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Class Information
Number: 502/164
Name: Catalyst, solid sorbent, or support therefor: product or process of making > Catalyst or precursor therefor > Organic compound containing > Organic phosphorus or nitrogen, except the ammonium ion > Quaternary ammonium or phosphonium
Description: Composition in which the nitrogen or phosphorus has four valence satisfied by organic moieties.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5550168 |
Process for producing modified polyisocyanurate foams |
Aug. 27, 1996 |
| 5527875 |
Process for producing aromatic polycarbonate |
Jun. 18, 1996 |
| 5512696 |
Hydrocyanation process and multidentate phosphite and nickel catalyst composition therefor |
Apr. 30, 1996 |
| 5492875 |
Catalyst for nucleophilic aromatic substitutions |
Feb. 20, 1996 |
| 5449653 |
Catalysts and processes useful in producing 1,3-diols and/or 3-hydroxyaldehydes |
Sep. 12, 1995 |
| 5391661 |
Process for producing a styrenic polymer and a catalyst for use therein |
Feb. 21, 1995 |
| 5387708 |
Production of dialkyl carbonates using copper catalysts |
Feb. 7, 1995 |
| 5385878 |
Method for producing modified polyisocyanurate foams |
Jan. 31, 1995 |
| 5371057 |
Method for producing modified polyisocyanurate foams |
Dec. 6, 1994 |
| 5347060 |
Phase-transfer catalysis with onium-containing synthetic mesoporous crystalline material |
Sep. 13, 1994 |
| 5318936 |
Catalyst for sweetening a sour hydrocarbon fraction containing metal oxide solid solution and magnesium oxide |
Jun. 7, 1994 |
| 5312794 |
Catalyst system for olefin polymerization |
May. 17, 1994 |
| 5294582 |
Urea-superacid salts and their use as a curing catalyst of epoxy resins |
Mar. 15, 1994 |
| 5286372 |
Process for sweetening a sour hydrocarbon fraction using a solid base |
Feb. 15, 1994 |
| 5283043 |
Direct crystallization of organic-swelled layered silicates and preparation of layered silicates containing interlayer polymeric chalcogenides therefrom |
Feb. 1, 1994 |
| 5278120 |
Catalyst composition |
Jan. 11, 1994 |
| 5273646 |
Process for improving the activity of a mercaptan oxidation catalyst |
Dec. 28, 1993 |
| 5250486 |
Polyphenylene ether process and resin composition |
Oct. 5, 1993 |
| 5244856 |
Polytetraalkylammonium and polytrialkylamine-containing ligands bonded to inorganic supports and processes of using the same for removing and concentrating desired ions from solutions |
Sep. 14, 1993 |
| 5238889 |
Process for the separation of oligomeric materials from a catalyst mixture |
Aug. 24, 1993 |
| 5235010 |
Organic oxygen-containing polymerization cocatalysts |
Aug. 10, 1993 |
| 5232887 |
Catalyst for sweetening a sour hydrocarbon fraction |
Aug. 3, 1993 |
| 5225387 |
Catalysts for producing 1,3-diols and/or 3-hydroxyaldehydes, and processes for making and using same |
Jul. 6, 1993 |
| 5210318 |
Catalysts and processes useful in producing 1,3-diols and/or 3-hydroxyldehydes |
May. 11, 1993 |
| 5204306 |
Caustic free catalyst for use in a liquid/liquid process for sweetening a sour hydrocarbon fraction |
Apr. 20, 1993 |
| 5182246 |
Catalyst for hydrogenation, dehydrosilylation or hydrosilylation and use thereof |
Jan. 26, 1993 |
| 5177045 |
Crystalline titanate catalyst supports |
Jan. 5, 1993 |
| 5168087 |
Aqueous disperse system of photoinitiators and their use |
Dec. 1, 1992 |
| 5162279 |
Immobilized metal complexes |
Nov. 10, 1992 |
| 5120698 |
Zinc phosphorus oxide and zinc arsenic oxide compositions |
Jun. 9, 1992 |
| 5116796 |
Organic solvent soluble oxide supported hydrogenation catalyst precursors |
May. 26, 1992 |
| 5105006 |
Phosphonium salts |
Apr. 14, 1992 |
| 5104842 |
Catalytic composition comprising titanium and phosphorous, its preparation and its use for condensing an epoxide on a carboxylic acid anhydride |
Apr. 14, 1992 |
| 5100854 |
Phosphonium salts and processes for production of and uses for the same |
Mar. 31, 1992 |
| 5099054 |
Organoclay triphase catalysts |
Mar. 24, 1992 |
| 5093296 |
Caustic free liquid/liquid process for sweetening a sour hydrocarbon fraction |
Mar. 3, 1992 |
| 5089450 |
Catalyst for polymerization of organosiloxanes |
Feb. 18, 1992 |
| 5087359 |
Quaternized PEI silica solid supports for chromatography |
Feb. 11, 1992 |
| 5081091 |
Catalysts |
Jan. 14, 1992 |
| 5079206 |
Catalysts |
Jan. 7, 1992 |
| 5071812 |
Polymerization of cyclic olefins |
Dec. 10, 1991 |
| 5039642 |
Stable, finely-dispersed, aqueous single-component silicone catalysts, process for their preparation and their use |
Aug. 13, 1991 |
| 5030606 |
Nickel-catalyzed copolymerization of ethylene |
Jul. 9, 1991 |
| 5010116 |
Water blown foam |
Apr. 23, 1991 |
| 5004591 |
Catalytic process for removal of hydrogen sulfides from liquid sulfur |
Apr. 2, 1991 |
| 4994427 |
Supported aqueous phase organometallic catalyst useful for hydroformylation and other reactions, and a method for its preparation |
Feb. 19, 1991 |
| 4992403 |
Catalysts for hydrotreating hydrocarbons and methods of preparing the same |
Feb. 12, 1991 |
| 4981827 |
Catalysts |
Jan. 1, 1991 |
| 4977117 |
Process of presulfurizing and controlling the activity of catalyst for treating hydrocarbons |
Dec. 11, 1990 |
| 4960848 |
Process for the production of polyisocyanates containing isocyanurate groups and their use |
Oct. 2, 1990 |
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