Abstract: The invention pertains to certain copolymers (PEDEK/PEEK), comprising a majority of “PEDEK”-type recurring units, which, thanks to the predominance of PEDEK-type units, their structural homogeneity and regularity, and absence of chlorinated end groups, possess a suitable molecular structure and crystallization behaviour so as to deliver improved mechanical properties and outstanding chemical resistance, and which are useful in numerous fields of endeavours, including notably in the oil&gas industry, and more specifically for the manufacture of parts used in oil and gas extraction systems.

Abstract: A method for manufacturing a three-dimensional (3D) object with an additive manufacturing system, comprising a step consisting in printing layers of the 3D object from the part material comprising a polymeric component comprising, based on the total weight of the polymeric component: from 5 to 95 wt. % of at least one polymer (P1) comprising at least 50 mol. % of recurring units (R1) consisting of an arylene group comprising at least one benzene ring, each recurring unit (R1) being bound to each other through C—C bonds, wherein the recurring units (R1) are such that, based on the total number of moles of recurring units (R1):less than 90 mol. % are rigid rod-forming arylene units (R1-a), and at least 10 mol. % are kink-forming arylene units (R1-b), and from 5 to 95 wt. % of at least one polymer (P2), having a glass transition temperature (Tg) between 140° C. and 265° C., and no melting peak, as measured by differential scanning calorimetry (DSC) according to ASTM D3418.

Abstract: Methods of cross-linking or chain extending a polymeric material including a silane-modified poly(arylene ether) polymer (Si-PAE) in a shaped article include heating the shaped article from a temperature T1 to a temperature T2>T1, while maintaining the temperature at which the shaped article is heated within a specified range based on the increasing Tg of the polymeric material during the heating. Shaped articles cross-linked or chain extended by the methods are also described.

Abstract: A polymer composition includes at least one poly(aryl ether ketone) (PAEK) component and at least one low molecular weight aromatic compound. A polymer metal junction including the polymer composition and a method of making a polymer metal junction are also described.

Abstract: The present invention relates to a membrane for purifying a biological fluid, comprising at least one poly(aryl ether sulfone) (PAES) polymer based on one specific dihydroxy monomer. The present invention also relates to a purification method for a biological fluid comprising at least a filtration step through this membrane, as well as to the polymer solution for preparing such membrane, comprising this PAES.

Abstract: The present invention relates to a process for preparing a polysulfone (PSU) polymer having a low yellowness index (YI). The present disclosure also relates to a PSU obtained from this process, as well as to articles incorporating this PSU.

Abstract: The invention pertains to a purification method for a biological fluid comprising at least a filtration step through a membrane obtained from a sulfone polymer [polymer (PSI)] derived from bio-based feed-stocks. In particular the PSI polymer comprises more than 50% moles recurring units (RPSI) comprising sugar moieties selected from the group consisting of those of formulae (E?-1) to (E?-3): The invention further relates to polymer solutions and polymer membranes comprising at least one polymer (PSI) and that are free from pore-forming agents.

Abstract: The present invention relates to a poly(arylene sulfide) (PAS), comprising recurring units p, q and r according of formula (I) wherein np, nq and nr are respectively the mole % of each recurring units p, q and r; recurring units p, q and r are arranged in blocks, in alternation or randomly; 2?(nq+nr)/(np+nq+nr)?9; nq is ?0% and nr is ?0%; j is zero or an integer varying between 1 and 4; R1 is selected from the group consisting of halogen atoms, C1-C12 alkyl groups, C7-C24 alkylaryl groups, C7-C24 aralkyl groups, C6-C24 arylene groups, C1-C12 alkoxy groups, and C6-C18 aryloxy groups.

Abstract: The invention relates to a side-chain functionalized copolymer (P1) and to the process for preparing the side-chain functionalized copolymer (P1). The present invention also relates to the use of the copolymer (P1) in the preparation of a membrane, a composite material or a coating.

Abstract: The invention pertains to a relates to a copolymer (P1) of poly(aryl ether sulfones) (PAES) and polydimethylsiloxane (PDMS) and to the process for preparing the copolymer (P1) by melt-hydrosilylation.

Abstract: A method for manufacturing a three-dimensional (3D) object with an additive manufacturing system, comprising a step consisting in printing layers of the 3D object from the part material comprising a polymeric component comprising, based on the total weight of the polymeric component: from 5 to 95 wt. % of at least one polymer (P1) comprising at least 50 mol. % of recurring units (R1) consisting of an arylene group comprising at least one benzene ring, each recurring unit (R1) being bound to each other through C—C bonds, wherein the recurring units (R1) are such that, based on the total number of moles of recurring units (R1):less than 90 mol. % are rigid rod-forming arylene units (R1-a), and at least 10 mol. % are kink-forming arylene units (R1-b), and from 5 to 95 wt. % of at least one polymer (P2), having a glass transition temperature (Tg) between 140° C. and 265° C., and no melting peak, as measured by differential scanning calorimetry (DSC) according to ASTM D3418.

Abstract: A polymer composition includes at least one poly(aryl ether ketone) (PAEK) component and at least one low molecular weight aromatic compound. A polymer metal junction including the polymer composition and a method of making a polymer metal junction are also described.

Abstract: A polymer composition includes components selected from: (i) at least one a poly(aryl ether ketone) (PAEK), (ii) a poly(ether sulfone) (PES), (iii) a reactive poly(ether sulfone) (rPES), (iv) a reactive poly(aryl ether ketone) (rPAEK), (v) an acid component, and (vi) at least one alkali metal carbonate. Preferably, the polymer composition is free or substantially free of solvent. A method includes melt mixing the components of the polymer composition.

Abstract: The invention pertains to certain copolymers (PEDEK/PEEK), comprising a majority of “PEDEK”-type recurring units, which, thanks to the predominance of PEDEK-type units, their structural homogeneity and regularity, and absence of chlorinated end groups, possess a suitable molecular structure and crystallization behaviour so as to deliver improved mechanical properties and outstanding chemical resistance, and which are useful in numerous fields of endeavours, including notably in the oil&gas industry, and more specifically for the manufacture of parts used in oil and gas extraction systems.

Abstract: Methods of cross-linking or chain extending a polymeric material including a silane-modified poly(arylene ether) polymer (Si-PAE) in a shaped article include heating the shaped article from a temperature T1 to a temperature T2>T1, while maintaining the temperature at which the shaped article is heated within a specified range based on the increasing Tg of the polymeric material during the heating. Shaped articles cross-linked or chain extended by the methods are also described.

Abstract: A polymer composition includes components selected from: (i) at least one a poly(aryl ether ketone) (PAEK), (ii) a poly(ether sulfone) (PES), (iii) a reactive poly(ether sulfone) (rPES), (iv) a reactive poly(aryl ether ketone) (rPAEK), (v) an acid component, and (vi) at least one alkali metal carbonate. Preferably, the polymer composition is free or substantially free of solvent. A method includes melt mixing the components of the polymer composition.

Abstract: The invention pertains to a polyarylether sulfone polymer [polymer (PAES)] incorporating recurring units derived from well-defined amount of bi- or poly-functional monomers having identical functionalities in each of their reactive groups in a chain of units derived from of a monohalo-monohydroxyl arylsulfone monomer comprising groups of formula (A), free from hydroxyl groups which are bound to a phenyl ring comprising an activating —SO2— group in para-position, while comprising an activated aromatic halogen bound to a phenyl ring comprising an activating —SO2— group in para-position, having improved balance between mechanical properties and viscosity in the molten state, and endowed by lower polydispersity indexes with respect to materials of the prior art, to a method for making the same, to polymer compositions comprising the same, and to shaped articles therefrom.

Abstract: A poly(arylether sulfone) polymer [(t-PAES) polymer, herein after], wherein more than 70% moles of the recurring units are recurring units (Rt) of formula (St): -E-Ar1—S02-[Ar2-(T-Ar3)n—SO2]m-Ar4— (formula St) wherein: n and m, equal to or different from each other, are independently zero or an integer of 1 to 5, 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; -E is of formula (Et), wherein 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, and said (t-PAES) polymer having a number average molecular weight (Mn) ranging from 41 000 to

Abstract: A fastener comprising a polymer composition [composition (C)] comprising at least one polyaryletherketone polymer [(PAEK) polymer], and at least one nitride (NI) of an element having an electronegativity (?) of from 1.3 to 2.5, as listed in <<Handbook of Chemistry and Physics>>, CRC Press, 64th edition, pages B-65 to B-158, based on the total weight of the composition (C).

Abstract: A mobile electronic device comprising at least one part made of a polymer composition [composition (C), herein after] comprising at least one part made of a polymer composition [composition (C), herein after] comprising from at least one polyaryletherketone polymer [(PAEK) polymer], and at least one nitride (NI) of an element having an electronegativity (?) of from 1.3 to 2.5, as defined in <<Handbook of Chemistry and Physics>>, CRC Press, 64th edition, pages B-65 to B-158, based on the total weight of the composition (C).