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7402235 |
Viscosity improver compositions providing improved low temperature characteristics to lubricating oils
A mixture comprising A) a copolymer comprising from about 70 to about 79% by weight of units derived from ethylene, and having (a) M w measured by gel permeation chromatography employing...
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7342143 |
Polyalphaolefin having a low halide concentration and a method of manufacturing thereof
A method for the processing of a polyalphaolefin feedstock having a concentration of organic halide to thereby yield a polyalphaolefin end-product having a low concentration of organic halide. The...
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7259286 |
Attrition resistant bulk iron catalysts and processes for preparing and using same
An attrition resistant precipitated bulk iron catalyst is prepared from iron oxide precursor and a binder by spray drying. The catalysts are preferably used in carbon monoxide hydrogenation...
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7208543 |
Ethylene-propylene copolymers with an improved shape stability suitable for modifying lubricating oils and process for the preparation thereof
A process is described for the preparation of viscosity index improver (V.I.I.) additives which includes treatment under high shear conditions of a composition comprising (i) one or more EP(D)M...
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7163913 |
Viscosity index improvers for lubricating oil compositions
A polymer suitable for use as a viscosity index improver for lubricating oil compositions, which is at least one, at least partially hydrogenated linear or star-shaped random copolymer of isoprene...
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7129197 |
Synthesis of poly-alpha olefin and use thereof
One or more oligomers of an olefin are prepared in the presence of a single-site catalyst. Preferably, the olefin is an α-olefin, and the oligomers are a poly-alpha-olefin (PAO). The PAO so...
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7018962 |
Viscosity index improver concentrates
A viscosity index (VI) improver concentrate containing at least one VI improver, from 0 to about 5 mass % of lubricating oil flow improver (LOFI) and diluent oil, wherein the diluent oil has a kv...
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7015255 |
Medium oil for slurry-bed reaction process and process of producing dimethyl ether
(a) A medium oil wherein a main component is a hydrocarbon, and the number of paraffinic carbon atoms is 70% or more with respect to a total number of carbon atoms, (b) a medium oil wherein a main...
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6858765 |
Polyolefin wax for coating materials and printing ink composition
A polyolefin wax for a coating material which includes an ethylene (co)polymer having a number-average molecular weight within the range of from 400 to 5000 as measured by gel permeation...
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6835698 |
Ethylene-base copolymers, process for producing the same and lubricating oil compositions containing the same
There are disclosed an ethylenic copolymer comprising ethylene and an α-olefin in which diad chain distribution [EA] of ethylene [E] and α-olefin [A] as determined by the nuclear magnetic...
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6764985 |
Viscosity modifier for lubricating oil and lubricating oil composition
This invention aims to provide lubricating oil compositions excellent in low-temperature properties, oxidation stability, lubricity at high temperatures and fuel efficiency and also in handling...
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6753381 |
Polymer blends and their application as viscosity index improvers
The present invention relates to a polymer blend containing a high ethylene content ethylene-propylene copolymer and a lower ethylene content ethylene-propylene copolymer. The polymer blend of the...
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6730818 |
Ethylene alpha-olefin polymers, process and uses
A novel series of copolymers and terpolymers, useful as base oils for synthetic lubricants, are produced by polymerization of ethylene, an alpha-olefin, and optionally a third monomer comprising an...
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6713438 |
High performance engine oil
High performance engine oils and other liquid lubricants comprise a liquid lubricant basestock of low viscosity from 1.5 to 12 cSt (100C) with two dissolved polymer components of differing...
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6703356 |
Synthetic hydrocarbon fluids
The present invention provides a process for polymerizing an olefin to produce poly-olefins using a crystalline catalyst. The resulting poly-olefins have low viscosity and low volatility and may be...
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6699813 |
Lanthanide-based catalyst composition for the manufacture of polydienes
A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) an lanthanide compound, (b) an alkylating agent, (c) a nickel-containing compound, and...
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6608155 |
Metal halide solid acids and supported metal halides as catalysts for the preparation of hydrocarbon resins
Supported metal halides and metal halide solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer, C5 monomers, and C9 monomers to produce...
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6586541 |
Process for production of polyolefins
Polyolefins, especially branched polyethylenes, can be made by combining a catalyst that can oligomerize ethylene to one or more alpha-olefins and a polymerization catalyst which can copolymerize...
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6586646 |
Vinylidene-containing polymers and uses thereof
Various vinylidene-containing polymers are obtained in the presence of a single-site catalyst. For example, the polymers include ethylene/isobutene copolymer, ethylene/propylene/isobutene...
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6459005 |
Ethylene/α-olefin copolymer, method for producing the same, and use thereof
The present invention intends to provide an ethylene/α-olefin copolymer of specific structure, exhibiting excellent performance as a lubricant oil additive, capable of having various functional...
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6437205 |
Low molecular weight high-cis polybutadienes and their use in high molecular weight-low molecular weight high-cis polybutadiene blends
A process for polymerizing 1,3-butadiene into a low molecular weight high-cis polybutadiene is described using a catalyst system comprising: (a) a neodymium-containing compound, (b) an aluminoxane...
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6417416 |
Ethylene-alpha-olefin polymers, processes and uses
A novel series of copolymers and terpolymers, useful as base oils for synthetic lubricants, are produced by polymerization of ethylene, an alpha-olefin, and optionally a third monomer comprising an...
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6399550 |
Extreme pressure lubricant
An extreme pressure industrial gear lubricant having enhanced oxidative and thermal stability, lower pour point, and higher viscosity index relative to petroleum-based lubricants is comprised of a...
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6388148 |
Ethylene-alpha-olefin polymers, processes and uses
A novel series of copolymers and terpolymers, useful as base oils for synthetic lubricants, are produced by polymerization of ethylene, an alpha-olefin, and optionally a third monomer comprising an...
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6384290 |
Oil-extended copolymers for sponge
An oil-extended copolymer for sponge comprising an ethylene-α-olefin nonconjugated diene copolymer satisfying the following conditions (1) to (4), and an extender oil in an amount of 10 to 90...
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6313077 |
Use of polyalphaolefins (PAO) derived from dodecene or tetradecene to improve thermal stability in engine oil in an internal combustion engine
The present invention relates to compositions of base oils and automotive engine oils using synthetic poly alpha olefins derived from 1-dodecene or 1-tetradecene to improve engine oil performance...
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6278032 |
Ethylene polymers with α-olefins
Ethylene copolymers with octene and/or ethylene terpolymers with alpha-olefins from 3 to 12 carbon atoms, optionally in the presence of other comonomers containing more than one unsaturation,...
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6258885 |
Filling compound
A filling compound for electrical and optical equipment in the form of cables, connectors, plugs, etc. and to assemblies thus produced, is provided. Electrical and optical equipment in the form of...
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6239321 |
Upgrading light oligomers
A process for upgrading a feedstock comprising lower oligomers and higher oligomers of isobutylene by oligomerizing the lower oligomer fraction thereof to higher molecular weight components.
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6222081 |
Catalysts suitable for decreasing the cold filter plugging point of middle distillates
Ethylene copolymers with alpha-olefins utilizable as additives to increase the properties of middle distillates at low temperatures, obtainable by polymerization in the presence of catalysts...
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6218588 |
Aromatic modified aliphatic hydrocarbon resins giving an excellent balance between tack and shear properties
The invention relates to aromatic modified aliphatic hydrocarbon resins giving excellent balance between tack and shear properties even at low coating weights. These resins are characterized in...
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6169154 |
Branched ethylenic macromonomer and its polymer
There are herein disclosed a branched ethylenic macromonomer which can function as a comonomer to provide a copolymer having excellent molding and working properties and which can be hydrogenated...
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6133490 |
Dispersant for pigments for aromatic polymers
A dispersant for pigments for aromatic polymers, which is superior not only in the ability of dispersing pigments in aromatic polymers but also in attaining high transparency and stability of the...
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6110880 |
Polyolefin block copolymer viscosity modifier
A viscosity modifier comprising a low molecular weight block copolymer including A blocks and B blocks, wherein the A blocks comprise at least about 93 wt. % polyethylene and the B blocks comprise...
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6090755 |
Use of bismuth compounds in extreme pressure grease lubricant compositions for rolling bearing applications with extended service life
The use of bismuth-compounds in an extreme pressure grease lubricant composition for rolling bearing applications can extend the useful service life of rolling bearings. The bismuth can be used as...
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6080902 |
Method of using polyolefin waxes
The present invention relates to a method of using polyolefin waxes prepared by means of metallocene catalysts as additive components in printing inks and surface coatings.
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6071863 |
Biodegradable polyalphaolefin fluids and formulations containing the fluids
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6054544 |
Ultra-low molecular weight ethylene polymers
The subject invention pertains to a non-pourable homogeneous ultra-low molecular weight ethylene polymer composition and a process for the preparation thereof. Such polymer compositions have longer...
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6043401 |
Reactive, low molecular weight, viscous poly(1-olefins) and copoly(1-olefins) and their method of manufacture
Catalysts and processes are described to make low molecular weight, essentially terminally-unsaturated, viscous poly(1-olefin) or copoly(1-olefin) having a high terminal vinylidine content from a...
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6040278 |
Water-free release/lubrication agent for treating the walls of a die for original shaping or reshaping
A water-free composition for treating the walls of a die for original shaping or reshaping contains up to 30% of a polyolefin and/or paraffin wax and at least 70% of oil, where the oil is a...
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5955639 |
Ethylene/alpha-olefin copolymer
A copolymer of ethylene and an alpha-olefin having an ethylene content of from 30 to 90 mole %, a number average molecular weight of from 300 to 30,000 and a molecular weight distribution defined...
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5874391 |
Polymer thickened lubricating grease
The present invention relates to a polymer thickener for lubricant grease compositions, wherein the thickener comprises a mixture of (1) a high molecular weight (co- or homo-)polymer of propylene...
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5871553 |
Fragrance-carrier compositions for use in tart candles
The present invention is directed to pourable fragrance-carrier compositions, and methods of preparation thereof, for use in tart candles, wherein the fragrance-carrier composition is comprised of...
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5856610 |
Process for producing ethylene-α-olefin copolymers
A process for producing an ethylene-α-olefin copolymer which includes subjecting ethylene to an oligomerization reaction in the presence of an oligomerization catalyst to convert a part of the...
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5846918 |
Polymer thickened lubricants for high operating temperatures
A polymer thickened lubricating grease composition with improved resistance to high operating temperatures (constant and/or peak), containing 1) a lubricating base oil, 2) a polymeric thickener,...
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5847247 |
Terpene-based solvents
The specification discloses terpene-based solvent compositions which comprise diterpenes as a major component and a minor amount of monoterpenes. The mixtures exhibit solvent properties similar to...
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5807949 |
Polymers and additive compositions
Homo- or co-polymers derived from one or more alpha-olefins having a number average molecular weight of up to 15,000 and an isotacticity of 75% or greater, and their use as Cold Flow Improvers in...
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5773394 |
Conducting polymer-thickened grease compositions
An electrically conducting polymer thickened grease composition containing 1) a lubricating base oil, 2) a polymer thickener, 3) an electrically conducting component, 4) optional...
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5756430 |
Mist oil lubricant
Mist oil lubricants are disclosed based on polycarboxylic acid esters as the base oil which have added 1 to 5% of polyisobutylene Mn 400-2500 as stray mist suppressants.
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5750813 |
Process for the preparation of polyolefin waxes
A process for the preparation of a polyolefin wax by polymerization or copolymerization of olefins or diolefins in suspension and in the presence of a catalyst. The process utilizes a metallocene...
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