Solvay Specialty Polymers Usa, LLC

Virginia Tech Intellectual Properties, Inc.

Solvay Specialty Polymers Italy S.p.a.

David Blake Roller

Mohammad Jamal El-Hibri

Stéphane Jeol

Marco Apostolo

Narmandakh Taylor

Emanuele Di Nicolo'

Pasquale Campanelli

Nirupama Kenkare

DeeDee Smith

Xijing Yuan

Robert B Moore

Lindsey Anderson

Samantha Talley

The invention relates to a process for preparing particles of polyphenylene sulfide polymer (PPS), based on the use of a polyester polymer (PE) comprising units from a dicarboxylic acid component and a diol component, wherein at least 2 mol. % of the diol component is a poly(alkylene glycol). The process comprises the melt-blending of the PPS with the PE, the cooling the blend and the recovery of the particles by dissolution of the PE into water. The present invention relates to PPS particles obtained therefrom and to the use of these particles in SLS 3D printing, coatings and toughening of thermoset resins.

Process for preparing particles of polyphenylene sulfide polymer

A process for preparing particles of polyphenylene sulfide polymer (PPS), based on the use of a polyester polymer (PE) comprising units from a dicarboxylic acid component and a diol component, wherein at least 2 mol. % of the diol component is a poly(alkylene glycol). The process comprises the melt-blending of the PPS with the PE, the cooling the blend and the recovery of the particles by dissolution of the PE into water. The present invention relates to PPS particles obtained therefrom and to the use of these particles in SLS 3D printing, coatings and toughening of thermoset resins.

Described here are blocky PEEK copolymers and corresponding synthesis methods. It was surprisingly found that synthesis of blocky PEEK copolymers in a non-solvent environment with respect to PEEK produced blocky PEEK copolymers with high degrees of functionalization and crystallinity. The blocky PEEK copolymers had an increased blocky structure, relative to corresponding PEEK copolymer synthesized with other known methods. Moreover, membranes formed from the blocky PEEK polymers are particularly desirable in fuel cell applications. For example, the membranes formed from the blocky PEEK polymers had surprisingly large ion conductivities as well as significantly improved chemical and thermal resistance, at least in part, to the improved functionalization and crystallinity.

Blocky poly(ether ether ketone) copolymers and corresponding synthesis methods and articles

The invention relates to a process for preparing polymeric particles, based on the use of a polyester polymer (PE) comprising units from a dicarboxylic acid component and a diol component, wherein at least 2 mol. % of the diol component is a poly(alkylene glycol). The process comprises the melt-blending of the aromatic polymer (P) with the PE, the cooling the blend and the recovery of the particles by dissolution of the PE into water. The present invention relates to polymeric particles obtained therefrom and to the use of these particles in SLS 3D printing, coatings and toughening of thermoset resins.

Process for preparing particles of aromatic polymers, particles obtainable by said process and their uses

A poly(ether ketone) polymer comprising recurring units derived from the reaction of at least one aromatic dihalo-compound comprising at least one &#x2014;C(O)&#x2014; group and at least one diol having a general formula HO-D-OH wherein Dis an aliphatic group comprising from 4 to 20 carbon atoms which comprises at least one cycloaliphatic moiety.

Poly(ether ketone) polymers comprising cycloaliphatic units

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Norcross, GA, United States of America

David Blake Roller