Arkema Inc.

Arkema France

Atofina Chemicals, Inc.

Christopher A Bertelo

Gregory Scott O'Brien

Anthony DeCarmine

Manuel A Garcia-Leiner

Brett L Van Horn

Scott F Defelice

Scott Charles Schmidt

Noah Eliot Macy

George J Papakonstantopoulos

Jean-Pierre Lallier

Scott DeFelice

Scott R Gaboury

Gary Stephen Silverman

B Peter McGrail

Radha Kishan Motkuri

Praveen K Thallapally

Ronald H Partridge

Jeromy J Jenks

Gregory S O'brien

Gilbert W Rudman

Steve M Galaton

Steven M Galaton

Anthony Decarmine

The invention relates to heat treatment of polymorphic semicrystalline or crystallizable polymers to increase the content of the highest melting crystalline form. Such heat treatment results in a polymer powder that has a consistent, uniform melting range, improved flow and improved durability of the powder particle size for applications that require powder flow at elevated temperatures. In addition to improved powder properties, the articles produced from the powders also exhibit better physical properties in both appearance and in mechanical properties. Thus the invention also includes polymer powders and articles produced by the described processes.

Heat treated polymer powders

Fibers sized with a coating of amorphous polyetherketoneketone are useful in the preparation of reinforced polymers having improved properties, wherein the amorphous polyetherketoneketone can improve the compatibility of the fibers with the polymeric matrix.

Fibers sized with polyetherketoneketones

Tie layers comprised of amorphous polyetherketoneketone are used to join substrates to form laminates and other assemblies.

Assemblies containing polyetherketoneketone tie layers

The present invention relates to sorbants such as metal-organic frameworks (MOFs), covalent organic frameworks (COFs), porous aromatic frameworks (PAFs) or porous polymer networks (PPNs) for separations of gases or liquids, gas storage, cooling, and heating applications, including, but not limited to, adsorption chillers.

Adsorption systems using metal-organic frameworks

Fluorinated olefins are produced in a reductive coupling reaction by contacting a first reactant with a second reactant in the gas phase under an inert atmosphere at a temperature of at least 500 C. The first reactant may be, for example, a hydrofluorocarbon containing one or two carbon atoms, while the second reactant may be, for example, a two to four carbon hydrohalocarbon (e.g., a hydrofluorocarbon) or hydrocarbon.

Method for producing fluorinated olefins

A nanodiamond coating for use on a solar cell, the coating including a nanodiamond material suspended in a liquid, wherein the nanodiamond material has a size range from about 1 nm to about 10 nm. Methods for improving the efficiency of a solar cell are provided, including, mixing a nanodiamond material with a liquid polymer or non-polymer solvent to form a nanodiamond-polymer suspension, forming a coating of the suspension on a top surface of a solar cell, and drying the coating such that a dried nanodiamond-polymer layer remains bonded to the solar cell. Useful nanodiamond coating compositions may include a nanodiamond material, a fluoropolymer, a liquid solvent for the fluoro-polymer and at least one additive selected from the group consisting of dispersing agents, adhesion promoters, and coupling agents. The fluoropolymer may also be used in the form of an aqueous dispersion.

Nanodiamond coatings for solar cells

Heat-resistant, high strength fibers useful in a wide range of end-use applications are prepared using a polymeric composition containing polyetherketoneketone and mineral nanotubes.

High performance fibers

Fibers sized with polyethereketoneketones

The invention provides nonwoven mats comprising polyetherketoneketone fibers or mixtures thereof. Also provided are filters, textiles, blankets, and insulation prepared from polyetherketoneketone nonwoven mats, as well as methods for manufacturing the same.

Polyetherketoneketone nonwoven mats

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Doylestown, PA, United States of America

Christopher A Bertelo