Abstract: The present invention relates to functionalized poly(aryl ether sulfones) polymers. The invention further relates to polymer compositions including the functionalized poly(aryl ether sulfone) polymers. Still further, the invention relates to lithographic methods to form three-dimensional (3D) objects that incorporate the aforementioned polymer compositions.

Abstract: The present invention relates to relates to a polymer formulation for three-dimensionally (3D) printing an article by stereolithography, the formulation comprising a functionalized polymer. The invention further relates to lithographic methods to form 3D objects that incorporate the aforementioned polymer formulation.

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 piperidine-based stabilizer compound of formula (I) or (II) that imparts UV, thermal, and/or thermo-oxidative stability to polymer compositions and more specifically to aromatic polymers and polymer compositions thereof.

Abstract: The invention relates to piperidine-based compounds of formula (I) that are used to improve UV, thermal, and thermo-oxidative stability of high performance aromatic polymers in a blend or as end-cappers of the same polymers.

Abstract: Described herein are end-capped poly(aryl ether sulfone) (“PAES”) polymers and corresponding synthesis methods. The end-capped PAES polymers are end-capped by functionalizing a PAES polymer with a halophthalic diialkyl ester end-capping agent. It was surprisingly discovered that the resulting dialkyl phthalate end-capped PAES polymers could be synthesized with significantly improved end-capping conversion rates, relative to end-capped PAES polymers directly functionalized with traditional phthalic anhydride end-capping agents. It was also surprisingly found that by heating the isopropyl phthalate end-capped PAES polymers, the polymers could be converted to the corresponding phthalic anhydride end-capped PAES polymers, yielding a more efficient synthetic route to phthalic anhydride end-capped PAES polymers.

Abstract: The invention relates to hydroxybenzophenone-based compounds of formula (I) that are used to improve UV, thermal, and thermo-oxidative stability of high performance aromatic polymers in a blend or as end-cappers of the same polymers.

Abstract: The present invention relates to functionalized poly(aryl ether sulfones) (PAES) polymers (P1) and to the process for preparing the PAES polymers (P1). The present invention also relates to a method for preparing block copolymers (P2) using the functionalized poly(aryl ether sulfones) (PAES) polymers (P1) and to the block copolymers (P2) themselves.

Abstract: A piperidine-based stabilizer compound of formula (I) or (II) that imparts UV, thermal, and/or thermo-oxidative stability to polymer compositions and more specifically to aromatic polymers and polymer compositions thereof.

Abstract: The invention relates to piperidine-based compounds of formula (I) that are used to improve UV, thermal, and thermo-oxidative stability of high performance aromatic polymers in a blend or as end-cappers of the same polymers.

Abstract: The present invention relates to polymers and blends of polymers comprising anthracene moieties able to undergo a cycloaddition reaction under certain stimuli, thereby forming polymer adducts endowed with improved or additional properties with respect to those of the starting polymers.

Abstract: The present invention relates to a process for treating the surface of a polymer article with a UV-stabilizer solution which comprises an effective amount of a UV-absorber compound dissolved in a solvent, and optionally a radical scavenger. The present invention also relates to a process for preparing a UV-stabilized polymer article which comprises a step consisting in contacting the surface layer of a polymer article with the UV stabilizer solution. The present invention also provides UV-stabilized polymer articles, that-is-to-say polymer articles which are resistant to color change upon exposure to UV light.

Abstract: The invention relates to hydroxybenzophenone-based compounds of formula (I) that are used to improve UV, thermal, and thermo-oxidative stability of high performance aromatic polymers in a blend or as end-cappers of the same polymers.

Abstract: The invention relates to hydroxybenzophenone-based compounds of formula (I) that are used to improve UV, thermal, and thereto-oxidative stability of high performance aromatic polymers in a blend or as end-cappers of the same polymers.

Abstract: The present invention relates to functionalized poly(aryl ether sulfones) polymers. The invention further relates to polymer compositions including the functionalized poly(aryl ether sulfone) polymers. Still further, the invention relates to lithographic methods to form three-dimensional (3D) objects that incorporate the aforementioned polymer compositions.

Abstract: The invention relates to hydroxybenzophenone-based compounds of formula (I) that are used to improve UV, thermal, and thereto-oxidative stability of high performance aromatic polymers in a blend or as end-cappers of the same polymers.

Abstract: The invention relates to piperidine-based compounds of formula (I) that are used to improve UV, thermal, and thermo-oxidative stability of high performance aromatic polymers in a blend or as end-cappers of the same polymers.

Abstract: A piperidine-based stabilizer compound of formula (I) or (II) that imparts UV, thermal, and/or thermo-oxidative stability to polymer compositions and more specifically to aromatic polymers and polymer compositions thereof.

Abstract: A poly(arylethersulfone) polymer comprising recurring units derived from at least one aromatic dihalocompound comprising at least one —S(?O)2— group and at least one diol (D) comprising at least one cycloaliphatic moiety (M).