278 results about "Decene" patented technology

A liquid polyalphaolefin homo- or copolymer, preferably 1-decene, which is substantially amorphous is obtained by a polymerization process employing hydrogen and a particular type of metallocene catalyst. Additionally, liquid polyalphaolefin homo- or copolymer containing from 2 to about 12 carbon atoms possess a unique combination of properties, i.e., low molecular weight (M_w), low polydispersity index (M_w/M_n controllable kinematic viscosity (Kv₁₀₀), low Iodine Number (I₂) and low glass transition temperature (T_g) and are substantially amorphous. The liquid polyalphaolefin homo- or copolymers provided herein are useful for manufacturing a variety of products including lubricating oils in which the polyalphaolefin functions as a viscosity modifier.

A process of preparing an unsaturated alcohol (olefin alcohol), such as, a homo-allylic mono-alcohol or homo-allylic polyol, involving protecting a hydroxy-substituted unsaturated fatty acid or fatty acid ester, such as methyl ricinoleate, derived from a seed oil, to form a hydroxy-protected unsaturated fatty acid or fatty acid ester; homo-metathesizing or cross-metathesizing the hydroxy-protected unsaturated fatty acid or fatty acid ester to produce a product mixture containing a hydroxy-protected unsaturated metathesis product; and deprotecting the hydroxy-protected unsaturated metathesis product under conditions sufficient to prepare the unsaturated alcohol. Preferably, methyl ricinoleate is converted by cross-metathesis or homo-metathesis into the homo-allylic mono-alcohol 1-decene-4-ol or the homo-allylic polyol 9-octadecene-7,12-diol, respectively.

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 monomers, the two monomers comprising a decene and propene, the process comprising the steps of, inter alia, providing a correlation between the total amount of propene used to form the polyalphaolefin and at least one of branch level or viscosity of the polyalphaolefin to make polyalphaolefins comprising decene and propene with predictable branch levels and viscosities.

A multi-layer packaging film is provided having at least four layers arranged in sequence comprising: (1) a heat-sealing first layer comprising at least 50% by weight of a copolymer of propene, and at least one α-olefin selected from the group consisting of ethylene, butene-1, methylpentene-1, hexene-1, octene-1, decene-1 and mixtures thereof, said copolymer having a propene content of at least 60 wt. %, a Tm between about 100° C. and about 145° C., a Mw/Mn of between 1 and 5, and n-hexane extractables of less than 4 wt. %; (2) second and fourth layers each comprising (a) at least 10 wt. % of a first copolymer of ethylene and at least one C₄-C₈ α-olefin, said copolymer having a density of from 0.900 to 0.915 g/cm³ and a melt index of less than 2 dg/min., (b) at least 10 wt. % of a second copolymer of ethylene with from 4 to 18 wt. % of a vinyl ester, alkyl acrylate, acrylic or methacrylic acid, and (c) from 0 to 60 wt. % of a third copolymer of ethylene and at least one C₃-C₈ α-olefin having a density less than 0.900 g/cm³ and a melting point less of between 65-98° C.; and (3) a third layer comprising at least 80% by weight of at least one copolymer of vinylidene chloride with from 2-20 wt. % (based on said copolymer) of vinyl chloride or methyl acrylate.

This invention relates to the use of olefin mixtures containing 1-hexene/1-decene/1-dodecene and, additionally, 1-octene or 1-decene to produce high viscosity polyalphaolefins (PAOs) having a viscosity of from about 40 cSt to about 100 cSt at 100° C. (ASTM D-445) and a number average molecular weight of between about 1200 to about 4000, particularly useful as lubricant base stocks.

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 metallocene to form the polyalphaolefin, wherein the molar ratio of the aluminoxane to the metallocene is less than 250:1. The invention also relates to a process for forming a polyalphaolefin having a desired kinematic viscosity from at least one monomer in the presence of an aluminoxane, an organoboron compound and a metallocene. The process comprises the steps of, inter alia, providing a correlation between (i) the molar ratio of the aluminoxane to at least one of the organoboron compound and the metallocene, and (ii) the kinematic viscosity of the polyalphaolefin to form polyalphaolefins having predictable viscosities.

A catalyst used for making isodecyl alcohol with decene aldehyde gas phase hydrogenation and a preparation method belong to the technical field of catalyst. The catalyst uses coprecipitation to prepare, and mainly comprises copper oxide, zinc oxide, alumina, the content of which is respectively 20%-70%, 28%-70%, and 1%-10%. The active assistant has the content of 0.1%-2.0% (m/m). The catalyst is used for making isodecyl alcohol with decene aldehyde gas phase hydrogenation, with higher decene aldehyde conversion rate (more than or equal to 99.1%) and isodecyl alcohol selectivity (more than or equal to 96.4%).

Disclosed herein is a method of making a PAO using tetradecene and particularly mixtures comprising 1-hexene, 1-decene, 1-dodecene, and 1-tetradecene, characterized by a low viscosity and excellent cold temperature properties, using a promoter system comprising an alcohol and an ester. In embodiments, the product has properties similar to those obtainable using a feed of solely 1-decene.

The present invention relates to a preparation method of poly-alpha-olefin synthetic oil with high viscosity index. Said method includes the following steps: in a still-type reactor making alpha-decene raw material be contacted with active chrome catalyst, under the condition of 0.1-20 MPa and 100-250 deg.C making reaction for 2-20 h, separating catalyst, reaction product and unreacted alpha-decene, making the described reaction product undergo the process of hydrogenation treatment so as to obtain the invented product poly-alpha-olefin synthetic oil.

A process is disclosed for making stable colloidal dispersions (latexes) that form polymeric films containing fluoro-monomers such as heptadecafluorodecyl methacrylate (FMA), heptadecafluorodecyl acrylate (FA), heptadecafluoro-1-decene (FD), heptafluorobutyl acrylate (FBA), and heptafluorobutyl methacrylate (FBMA). The process involves use of a surfactant system containing a fluorocarbon-containing phosphoric acid ester salt such as phosphoric acid bis(tridecafluorooctyl) ester ammonium salt and an anionic alkyl sulfate such as sodium dodecyl sulfate. The combination of polymerization conditions and surfactant system facilitates a suitable environment for the aqueous copolymerization of the fluoro-monomer with one or more co-monomers in the acrylate and/or methacrylate families, such as n-butyl acrylate and methyl methacrylate.

The invention relates to a supported catalyst for alpha-olefin oligomerization, and preparation and application thereof. The catalyst takes gamma-aluminium oxide as a carrier, which is loaded with aluminium trichloride and a VIII group transition metal salt; the catalyst comprises the following components according to weight percentage: 2.5-6.0% of aluminium, 6.0-12.0% of chlorine, 0.5-5.0% of VIII group transition metal salt, and rest being the gamma-aluminium oxide besides SO42- and/or NO3-; and the VIII group transition metal is iron, cobalt, nickel or copper. The supported catalyst exhibits high activity and high stability in catalyzing the oligomerization reaction of 1-decene or 1-octene, overcomes the strong corrosivity of the aluminium trichloride catalyst, and is easy to be separated from the product, and also avoids the problems of a large quantity of sewage and environmental pollution produced by the aluminium trichloride catalyst.

The invention relates to a method of making a PAO from mixtures comprising 1-decene and 1-dodecene, characterized by a low viscosity and excellent cold temperature properties, using a promoter system comprising an alcohol. In embodiments, the product has properties similar to those obtainable using a feed of solely 1-decene.

The invention relates to a copolymerization method of ethane/alpha-alkene, which is characterized in that: a mixture of constrained geometry carbon-bridged single metallocene is used as catalyst to catalyze ethane/alpha-alkene copolymerization; constrained geometry carbon-bridged single metallocene catalyst comprises a constrained geometry carbon-bridged single metallocene compound which is represented by the following structural general formula (I): R represents H or tertiary butyl or allyl containing 1-10 carbon atoms; R1, R2 respectively represents H or alkyl or aromatic base containing 1-10 carbon atoms; M represents Ti or Zr; Cp represents cyclopentadienyl, substituted cyclopentadienyl, indenyl or substituted indenyl; the molo ratio of the constrained geometry carbon-bridged single metallocene compound to the other compounds is 5-7:1; fulvene and amido are subject to a lithium reaction and then followed by a complexation with metal, thereby that the mixture of constrained geometry carbon-bridged single metallocene containing different substituents is obtained. The method disclosed in the invention can be used in the copolymerization of ethane/1-hexane, ethane/1-octene and ethane/1-decene, and the insertion rate of long-chain alpha-alkene is high.

Absorbent articles comprising one or more complexed or encapsulated compounds compounds selected from: melonal, adoxal, trans-2-hexenal, ligustral, Floral Super, Florhydral, 5-methyl-2-thiophene-carboxaldehyde, hydratropic aldehyde, undecenal, 9-undecenal, 10-undecenal, trans-4-decenal, cis-6-nonenal, isocyclocitral, precyclemone b, (E)-2,(z)-6-nonadienal, undecyl aldehyde, methyl-octyl-acetaldehyde, Lauric aldehyde, silvial, vanillin, floralozone; are particularly effective in reducing malodors coming from degradation of proteinaceous materials such as food, menses or feces.

A process for the co-oligomerization of 1-dodecene and 1-decene to produce a polyalphaolefin having a kinetic viscosity of 4 to 6 cSt at 100° C., a Noack weight loss of 4 to 9%, a viscosity index of 130 to 145, and a pour point of -60° C. to -50° C.

The invention discloses a preparation method and a new application of a gamma-alumina supported aluminum trichloride catalyst. The preparation method comprises the following steps: 1, gamma-alumina carrier dipping processing: dipping a gamma-alumina carrier in a weakly alkaline solution, carrying out vacuum drying, and roasting at a high temperature; and 2, aluminum trichloride solution immobilization: dissolving anhydrous aluminum trichloride in toluene to prepare a solution, adding the activated alumina carrier, maintaining a reflux temperature for a certain period of time, filtering, removing the organic solvent, washing with toluene, and carrying out vacuum drying to obtain the gamma-alumina supported aluminum trichloride catalyst which contains 6.04-17.9omega% of Cl. The prepared gamma-alumina supported aluminum trichloride catalyst can be used for catalyzing a 1-decene oligomerization reaction to prepare a 1-decene oligopolymer. The conversion rate of 1-decene is equal to or greater than 60omega%. The preparation method which adopts toluene as the solvent has the advantages of improvement of the solubility of aluminum trichloride, high efficiency of the immobilization reaction, realizing of clean supporting, and processing reduction of three wastes, and is convenient for industrialized production.