Class 585/18 - Acyclic

Subclass of Class 585 - Chemistry of hydrocarbon compounds
Definition: Subject matter in which the polymer has no ring in its structure.
No. of patents: 140
Last issue date: 05/01/2012

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Number	Title	Issue Date
8168838	Hydrocarbon compositions useful as lubricants A process for the preparation of a synthetic predominantly single carbon number hydrocarbon fluid comprises the steps of: contacting an alpha olefin having a carbon number of 4 to 30 with a single site catalyst under conditions effective to produce reactive hydrocar...	05/01/2012
8138383	Membrane active heteropolymers The present invention is directed to a class of membrane active polymers useful for cellular delivery of compounds. Conjugation of the described membrane active polymers to targeting, anti-opsonization, and anti-aggregation agents provides polymers suitable for in v...	03/20/2012
8101809	Base oil composition comprising oligomerized olefins Provided is a base oil, comprising one or more oligomerized olefins, wherein the base oil has: (d) a kinematic viscosity at 100° C. grater than 2.9 mm2/s; (e) a viscosity index from 25 to 90; and (f) a cloud point less than −55° C. Provided is a base ...	01/24/2012
8067652	Processes for controlling the viscosity of polyalphaolefins The invention relates to a process for forming a polyalphaolefin, the process comprising the step of polymerizing at least one C8-C12 monomer, preferably a decene such as 1-decene, in the presence of an aluminoxane, an activator and a metalloce...	11/29/2011
7943807	Controlling branch level and viscosity of polyalphaolefins with propene addition The invention relates to a polyalphaolefin formed from a decene and propene and having a branch level greater than 19% and to a process for forming such polyalphaolefins. The invention also relates to a process for forming a polyalphaolefin from at least two monomer...	05/17/2011
7456329	Polyolefins from non-conventional feeds Polyolefins made in accordance with the present invention are produced by polymerizing an unsaturated olefin or combination of unsaturated olefins to produce an unsaturated polyolefin, isomerizing the unsaturated polyolefin in the presence of an acid catalyst under ...	11/25/2008
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) Mw measured by gel permeation chromatography employing polystyrene standard ranging from about 50,000 up to less than...	07/22/2008
7273957	Process for the production of gasoline stocks A process for the production of gasoline stocks wherein lower molecular weight olefins are first oligomerized and the oligomers then hydrogenated. In the first instance the oligomerization is carried out in a single pass fixed bed boiling point reactor. The oligomer...	09/25/2007
7241375	Heavy hydrocarbon composition with utility as a heavy lubricant base stock A heavy hydrocarbon composition with utility as a heavy hydrocarbon base stock comprising at least 95 wt % paraffin molecules, of which at least 90 wt % are isoparaffin, containing hydrocarbon molecules having consecutive numbers of carbon atoms, is a liquid at 100�...	07/10/2007
7145049	Oligomerization process Alkenes, such as normal butenes in a mixed C4 stream are oligomerized, preferably to dimers, which are dimerized in a distillation column reactor over ZSM-57 zeolite catalyst at high conversions and high selectivity to octenes. Prior to oligomerization th...	12/05/2006
7060865	Recovery of C4 olefins from a product stream comprising C4 olefins, dimethyl ether and C5+ hydrocarbons Disclosed is a process for removing DME from a stream containing C4 olefins. The process includes providing a first stream comprising C4 olefins, C5+ hydrocarbons, DME, and methanol. The first stream is separated into a second stream comprising the C4 olefins and th...	06/13/2006
7037999	Mid-range vinylidene content polyisobutylene polymer product and process for producing the same A relatively low molecular weight, mid-range vinylidene content PIB polymer product and a process for making the same. At least about 90% of the PIB molecules present in the product comprise alpha or beta position isomers. The vinylidene (alpha) isomer content of th...	05/02/2006
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 component is a polybutene, (c) a medium oil wherein a main component ...	03/21/2006
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 properties at low temperatures, and a viscosity modifier for lubricating...	07/20/2004
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 alpha-olefin of 3 to 20 carbon atoms, in the presence of a combinati...	05/04/2004
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 used in various functional fluids....	03/09/2004
6617467	Process for producing polyalkylene carbonates A polyalkylene carbonate, an alternating copolymer, may be prepared by the ring opening of an alkene oxide or an alkene oxide precursor in the presence of carbon dioxide or any substance delivering carbon oxide, in the presence of at least one catalyst co...	09/09/2003
6589920	Viscosity modifier for lubricating oil and lubricating oil composition The lubricating oil composition of the invention comprises a lubricating oil base (A) and a copolymer (B) of ethylene and an ଱-olefin of 3 to 20 carbon atoms. The copolymer (B) of ethylene and an ଱-olefin of 3 to 20 carbon atoms is contained i...	07/08/2003
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 terpolymer, ethylene/styrene/isobutene terpolymer, ethylene/&#...	07/01/2003
6525007	Viscosity modifier for lubricating oil and lubricating oil composition The present invention is intended to obtain a viscosity modifier for a lubricating oil, by the use of which a lubricating oil composition of excellent low-temperature properties can be obtained, and to obtain a lubricating oil composition of excellent low...	02/25/2003
6448452	Fluorine-containing diene, its production method and its polymer A polymer which contains monomer units formed by polymerization of a fluorine-containing diene of formula 1: CF2.dbd.CF(CF2)n CXYOCF.dbd.CF2 Wherein X and Y are hydrogen and chlorine, hydrogen and-bromine, hydrogen a...	09/10/2002
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 alpha-olefin of 3 to 20 carbon atoms, in the presence of ...	07/09/2002
6414090	Process for producing a polymer of an ଱-olefin and lubricant A process for producing a polymer of an ଱-olefin. The process includes polymerizing one or more ଱-olefins having at least 4 carbon atoms in the presence of a catalyst for producing polymers of olefins. The catalyst contains (A) a specific meta...	07/02/2002
6407299	Alkyl magnesium catalyzed synthesis of ethylene and ଱-olefin polymers The present invention is a two-component catalyst system comprising (a) an alkyl magnesium (MgR2) component and (b) a Lewis acid component. The catalyst system is used for catalyzing the oligomerization and polymerization of ethylene and/or &#x...	06/18/2002
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 alpha-olefin of 3 to 20 carbon atoms, in the presence of ...	05/14/2002
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 as demonstrated by the severe Volkswagen T-4, Volkswagen TD...	11/06/2001
6291719	Methods and equipments of using dual functional catalyst of packing type The present invention relates to a method of catalyzing etherification, esterification, hydration, ether cleavage, isomerization alkylation, or other reactions which are catalyzable with an acid or molecular sieve catalyst. Said reactions are conducted us...	09/18/2001
6262324	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 alpha-olefin of 3 to 20 carbon atoms, in the presence of ...	07/17/2001
6150576	Synthesis of branched polyethylene fluids for use in lubricant compositions The novel synthetic polyethylene fluids of the present invention are characterized by high viscosity indices (about 94-151 VI), low pour points (about -60 to -10° C.), and a kinematic viscosity of about 6 to 28 cSt KV at 100° C. The product compositions...	11/21/2000
6143846	Polypropylene wax The present invention relates to homopolymer and copolymer waxes which have been prepared by polymerization using metallocene compounds in the presence of hydrogen and have a melt viscosity of less than 100 mPas, measured at 170° C. As a result of their ...	11/07/2000
6124513	Ethylene-alpha-olefin polymers, processes and uses A novel series of copolymers and terpolymers, usefull as base oils for synthetic lubricants, are produced by polymerization of ethylene, an alpha-olefin, and optionally a third monomer comprising an alpha-olefin of 3 to 20 carbon atoms, in the presence of...	09/26/2000
6114542	Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides having the formula: ##STR1## or a fuel soluble salt thereof. The compounds of formula I are useful as fuel additives for the prevention and control of engine deposits....	09/05/2000
6071863	Biodegradable polyalphaolefin fluids and formulations containing the fluids Biodegradable polyalphaolefin fluids which are useful in functional fluid and lubricant compositions are oligomers of mixtures of C12 and C14 alphaolefins. The fluids have kinematic viscosities at 100° C. of from 5 to 20 mm2	06/06/2000
6063880	Process for the preparation of a polyolefin wax If a catalyst consisting of an aluminoxane and a metallocene of the formula I ##STR1## in particular R5 R6 C (Ind)2 or R5 R6 C (Ind)2 Zr(CH3)2, is employed for th...	05/16/2000
6063973	Synthesis of branched polyethylene fluids for use in lubricant compositions The novel synthetic polyethylene fluids of the present invention are characterized by high viscosity indices (about 94-151 VI), low pour points (about -60 to -10° C.), and a kinematic viscosity of about 6 to 28 cSt KV at 100° C. The product compositions...	05/16/2000
5929185	Copolymers of alk-1-enes and ଱, ω-dienes having a high viscosity index Copolymers have a viscosity index VI of more than 160 and comprise A) from 99.0 to 99.99 % by weight of C2 -C20 -alk-1-enes and B) from 0.01 to 1.0% by weight of C5 -C20 -଱,ω-dienes having isolated double bonds....	07/27/1999
5880241	Olefin polymers Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal comp...	03/09/1999
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 and a cocatalyst, wherein the metallocene is a compound of ...	05/12/1998
5728911	Process for the preparation of low molecular weight copolymers of ethylene with at least one other 1-alkene A copolymer having an RSV less than 0.6 and a process for its preparation in which ethylene, at least one other 1-alkene and, optionally, an aliphatic or alicyclic polyunsaturated monomer are polymerized in the presence of a catalyst system containing (1)...	03/17/1998
5698751	Branched polyene compounds and production thereof A branched polyene compound represented by the formula ##STR1## wherein f is an integer of 1-5; R1 and R2 represent hydrogen atoms or alkyl groups of 1-5 carbons; R3 represents a hydrogen atom or an alkyl group of 1-5...	12/16/1997

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Class 585/18 - Acyclic