Abstract: 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 with a weight average molecular weight .gtoreq.200,000 and (2) a low molecular weight (co- or homo-)polymer of propylene with a weight average molecular weight .ltoreq.100,000. The invention further relates to a lubricating grease composition comprising a lubricating oil and the above polymeric thickener, as well as a method for preparing said grease composition. Also, the invention relates to the use of such a polymer thickener in the preparation of lubricating grease compositions with improved oil bleeding characteristics at low temperature and improved noise characteristics and/or improved mechanical stability.

Abstract: 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 a liquid base material of a hydrogenated polyolefin and a fragrance. The fragrance-carrier composition may be poured into the reservoir of a tart candle from which the fragrance is caused to be dispersed by the heat from a flame. More specifically, the liquid base material is comprised of a hydrogenated polyisoalkene such as hydrogenated polyisobutene.

Abstract: Power transmitting fluids, especially automatic transmission fluids, possess improved properties such as antiwear, durability, antioxidation, and shift-time performance by incorporation of high viscosity polyalphaolefins.

Abstract: A process for producing an ethylene-.alpha.-olefin copolymer which includes subjecting ethylene to an oligomerization reaction in the presence of an oligomerization catalyst to convert a part of the ethylene to .alpha.-olefin, and thereby obtaining a reaction solution, a reaction gas or a mixture of the reaction solution and the reaction gas containing .alpha.-olefin and unreacted ethylene; distilling the reaction solution, the reaction gas or the mixture of the reaction solution and the reaction gas to obtain a mixture consisting mainly of ethylene and .alpha.-olefin from the top of the distillation column; and feeding a starting material containing the mixture obtained from the distillation column into a polymerization reactor, thereby copolymerizing the ethylene and .alpha.-olefin in the presence of a polymerization catalyst to obtain an ethylene-.alpha.-olefin copolymer.

Abstract: 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 monoterpenes but have flash points high enough to be classified as combustible rather than flammable materials.

Abstract: 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, containing a) a high melting point component comprising at least one polymer with a melting point (ASTM D-2117) of more than 200.degree. C., especially more than 225.degree. C., and b) a low molecular weight component comprising a (co- or homo-) polymer of propylene with a weight average molecular weight <100,000, and 3) optional further lubricating grease additives. The polymer thickener of the grease preferably further contains c) a high molecular weight component comprising a (co- or homo-) polymer of propylene with a weight average molecular weight >200,000. The grease preferably has a dropping point of >150.degree. C., more preferably 180.degree.-220.degree. C., and is suitable for use in high operating temperature applications.

Abstract: Polymers (including copolymers) derived from one or more olefins, such including ethylene and C.sub.3 -C.sub.20 .alpha.-olefins such as propylene and 1-butene, which polymers have (a) an average ethylene sequence length, ESL, of from about 1.0 to less than about 3.0; (b) an average of at least 5 branches per 100 carbon atoms of the polymer chains comprising the polymer; (c) at least about 50% of said branches being methyl and/or ethyl branches; (d) at least about 30% of said polymer chains terminated with a vinyl or vinylene group; (e) a number average molecular weight, Mn, of from about 300 to about 15,000 when the polymer is intended for dispersant or wax crystal modifier uses and up to about 500,000 where intended for viscosity modifier uses; and (f) substantial solubility in hydrocarbon and/or synthetic base oil.

Abstract: 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 crude, fuel or lubricating oil.

Abstract: The polymerization of a vinyl aromatic monomer such as styrene is inhibited by the addition of a composition of a benzoquinone derivative and a hydroxylamine compound.

Abstract: An electrically conducting polymer thickened grease composition containing1) a lubricating base oil,2) a polymer thickener,3) an electrically conducting component,4) optional further additives, is provided.The polymeric thickener is a mixture of (1) a (co- or homo-)polymer of propylene with a weight average molecular weight >200,000 and (2) a (co- or homo-)polymer of propylene with a weight average molecular weight <100,000. The electrically conducting component is preferably a metal containing additives, an anti-static agents or an electrically conducting solid. The grease composition can conduct electricity through the parts of a roller bearing, not only under static conditions, but also during use. This makes the greases especially suited for use in roller bearings with rotating electrical contacts. The grease can further reduce or prevent the build-up of static electricity and spark formation in roller bearings.

Abstract: 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 by a Q value (the ratio of the weight average molecular weight to the number average molecular weight) of not more than 3 and a Z value (the ratio of the maximum value of the molecular weight to the minimum value of the molecular weight when the molecular weight is measured by gel permeation chromatography) of from 15 to 200. The said copolymer can be produced by a process comprising copolymerizing ethylene with an alpha-olefin in the liquid phase in the presence of a polymerization catalyst composed of a combination of a soluble vanadium compound and an organoaluminum compound in the co-presence of hydrogen, characterized in that(a) the copolymerization is carried out in a continuous manner,(b) the concentration of the vanadium compound in the polymerization system is maintained at 0.

Abstract: 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.

Abstract: 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 the formula I ##STR1## in which M.sup.1 is a metal of group IVb, Vb or VIb of the Periodic Table of Elements, R.sup.1 and R.sup.2 are identical or different and are a hydrogen atom, a C.sub.1 -C.sub.10 -alkyl group, a C.sub.1 -C.sub.10 -alkoxy group, a C.sub.6 -C.sub.10 -aryl group, a C.sub.6 -C.sub.10 -aryloxy group, a C.sub.2 -C.sub.10 -alkenyl group, a C.sub.7 -C.sub.40 -arylalkyl group, a C.sub.7 -C.sub.40 -alkylaryl group, a C.sub.8 -C.sub.40 -arylalkenyl group or a halogen atom and R.sup.3 and R.sup.4 are identical or different and are a mononuclear or polynuclear hydrocarbon radical which may form a sandwich structure with the central atom M.sup.

Abstract: Gel-free dispersant additives for lubricating and fuel oil compositions comprise at least one adduct of (A) .alpha.-olefin homopolymer or interpolymer of 700 to 10,000 number average molecular weight, free radically grafted with an average of from about 0.

Abstract: A substrate for liquid-crystal displays is formed from polymers of polycyclic olefins by polymerization, without ring opening, of at least one monomer of the formula (I), (II), (III), (IV), (V) or (VI). The novel use of cycloolefin copolymers as substrate material facilitates process temperatures of above 180.degree. C. in the production of displays. Cycloolefin copolymers are lighter and less brittle than glass. Compared with other plastics, they have advantages in photoelastic constants, thermal expansion, hardness, density, transparency, water absorption and with respect to birefringence. Furthermore, they have high resistance to polar solvents.

Abstract: A composition of an oil of lubricating viscosity; a polymer, soluble in the lubricant composition and having a number average molecular weight of greater than 50,000; and a combustible solvent in which the remaining components of the lubricant are soluble, provides a composition suitable for lubricating a two-stroke cycle engine. The lubricant composition provides good lubricity with low smoke generation.

Abstract: Terpene dimer compositions are provided which dry into a hard, tack free film upon exposure to air. The compositions include a terpene dimer having the molecular formula C.sub.20 H.sub.32 and contain at least one double bond. The terpene dimer is derived from a naturally occurring monoterpene, or mixtures thereof, having the molecular formula C.sub.10 H.sub.16. In an another embodiment the compositions, in addition to the terpene dimer, include isomers of the monoterpenes. The compositions are substantially free of higher terpene oligomers having molecular formulas greater than C.sub.20 H.sub.32. Processes for making the terpene dimer compositions are also provided. Advantageous utilization of these compositions is as a diluent, solvent or component in coating, adhesive, alkyd or ink formulations, as an environmentally safe non-toxic material.

Abstract: Composition of lubricating oil which comprises: a) a greater portion of synthetic lubricating component or a mixture of synthetic lubricating component and a mineral base for lubricating oils, the synthetic lubricating component being prepared by the oligomerization and subsequent hydrogenation and the possible removal of low-boiling by-products, of a composition of olefins basically consisting of:1) a mixture of n-olefins having a content of olefins from C.sub.14 to C.sub.17, preferably from C.sub.15 to C.sub.16, of at least 80%, preferably greater than 85%,2) alpha olefins from C.sub.15 to C.sub.17, preferably basically C.sub.16, the content of the alpha olefin (2) being from 5 to 25% by weight, preferably from 10 to 20%, with respect to the sum of (1)+(2).

Abstract: A synergistic mixture of pour point depressants is disclosed along with hydrocarbon lubricants containing same. The pour point depressant mixture is a mixture of a first PPD comprising a near linear copolymer of a mixture of ethylene and C.sub.3 -C.sub.28 1-alkenes, or only 1-alkenes, wherein a large proportion of the pendant alkyl groups of the recurring 1-alkene monomer units contain between 14 and 22 carbon atoms; and an additional conventional PPD, preferably polymethylmethacrylate. The copolymer is produced by polymerization of mixed 1-alkenes with reduced chromium oxide catalyst on silica support.

Abstract: The stray misting property of anti-staining gear oil is reduced by adding to the gear oil from about 0.1 to 5 wt % polyisobutylene of about 37,000 to 140,000 Flory molecular weight.

Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated and functionalized. The dispersant substances include compositions including a copolymer of a ring substituted styrene and a conjugated diene. The polymers are selectively hydrogenated to produce polymers which have highly controlled residual amounts of aromatic unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.

Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated and functionalized. The dispersant substances include compositions including a copolymer of two different conjugated dienes, a copolymer of a p-alkylstyrene and a conjugated diene, or a homopolymer of a conjugated diene. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.

Abstract: Lubricating oil composition for use with sintered porous bearings includes a poly-.alpha.-olefin hydride or ethylene-.alpha.-olefin copolymer hydride containing base oil to which at least one additive selected from the group consisting of zinc dialkyl dithiophosphate, molybdenum dialkyl dithiocarbide, molybdenum dialkyl dithiophosphate and a sulfur-phosphorus containing extreme pressure additive is added in an amount of 0.01 to 5 parts by weight per 100 parts by weight of the base oil.

Abstract: There is disclosed a linear block copolymer comprising at least one triblock I--B--I, wherein I is a block of at least one polymerized conjugated diene of at least five (5) carbon atoms, such as isoprene, and B is a block of a polymer of at least one conjugated diene, different from that used to polymerize the block I, of at least four (4) carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks is unhydrogenated and therefore retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from a minor proportion of at least one aryl-substituted olefin, such as styrene, and a major proportion of at least one conjugated diene used to polymerize the block I, the second middle polymer block of at least one diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block.

Abstract: A lubricating oil composition for two-stroke cycle cylinder injection engines contains as essential ingredients: (A): a base oil containing (1) 10-30% by mass of polybutene with number-average molecular weight 250-350 on the basis of a total amount of the base oil, (2) 30-60% by mass of polybutene with number-average molecular weight 450-550 on the basis of the total amount of the base oil, and (3) 15-40% by mass of mineral oil and/or a synthetic oil, which is other than polybutene, with kinematic viscosity 2-35 mm.sup.2 /s at 100.degree. C., on the basis of the total amount of the base oil; and (B): 2-15 parts by mass of alkylaminophenol having an alkyl group with 8-400 carbon atoms relative to 100 parts by mass of the base oil.

Abstract: Certain hydrogenated oligomers of 1-alkene hydrocarbons have been found to be substantially biodegradable upon exposure to microbiological agents of types widely available in the environment. Thus, in an operation wherein lubricating oil or functional fluid is released into the environment, there is provided for use as the lubricating oil or functional fluid a substantially biodegradable lubricating oil or functional fluid at least 10 percent by volume of which is composed of at least one substantially biodegradable liquid hydrocarbon of lubricating viscosity formed by oligomerisation of 1-alkene hydrocarbon having 6 to 20 carbon atoms in the molecule and hydrogenation of the resultant oligomer.

Abstract: Gel-free dispersant additives for lubricating and fuel oil compositions comprise at least one adduct of (A) .alpha.-olefin homopolymer or interpolymer of 700 to 10,000 number average molecular weight, free radically grafted with an average of from about 0.

Abstract: Gel-free dispersant additives for lubricating and fuel oil compositions comprise at least one adduct of (A) .alpha.-olefin homopolymer or interpolymer of 700 to 10,000 number average molecular weight, free radically grafted with an average of from about 0.

Abstract: Novel fluid mixtures of specified hydrocarbons meeting an array of structural criteria are described. Linear hydrocarbons having terminal double bonds and internal segments of specified differing chain lengths separated by one or more carbon atom(s) each of which has a methylidene substituent make up one group of such compounds. Another group is alkenyl end-capped compounds of the first group. Third and fourth groups are products formed by hydrogenation of the first and second groups, respectively. The products, whether end-capped or not, and whether hydrogenated or not, have desirable lubricating properties such as suitably low pour points and/or low NOACK volatility and/or very high viscosity index and thus can be used as base oils or as components in formulating lubricants.

Abstract: 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.-olefin polymer composition, wherein R is H or alkyl, with a substantial portion of the polymer unsaturation as trisubstituted.

Abstract: There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of at least one polymerized conjugated diene of at least five (5) carbon atoms, such as isoprene, and B is a block of a polymer of at least one conjugated diene, different from that used to polymerize the block I, of at least four (4) carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks is unhydrogenated and therefore retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from a minor proportion of at least one aryl-substituted olefin, such as styrene, and a major proportion of at least one conjugated diene used to polymerize the block I, the second middle polymer block of at least one diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block.

Abstract: 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.

Abstract: A composition comprising (A) an ethylene-alpha olefin-bicyclic non-conjugated diene copolymer, wherein the alpha olefin contains from 3 to about 24 carbon atoms; (B) at least one organic sulfur containing compound selected from the group consisting of mercaptans and disulfides; and (C) a major amount of diluent; wherein the sulfur-containing compound (B) is present in amounts ranging from about 0.1% to about 15% by weight relative to the weight of the copolymer (A). This invention also relates to a method of shearing a composition comprising (A) an ethylene-alpha olefin-bicyclic non-conjugated diene copolymer and (C) a diluent, the improvement which comprises reducing or preventing the formation of gel-like particles on shearing by intimately mixing with said copolymer prior to shearing an amount of (B) an organic sulfur containing compound selected from the group consisting of mercaptans and disulfides in an amount sufficient to inhibit formation of said gel-like particles.

Abstract: .alpha.,.omega.-Diene oligomers which are useful as synthetic lubricants are prepared by oligomerizing a .alpha.,.omega.-diene using a trialkylaluminum catalyst.

Abstract: There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of at least one polymerized conjugated diene of at least five (5) carbon atoms, such as isoprene, and B is a block of a polymer of at least one conjugated diene, different from that used to polymerize the block I, of at least four (4) carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks is unhydrogenated and therefore retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from a minor proportion of at least one aryl-substituted olefin, such as styrene, and a major proportion of at least one conjugated diene used to polymerize the block I, the second middle polymer block of at least one diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block.

Abstract: The invention pertains to oil soluble copolymers derived from ethylene and 1-butene which have a number average molecular weight between about 1,500 and 7,500, at least about 30 percent of all polymer chains terminated with ethylvinylidene groups, and ethylene-derived content of not greater than about 50 weight percent, and which form solutions in mineral oil free of polymer aggregates, as determined by light scattering measurements. Lubricating oil additives, particularly dispersants, produced by the functionalization and derivatization of these copolymers have enhanced performance (e.g., improved dispersancy and pour point) in lubricating oil compositions, attributable in part to the combination of properties characterizing the copolymers.

Abstract: A hydrocarbon oligomer and a process for its production is disclosed that is useful as a pour point depressant and as a combination pour point depressant and viscosity index improver for mineral oil or synthetic oil. The oligomer is also useful in modifying wax crystal formation at low temperature when added to distillate fuels. The oligomer is a near linear copolymer of a mixture of ethylene and C.sub.3 -C.sub.28 1-alkenes, or only 1-alkenes, wherein a large proportion of the pendant alkyl groups of the recurring 1-alkene monomer units contain between 14 and 22 carbon atoms. The oligomer is produced by polymerization of mixed 1-alkenes with reduced chromium oxide catalyst on silica support.

Abstract: This invention relates to novel compositions of matter comprising free radical adducts of a fullerene with one or more saturated hydrocarbons having a number average molecular weight ranging from about 200 to about ten million. Attachment of saturated hydrocarbons to as many as fourteen sites on the fullerene surface can be achieved via free radical initiated reactions. Fullerenes also add to saturated hydrocarbons with functional groups selected from the group consisting of hydroxy, carboxy, and carboalkoxy radicals in the presence of a free radical initiator. Said radical adducts of substantially saturated hydrocarbons with fullerenes react further with alkylamines and polyamines to produce new compositions. The radical adducts, and their aminated derivatives are useful as dispersants and viscosity modifiers in lubricants.

Abstract: A process for isomerization of an endo-form of aromatic group-containing norbornenes represented by the following formula (I) to an exo-form which comprises bringing the endo-form into contact with a solid acid catalyst. ##STR1## wherein p is 0 or an integer of 1 or more, q and r are each 0, 1 or 2, R.sup.1 to R.sup.15 are each independently hydrogen or halogen atom, aliphatic hydrocarbon group, aromatic hydrocarbon group or alkoxy group, R.sup.5 (or R.sup.6) are R.sup.9 (or R.sup.7) may be linked together through an alkylene group of 1-3 carbons or may be directly linked together.

Abstract: A blend and a process for producing that blend in which a high ethylene content ethylene-propylene polymer and a lower ethylene content ethylene-propylene polymer are subjected to simultaneous blending and shearing to reduce their molecular weights and molecular weight distribution and to yield a product that can be recovered as a solid using conventional plastic processing equipment. The sheared blend of polymers can function as a shear stable viscosity index improver with improved lower temperature properties.

Abstract: The invention provides a two-step process for converting cyclopentadiene dimer to a high density fuel mixture comprising the steps of:(a) reacting said cyclopentadiene dimer in the presence of a solid catalyst comprising a porous crystalline material having a Constraint Index of from about 0.1 to about 12 under oligomerization/isomerization conditions to convert at least a portion of said cyclopentadiene dimer to a normally liquid intermediate product containing cyclopentadiene trimer, cyclopentadiene tetramer, and the isomerized and oligomerized products derived from the reaction of at least three cyclopentadiene monomer units;(b) hydrogenating said normally liquid intermediate product of step (a) in the presence of a hydrogenation catalyst to form a normally liquid high energy density fuel.

Abstract: 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 represented by the formula H.sub.2 C.dbd.CHR.sup.1 wherein R.sup.1 is an alkyl group of from 1 to 18 carbon atoms, wherein said polymer has a number average molecular weight of from above 25,000 to about 500,000, wherein an average of at least about 30 percent of the polymer chains contain terminal ethenylidene unsaturation, and wherein said polymer is prepared in the presence of a catalyst system comprising at least one metallocene and an alumoxane compound.

Abstract: Fully synthetic lubricating base oil compositions are formulated from blends of 50-97 wt % of synthetic hydrocarbons and 3-30 wt % isobutylene oligomers. The lubricating base oil composition have constant viscosity indexes which are higher than those of the components used to form the compositions. The synthetic hydrocarbon and isobutylene oligomers are combinable in various amounts with conventional additives to form multi-grade engine lubricants, which are shear stable.

Abstract: This invention relates to a process for the production of lubricating oils having a viscosity index of at least 120 and a pour point of at least -45.degree. C. by (a) oligomerizing a mixture of C5-C20 1-olefins comprising at least 2.6% w/w of 1-decene and at least 6% w/w of 1-hexene in the presence of a catalyst. The lubricating oil so formed may be hydrogenated in the presence of hydrogen to improve the oxidation stability thereof. The process is particularly suited to olefins feeds produced during a Fischer-Tropsch synthesis in which carbon monoxide and hydrogen are passed over a heated catalyst.

Abstract: The invention deals with viscosity improvers which are .alpha.-olefin polymers and are particularly useful in lubricating compositions comprising (A) a liquid .alpha.-olefin polymer having a number average molecular weight from about 2,000 to about 100,000 and having derived from .alpha.-olefins having from about 4 to about 30 carbon atoms, provided further that (A) has a bimodal molecular weight distribution having (i) a peak molecular weight maximum at 2,000 to 5,000 for a lower molecular weight component and (ii) a peak molecular weight maximum at 50,000 to 75,000 for a higher molecular weight component; (B) an oil of lubricating viscosity and (C) at least one member selected from the group consisting of a friction modifier, a sulfurized olefin, an ash-producing detergent and, an ashless dispersant.

Abstract: Composition of matter useful as multifunctional viscosity index improver for lubricating oil comprising reaction product of: (i) (a) molecular weight degraded ethylene-alpha-olefin copolymer obtained by degrading copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous copolymer chains containing at least one crystallizable segment of methylene units and at least one low crystallinity ethylene-alpha-olefin copolymer segment, wherein said copolymer has a molecular weight distribution characterized by at least one of a ratio of M.sub.w /M.sub.n of less than 2 and a ratio of M.sub.z /M.sub.w of less than 1.8, and said degraded copolymer grafted with (b) ethylenically monounsaturated carboxylic acid material having 1 to 2 carboxylic acid groups or anhydride group to form grafted ethylene copolymer; (ii) about C.sub.50 to about C.sub.

Abstract: There is disclosed a method of suppressing misting or spatting from an oil-containing functional fluid, such as a chain saw lubricant, by blending with the functional fluid a mist suppressing effective amount of a copolymer of a C.sub.3 or C.sub.4 alpha-monoolefin and at least one other alpha-monoolefin having from 5 to about 20 carbon atoms, said copolymer having a viscosity average molecular weight of from about 500,000 to about 10 million.

Abstract: In accordance with the present invention, there are provided an olefin polymerization catalyst formed from:[A] a compound of a transition metal belonging to Group IV B of the periodic table,[B] an aluminoxane, and[C] water,an olefin polymerization catalyst formed from [D] an organoaluminum compound in addition to the above-mentioned [A], [B] and [D] components, and processes for the polymerization of olefins using the above-mentioned olefin polymerization catalysts, respectively.

Abstract: Composition of matter useful as multifunctional viscosity index improver for lubricating oil comprising reaction product of:(i) (a) degraded ethylene-alpha-olefin copolymer obtained by degrading copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous copolymer chains containing at least one crystallizable segment of methylene units and at least one low crystallinity ethylene-alpha-olefin copolymer segment, wherein said at least one crystallizable segment comprises at least about 10 weight percent of said copolymer chain and contains at least about 57 weight percent ethylene, wherein said low crystallinity segment contains not greater than about 53 weight percent ethylene, and wherein said copolymer has a molecular weight distribution characterized by at least one of a ratio of M.sub.w /M.sub.n of less than 2 and a ratio of M.sub.z /M.sub.w of less than 1.

Abstract: Synthetic lubricant base stocks having improved properties are disclosed. The base stocks may be obtained by a two-step process, comprising the steps of (1) co-reacting vinylcyclohexene and long-chain linear olefin with a free-radical initiator; and (2) further reacting the mixture resulting from step (1) in the presence of an acidic montmorillonite clay.