Abstract: The invention relates to a thermoplastic polymer composition, in particular to a polyamide composition, having improved flame-retardant properties by maintaining its good physical properties. Furthermore, the invention relates to a method of preparing said thermoplastic polymer composition and to shaped articles, in particular fibers, made of the thermoplastic polymer composition of the invention and that have excellent properties in order to ensure adequate fire protection.

Abstract: The invention relates to a phosphorous containing monomer and a process thereof. Furthermore, the invention relates to a phosphorous containing polymer comprising said monomer and a production process thereof. The phosphorous containing polymer of the invention is useful as flame-retardant polymer. Additionally, the invention relates to a thermoplastic polymer composition comprising said phosphorous containing polymer and optionally a further thermoplastic polymer. The thermoplastic polymer composition can be used for the production of molded articles or yarns having excellent flame-retardant properties in order to ensure adequate fire protection.

Abstract: Disclosed herein are polyamide compositions having decreased release of substances in warm water and increased resistance to oxidizing agents and which therefore are suitable for warm water applications, in particular for warm drinking water applications.

Abstract: Described herein is a polyamide composition [composition (C)] including: from 0 to 30% wt of at least one polyamide [polyamide (A)]; and from above 30 to 99.99% wt of at least one branched polyamide different from polyamide (A).

Abstract: The invention relates to a polymer which is useful as flame-retardant polymer. The invention also relates to a method of preparing said polymer and to a thermoplastic polymer composition comprising said polymer. The thermoplastic polymer composition can be used for the production of molded articles having excellent flame-retardant properties in order to ensure adequate fire protection.

Abstract: The invention relates to a polymer which is useful as flame-retardant polymer. The invention also relates to a method of preparing said polymer and to a thermoplastic polymer composition comprising said polymer. The thermoplastic polymer composition can be used for the production of molded articles or yarns having excellent flame-retardant properties in order to ensure adequate fire protection.

Abstract: An article may include a polyamide composition comprising at least one modified polyamide produced by polymerizing polyamide precursors in a polymerization reactor to form a polyamide and adding, before, during, or at the end of polymerization, a polyhydric alcohol comprising at least three hydroxyl groups to the precursors and/or polyamide in the polymerization reactor.

Abstract: The present invention relates to the use of a polyhydric alcohol in a polyamide polymerization process for giving the modified polyamide obtained increased stability toward heat, light and/or bad weather. The invention also relates to a polyamide modified in this way, and also to polyamide compositions that may be used for the preparation of specific articles liable to be subjected to high temperatures.

Abstract: The invention pertains to a filled polyamide composition [composition (C)] comprising: —from 35 to 80% wt of at least one polyhydric alcohol-modified polyamide, comprising an amount of polyhydric alcohol (PHA, herein after) residues chemically bonded at least to a part of the polyamide [polyamide (A)] of at least 0.1% wt (based on the total weight of polyamide (A)); —from 10 to 65% wt of at least one filler [filler (F)]; —from 1 to 10% wt of at least one impact modifying rubber [rubber (I)]; and —from 0.01 to 3% wt of at least one copper-containing stabilizer, with above % wt being referred to the total weight of composition (C).

Abstract: The invention pertains to filled polyamide compositions [composition (C)] comprising: —at least one polyhydric alcohol-modified polyamide, comprising an amount of polyhydric alcohol (PHA, herein after) residues chemically bonded at least to a part of the polyamide [polyamide (A)] of at least 0.1% wt (based on the total weight of polyamide (A)); —at least one filler [filler (F)]; and—at least one polyamide, different from polyamide (A), more than 50% moles of recurring units thereof being of formula —HN—(CH2)5—CO— [polyamide (PA6)], in an amount of 5 to 50% wt, based on the combined weight of polyamide (A) and polyamide (PA6).

Abstract: The invention pertains to A polyannide composition [composition (C)] comprising: —from 20 to 95% wt of at least one polyamide [polyamide (A)]; —from 1 to 30% wt of at least one branched polyamide different from polyamide (A), said branched polyamide comprising recurring units derived from polycondensation of a mixture [mixture (B)] comprising: —at least one polyamine monomer comprising at least three amine functional groups selected from the group consisting of secondary amine group of formula —NH— and primary amine group of formula -MH2 [monomer (FN)], and—?-caprolactam (or derivates thereof); said branched polyamide possessing a concentration of amine end groups (AEG) and a concentration of carboxylic end groups (CEG) such that the difference AEG?CEG is of at least 100 meq/kg [polyamide (B)]; and—from 0.01 to 3.

Abstract: The present invention concerns the use of a novel additive as an agent for inhibiting the swelling of clays, in particular in the field of boreholes. More specifically, the present invention concerns the use of a specific diamine and diacid salt as an agent for inhibiting the swelling of clays in an aqueous medium, and a drilling or hydraulic fracturing fluid composition comprising the salt according to the invention and methods for drilling or hydraulic fracturing implementing said salt.

Abstract: The invention pertains to A polyannide composition [composition (C)] comprising: —from 20 to 95% wt of at least one polyamide [polyamide (A)]; —from 1 to 30% wt of at least one branched polyamide different from polyamide (A), said branched polyamide comprising recurring units derived from polycondensation of a mixture [mixture (B)] comprising: —at least one polyamine monomer comprising at least three amine functional groups selected from the group consisting of secondary amine group of formula —NH— and primary amine group of formula -MH2 [monomer (FN)], and —?-caprolactam (or derivates thereof); said branched polyamide possessing a concentration of amine end groups (AEG) and a concentration of carboxylic end groups (CEG) such that the difference AEG?CEG is of at least 100 meq/kg [polyamide (B)]; and —from 0.01 to 3.

Abstract: The invention pertains to a filled polyamide composition [composition (C)] comprising:—from 35 to 80% wt of at least one polyhydric alcohol-modified polyamide, comprising an amount of polyhydric alcohol (PHA, herein after) residues chemically bonded at least to a part of the polyamide [polyamide (A)] of at least 0.1% wt (based on the total weight of polyamide (A));—from 10 to 65% wt of at least one filler [filler (F)];—from 1 to 10% wt of at least one impact modifying rubber [rubber (I)]; and—from 0.01 to 3% wt of at least one copper-containing stabilizer, with above % wt being referred to the total weight of composition (C).

Abstract: The invention pertains to filled polyamide compositions [composition (C)] comprising: —at least one polyhydric alcohol-modified polyamide, comprising an amount of polyhydric alcohol (PHA, herein after) residues chemically bonded at least to a part of the polyamide [polyamide (A)] of at least 0.1% wt (based on the total weight of polyamide (A)); —at least one filler [filler (F)]; and —at least one polyamide, different from polyamide (A), more than 50% moles of recurring units thereof being of formula —HN—(CH2)5—CO— [polyamide (PA6)], in an amount of 5 to 50% wt, based on the combined weight of polyamide (A) and polyamide (PA6).

Abstract: The invention relates to a polyamide that is stabilized toward heat, light and/or bad weather by using a compound comprising at least one amine function and at least two aliphatic hydroxyl functions. The stabilizing compound may also be added to the polyamide to form stabilized polyamide compositions.

Abstract: The use of an additive as a clay-swelling inhibitor, especially in the field of drilling is described. More specifically, the use of 2-methylpentane-1,5-diamine or an organic or inorganic salt of 2-methylpentane-1,5-diamine as an inhibitor of the swelling of clays in an aqueous medium is described. Also described is a drilling fluid composition or hydraulic fracturing fluid composition including 2-methylpentane-1,5-diamine or an organic or inorganic salt thereof and drilling or hydraulic fracturing processes using the compositions.

Abstract: A polyamide composition is described that is stabilized with respect to heat. The composition can have a polyhydric alcohol-based stabilization system that is excellent in maintaining mechanical properties after exposure to heat. Also described, is a process for producing these compositions, and the use of these compositions for making various articles.

Abstract: Supramolecular polymers having repeat units connected by hydrogen bonds, where the repeat units are monomers, macromers, oligomers or polymers where at least one on the monomers contains at least one 2,5-diketopiperazine group are described. Composition prepared from these supramolecular polymers and articles produced from these compositions are also described.

Abstract: The present invention concerns the use of a novel additive as an agent for inhibiting the swelling of clays, in particular in the field of boreholes. More specifically, the present invention concerns the use of a specific diamine and diacid salt as an agent for inhibiting the swelling of clays in an aqueous medium, and a drilling or hydraulic fracturing fluid composition comprising the salt according to the invention and methods for drilling or hydraulic fracturing implementing said salt.