E.i. Dupont De Nemours and Company

The Chemours Company Fc, LLC

Dupont Polymers, Inc.

The Chemours Company Tt, LLC

Kai Qi

Marc Bruce Goldfinger

Lee A Silverman

Jose Manuel Rodriguez-Parada

Hari Babu Sunkara

Anilkumar Raghavanpillai

Brad Matthew Rosen

John Russell Crompton, Jr

James J Hughes

Richard Allen Hayes

Jerrel Charles Anderson

Michael Henry Ober

Vincent Franco

Hau-Nan Lee

Timothy Pellenbarg

James J Hugues

John Russell Crompton Jr

The disclosure generally relates to filaments and in particular, filaments for use in fused filament fabrication to prepare 3D printed articles. The filaments may be prepared from a polymer composition comprising: A) 55 to 95 weight percent semi-aromatic copolyamide having a melting point; and B) 5 to 45 weight percent amorphous copolyamide having a melting point.

Filament compositions for fused filament fabrication and methods of use thereof

The present invention comprises a composition and method of use for providing durable dirt pickup resistance to architectural coatings. Such compositions comprise a coating base and a post-modified crosslinkable fluoropolymer additive, such that the coatings additive is allowed to migrate to the coating surface and further cure once applied to a substrate. The compositions of the present invention provide durability to coating compositions, while also providing surface effects such as increased water and oil contact angles, enhanced dirt pickup resistance, and enhanced cleanability to the coating films.

Durable architectural coatings containing crosslinkable polymeric additives

The present invention comprises a composition and method of use for providing cleanability to paint comprising an aqueous emulsion of Formula (I) wherein the composition of Formula (I) is a random copolymer; wherein said composition of formula (I) further comprises residue from a hydrophilic chain transfer agent. The compositions of the present invention provide durability to coating compositions, while also providing surface effects such as increased water and oil contact angles, enhanced dirt pickup resistance, and enhanced cleanability to the coating films. For these reasons, the composition of the present invention is particularly suitable for use as additives to exterior coatings and paints.

Fluorinated polymer additives derived using hydrophilic chain transfer agents for architectural coatings

Isomannide-based compounds having chiral properties are provided, in addition to liquid crystal compositions and polymer networks derived therefrom.

Chiral compounds, liquid crystal compositions and polymer networks derived therefrom

The invention relates to compounds of formula (I): wherein Rand Rare each independently selected from the group: H, F, Cl and CH; n1 and n2 are each independently integers 3 to 20; q and r are each independently integers 0, 1 or 2, with the proviso that q+r is &#x2267;1; D is a divalent chiral radical selected from the group: wherein Ris a C1 to C6 straight or branched chain alkyl group; and each Band Bis a divalent radical independently selected from the group: R-substituted-1,4-phenyl, wherein Ris H, &#x2014;CHor &#x2014;OCH; 2,6-naphthyl; and 4,4'-biphenyl; with the provisos that when q+r=3, at least one of Band Bis R-substituted-1,4-phenyl; and when q+r=4, at least two of Band Bare R-substituted-1,4-phenyl. The invention further relates to liquid crystal compositions comprising compounds of formula (I) and polymer networks derived from the polymerization of the liquid crystal compositions.

Chiral compounds and liquid crystal compositions and polymer networks derived therefrom

Disclosed is the chemical synthesis of chiral alkaloid monomers, liquid crystal compositions comprising the chiral alkaloid monomers, and polymerization of the liquid crystal compositions to provide polymer networks with useful cholesteric optical properties and stability.

Alkaloid monomers, liquid crystal compositions and polymer networks derived therefrom

Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet. The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain one or more of the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.

Multilayer laminates comprising chiral nematic liquid crystals

The present invention relates to linear amine-functionalized poly(trimethylene ether) compositions, and processes to produce these compositions.

Linear amine functionalized poly(trimethylene ether) compositions

Liquid crystal compositions and polymer networks derived therefrom

The invention relates to compounds of Formula (I): The invention further relates to liquid crystal compositions comprising compounds of Formula (I); compositions further comprising one or more chiral compounds; and polymer networks derived from the polymerization of the liquid crystal compositions. Another embodiment relates to processes for providing compounds of Formula (I).

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Wilmington, DE, United States of America

Kai Qi