The present invention relates to a process for producing hydrosilylatable, eugenol-based polyethers, to the conversion thereof into polyether siloxanes and also to the products that may be produced by this process and to the use of said products as surfactants.

The present invention relates to a process for producing hydrosilylatable, eugenol-based polyethers, to the conversion thereof into polyether siloxanes and also to the products that may be produced by this process and to the use of said products as surfactants.

Provided is a poly(arylene ether ketone) resin which inhibits reactions such as molecular weight extension and crosslinking in a high-temperature molten state and which is excellent in melt viscosity stability and molding processability. The poly(arylene ether ketone) resin contains an alkylsulfonyl group represented by general formula (1). In the formula, R is an alkyl group containing one to four carbon atoms.

A method for the preparation of a poly(ether ether ketone) (PEEK) includes: preparing the PEEK by aromatic nucleophilic substitution in the presence of: a) particulate sodium carbonate (Na.sub.2CO.sub.3), wherein said particulate sodium carbonate has a particle size distribution as follows: D.sub.9045 m and D.sub.90250 m and D.sub.99.5710 m, wherein said particle size distribution is measured by mechanical sieving in accordance with ASTM E 359-00 (reapproved 2005), wherein said measurement is based on the mechanical separation of various fractions on a series of superimposed sieves which are superimposed by descending order of opening mesh of 1000 m, 500 m, 250 m, 180 m, 125 m, 90 m, 63 m, and 45 m; and b) potassium carbonate (K.sub.2CO.sub.3) in an amount ranging from 0.001 to about 0.05 mol K/mol Na.

The present invention relates to compositions comprising eugenol polyethers and/or eugenol polyethers modified with siloxanes, and to the use of eugenol polyethers in polyether siloxanes based on these eugenol polyethers as wetting agents.

Disclosed in the present invention are polyetheretherketone and a preparation method therefor. The method of the present invention comprises: introducing argon into a container containing a bisphenol compound to obtain a complex of the bisphenol compound; mixing fluoroketone, alkali carbonate, the complex of the bisphenol compound, and a solvent, and performing temperature programmed treatment on the mixture to generate polyetheretherketone. Therefore, before the polyetheretherketone is prepared, the bisphenol compound is protected by argon and thus can not be oxidized into quinones when reacting with fluoroketone and alkali carbonate, and a whiter polyetheretherketone solid with a higher chromatic value, L* can be obtained.

The invention relates to a side-chain functionalized copolymer (P1) and to the process for preparing the side-chain functionalized copolymer (P1). The present invention also relates to the use of the copolymer (P1) in the preparation of a membrane, a composite material or a coating.

The present invention describes a process for preparing a poly(aryl ether ketone) by reacting a nucleophile with 4,4-difluorobenzophenone (4,4-DFBP) that is improved through the use of 4,4-DFBP that meets one or more particular purity conditions. Also described are improved poly(aryl ether ketone) produced using the invention 4,4-DFBP. Amounts of 2,4-difluorobenzophenone (2,4-DFBP), 4-monofluorobenzophenone (4-FBP), chlorine, and monochloromonofluorobenzophenone in 4,4-DFBP are discussed.

Squaric acid-based polymers and their use in electrode materials and/or electrolyte compositions, as well as their production processes are described herein. Also described are electrode materials, electrodes, electrolyte compositions, electrochemical cells, electrochemical accumulators, and optoelectronic devices comprising the polymers and their uses.

The present invention relates to compositions comprising eugenol polyethers and/or eugenol polyethers modified with siloxanes, and to the use of eugenol polyethers in polyether siloxanes based on these eugenol polyethers as wetting agents.