The present invention generally relates a polymer-metal junction comprising PEEK-PEmEK copolymers compositions, in contact with a metal substrate, wherein the PEEK-PEmEK copolymer having R.sub.PEEK and R.sub.PEmEK repeat units in a molar ratio R.sub.PEEK/R.sub.PEmEK ranging from 95/5 to 45/55. The present invention also relates to shaped articles including the polymer-metal junction, and methods of making the polymer-metal junctions.

A method of making a PEEK-PEmEK copolymer having R.sub.PEEK and R.sub.PEmEK repeat units in a molar ratio R.sub.PEEK/R.sub.PEmEK ranging from 95/5 to 45/55, the PEEK-PEmEK copolymer obtained from the method and the polymer composition including the PEEK-PEmEK copolymer, at least one reinforcing filler, at least one additive, or a combination thereof, shaped articles including the polymer composition, polymer-metal junctions including the polymer composition. Also described are methods of making the polymer composition, methods of making the shaped articles, and methods of making the polymer-metal junctions.

The present document describes an aqueous coating composition for preventing or reducing air oxidation of a carbon material, and aqueous priming coating composition for application to a carbon material prior to application of the aqueous coating composition, chemical treatment of a carbon material comprising both the aqueous coating composition and aqueous priming coating composition, and methods of coating carbon material with the compositions.

The present invention provides a polyester resin having a self-emulsifying function which is able to form an aqueous emulsion without using any emulsifier and organic solvent. The present invention also provides a water dispersion, an aqueous adhesive, an aqueous ink, a laminate and a packaging material containing the above polyester resin, as well as a method for preparing the water dispersion.

The present invention provides a composition comprising an organic compound having an acid dissociation constant in a 25° C. aqueous solution of 5.0 to 15.0, a hydrophilic resin, and a basic compound, wherein a content of the organic compound is 30 to 1,000 parts by weight per 100 parts by weight of the hydrophilic resin.

Systems, devices, and methods are provided for producing a 3d-printable composite material for large scale printing. A method can include receiving a first component comprising a (meth)acrylic monomer or a (meth)acrylic oligomer, or a combination thereof. The method can include receiving a second component comprising a photoinitiator and a third component comprising a polymerization enhancer. The method can include mixing the first component, second component, and third component with a mixing reactor to form a mixture. The method can include filtering the mixture with a filtration unit and removing a solid residue from the mixture. The method can include curing the filtered mixture with a radiation unit into a gel component and a liquid component. The method can include separating the gel component with a phase separation unit and then milling the gel component. And the method can include mixing the gel component, the photoinitiator, the mineral filler and optionally the recycled previously printed composite material to form the composite material.

The invention involves a material that exhibits both thermal insulation and temperature resistance properties. The high temperature material is a metallic silicate bonded with a ceramic. The metallic silicate material mixes and applies with paint or paint base and provides temperature resistant color, as well as heat insulation to the object being coated. The metallic silicate also provides corrosion resistance to the base material. The metallic silicate preferably includes naturally occurring stone having a content of silicate and metal including metal ions. The silicate is converted to a liquid and bonded with a metal ion and, in some embodiments, a ceramic within a basic paint base to create the metallic silicate compound. The metallic silicate compound can be combined with or formed within a paint base and applied as a film or paint coating having high temperature resistance, heat reflectivity, and corrosion resistance.

The invention relates to the use of at least one hydrogen peroxide in solid form to modify the rheology of a thermoplastic polymer when melted, specifically a polyolefin and particularly a polymer comprising at least one unit from propylene and, more particularly, polypropylene. The invention also relates to a method for modifying the rheology of a thermoplastic polymer when melted, specifically reducing viscosity when melted.

Provided are a superabsorbent polymer and a preparation method thereof. According to the present invention, a superabsorbent polymer having high centrifuge retention capacity and absorption rate may be prepared by using a specific foam stabilizer.

A plastic gel material for preventing spontaneous combustion of coal, including water, a crosslinking agent, a toughener, a coagulant, an aggregate and a water glass. The crosslinking agent (AlCit) is prepared by mixing a polyaluminum chloride solution and a citric acid solution then neutralizing the mixture with a sodium hydroxide solution. The coagulant is one or more of potassium bicarbonate, sodium bicarbonate, ammonium bicarbonate, sodium carbonate or glucono-δ-lactone (GDL). The toughener is one or more of pregelatinized starch, sodium alginate, carboxymethyl cellulose or polyacrylamide. The aggregate is coal ash or bentonite. The plastic gel has good water retention, toughness and inhibition performance, and helps avoid easy cracking and pulverization in inorganic silica gel consolidating bodies after losing water. The plastic gel can cover the surface of burning coal mass, reduce the temperature of the ignition source, heat radiation and production amount of CO, and have a fire extinguishing effect.