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| Number | Title | Issue Date |
| 5756611 | -olefin polymerization catalysts A catalyst useful in the polymerization of -olefins comprises the reaction product of an alcohol having the general formula ##STR1## with an organometallic compound having the general formula LM(X)v-1 wherein Q is --COR12, --C... | 05/26/1998 |
| 5747404 | Polysiloxane supported metallocene catalysts Disclosed is a catalyst having the formula ##STR1## where each R is independently selected from aliphatic from C1 to C6 and aromatic from C6 to C10, each R5 is independently selected from H, R, a... | 05/05/1998 |
| 5744417 | Supported catalyst Disclosed is a supported catalyst which is the reaction product of (a) a silylamine polymer having the general formula ##STR1## where each R is independently selected from alkyl from C1 to C6 or aryl from C6 to C10 | 04/28/1998 |
| 5637660 | Polymerization of -olefins with transition metal catalysts based on bidentate ligands containing pyridine or quinoline moiety Disclosed is a novel bidentate pyridine transition metal catalyst having the general formula ##STR1## where Y is O, S, NR, ##STR2## each R is independently selected from hydrogen or C1 to C6 alkyl, each R' is independe... | 06/10/1997 |
| 5637659 | Method of polymerizing olefins using borabenzene catalysts Disclosed is a catalyst having the general formula ##STR1## where Q is a ligand containing the ring ##STR2## R is hydrogen, N(R')2, OR', or R', each R' is independently selected from alkyl from C1 to C10, aryl fr... | 06/10/1997 |
| 5614574 | Wettable polyolefin fiber compositions and method Compositions of ethylene alkyl acrylate grafted onto a polyolefin such as isotactic polypropylene are provided. The composition is highly wettable by adding both a polar group material and a hydrophilic modifier to the polypropylene. The hydrophilic modif... | 03/25/1997 |
| 5578557 | Food grade compressor oil A food grade compressor oil for use in a high pressure compressor includes a base oil, an N-acyl derivative of the amino acid sarcosine, an imidazoline, and an amine-phosphate. Each of the three additives comprises no more than 0.5% by weight of the oil c... | 11/26/1996 |
| 5576366 | Dyeable polyolefin compositions and method Compositions of ethylene alkyl acrylate grafted onto polypropylene are dyeable with disperse or cationic dyes. A small amount of polyester may be include, along with a hydrophilic modifier comprising a monoglyceride and a salt of a liner alkyl. The hydrop... | 11/19/1996 |
| 5550192 | Dyeable polyolefin compositions and dyeing polyolefin compositions Disperse dyeable compositions of ethylene alkyl acrylate grafted onto polypropylene are provided. A process for disperse dyeing polypropylene fibers is provided. This process comprises (a) extruding the polypropylene with about 2 to 10% by weight of a the... | 08/27/1996 |
| 5464687 | Wettable polyolefin fiber compositions and method Compositions of ethylene alkyl acrylate grafted onto a polyolefin such as isotactic polypropylene are provided. The composition is highly wettable by adding both a polar group material and a hydrophilic modifier to the polypropylene. The process comprises... | 11/07/1995 |
| 5300718 | Olefin conversion process Propylene is produced from the disproportionation of impure butene-2 containing oxygenates and butene-1 by treatment with alumina and isomerization of the butene-1 prior to disproportionation with ethylene.... | 04/05/1994 |
| 5275718 | Lubricant base oil processing A hydrofinishing process for improving the color, thermal and oxidative stability of a base stock for lubricating oil wherein the lubricating oil stock is contacted with hydrogen in the presence of a nickel-molybdenum catalyst, at a pressure in the range ... | 01/04/1994 |
| 5207894 | Removal of aromatic color bodies from aromatic hydrocarbon streams This invention provides a process to remove aromatic color bodies, particularly oxygen or sulfur containing aromatics from a C8-11 aromatic hydrocarbon stream having a boiling range between about 160°-460° F. The process involves contacting t... | 05/04/1993 |
| 5154840 | Environmentally friendly grease compositions The present invention provides an environmentally friendly grease composition. The base components of this lubricating composition include a white mineral oil in the amount of about 65 to about 85% by weight based on total weight of the composition, an ex... | 10/13/1992 |
| 5141630 | Separation process employing two stripping gases A process for separating or stripping lighter components from a heavier hydrocarbon feedstock contaminated with or otherwise including light components. The separation is accomplished by introducing the feedstock into a column and allowing the feedstock t... | 08/25/1992 |
| 5120894 | Olefin conversion process Propylene is produced from the disproportionation of impure butene-2 containing oxygen-ates and butene-1 by treatment with alumina and isomerization of the butene-1 prior to disproportionation with ethylene.... | 06/09/1992 |
| 5098556 | Treatment of off-specification white mineral oil made by two stage hydrogenation The invention relates to a method for removing RCS from off-spec white mineral oil prepared by catalytic hydrogenation by filtering the off-spec white mineral oil through a bleaching clay, such as a smectite clay, particularly an acid treated montmorillon... | 03/24/1992 |
| 5085839 | Apparatus for the prevention of acid gas excursions An improved acid gas recovery system is provided which has particular application in reducing the incidence of sulfide and other acid gas excursions. The present invention addresses the disadvantages of prior absorption techniques by closely monitoring an... | 02/04/1992 |
| 5081325 | Purification of unsaturated hydrocarbon streams containing styrenics This invention relates to a method for removing polar bodies and other contaminants, including color bodies, from unsaturated hydrocarbon streams having a boiling range between 280°-310° F. by contacting the unsaturated hydrocarbon stream with a neutral... | 01/14/1992 |
| 5026934 | Method for converting light hydrocarbons to olefins, gasoline and methanol The invention provides a method of converting light hydrocarbons to olefins, gasoline and methanol. In the first stage, a gas containing one or more light hydrocarbons is synthesized to higher hydrocarbons including raw gasoline. However, at commercially ... | 06/25/1991 |
