alkyl phenol-formaldehyde condensates |
June 2, 1992 |
| Additives of improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the alkylation of a phenol in the presence of a polar aprotic cosolvent to produce an essentially linear alkylated phenol which is condensed with an aldehy |
| 5032653 |
Direct synthesis by cationic polymerization of nitrogen-containing polymers |
July 16, 1991 |
| A method is provided for the direct synthesis of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino or thiocarbonylamino groups. Polymerization and functionalization occur in a substantially simultane |
| 5017279 |
Multistep process for the manufacture of novel polyolefin lubricants from sulfur containing ther |
May 21, 1991 |
| A multistep process is disclosed for the manufacture of synthetic lubricants from the C.sub.8 to C.sub.24 linear olefin components of below liquid fuel value petroleum distillate fractions derived via the high temperature thermal cracking of petroleum residua. Such feeds contain majo |
| 4952739 |
Organo-Al-chloride catalyzed poly-n-butenes process |
August 28, 1990 |
| Poly-n-butene is prepared from a mixed C.sub.4 hydrocarbon feedstream containing less than about 5 wt. % isobutylene using an organo-aluminum chloride-HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the feedstream. Polymer produc |
| 4935576 |
Polybutene process |
June 19, 1990 |
| Polybutene is prepared from a mixed C.sub.4 hydrocarbon feedstream using an organo-aluminum/HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the feedstream. Polybutene product having a very narrow molecular weight distribution is |
