| Patent Number |
Title Of Patent |
Date Issued |
| 5562851 |
Sulfur-containing carbonate reaction products as lubricating oil antiwear additives |
October 8, 1996 |
| This invention provides sulfur-containing carbonate reaction product additives which are useful as phosphorus-free antiwear additives in lubricating oils, particularly automatic transmission fluids. |
| 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 |
| 5558805 |
Lubricating compositions |
September 24, 1996 |
| Crankcase lubricant compositions for use in automobile or truck engines comprise a major amount of a lubricating oil, added copper present in oil-soluble form and an oil-soluble diamine sulphide. The specified additives provide a highly effective antioxidant system, which may be used |
| 5558802 |
Multigrade crankcase lubricants with low temperature pumpability and low volatility |
September 24, 1996 |
| The detergent inhibitor package has been found to influence the viscometric properties of SAE 5W lubricants that have less than 5 mass % of non-conventional basestock, use a basestock that has an average base stock neutral number not less than 105, a calibrated Noack volatility of not |
| 5554704 |
Controlled particle size polyolefins from silica supported prepolymerized matallocene catalyst |
September 10, 1996 |
| The invention relates to a novel process for producing a supported metallocene catalyst system useful for the polymerization and/or copolymerization of olefins, alpha-olefins, and/or diolefins which results in a catalyst product which during polymerization, produces minimal to no rea |
| 5554310 |
Trisubstituted unsaturated polymers |
September 10, 1996 |
| The invention pertains to olefinically unsaturated polymers wherein at least a portion of the olefinic unsaturation has three hydrocarbyl substituents attached to the two carbons of an olefinic unsaturation (i.e., trisubstituted vinyl). The invention is an H.sub.2 C=CHR .alpha.-olefi |
| 5554200 |
Oil additives and compositions |
September 10, 1996 |
| Compositions comprising two or more ethylene-unsaturated ester copolymers differing in their ester proportions improve the low temperature properties of fuel oils. |
| 5552489 |
Tackifiers and a process to obtain tackifiers |
September 3, 1996 |
| Tackifiers having Mn's of 5,000 or less and Tg's above 0.degree. C. are produced by combining a single site catalyst with an alpha-olefin and a cyclic monomer under conditions designed to produce low molecular weight. |
| 5552363 |
Halogen resistant hydrogenation process and catalyst |
September 3, 1996 |
| A process has been developed for decolorizing (and/or hydrogenating, and/or dehalogenating) a halogen containing unsaturated feedstock and/or polymeric resins. The process has the advantage of being substantially less affected by prolonged exposure to halogen contaminants and impurities |
| 5552358 |
Polymerization catalyst systems, their production and use |
September 3, 1996 |
| This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for preparing the catalyst system of the invention provides for an optionally supported, metallocene catalyst component which when utilized in a polymerization process |
| 5552096 |
Multiple reaction process in melt processing equipment |
September 3, 1996 |
| 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. |
| 5548029 |
Graft copolymers of para-alkylstyrene/isoolefin copolymers |
August 20, 1996 |
| Graft copolymers which are isoolefin/para-alkylstyrene copolymer represented by the formula ##STR1## in which R and R' can be hydrogen, alkyl, and the primary and secondary alkyl halides, "a" ranges from about 14 to about 70,000, "b" ranges from 0 to about 70,000, "c" ranges from |
| 5548023 |
Graft copolymers of para-alkylstyrene/isoolefin copolymers as blend compatibilizers |
August 20, 1996 |
| A method of compatibilizing a blend of at least a hydrocarbon polymer with at least one other polymer which is incompatible with the hydrocarbon polymer, said method comprising adding to the polymer blend a compatibilizer which is an isoolefin/para-alkylstyrene copolymer represented |
| 5548014 |
Blends of ethylene copolymers for hot melt adhesives |
August 20, 1996 |
| Disclosed are hot melt adhesives comprising tackifier and a high M.sub.w, narrow MWD, narrow CD ethylene/alpha-olefin copolymer(s) and a low M.sub.w, narrow MWD, narrow MWD ethylene/alpha-olefin copolymer prepared with either supported or unsupported cyclopentadienyl derivatives of Group |
| 5547675 |
Modified monocyclopentadienyl transition metal/alumoxane catalyst system for polymerization of o |
August 20, 1996 |
| This invention comprises a catalyst system and a process using such catalyst system for the production of high molecular weight polyolefins, particularly polyethylene and higher poly-.alpha.-olefin, and copolymers of ethylene and/or .alpha.-olefins with other unsaturated monomers, in |
| 5543469 |
Viscosity modifier polymers |
August 6, 1996 |
| The present invention relates to hydrogenated block copolymers of butadiene and at least one other diene, preferably isoprene. The copolymer is hydrogenated and comprises at least 10% by weight of at least one crystallizable segment and at least one low crystallinity segment. |
| 5543388 |
Intensified corrosion inhibitor and method of use |
August 6, 1996 |
| Elemental iodine is used to improve the performance of conventional corrosional inhibitors in oil field acidizing operations. The iodine, because of its solubility, may be used in a formulation which includes a corrosion inhibitor and surfactants dissolved in a suitable organic solve |
| 5541350 |
Amido silyldiyl bridged catalyst components, methods of making and using |
July 30, 1996 |
| Disclosed is a mono- or di-amido silyldiyl bridged composition of matter useful as a catalyst component for the homo or copolymerization of olefins. |
| 5541285 |
Method to process narrow molecular weight distribution polyolefins |
July 30, 1996 |
| This invention relates to a method to process narrow molecular weight distribution polyolefins, particularly thermoplastics, polyethylenes, polypropylenes, and polyacrylates, whether they are homopolymers or copolymers. The process may be used in any extruder and is typically impleme |
| 5539056 |
Thermoplastic elastomers |
July 23, 1996 |
| This invention relates to polypropylene blends, particularly blends of high molecular weight amorphous polypropylene with low molecular weight isotactic polypropylene. These blends exhibit unusual elastomeric properties. |
| 5538790 |
Cling film |
July 23, 1996 |
| A method to produce a stretch cling film possessing cling without added tackifier or acrylate unit is disclosed. Preferred copolymers to make this film have a solubility distribution breadth index of less than about 35.degree. C. and are ethylene/C.sub.3-20 alpha olefin copolymers with |
| 5538790 |
Cling film |
July 23, 1996 |
| A method to produce a stretch cling film possessing cling without added tackifier or acrylate unit is disclosed. Preferred copolymers to make this film have a solubility distribution breadth index of less than about 35.degree. C. and are ethylene/C.sub.3-20 alpha olefin copolymers with |
| 5536794 |
Thermoset coating compositions having improved hardness |
July 16, 1996 |
| The present invention provides for amino-crosslinkable coating formulations based on a mixture of a di or polyhydroxy functional polymeric component selected from the group consisting of diesters, polyesters, alkyd polymers, acrylic polymers and polycarbonate polymers, a methylol (al |
| 5534652 |
Preparation of plasticizer esters from phthalic anhydride residue |
July 9, 1996 |
| A process for the formation of esters from at least one phthalic anhydride residue stream produced from the vapor phase oxidation of o-xylene, naphthalene and/or the like which comprises: (a) adding a phthalic anhydride residue stream and a mono-alcohol to a reaction vessel to form a |
| 5534170 |
Mixed phosphorus- and sulfur-containing reaction products useful in power transmitting compositi |
July 9, 1996 |
| A phosphorous- and sulfur-containing additive and its use to impart anti-wear properties to oleaginous compositions such as fuels and lubricating oils, particularly power transmission compositions, such as automatic transmission fluids, is disclosed. The additive comprises a mixture |
| 5534168 |
Preparation of overbased magnesium sulphonates |
July 9, 1996 |
| The use of magnesium oxide of specified, low, reactivity in a process for the production of overbased magnesium sulphonates, together with the introduction of water and an alcohol, into the reaction mixture during carbonation, makes it possible to prepare high base number products which |
| 5532405 |
Preparation of plasticizer or polyol esters by the staged addition of the lower boiling point re |
July 2, 1996 |
| A process for the esterification of acids or anhydrides with alcohols or a polyhydroxy compound wherein the lower boiling point reactant is added to the reaction vessel in stages such that it is present in an amount of at least about 5% of the stoichiometric requirements of the total low |
| 5532312 |
Tire sidewall composition |
July 2, 1996 |
| A tire sidewall composition having improved properties is provided. The composition comprises a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene, and an unsaturated rubber, such as natural rubber. Tires comprising the sidewalls are also provided. |
| 5530065 |
Heat sealable films and articles made therefrom |
June 25, 1996 |
| Heat sealed articles and heat sealable films comprising a polymer blend of a first polymer having a narrow molecular weight and composition distribution and a second polymer having a broad molecular weight distribution and composition distribution. The articles and films have signifi |
| 5530054 |
Elastomeric ethylene copolymers for hot melt adhesives |
June 25, 1996 |
| Disclosed are hot melt adhesives comprising ethylene/alpha-olefin copolymers prepared with either supported or unsupported metallocene-alumoxane catalysts for applications in hot melt adhesives used in automotive product assembly, packaging and food packaging. These ethylene copolyme |
| 5529965 |
Polymerization catalyst systems, their production and use |
June 25, 1996 |
| This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for supporting the catalyst of the invention provides for a supported mixed metallocene/non-metallocene catalyst useful in a process for polymerizing olefins. |
| 5527478 |
Phosphorus-and mono- or di-sulfide-containing additives for lubrication oils |
June 18, 1996 |
| An oil-soluble reaction product of at least one nitrogen-containing compound, at least one phosphorus-containing compound, and at least one mono- or di-sulfide-containing alkanol is provided, which improves friction and/or wear performance of a lubrication oil. |
| 5525128 |
Fuel oil additives and compositions |
June 11, 1996 |
| Wax crystal modifiers for fuel oils are derived from ethylene-alpha olefin polymers with terminal unsaturation, preferably obtained by polymerization in the presence of a metallocene catalyst, optionally together with other cold flow improvers. |
| 5523359 |
Functionalized polymer and methods to obtain functionalized polymer |
June 4, 1996 |
| This invention relates to functionalized polymers and a method to obtain them comprising combing a living polymer or a polymer having a terminal halide group with an silyl enol ether. |
| 5520831 |
Increasing the friction durability of power transmission fluids through the use of oil soluble c |
May 28, 1996 |
| A method of controlling the friction coefficients and improving the friction durability of an oleaginous compositions, such as an ATF, comprising adding to the composition a combination of competing additives comprising (a) at least one friction reducing chemical additive having a po |
| 5518973 |
Titanium trichloride catalyst system for polymerizing olefins |
May 21, 1996 |
| A TiCl.sub.3 catalyst system is disclosed employing the electron donor, dicyclopentyldimethoxysilane ("DCPMS"). Additionally disclosed is a process for polymerizing olefins in the presence of a catalyst system employing a titanium trichloride catalyst, an alkylaluminum cocatalyst, an |
| 5516861 |
Polymerization catalyst systems, their production and use |
May 14, 1996 |
| This invention is generally directed toward a catalyst system useful for polymerizing olefins. The catalyst system of this invention comprises a supported bulky ligand transition metal compound and a separately supported cocatalyst or activator for the compound. |
| 5516848 |
Process to produce thermoplastic elastomers |
May 14, 1996 |
| This invention relates to polypropylene blends, particularly blends of high molecular weight amorphous polypropylene with lower molecular weight isotactic polypropylene. These blends exhibit unusual elastomeric properties. |
| 5516737 |
Polymerization catalyst systems, their production and use |
May 14, 1996 |
| This invention is generally directed toward a catalyst system useful for polymerizing olefins. The catalyst system of this invention comprises a supported bulky ligand transition metal compound and a separately supported cocatalyst or activator for the compound. |
| 5516444 |
Synergistic combinations for use in functional fluid compositions |
May 14, 1996 |
| The present invention provides functional fluid compositions containing a major portion of oil of lubricating viscosity and a novel and synergistic combination of an acylated nitrogen-containing compound having an oil soluble olefinic substituent averaging in carbon number from 8 to 20 a |
| 5516443 |
Compounds and fuel compositions |
May 14, 1996 |
| A novel compound comprises a chemical compound comprising or including a cyclic ring system such as an aromatic ring system, the compound carrying at least two substituents of the general formula (I) below on the ring systemwhere A is an aliphatic hydrocarbyl group that is optionally int |
| 5514761 |
Method for preparation of unsaturated alpha-olefin copolymers |
May 7, 1996 |
| Disclosed are unsaturated .alpha.-olefin/.alpha., .omega.-diene copolymers, and a method of preparation thereof. The copolymers are generally crystalline, free of gel and cross-links, and contain unsaturated side chains and long chain branching. The copolymers contain up to 5 mole pe |
| 5514291 |
Hydroxy aromatic compound Mannich base derivatives of amino-substituted polymers for oleaginous |
May 7, 1996 |
| The novel polymers of the present invention are prepared by reacting a hydroxy aromatic compound containing at least one --OH group in the ring, an aldehyde and amino-substituted polymer (e.g., an ethylene alpha-olefin interpolymer substituted by primary amino or secondary amino groups) |
| 5512638 |
Curing systems for compositions containing halogenated copolymers of isobutylene and para-methyl |
April 30, 1996 |
| The present invention provides for sulfur curable compositions containing a halogenated copolymer of a C.sub.4 to C.sub.7 isomonoolefin, e.g., isobutylene and a para-alkylstyrene, e.g., para-methylstyrene, and further containing a polyunsaturated fatty acid glyceride having an iodine val |
| 5509944 |
Stabilization of gasoline and gasoline mixtures |
April 23, 1996 |
| Gasoline and gasoline mixtures containing unsaturated hydrocarbons are stabilized by the addition thereto of an effective amount of (a) a primary antioxidant of a phenylenediamine, a hindered monophenol, or mixtures thereof, and (b) dimethyl sulfoxide. |
| 5508443 |
Liquid phthalic anhydride recovery process |
April 16, 1996 |
| A process for separating phthalic anhydride from a vapor phase oxidation product by mixing and cooling the vapor phase oxidation product with recycled by-products which have freezing points lower than the freezing point of pure phthalic anhydride, thereby condensing and recovering a |
| 5506316 |
Carbocationic catalysts and process for using said catalysts |
April 9, 1996 |
| A living carbocationic catalyst composition comprising an initiator of a tertiary alkyl halide, a tertiary aralkyl halide or polymeric halide a co-initiator of a methylaluminum or methylboron compound, and a solvent medium with a dielectric constant between 2.5 and 7 is used to produce |
| 5506312 |
Process for converting polyketones to polyesters |
April 9, 1996 |
| A polyketone is contacted with an organic peroxyacid in a reactive, oxidization, slurry process to produce a polyester polymer. |
| 5505878 |
Method of demulsifying water-in-oil emulsions |
April 9, 1996 |
| Water-in-oil emulsions are broken by the use of adducts prepared by reacting high molecular weight polyalkylene glycol with ethylene oxide, or diglycidyl ether, or both ethylene oxide and diglycidyl ether. The adduct demulsifiers may be used alone or as a blend with other demulsifiers. |
| 5504169 |
Process for producing amorphous poly-.alpha.-olefins with a monocyclopentadienyl transition meta |
April 2, 1996 |
| The invention is a catalytic process using a Group IV B transition metal component and a cocatalyst or activator component to polymerize .alpha.-olefins to produce amorphous poly-.alpha.-olefins having high molecular weight. |
