| Patent Number |
Title Of Patent |
Date Issued |
| 5460634 |
Fuel oil treatment |
October 24, 1995 |
| An additive comprising an oil-soluble stable free radical, such as a nitroxide, or a precursor therefor, is used in a fuel oil to reduce, on combustion of the fuel oil, one or more of particulate emissions, hydrocarbon emissions, carbon monoxide emissions, and oxides of nitrogen emis |
| 5460633 |
Fuel oil treatment |
October 24, 1995 |
| An additive comprising an oil-soluble polymer of a C2 to C6 mono-olefin such as polyisobutylene, which polymer has a molecular weight of less than about 500, is used in a fuel oil to reduce, on combustion of the fuel oil, one or more of particulate emissions, hydrocarbon emissions, carbo |
| 5458920 |
Gloss reduction agent for solvent based pigmented coating formulations |
October 17, 1995 |
| The invention relates to the use of polybasic acids as gloss reduction agents in the preparation of paint or coating compositions based on hydroxy or phenolic functional resins and also containing an amino crosslinking agent and a pigment. Cured coatings exhibiting good flexibility, |
| 5458450 |
Pressure-vacuum rated flexible connector for use in material handling systems |
October 17, 1995 |
| A flexible connector assembly comprising a flexible material which is substantially resistant to temperature and acid/solvent fumes, and a telescopic assembly comprising first and second upper end flanges, and first and second lower end flanges, wherein an inner sleeve is connected t |
| 5457835 |
Leather |
October 17, 1995 |
| Leather products that are well lubricated, impermeable and water-repellent are produced by impregnating tanned leather under alkaline conditions with an aqueous emulsion of an emlsifier carboxylic acids or anhydrides containing at least 16 carbon atoms, in particular polyisobutenyl succi |
| 5457240 |
Use of stripper reactor reflux as an initiator for preforming reaction of cobaltous salts to cob |
October 10, 1995 |
| A method for starting a preformer reactor disposed within a hydroformylation system which comprises an oxo reactor, a stripper reactor and a preformer reactor, wherein the bottoms from the stripper reactor comprise at least a water soluble cobaltous salt and wherein the overhead from |
| 5456730 |
Polymeric additives |
October 10, 1995 |
| There are disclosed middle distillate fuel oil compositions containing an additive being a copolymer of Mn 200-50,000 having a polymethylene backbone which may be O or N substituted and having nitrate, peroxide, nitrite or nitrosocarbonate side chains. |
| 5455307 |
Polymeric stabilizers for polyolefins |
October 3, 1995 |
| The present invention provides for polymeric stabilizers which are the acid-catalyzed reaction product of a phenolic compound or a ring substituted aromatic compound and an olefin polymer containing either terminal unsaturation and/or pendant unsaturation along the polymer chain. The |
| 5453519 |
Process for inhibiting oxidation and polymerization of furfural and its derivatives |
September 26, 1995 |
| Dialkylphenylenediamines are used to inhibit oxidation and polymerization of furfural or furfural derivatives. The preferred use of the inhibitor is in the solvent refining of lubricating oils using furfural to extract constituents from the lubricating oils. Prior to and/or during the |
| 5453465 |
Process for preparing thermoplastic compositions |
September 26, 1995 |
| A non-vulcanized thermoplastic composition comprising a polyamide and an elastomeric halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene is prepared by blending the polyamide and elastomeric copolymer in the presence of specified metal compounds |
| 5453129 |
Oil spill recovery method |
September 26, 1995 |
| A method and apparatus for oil cleanup or protection includes meltblowing equipment mounted on a vessel or vehicle for the generation and deposition of an oil absorbent web at the site of the spill. |
| 5451647 |
Living carbocationic polymerization process |
September 19, 1995 |
| An olefin polymerization process is provided wherein an olefin chargestock is contacted with an organic compound polymerization initiator, a Lewis acid coinitiator and a pyridine compound such as 2,6-di-tert-butylpyridine to produce homopolymers, copolymers or block copolymers having a n |
| 5451450 |
Elastic articles and a process for their production |
September 19, 1995 |
| Disclosed is an elastic film having improved properties. The elastic film can be blown, cast or cast embossed. The elastic film is processed by polymerizing olefins in the presence of a metallocene catalyst system. |
| 5451333 |
Haze resistant dispersant-detergent compositions |
September 19, 1995 |
| According to the present invention, oleaginous compositions having improved stability are provided, wherein high molecular weight ashless dispersants and metal detergents are pre-blended at a temperature of at least 100.degree. C. for a period of from 1 to 10 hours, cooled to at least |
| 5449850 |
Process for oligomerizing C.sub.3 and higher olefins using zirconium adducts as catalysts (CS-46 |
September 12, 1995 |
| C.sub.3 and higher olefins are oligomerized using a two component catalyst system comprising (a) a soluble adduct of zirconium tetrahalide, the halogen being Br or Cl, with an organic compound selected from the group of esters, ketones, ethers, amines, nitriles, anhydrides, acid chloride |
| 5446221 |
Oleaginous compositions containing novel ethylene alpha-olefin polymer viscosity index improver |
August 29, 1995 |
| The present invention is directed to a lubricating oil composition exhibiting improved viscosity index comprising lubricating oil and a viscosity improving effective amount of ethylene alpha-olefin polymer comprising monomer units derived from ethylene and at least one alpha-olefin r |
| 5444176 |
Process for recovering olefins from cat-cracked gas without accumulating undesirable oxides of n |
August 22, 1995 |
| A safe, effective, and economical method is provided for recovering olefins from cat-cracked gases without accumulating dangerous amounts of nitrogen oxides. A stream of cat-cracked gas first is scrubbed to remove acid gases, including nitrogen dioxide (NO.sub.2), and then is passed thro |
| 5444145 |
Ethylene/branched olefin copolymers |
August 22, 1995 |
| High molecular weight copolymers of ethylene and 0.5-10 mole percent branched .alpha.-olefins are disclosed. The polymers have M.sub.w of 30,000-1,000,000, MWD of 2-4, a density of 0.85-0.95 g/cm.sup.3, and a high composition distribution breadth index. Also disclosed are a method fo |
| 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 |
| 5443715 |
Method for upgrading steam cracker tars |
August 22, 1995 |
| A process for the production of gaseous olefins which involves introducing a hydrocarbon feedstock stream into a high temperature thermal cracking zone to produce a high temperature cracked product stream, quenching the cracked product stream to stop the cracking reactions, injecting at |
| 5442040 |
Extraction of selection hydrocarbons from a hydrocarbon stream using a carbon adsorbent |
August 15, 1995 |
| The present invention is directed to adsorbing polymeric hydrocarbons (ie. polymers of iso-butylene, polymers of the isomers of iso-butylene (poly-butenes) and co-polymers of iso-butylene and other olefins (butyl rubber) from hydrocarbon or raffinate streams using activated carbon as |
| 5441920 |
Silicon-bridged transition metal compounds |
August 15, 1995 |
| Silicon-bridged transition metal compounds and their use as alpha-olefin polymerization catalysts are disclosed. The polymerization catalyst comprises a chiral silicon-bridged metallocene of the following structure: ##STR1## where M is a transition metal, X' and X" are the same or di |
| 5441545 |
Middle distillate compositions with improved low temperature properties |
August 15, 1995 |
| Copolymers of straight chain alpha olefins and maleic anhydride esterified with an alcohol wherein the alpha olefin is of the formula:and the alcohol is of the formula:in which at least one of R and R.sup.1 is greater than 10 and the sum of R and R.sup.1 is from 18 to 38 and R.sup.1 is linea |
| 5439607 |
Multifunctional viscosity index improver-dispersant antioxidant |
August 8, 1995 |
| Oleaginous compositions, particularly lubricating oil compositions, exhibiting improved antioxidant properties containing a viscosity index improving amount of a viscosity index improver-dispersant comprised of the reaction products of: (a) an oil soluble ethylene copolymer comprising |
| 5439604 |
Oil soluble additives useful in oleaginous compositions |
August 8, 1995 |
| This invention is to compositions containing metal salts, preferably copper or zinc salts, of polyalkenyl substituted monounsaturated mono- or dicarboxylic acids which may be used as a compatibilizing material for mixtures of high molecular weight dispersants, high total base number |
| 5436304 |
Process for polymerizing monomers in fluidized beds |
July 25, 1995 |
| The invention is directed toward polymerizing or copolymerizing alpha-olefins either alone or in combination with one or more other alpha-olefins in a gas phase reactor having a fluidized bed and a fluidizing medium such that the fluidizing medium entering the reactor comprises a gas |
| 5435926 |
Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives |
July 25, 1995 |
| The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably |
| 5434318 |
Reactivation or regeneration of cobalt preformer catalyst for oxo process |
July 18, 1995 |
| Noble metal or other preformer catalysts used to convert cobalt salts to hydrido cobalt carbonyl for use in the oxonation of olefins are reactivated or regenerated by treatment with a mixture of an aqueous organic acid solution and an alcohol at a temperature of about 120.degree. C. |
| 5434221 |
Low molecular weight isoolefin polymer |
July 18, 1995 |
| A process is provided for producing a low molecular weight isoolefin polymer by contacting at conversion conditions a higher molecular weight saturated isoolefin polymer, for example, polyisobutylene or a copolymer of a C.sub.4 to C.sub.7 isoolefin and a para-alkylstyrene, in the melt |
| 5433924 |
Method and apparatus for feeding a catalyst |
July 18, 1995 |
| A catalyst feed system is described for intermittent delivery of supported and/or prepolymerized supported catalyst to a polymerization reactor. The system incorporates valves with cylindrical sealing surfaces as well as a venting stage incorporating a filter arranged such that it is |
| 5433874 |
Ethylene .alpha.-olefin copolymer substituted mannich base lubricant dispersant additives |
July 18, 1995 |
| The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of an alkyl substituted hydroxy aromatic compound with formaldehyde and an amine, wherein the alkyl-moiety of the aromatic compounds is derived from a mixture comprising at leas |
| 5433757 |
Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives |
July 18, 1995 |
| The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably |
| 5432242 |
HP catalyst killer |
July 11, 1995 |
| A process for preparing olefinic polymers by metallocene catalyzed olefin polymerisation in which at least one volatile catalyst kill agent is introduced. A non-volatile catalyst kill agent may also be used in conjunction with the volatile catalyst kill agent. Water may be used as th |
| 5430213 |
Process for producing 1,4-dienes |
July 4, 1995 |
| Pure 1,4-dienes are produced at high rates of reaction by reacting a conjugated diene and an alpha monoolefin at a temperature below 70.degree. C. in the presence of a catalyst consisting essentially of a 1,3-bis(diphenylphosphino)propane ligand of Co(II)(acetylacetonate).sub.2 or Co |
| 5430118 |
Para-alkylstyrene/isoolefin copolymers having substantially homogeneous compositional distributi |
July 4, 1995 |
| A copolymer having a substantially homogeneous composition distribution, said copolymer comprising the direct reaction product of an isoolefin and para-alkylstrene. |
| 5430108 |
Polyol ester PVC plasticizers |
July 4, 1995 |
| Plasticized PVC compositions are disclosed which are heat resistant and which exhibit low smoke generation where the plasticizer is a pentaerythritol ester of mixed C.sub.5, C.sub.7 and C.sub.9 alkanoic acids. |
| 5430105 |
Low sediment process for forming borated dispersant |
July 4, 1995 |
| A low sediment process for forming a borated, oil soluble, polymer-substituted, nitrogen- or ester-containing lubricating oil additive. A polymer-substituted, nitrogen- or ester-containing additive in the presence of a solvent therefor, is contacted under boronating reaction conditio |
| 5428099 |
Method to control carbon black distribution in elastomer blends |
June 27, 1995 |
| Elastomers modified by amine groups, particularly diethanol amine, are used for controlling carbon black distribution in elastomer blends. |
| 5427999 |
Amine adducts as corrosion inhibitors |
June 27, 1995 |
| Amines which are compounds of the formula I: ##STR1## where R is a C.sub.6-20 hydrocarbon;X is --NR.sub.1 -- or --O--;each R.sub.1 is independently H or --[(CH.sub.2).sub.1-4 ]COOH or a C.sub.6-20 hydrocarbon;n is 1, 2 or 3;and which contains at least one (CH.sub.2).sub.1-4 COOH group; o |
| 5427991 |
Polyionic transition metal catalyst composition |
June 27, 1995 |
| Ionically activated metallocene catalyst compositions which are useful in the polymerization of olefins comprise transition metal cationic components associated with and stabilized by a polyanionic moleties constituted of non-coordinating anionic groups chemically bonded to core comp |
| 5427702 |
Mixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil com |
June 27, 1995 |
| The present invention relates to novel multifunctional viscosity modifiers comprising a mixture of derivatized ethylene-alpha olefin copolymers, A and B. Said A copolymer comprising from about 30 to about 60 weight percent monomer units derived from ethylene and said B copolymer comp |
| 5426167 |
Para-alkylstyrene/isoolefin copolymers having substantially homogeneous compositional distributi |
June 20, 1995 |
| A copolymer having a substantially homogeneous composition distribution, said copolymer comprising the direct reaction product of an isoolefin and para-alkylstyrene. |
| 5425789 |
Chemical compositions and their use as fuel additives |
June 20, 1995 |
| A compound of the general formula ##STR1## where X is CONR.sub.2 or CO.sub.2.sup.- + H.sub.2 NR.sub.2Y and Z are the same or different and selected from the group consisting of CONR.sub.2,CO.sub.2 R, OCOR, --OR, --R, --NCOR andone of Y or Z may be absent andR is selected from the group c |
| 5424367 |
Multiple reaction process in melt processing equipment |
June 13, 1995 |
| Multiple sequential chemical reactions on a polymeric feedstock are carried out in an extruder with multiple reaction zones. Each reaction zone has means for introduction of reagents, for mixing of reagents with polymer and for removal of by/co-products or unreacted reagents. |
| 5423890 |
Fuel oil additive and compositions |
June 13, 1995 |
| Compositions comprising an ethylene-.alpha.-olefin copolymer, an ethylene-unsaturated ester copolymer, and a comb polymer improve the low temperature properties of fuel oils, especially high wax content oils. |
| 5422325 |
Supported polymerization catalysts, their production and use |
June 6, 1995 |
| This invention is generally directed toward a supposed catalyst system useful for polymerizing olefins. The method for supposing the catalyst of the invention provides for a supposed metallocene catalyst able to produce polymers having broader molecular weight distribution and a higher |
| 5420239 |
Method for inhibiting popcorn polymer formation by heat |
May 30, 1995 |
| Inhibition of popcorn polymer growth by treatment with heat. Heat can be applied to extant popcorn polymer, particularly in the absence of organic material from which the popcorn polymer is formed. A chemical inhibitor of popcorn polymerization can be used in conjunction with the heat tr |
| 5420217 |
Process for producing amorphous poly-.alpha.-olefins with a monocyclopentadienyl transition meta |
May 30, 1995 |
| The invention is a catalytic process using a Group IV B transition metal component and an alumoxane component to polymerize propylene to produce amorphous polypropylene. |
| 5418303 |
Carbocationic catalysts and process for using said catalysts |
May 23, 1995 |
| A carbocationic catalyst composition comprising an initiator of water, a tertiary alkyl or aralkyl halide, ester, ether, carboxylic acid, acid halide or a polymeric halide and a co-initiator of an alkoxy metal halide, is used to produce narrow molecular weight distribution olefin polymer |
| 5417930 |
Polymerization reactor |
May 23, 1995 |
| A novel chemical reactor: one particularly useful for the production of polymers, especially elastomers such as butyl rubber. The reactor contains (1) a two-tube pass system, constituted of an inner or center tube bundle through which a mixture or slurry of polymerizable monomers and cat |
