MOBILE ELECTRONIC PARTS

A mobile electronic part consisting of: (i) a pre-treated shaped metal part wherein the metal is selected from a group consisting of magnesium, aluminum and alloys of these metals, and (ii) an overmolded composition layer [layer (C), herein after] bonded onto said pre-treated shaped metal part wherein said composition comprises at least one poly(ethersulfone) polymer [(PESU) polymer herein after]. 115-. (canceled)16. A mobile electronic part comprising:(i) a pre-treated shaped metal part wherein the metal is selected from the group consisting of magnesium, aluminium, and alloys of these metals; and(ii) an overmolded composition layer (C), bonded onto the pre-treated shaped metal part wherein the composition layer (C) comprises at least one poly(ethersulfone) polymer (PESU).18. The mobile electronic part according to claim 16 , wherein the (PESU) polymer has a melt flow rate (MFR) equal to or higher than 20 g/10 min at 380° C. and under a load of 2.16 kg.19. The mobile electronic part according to claim 16 , wherein the (PESU) polymer is functionalized by one or more functional groups.20. The mobile electronic part according to claim 19 , wherein the functional group is selected from a group consisting of an hydroxyl claim 19 , a carboxyl of formula —COOA claim 19 , wherein A is hydrogen or an alkali metal claim 19 , anhydride claim 19 , and epoxide group.21. The mobile electronic part according to claim 20 , wherein the hydroxyl group is a phenol OH group and the number of phenol OH groups is equal to or more than 10 μeq/g.22. The mobile electronic part according to claim 16 , wherein the thickness of the composition layer (C) is of at most 3000 μm.23. The mobile electronic part according to claim 16 , wherein the mobile electronic part is selected from a group consisting of fitting parts claim 16 , snap fit parts claim 16 , screw bosses parts claim 16 , mutually moveable parts claim 16 , functional elements claim 16 , operating elements claim 16 , tracking elements ...

Polyamide compositions and article manufactured therefrom

Polyamide composition very well suited for the manufacture of LED devices comprising: (a) at least a polyamide comprising recurring units derived from at least one C6 and/or at least one C10 diamine and from at least one dicarboxylic acid of the formula HO—C(═O)—R—C(═O)—OH wherein R is a cycloaliphatic moiety; (b) at least a reinforcing filler, and (c) at least a white pigment selected from a group consisting of TiO, ZnS, ZnO and BaSO. 1. A composition comprising:at least one polyamide polymer comprising recurring units derived from at least one C6 diamine and/or at least one C10 diamine and from at least one dicarboxylic acid (A) of the formula HO—C(═O)—R—C(═O)—OH wherein R is a cycloaliphatic moiety;at least one reinforcing filler; and{'sub': 2', '2', '4, 'at least one white pigment selected from the group consisting of TiO, ZnS, ZnO, and BaSO.'}2. The composition according to claim 1 , wherein said reinforcing filler comprises wollastonite or glass fiber.3. The composition according to claim 1 , wherein said white pigment comprises TiO.4. The composition according to claim 1 , wherein the composition comprises claim 1 , based on the total weight of the composition claim 1 , at least 40 wt. % of the polyamide polymer.5. The composition according to claim 1 , wherein the composition comprises claim 1 , based on the total weight of the composition is at least 15 wt. % of the reinforcing filler.6. The composition according to claim 1 , wherein the composition comprises claim 1 , based on the total weight of the composition claim 1 , at least 6 wt. % of the white pigment.7. The composition according to claim 1 , wherein the at least one polyamide polymer further comprises recurring units derived from at least one dicarboxylic acid (B) claim 1 , wherein the dicarboxylic acid (B) is different from the dicarboxylic acid (A).8. The composition according to claim 7 , wherein the at least one dicarboxylic acid (B) is selected from the group consisting of isophthalic acid ...

Mobile electronic devices made of amorphous polyamides

The present invention relates to components of mobile electronic devices made of an amorphous polyamide composition characterized by excellent mechanical properties, low moisture uptake, low distortion and very good aesthetical properties. The amorphous polyamide has recurring units derived from the polycondensation of a mixture of monomers of aromatic dicarboxylic acid(s), cycloaliphatic diamine(s) with 6 to 12 carbon atoms, and a third monomer with 10 to 16 carbon atoms.

Polyarylene ether ketones

The invention pertains to novel aromatic ether ketone polymers derived from bio-based feed-stocks, comprising recurring units of formula (R): wherein: —E is selected from the group consisting of: —each of R, equal to or different from each other, is selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium; —j is zero or is an integer from 1 to 4, to a process for their manufacture and to the use of the same for manufacturing shaped articles. 7. The polymer (b-PAEK) of claim 1 , said polymer (b-PAEK) having a polydispersity index of less than 2.5.12. A method for making a membrane claim 1 , a sheet claim 1 , a film claim 1 , or a three-dimensional moulded part claim 1 , comprising processing the polyarylene ether ketone [polymer (b-PAEK)] of .13. A method according to claim 12 , wherein said polymer (b-PAEK) is processed by melt processing and/or by solution processing.14. A shaped article comprising the polymer (b-PAEK) of selected from the group consisting of melt processed films claim 1 , solution processed films claim 1 , melt process monofilaments and fibers claim 1 , solution processed monofilaments claim 1 , hollow fibers and solid fibers claim 1 , injection molded objects claim 1 , and compression molded objects.15. A membrane for bioprocessing or medical filtration comprising the polymer (b-PAEK) of claim 1 , selected from hemodialysis membranes claim 1 , membranes for food and beverage processing claim 1 , membranes for waste water treatment and membranes for industrial process separations involving aqueous media.16. A shaped article comprising the polymer (b-PAEK) of selected from films and sheets.17. A method for coating substrates comprising using the polymer (b-PAEK) of claim 1 , said method comprising using a liquid composition ...

Improved mobile electronic parts

A mobile electronic part comprising: (i) a shaped metal part, at least part of the surface thereof being coated with at least one polymer layer (L), wherein the metal is selected from a group consisting of magnesium, aluminum and alloys of these metals, and wherein said polymer layer (L) comprises at least one polymer selected from an aromatic polyamide-imide polymer [(PAI) polymer, herein after] or a poly(ethersulfone) polymer [(PESU) polymer herein after], and (ii) a thermoplastic resin composition layer [layer (T), herein after] fixed to the at least one polymer layer (L) of said shaped metal part wherein said composition comprises at least one thermoplastic polymer [polymer (T), herein after]. 115-. (canceled)16. A mobile electronic part comprising:(i) a shaped metal part, at least part of the surface thereof being coated with at least one polymer layer (L), wherein the metal is selected from the group consisting of magnesium, aluminium, and alloys of these metals, and wherein said polymer layer (L) comprises at least one polymer selected from an aromatic polyamide-imide polymer, (PAI) polymer, or a poly(ethersulfone) polymer, (PESU) polymer, and(ii) a thermoplastic resin composition layer, layer (T), fixed to the at least one polymer layer (L) of said shaped metal part, wherein said layer (T) comprises at least one thermoplastic polymer, polymer (T).17. A mobile electronic part comprising a shaped metal part , at least part of the surface thereof being coated with at least one polymer layer (L) , wherein the metal is selected from the group consisting of magnesium , aluminium , and alloys of these metals , and wherein said polymer layer (L) comprises at least one poly(ethersulfone) polymer , (PESU) polymer.18. The mobile electronic part according to claim 16 , wherein the polymer (T) is selected from the group consisting of polyamides claim 16 , polyesters claim 16 , pol(yaryletherketone)s claim 16 , poly(arylethersulfone)s claim 16 , polyimides claim 16 , ...

Coatings for electrodes in electric arc furnaces

Described are graphite-containing electrodes comprising zirconium-based coatings, which slow the loss of material from the electrodes when used at high temperatures, for example when used in arc furnaces between 1000 and 2000° C. The zirconium-based coating may be disposed on a graphite-containing surface of the electrode, or on a pre-coating disposed on a surface of the electrode. The zirconium-based coatings include one or more zirconium compounds such as zirconia. Also described are compositions and methods to coat graphite-containing electrodes with zirconium-based coating compositions.

NOVEL ONE-POT HOMOGENEOUS PROCESS FOR THE LARGE SCALE MANUFACTURE OF 2-SUBSTITUTED BENZIMIDAZOLES

2-substituted benzimidazoles and methods of preparing the same are disclosed. The compositions may include a compound or salt thereof, an acid, and a polar aprotic solvent. The compositions may be used to inhibit corrosion of a metal surface in contact with an aqueous system, and provide enhanced protection against corrosion of metals in the aqueous system. 2. The composition of claim 1 , further comprising water.3. The composition of claim 1 , whereinX is independently hydrogen or halogen;{'sup': '1', 'Ris hydrogen;'}{'sup': '2', 'Ris absent; and'}{'sup': 3', '4, 'Ris CHR.'}4. The composition of claim 1 , wherein at least one Z is nitrogen.5. The composition of claim 1 , wherein Ris a bond and at least one Z is nitrogen.7. The composition of claim 1 , wherein the acid is selected from sulfuric acid claim 1 , hydrochloric acid claim 1 , nitric acid claim 1 , methanesulfonic acid claim 1 , phosphoric acid claim 1 , sulfamic acid claim 1 , aminomethylphosphonic acid claim 1 , p-toluenesulfonic acid claim 1 , and any combination thereof.8. The composition of claim 1 , wherein the polar aprotic solvent is selected from acetonitrile claim 1 , N claim 1 ,N-dimethylformamide claim 1 , acetone claim 1 , dimethylsulfoxide claim 1 , sulfolane claim 1 , N-methylpyrrolidinone claim 1 , methylsulfonylmethane claim 1 , chlorobenzene claim 1 , o-dichlorobenzene claim 1 , nitromethane claim 1 , an ionic liquid claim 1 , and any combination thereof.9. The composition of claim 1 , wherein the composition is homogenous liquid.10. The composition of claim 1 , further comprising a high temperature stable phase transfer catalyst.11. The composition of claim 10 , wherein the high temperature stable phase transfer catalyst is selected from the group consisting of an alkyl guanidinium salt claim 10 , an aryl guanidinium salt claim 10 , an alkyl phosphonium salt claim 10 , an aryl phosphonium salt claim 10 , a peralkylated phosphazenium salt claim 10 , and any combination thereof.13. The ...

Polyarylene ether sulfones

A process for the manufacturing of a poly(arylether sulfone) polymer comprising reacting in a solvent mixture comprising a polar aprotic solvent and in the presence of an alkali metal carbonate, a monomer mixture which contains: at least one 1,4:3,6-dianhydrohexitol selected from the group consisting of isosorbide (1), isomannide (2) and isoidide (3); at least one dihaloaryl compound of formula (S): X—Ar 1 —SO 2 —[Ar 2 —(T-Ar 3 ) n —SO 2 ] m —Ar 4 —X wherein n and m, equal to or different from each other, are independently zero or an integer of 1 to 5; X and X′, equal to or different from each other, are halogens selected from F, Cl, Br, I; each of Ar 1 , Ar 2 , Ar 3 and Ar 4 equal to or different from each other and at each occurrence, is an aromatic moiety, T is a bond or a divalent group optionally comprising one or more than one heteroatom; optionally, at least one dihydroxyl compound different from the diol (AA); optionally, at least one dihaloaryl compound different from the dihalo (BB); and optionally, at least one hydroxyl-halo compound [hydro-halo (A′B′)]; being understood that the overall amount of halo-groups and hydroxyl-groups of the monomers of the monomer mixture is substantially equimolecular, so as to obtain a polymer (b-PAES), wherein the reaction is carried out at a total % monomer mixture concentration equal to or more 10 % and less than 70 % with respect to the combined weight of monomer mixture and solvent mixture.

Polyarylene ether sulfones

A process for the manufacturing of a poly(arylether sulfone)polymer comprising reacting in a solvent mixture comprisng a polar aprotic solvent and in the presence of an alkali metal carbonate, a monomer mixture which contains: at least one 1,4:3,6-dianhydrohexitol selected from the group consisting of isosorbide (1), isomannide (2) and isoidide (3); at least one dihaloaryl compound of formula (S): X—Ar—SO-[Ar-(T-Ar)n-SO]-Ar—X wherein n and m, equal to or different from each other, are independently zero or an integer of 1 to 5; X and X′, equal to or different from each other, are halogens selected from F, Cl, Br, I; each of Ar, Ar, Arand Arequal to or different from each other and at each occurrence, is an aromatic moiety, T is a bond or a divalent group optionally comprising one or more than one heteroatom; optionally, at least one dihydroxyl compound different from the diol (AA); optionally, at least one dihaloaryl compound different from the dihalo (BB); and optionally, at least one hydroxyl-halo compound [hydro-halo (A′B′)]; being understood that the overall amount of halo-groups and hydroxyl-groups of the monomers of the monomer mixture is substantially equimolecular, so as to obtain a polymer (b-PAES), wherein the reaction is carried out at a total % monomer mixture concentration equal to or more 10% and less than 70% with respect to the combined weight of monomer mixture and solvent mixture. 116-. (canceled)19. The process according to claim 17 , wherein the monomer mixture comprises a dihaloaryl compound obtained by reaction of a precursor dihaloaryl compound of formula (S) claim 17 , wherein X claim 17 , X′ is CI claim 17 , precursor dihalo (BB) claim 17 , with at least one fluorinating agent.22. The process according to claim 17 , wherein the polar aprotic solvent is selected from a group consisting of dimethylsulfoxide claim 17 , dimethylsulfone claim 17 , diphenylsulfone claim 17 , diethylsulfoxide claim 17 , diethylsulfone claim 17 , diisopropylsulfone ...

Polyaryl Ether Polymers End-Capped with Phenolic Amino Acids

The invention relates to modified polyaryl ether polymers (PAEs) obtained by end-capping the polymers with a phenolic aminoacid, in particular with a bio-phenolic aminoacid such as L-tyrosine. The polymers of the present invention feature high thermal resistance and increased hydrophilicity. The present invention also relates to a method for the manufacture of those polymers, and their use in the manufacture of shaped articles including membranes. 115-. (canceled)19. The polyaryl ether polymer (p-PAE) according to wherein G is a —C(O)— group and wherein at least one of —O—R-O— is a group of formula —O—Ar-(T-Ar)—O— in which Ar , T , Arand n are as defined in .23. The process of wherein the phenolic aminoacid is L-tyrosine.24. The process of wherein the HO—Rdiol-OH is selected from the group consisting of isosorbide claim 22 , isomannide claim 22 , and isoidide.26. A method for manufacturing membranes claim 16 , films claim 16 , sheets claim 16 , and three dimensional moulded parts claim 16 , said method comprising the use of a polyaryl ether polymer (p-PAE) as defined in .27. A shaped article manufactured from the polyaryl ether polymer (p-PAE) of claim 16 , said article being selected from the group consisting of melt processed films claim 16 , solution processed films claim 16 , melt processed monofilaments claim 16 , melt processed fibers claim 16 , solution processed monofilaments claim 16 , hollow fibers claim 16 , solid fibers claim 16 , injection molded objects claim 16 , and compression molded objects.28. A shaped article manufactured from the polyaryl ether polymer (p-PAE) of claim 16 , said article being selected from membranes for bioprocessing claim 16 , membranes for medical filtrations claim 16 , membranes for food and beverage processing claim 16 , membranes for waste water treatment claim 16 , and membranes for industrial process separations involving aqueous media.29. A shaped article manufactured from the polyaryl ether polymer (p-PAE) of claim 16 , ...

COMPOSITIONS AND METHODS FOR REVERSE FROTH FLOTATION OF PHOSPHATE ORES

Improved sparge compositions for reverse froth flotation separation and uses thereof, and improved methods of reverse froth flotation are described. Described are sparge compositions comprising collectors and beneficiating agents, the collectors comprising sulfonated fatty acids and/or salts thereof, and the beneficiating agents comprising a hydroxy fatty acid composition. The sparge compositions are suitably used in the reverse froth flotation to separate phosphate beneficiary from ores comprising phosphate and dolomite, calcite, silicate, and/or other gangues. The disclosed compositions and methods exhibit improved separation of phosphate from such ores. 1. A sparge composition comprising:(i) a medium comprising water;(ii) a phosphate ore comprising a phosphate beneficiary and a gangue;(iii) a collector comprising one or more sulfonated fatty acids, one or more sulfonated fatty acid salts, or any combination thereof; and(iv) a beneficiating agent comprising one or more hydroxy fatty acids, one or more hydroxy fatty acid salts, or any combination thereof.2. The sparge composition of claim 1 , wherein the beneficiating agent comprises ricinoleic acid claim 1 , a salt of ricinoleic acid claim 1 , 12-hydroxystearic acid claim 1 , a salt of 12-hydroxystearic acid claim 1 , 9 claim 1 ,10-dihydroxyoctadecanoic acid claim 1 , a salt of 9 claim 1 ,10-dihydroxyoctadecanoic acid claim 1 , 9 claim 1 ,10 claim 1 ,18-trihydroxyoctadecanoic acid claim 1 , a salt of 9 claim 1 ,10 claim 1 ,18-trihydroxyoctadecanoic acid claim 1 , lesquerolic acid claim 1 , a salt of lesquerolic acid claim 1 , 15-hydroxyhexadecanoic acid claim 1 , a salt of 15-hydroxyhexadecanoic acid claim 1 , isoricinoleic acid claim 1 , a salt of isoricinoleic acid claim 1 , densipolic acid claim 1 , a salt of densipolic acid claim 1 , 14-hydroxy-eicosa-cis-11-cis-17-dienoic acid claim 1 , a salt of 14-hydroxy-eicosa-cis-11-cis-17-dienoic acid claim 1 , 2-hydroxyoleic acid claim 1 , a salt of 2-hydroxyoleic acid ...

COMPOSITIONS AND METHODS FOR REVERSE FROTH FLOTATION OF PHOSPHATE ORES

Improved sparge compositions for reverse froth flotation separation and uses thereof, and improved methods of reverse froth flotation are described. Described are sparge compositions comprising collectors and beneficiating agents, the collectors comprising sulfonated fatty acids and/or salts thereof, and the beneficiating agents comprising a hydroxy fatty acid composition. The sparge compositions are suitably used in the reverse froth flotation to separate phosphate beneficiary from ores comprising phosphate and dolomite, calcite, silicate, and/or other gangues. The disclosed compositions and methods exhibit improved separation of phosphate from such ores. 1. A sparge composition comprising:(i) a medium comprising water;(ii) a phosphate ore comprising a phosphate beneficiary and a gangue;(iii) a collector comprising one or more sulfonated fatty acids, one or more sulfonated fatty acid salts, or any combination thereof; and(iv) a beneficiating agent comprising one or more hydroxy fatty acids, one or more hydroxy fatty acid salts, or any combination thereof.2. The sparge composition of claim 1 , wherein the beneficiating agent comprises ricinoleic acid claim 1 , a salt of ricinoleic acid claim 1 , 12-hydroxystearic acid claim 1 , a salt of 12-hydroxystearic acid claim 1 , 9 claim 1 ,10-dihydroxyoctadecanoic acid claim 1 , a salt of 9 claim 1 ,10-dihydroxyoctadecanoic acid claim 1 , 9 claim 1 ,10 claim 1 ,18-trihydroxyoctadecanoic acid claim 1 , a salt of 9 claim 1 ,10 claim 1 ,18-trihydroxyoctadecanoic acid claim 1 , lesquerolic acid claim 1 , a salt of lesquerolic acid claim 1 , 15-hydroxyhexadecanoic acid claim 1 , a salt of 15-hydroxyhexadecanoic acid claim 1 , isoricinoleic acid claim 1 , a salt of isoricinoleic acid claim 1 , densipolic acid claim 1 , a salt of densipolic acid claim 1 , 14-hydroxy-eicosa-cis-11-cis-17-dienoic acid claim 1 , a salt of 14-hydroxy-eicosa-cis-11-cis-17-dienoic acid claim 1 , 2-hydroxyoleic acid claim 1 , a salt of 2-hydroxyoleic acid ...

LASER WELDABLE COMPOSITION AND METHOD USING THE SAME

A laser-weldable composition and method using the same, said composition comprising at least one amorphous polyamide made from the polycondensation of at least an acyclic aliphatic diamine comprising at least 10 carbon atoms and/or at least an acyclic aliphatic diacid comprising at least 10 carbon atoms, and at least a phthalic acid selected from the group consisting of terephthalic acid and isophthalic acid, at least one flat glass fiber; and at least one organic dye which absorbs radiation at a wavelength from 800 to 1400 nm. 115-. (canceled)17. The laser-weldable composition according to claim 16 , wherein the amorphous polyamide has a glass transition temperature (Tg) of at least 100° C. claim 16 , preferably at least 120° C. claim 16 , when measured by differential scanning calorimetry (DSC) at a heating rate of 20° C./min according to the ASTM E1356.18. The laser-weldable composition according to claim 16 , wherein the amorphous polyamide is present in an amount of at least 20 wt. % claim 16 , based on the total weight of the laser-weldable composition.19. The laser-weldable composition according to claim 16 , wherein the amorphous polyamide is present in an amount of at most 60 wt. % claim 16 , based on the total weight of the laser-weldable composition.20. The laser-weldable composition according to claim 16 , wherein the diacid includes terephthalic acid and isophthalic acid.21. The laser-weldable composition according to claim 20 , wherein the at least one cycloaliphatic diamine is 1 claim 20 ,3-bis(aminomethyl)cyclohexane (BAC).22. The laser-weldable composition according to claim 21 , wherein the cycloaliphatic diamine or diacid is present in an amount of at least 10 mol. % claim 21 , based on the total number of moles of diamines or diacids.23. The laser-weldable composition according to claim 16 , wherein the flat glass fiber is present in an amount of at least 20 wt. % claim 16 , based on the total weight of the laser-weldable composition.24. The ...

Inversion agents for water-in-oil lattices and methods of use

Water-in-oil lattices of water soluble polymers and methods of using the same are presented. The lattices are made, used, and stored having about 15 wt % to 70 wt % polymer solids and further include one or more alkyl ricinoleates. We have found that C1-C6 alkyl ricinoleates added to such lattices facilitate rapid and complete dilution to less than or equal to 1 wt % polymer solids in a continuous water phase. In particular under conditions wherein the water source used to invert the latex is provided at low temperature (−10° C. to 10° C.), or includes a high level of total dissolved solids, or is both low temperature and high total dissolved solids.

Mobile electronic devices made of amorphous polyamides

The present invention relates to components of mobile electronic devices made of an amorphous polyamide composition characterized by excellent mechanical properties, low moisture uptake, low distortion and very good aesthetical properties. The amorphous polyamide has recurring units derived from the polycondensation of a mixture of monomers of aromatic dicarboxylic acid(s), cycloaliphatic diamine(s) with 6 to 12 carbon atoms, and a third monomer with 10 to 16 carbon atoms.

A novel one-pot homogeneous process for the large scale manufacture of 2-substituted benzimidazoles.

Se divulgan bencimidazoles 2-sustituidos y métodos para preparar los mismos. Las composiciones pueden incluir un compuesto o una sal de este, un ácido y un solvente aprótico polar. Las composiciones pueden usarse para inhibir la corrosión de una superficie de metal en contacto con un sistema acuoso, y proporcionar una protección mejorada contra la corrosión de metales en el sistema acuoso. Fórmula (I). (VER FORMULA).

Improved compositions and methods for reverse froth flotation of phosphate ores

Improved sparge compositions for reverse froth flotation separation and uses thereof, and improved methods of reverse froth flotation are described. Described are sparge compositions comprising collectors and beneficiating agents, the collectors comprising sulfonated fatty acids and/or salts thereof, and the beneficiating agents comprising a hydroxy fatty acid composition. The sparge compositions are suitably used in the reverse froth flotation to separate phosphate beneficiary from ores comprising phosphate and dolomite, calcite, silicate, and/or other gangues. The disclosed compositions and methods exhibit improved separation of phosphate from such ores.

Method of forming a dry quaternary ammonium salt mixture

Disclosed herein is a method comprising: (a) adding an aqueous solution comprising a quaternary ammonium salt to an organic solvent in a vessel under an inert atmosphere, thereby forming a first mixture comprising the quaternary ammonium salt and the solvent; and (b) mixing the first mixture at a temperature and for a time sufficient to remove water and a portion of the solvent from the first mixture, wherein the mixing is performed in an inert atmosphere and the temperature is less than the decomposition temperature of the quaternary ammonium salt.

Mobile electronic devices made of amorphous polyamides

The present invention relates to components of mobile electronic devices made of an amorphous polyamide composition characterized by excellent mechanical properties, low moisture uptake, low distortion and very good aesthetical properties. The amorphous polyamide has recurring units derived from the polycondensation of a mixture of monomers of aromatic dicarboxylic acid(s), cycloaliphatic diamine(s) with 6 to 12 carbon atoms, and a third monomer with 10 to 16 carbon atoms.

Synthetic lubricity additives for hydrocarbon fuels

Lubricity additives for hydrocarbon fuels are provided according to formula I: (I) wherein n is 1 or 0; each Q is independently selected from oxygen and sulfur; each R is independently selected from C8-C60 alkenyl groups which are substituted or unsubstituted; and L is a linking group comprising 0-20 carbons which may be substituted or unsubstituted and may optionally comprise catenary heteroatoms. Fuel mixtures comprising a hydrocarbon fuel; and a lubricity additive according to the present disclosure are also provided. Methods of making lubricity additives comprise reacting an alkenyl succinic anhydrides (ASA's) with certain bisamides or bisthioamides.

Polyarylene ether sulfones

A process for the manufacturing of a poly (arylether sulfone) polymer comprising reacting in a solvent mixture comprising a polar aprotic solvent and in the presence of an alkali metal carbonate, a monomer mixture which contains: at least one 1,4:3,6-dianhydrohexitol selected from the group consisting of isosorbide (1), isomannide (2) and isoidide (3); at least one dihaloaryl compound of formula (S): X—Ar1—SO2—[Ar2—(T-Ar3)n—SO2]m—Ar4—X wherein n and m, equal to or different from each other, are independently zero or an integer of 1 to 5; X and X′, equal to or different from each other, are halogens selected from F, Cl, Br, I; each of Ar1, Ar2, Ar3 and Ar4 equal to or different from each other and at each occurrence, is an aromatic moiety, T is a bond or a divalent group optionally comprising one or more than one heteroatom; optionally, at least one dihydroxyl compound different from the diol (AA); optionally, at least one dihaloaryl compound different from the dihalo (BB); and optionally, at least one hydroxyl-halo compound [hydro-halo (A′B′)]; being understood that the overall amount of halo-groups and hydroxyl-groups of the monomers of the monomer mixture is substantially equimolecular, so as to obtain a polymer (b-PAES), wherein the reaction is carried out at a total % monomer mixture concentration equal to or more 10% and less than 70% with respect to the combined weight of monomer mixture and solvent mixture.

One-pot homogeneous process for the large scale manufacture of 2-substituted benzimidazoles

2-substituted benzimidazoles and methods of preparing the same are disclosed. The compositions may include a compound or salt thereof, a strong acid, and a carboxylic acid. The compositions may exclude a polar aprotic solvent. The compositions may be used to inhibit corrosion of a metal surface in contact with an aqueous system, and provide enhanced protection against corrosion of metals in the aqueous system.

Coatings for electrodes in electric arc furnaces

Described are graphite-containing electrodes comprising zirconium-based coatings, which slow the loss of material from the electrodes when used at high temperatures, for example when used in arc furnaces between 1000 and 2000 °C. The zirconium-based coating may be disposed on a graphite-containing surface of the electrode, or on a pre-coating disposed on a surface of the electrode. The zirconium-based coatings include one or more zirconium compounds such as zirconia. Also described are compositions and methods to coat graphite-containing electrodes with zirconium-based coating compositions.

Método de proteção de um eletrodo de forno a arco, eletrodo contendo grafite revestido, e, forno a arco

método de proteção de um eletrodo de forno a arco, eletrodo contendo grafite revestido, e, forno a arco. são descritos eletrodos contendo grafite compreendendo revestimentos à base de zircônio, que retardam a perda de material dos eletrodos quando usados em altas temperaturas, por exemplo quando usados em fornos a arco entre 1.000 °c e 2.000 °c. o revestimento à base de zircônio pode ser disposto sobre uma superfície contendo grafite do eletrodo, ou em um pré-revestimento disposto sobre uma superfície do eletrodo. os revestimentos à base de zircônio incluem um ou mais compostos de zircônio, como zircônia. também são descritas composições e métodos para revestir eletrodos contendo grafite com composições de revestimento à base de zircônio.

Coatings for electrodes in electric arc furnaces

Described are graphite-containing electrodes comprising zirconium-based coatings, which slow the loss of material from the electrodes when used at high temperatures, for example when used in arc furnaces between 1000 and 2000 °C. The zirconium-based coating may be disposed on a graphite-containing surface of the electrode, or on a pre-coating disposed on a surface of the electrode. The zirconium-based coatings include one or more zirconium compounds such as zirconia. Also described are compositions and methods to coat graphite-containing electrodes with zirconium-based coating compositions.

Coatings for electrodes in electric arc furnaces

Described are graphite-containing electrodes comprising zirconium-based coatings, which slow the loss of material from the electrodes when used at high temperatures, for example when used in arc furnaces between 1000 and 2000 °C. The zirconium-based coating may be disposed on a graphite-containing surface of the electrode, or on a pre-coating disposed on a surface of the electrode. The zirconium-based coatings include one or more zirconium compounds such as zirconia. Also described are compositions and methods to coat graphite-containing electrodes with zirconium-based coating compositions.

A novel one-pot homogeneous process for the large scale manufacture of 2-substituted benzimidazoles

2-substituted benzimidazoles and methods of preparing the same are disclosed. The compositions may include a compound or salt thereof, an acid, and a polar aprotic solvent. The compositions may be used to inhibit corrosion of a metal surface in contact with an aqueous system, and provide enhanced protection against corrosion of metals in the aqueous system. Formula (I).

Revestimientos para electrodos en horno de arco electrico.

Se describen electrodos que contienen grafito que comprenden revestimientos a base de circonio, que ralentizan la pérdida de material de los electrodos cuando se usan a altas temperaturas, por ejemplo, cuando se usan en hornos de arco entre 1000 y 2000 °C. El revestimiento a base de circonio puede disponerse sobre una superficie del electrodo que contiene grafito, o en un revestimiento previo dispuesto sobre una superficie del electrodo. Los revestimientos a base de circonio incluyen uno o más compuestos de circonio tales como circonia. También se describen composiciones y métodos para revestir electrodos que contienen grafito con composiciones de revestimiento a base de circonio.

One-pot homogeneous process for the large scale manufacture of 2-substituted benzimidazoles

2-substituted benzimidazoles and methods of preparing the same are disclosed. The compositions may include a compound or salt thereof, a strong acid, and a carboxylic acid. The compositions may exclude a polar aprotic solvent. The compositions may be used to inhibit corrosion of a metal surface in contact with an aqueous system, and provide enhanced protection against corrosion of metals in the aqueous system.

Multifunctional autonomically healing composite material

A composite material, contains a polymer, a polymerizer, a corresponding catalyst for the polymerizer, and a plurality of capsules. The polymerizer is in the capsules. The composite material is self-healing.

Improved compositions and methods for reverse froth flotation of phosphate ores

Polyarylene ether sulfones

A process for the manufacturing of a poly(arylether sulfone) polymer comprising reacting in a solvent mixture comprising a polar aprotic solvent and in the presence of an alkali metal carbonate, a monomer mixture which contains : at least one 1,4:3,6-dianhydrohexitol selected from the group consisting of isosorbide (1), isomannide (2) and isoidide (3); at least one dihaloaryl compound of formula (S) : X-Ar 1 -SO 2 -[Ar 2 -(T-Ar 3 )n-SO 2 ] m -Ar 4 -X wherein n and m, equal to or different from each other, are independently zero or an integer of 1 to 5; X and X', equal to or different from each other, are halogens selected from F, C1, Br, I; each of Ar 1 , Ar 2 , Ar 3 and Ar 4 equal to or different from each other and at each occurrence, is an aromatic moiety, T is a bond or a divalent group optionally comprising one or more than one heteroatom; optionally, at least one dihydroxyl compound different from the diol (AA); optionally, at least one dihaloaryl compound different from the dihalo (BB); and optionally, at least one hydroxyl-halo compound [hydro-halo (A'B')]; being understood that the overall amount of halo-groups and hydroxyl-groups of the monomers of the monomer mixture is substantially equimolecular, so as to obtain a polymer (b-PAES), wherein the reaction is carried out at a total % monomer mixture concentration equal to or more 10 % and less than 70 % with respect to the combined weight of monomer mixture and solvent mixture.

Multifunctional autonomically healing composite material

A composite material, contains a polymer, a polymerizer, a corresponding catalyst for the polymerizer, and a plurality of capsules. The polymerizer is in the capsules. The composite material is self-healing.

Synthetic lubricity additives for hydrocarbon fuels

Lubricity additives for hydrocarbon fuels are provided according to formula I: (I) wherein n is 1 or 0; each Q is independently selected from oxygen and sulfur; each R is independently selected from C8-C60 alkenyl groups which are substituted or unsubstituted; and L is a linking group comprising 0-20 carbons which may be substituted or unsubstituted and may optionally comprise catenary heteroatoms. Fuel mixtures comprising a hydrocarbon fuel; and a lubricity additive according to the present disclosure are also provided. Methods of making lubricity additives comprise reacting an alkenyl succinic anhydrides (ASA's) with certain bisamides or bisthioamides.

Composição, e, método para inibir corrosão

A presente invengao se refere a benzimidazois 2-substituidos e metodos para prepara- los. As composigoes podem incluir um composto ou sal do mesmo, um acido e um solvente aprotico polar. As composigoes podem ser usadas para inibir a corrosao de uma superficie de metal em contato com um sistema aquoso e fornecer protegao aprimorada contra a corrosao de metais no sistema aquoso.