Abstract: Described herein are polyamides (PA) formed from a reaction mixture (RM) including a diamine component (DA) and a dicarboxylic acid component (DC). The diamine component (DA) includes at least 99 mol % of 1.3-bis (aminomethyl) cyclohexane (“1,3-BAC”) and the dicarboxyic acid component (DC) includes at least 90 mol % of terephthalic acid (“TA”). It was surprisingly found that the polyamides (PA) had and increased glass transition temperature (“Tg”), while maintaining high melting temperatures (“Tm”) and high crystallinity. More particularly, in some embodiments, the polyamides (PA) have a Tg of at least 165° C. a Tm of at least 280° C. and a heat of fusion (“?Hf”) of at least 20 J/g.

Abstract: An additive manufacturing filament is provided, as are 3D manufacturing methods using the filament, and articles and composite materials made therefrom. The filament comprises a polymer composition, and the polymer composition comprises, in turn, at least 50 wt. % of a polyamide.

Abstract: Described herein are amorphous and transparent aliphatic polyamides (PA) formed from the polycondensation of monomers in a reaction mixture (RM) including a dicarboxylic acid component (DC) and a diamine component (DA). The dicarboxylic acid component (DC) includes 25 mol % to 80 mol % of 1,4-cyclohexane dicarboxylic acid (“1,4-CHDA”) and 20 mol % to 75 mol % of a linear, aliphatic dicarboxylic acid selected from azelaic acid, sebacic acid or a combination thereof. The diamine component (DA) includes a cycloaliphatic diamine selected from the group consisting of isophoronediamine (“IPDA”); 4,4?-methyl-enebis(2-methylcyclohexylamine) (“MACM”); 4,4?-methylene-bis-cyclohexane (“PACM”); 1,3-bis(aminomethyl)cyclohexane (“1,3-BAC”), bis(aminomethyl)norborane (“BAMN”) and any combination of two or more thereof.

Abstract: Described herein are thermoplastic composites including a polymer matrix, having a at least one semi-crystalline polyphthalamide (“PPA”) polymer, and at least one continuous reinforcing fiber. It was surprisingly discovered that incorporation of semi-crystalline PPA polymers, having a selected melt profile, into the polymer matrix provided for crack-free thermoplastic composites. Based at least in part on the semi-crystalline structure of PPA polymers, the thermoplastic composite can have improved tensile strength, chemical resistance and thermal stability, relative to composites incorporating an amorphous PPA polymer. The composites can be formed using melt impregnation techniques, well known in the art. The composites can be desirably used in a wide range of application settings including, but not limited to automotive, aerospace, automotive and oil and gas and mobile electronic device applications.

Abstract: The present invention relates to a process for preparing fine particles of an aromatic copolyester, the process comprising the melt-blending of the aromatic copolyester with a polyester polymer (PE), the cooling the blend and the recovery of the particles by dissolution of the PE into water. The present invention also relates to aromatic copolyester particles obtained therefrom and to the use of these particles in to make coatings or films.

Abstract: Described herein are polymer compositions (PC) including a polyamide (PA) and a poly(arylene sulfide) (PASP). The polyamide (PA) is a semi-aromatic polyamide derived from the polycondensation of an aliphatic diamine, a bis(aminoalkyl)cyclohexane, terephthalic acid, and, optionally, a cyclohexanedicarboxylic acid. It was surprisingly discovered that semi-aromatic polyamides derived from the cycloaliphatic diamine bis(aminoalkyl)cyclohexane or the specific combination of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane and the cycloaliphatic dicarboxylic acid cyclohexanedicarboxylic acid provided for polymer compositions (PC) having improved retention of mechanical properties (e.g. tensile modulus and tensile strength) after aging in aqueous polyol solutions. It was also surprisingly discovered that incorporation of a nucleating agent in the polymer composition (PC) provided for significantly improved tensile strength retention after aging.

Abstract: Described herein are polymer compositions (PC) including a polyamide (PA) and a reactive impact modifier. As explained in detail below, the polyamide (PA) is a semi-aromatic polyamide derived from the polycondensation of an aliphatic diamine, a bis(aminoalkyl)cyclohexane, terephthalic acid, and, optionally, a cyclohexanedicarboxylic acid. It was surprisingly discovered that semi-aromatic polyamides derived from the cycloaliphatic diamine bis(aminoalkyl)cyclohexane or the specific combination of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane and the cycloaliphatic dicarboxylic acid cyclohexanedicarboxylic acid provided for polymer compositions (PC) having improved retention of mechanical properties (e.g. tensile strength and flexural strength) after aging in aqueous solutions, relative to analogous polyamides free of the bis(aminoalkyl)cyclohexane and the cyclohexanedicarboxylic acid.

Abstract: The invention pertains to a polyamide-imide (PAI) polymer comprising recurring units according to any of formulae (I) and (II) wherein: Z is a cycloaliphatic moiety selected from the group consisting of substituted or unsubstituted, monocyclic or polycyclic groups having 5 to 50 carbon atoms, preferably 6 to 18 carbon atoms; R is a divalent cycloaliphatic moiety selected from the group consisting of substituted or unsubstituted, monocyclic or polycyclic groups having 5 to 50 carbon atoms, preferably 6 to 20 carbon atoms; m and n are, independently from each other, integers from 0 to 10.

Abstract: A process for preparing a polyamide-imide (PAI) polymer is provided. The process comprises the melt polymerization of a reaction mixture comprising at least one cycloaliphatic acid component comprising three carboxyl moieties, the carboxyl moieties selected from the group consisting of carboxylic acid, acid anhydride and ester functional groups, and at least one diamine component. The process comprises maintaining the reaction mixture in a liquid state and at a temperature of at least 200° C. during polymerization.

Abstract: Described herein are polyamides (PA) incorporating a cycloaliphatic monomer containing a cyclohexyl group. It was surprisingly discovered that by incorporating the cycloaliphatic monomer containing a cyclohexyl group, the resulting polyamides (PA) had significantly reduced water absorption and significantly increased Tg, while maintaining high Tm, Tc and good mechanical properties, relative to analogous polyamides free of the cycloaliphatic monomer and PA6,T based polyamides copolymerized with either or both of isophthalic acid and adipic acid.

Abstract: The present invention relates to copolyamides comprising 4-(aminomethyl)benzoic acid (4-AMBa). The present invention also relates to polymer compositions comprising such copolyamides, as well as articles comprising the same and methods of using said articles to prepare windows, clear containers for cosmetic products packaging or glass frames & lenses. The present invention also relates to the use of the copolyamide, as such or in a composition of matter, for the manufacture of three-dimensional objects using an additive manufacturing system, for example an extrusion-based manufacturing system.

Abstract: Described herein are polyamides (PA) derived from the polycondensation of monomers in a reaction mixture comprising: (1) a diamine component (A) comprising 20 mol % to 95 mol % of a C4 to C12 aliphatic diamine, and 5 mol % to 80 mol % of a bis(aminoalkyl)cyclohexane, where mol % is relative to the total number of moles of all diamine monomers in the diamine component; and a dicarboxylic acid component (B) comprising: 30 mol % to 99 mol % of terephthalic acid and 1 mol % to 70 mol % of a cyclohexane dicarboxylic acid, wherein mol % is relative to the total number of moles of all dicarboxylic acid monomers in the dicarboxylic acid component. It was surprisingly discovered that, with the particular combination of the bis(aminoalkyl)cyclohexane and the cyclohexanedicarboxylic acid, the polyamides (PA) had, on the whole, improved thermal performance relative to analogous polyamides, in which the cyclohexanedicarboxylic acid is replaced with an aromatic dicarboxylic acid.

Abstract: The present invention relates to a polyamide (PA) comprising recurring units X, Y, and Z and is represented by the following formula (1): wherein—nx, ny and nz are respectively the mole percent (mol. %) of each recurring units X, Y and Z; —10 mol %?nx?90 mol %; —0 mol %?ny?90 mol %; —0 mol %?nz?90 mol %; —nx+ny+nz?100 mol. %; and —at least one of ny and nz is greater than 0 mol. %, and wherein—R1 is selected from the group consisting of a hydrogen, an alkyl, or an aryl—R?i, at each location, is independently selected from the group consisting of an alkyl, an aryl, an alkali or alkaline earth metal sulfonate, an alkyl sulfonate, and a quaternary ammonium; —i is an integer from 0 to 10; —R2 is selected from the group consisting of a bond, a C1-C15 alkyl and a C6-C30 aryl, optionally comprising one or more heteroatoms (e.g.

Abstract: The present invention relates to an article or component comprising a polyamide (PA) comprising recurring units (RPA) according to formula (I): Wherein n equals 16, and R1 is p-xylylene (PX).

Abstract: The present invention relates to polyamides (PA) comprising recurring units (RPA) according to formula (I) or formula (II): wherein n equals 16; m equals 18; R1 is 1,4-bis(methyl)cyclohexane; and R2 is 1,4-bis(methyl)cyclohexane. The present invention also relates to polymer compositions (C) comprising such polyamides, and to articles, for example mobile electronic device articles and components, incorporating the polyamides (PA) or compositions (C).

Abstract: Described herein are thermoplastic composites including a polymer matrix, having a at least one semi-crystalline polyphthalamide (“PPA”) polymer, and at least one continuous reinforcing fiber. It was surprisingly discovered that incorporation of semi-crystalline PPA polymers, having a selected melt profile, into the polymer matrix provided for crack-free thermoplastic composites. Based at least in part on the semi-crystalline structure of PPA polymers, the thermoplastic composite can have improved tensile strength, chemical resistance and thermal stability, relative to composites incorporating an amorphous PPA polymer. The composites can be formed using melt impregnation techniques, well known in the art. The composites can be desirably used in a wide range of application settings including, but not limited to automotive, aerospace, automotive and oil and gas and mobile electronic device applications.

Abstract: Polyamides are made from the polycondensation of monomers including from 15 to 80 mol % of 2,5-furandicarboxylic acid (FDCA), from 20 to 85 mol % of at least one aromatic dicarboxylic acid and from 50 to 100 mol % of at least one aliphatic diamine selected from those including 6 and 7 carbon atoms. A process allowing the synthesis of high molecular weight polyamides made from the above mentioned monomers is also described. Finally, compositions and articles including the same polyamides are also disclosed.

Abstract: A furan-based polyamide is prepared by the following steps: (1) preparing a furan-based oligomer of formula (1) H2N—R—(NH—CO—F—CO—NH—R)n—NH2 (1) where R is a hydrocarbon moiety and F is a furan (cyclo-C4H2O) moiety and n represents the average degree of oligomerization, and where n is within the range of 1 to 10 by reacting 2,5-furandicarboxylic acid or its derivative with a diamine at a temperature of at most 100° C.; (2) contacting the oligomer of step (1) with a bifunctional linker selected from an acid or a derivative thereof where the acid is furandicarboxylic acid or a non-aromatic dicarboxylic acid; provided that if the hydrocarbon moiety R is aromatic, then the bifunctional linker is an aromatic dicarboxylic acid or a derivative thereof, at a mole ratio of the oligomer to the difunctional linker within the range of 0.8 to 1.5 at polycondensation conditions, and (3) isolating the resulting polyamide.

Abstract: Polyamides are made from the polycondensation of monomers including from 15 to 80 mol % of 2,5-furandicarboxylic acid (FDCA), from 20 to 85 mol % of at least one aromatic dicarboxylic acid and from 50 to 100 mol % of at least one aliphatic diamine selected from those including 6 and 7 carbon atoms. A process allowing the synthesis of high molecular weight polyamides made from the above mentioned monomers is also described. Finally, compositions and articles including the same polyamides are also disclosed.

Abstract: A furan-based polyamide is prepared by the following steps: (1) preparing a furan-based oligomer of formula (1) H2N—R—(NH—CO—F—CO—NH—R)n—NH2 (1) where R is a hydrocarbon moiety and F is a furan (cyclo-C4H2O) moiety and n represents the average degree of oligomerization, and where n is within the range of 1 to 10 by reacting 2,5-furandicarboxylic acid or its derivative with a diamine at a temperature of at most 100° C.; (2) contacting the oligomer of step (1) with a bifunctional linker selected from an acid or a derivative thereof where the acid is furandicarboxylic acid or a non-aromatic dicarboxylic acid; provided that if the hydrocarbon moiety R is aromatic, then the bifunctional linker is an aromatic dicarboxylic acid or a derivative thereof, at a mole ratio of the oligomer to the difunctional linker within the range of 0.8 to 1.5 at polycondensation conditions, and (3) isolating the resulting polyamide.