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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Sun; Qun
Address:
Wilmington, DE
No. of patents:
23
Patents:












Patent Number Title Of Patent Date Issued
8017660 Process for dissolution of highly fluorinated ion-exchange polymers September 13, 2011
Highly fluorinated ion-exchange polymers achieve dissolution in aqueous tetrahydrofuran at lower pressures and temperatures than in other solvents, with few or no side products being formed.
6933257 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide August 23, 2005
Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity.
6849768 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide February 1, 2005
Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity.
6809218 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide October 26, 2004
Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity.
6784331 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide August 31, 2004
Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity.
6680406 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide January 20, 2004
Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity.
6586640 Decomposition of organic hydroperoxides in the presence of a particulate catalyst containing hig July 1, 2003
A process for the manufacture of a hydroxy-substituted organic compound comprising decomposing an organic hydroperoxide, preferably a compound of the formula Ar--C(CH.sub.3).sub.2 O.sub.2 H, wherein Ar is a substituted or unsubstituted mononuclear or polynuclear aromatic group. The d
6534690 Process for the preparation of spherically shaped microcomposites March 18, 2003
A process for the preparation of at least one spherically shaped porous microcomposite is provided which microcomposite comprises a perfluorinated ion-exchange polymer containing pendant sulfonic and/or carboxylic acid groups entrapped within and highly dispersed throughout a network of
6515190 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide February 4, 2003
Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity.
6281400 Process for preparation of a catalytic microcomposite from a silicate and a highly fluorinated i August 28, 2001
The present invention relates to a process for preparing a microcomposite comprising a highly fluorinated ion-exchange polymer containing pendant sulfonate functional groups, said polymer existing as aggregated particles entrapped within and dispersed throughout a network of silica. Due
6262326 Process for the preparation of spherically shaped microcomposites July 17, 2001
A process for the preparation of at least one spherically shaped porous microcomposite is provided which microcomposite comprises a perfluorinated ion-exchange polymer containing pendant sulfonic and/or carboxylic acid groups entrapped within and highly dispersed throughout a network of
6248930 Fluorine-modified perfluorinated ion-exchange microcomposite catalysts June 19, 2001
This invention concerns fluorine-modified perfluorinated ion-exchange microcomposites, comprising a perfluorinated ion-exchange polymer containing pendant sulphonic acid groups and/or carboxylic acid groups, entrapped within and highly dispersed throughout a network of inorganic oxid
6169053 Silylated perfluorinated ion-exchange microcomposite catalysts January 2, 2001
This invention concerns a silylated porous microcomposite comprising a perfluorinated ion-exchange polymer entrapped within and highly dispersed throughout a network of inorganic oxide wherein the network and optionally the polymer have been modified with a silylating agent. These silyla
6160190 Alkylation of aromatic compounds using a sol-gel derived porous microcomposite of perfluorinated December 12, 2000
Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity. The microcomposites catalyze, among others, the
6133493 Perfluorinated ion-exchange microcomposite catalysts modified with Lewis acid October 17, 2000
This invention concerns a modified porous microcomposite comprising a perfluorinated ion-exchange polymer entrapped within and highly dispersed throughout a network of inorganic oxide wherein the network and optionally the pendant groups of the polymer have been modified with a Lewis aci
6107233 Process for the preparation of spherically shaped microcomposites August 22, 2000
A process for the preparation of at least one spherically shaped porous microcomposite is provided which microcomposite comprises a perfluorinated ion-exchange polymer containing pendant sulfonic and/or carboxylic acid groups entrapped within and highly dispersed throughout a network of
6034290 Porous microcomposite of metal cation exchanged perfluorinated ion-exchange polymer and network March 7, 2000
Porous microcomposites comprising a perfluorinated ion-exchange polymer (PFIEP) containing pendant metal cation exchanged sulfonate groups, metal cation exchanged carboxylate groups, or metal cation exchanged sulfonate and carboxylate groups, wherein the metal cation may be ligand co
6001762 Reactivation of perfluorinated ion-exchange microcomposite catalysts December 14, 1999
Catalyst comprising a perfluorinated ion-exchange microcomposite can be reactivated upon contact with at least one cleaning agent, such as an oxidizing agent, organic solvent, supercritical fluid or detergent. The process may further comprise heating prior to, during or after contact
5958822 Modified fluorosulfonic acids September 28, 1999
This invention concerns modified fluorosulfonic acid compounds possessing a sulfonic acid fluoride, chloride or ester group or a sulfonic acid or a salt of a sulfonic acid group at one end and respectively a hydrolyzable or hydrolyzed silane group at the other end, said sulfonic group be
5948946 Use of sol-gel derived porous microposite of perfluorinated ion-exchange polymer and metal oxide September 7, 1999
Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using a sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity. Isomerization of terminal olefins is possible with
5932511 Perfluorinated ion-exchange microcomposite catalysts modified with Lewis acid August 3, 1999
This invention concerns a modified porous microcomposite comprising a perfluorinated ion-exchange polymer entrapped within and highly dispersed throughout a network of inorganic oxide wherein the network and optionally the pendant groups of the polymer have been modified with a Lewis aci
5916837 Porous microcomposite of metal cation exchanged perfluorinated ion-exchanged polymer and network June 29, 1999
Porous microcomposites comprising a perfluorinated ion-exchange polymer (PFIEP) containing pendant metal cation exchanged sulfonate groups, metal cation exchanged carboxylate groups, or metal cation exchanged sulfonate and carboxylate groups, wherein the metal cation may be ligand co
5824622 Porous microcomposite of perfluorinated ion-exchange polymer and metal oxide, a network of silic October 20, 1998
Porous microcomposites comprising a perfluorinated ion-exchange polymer (PFIEP) containing pendant sulfonic acid and/or carboxylic acid groups entrapped within and highly dispersed throughout a network of metal oxide, a network of silica, or a network of metal oxide and silica are prepar










 
 
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