Core-shell particles and processes for producing the same. Where the core-shell particles include a core (B) and a shell (D). The core (B) includes a thermoplastic polyester (C) with a melting range of lower than 160 C. and the shell (D) includes partially water-wettable particles (E) of metal oxide. Where the partially water-wettable particles (E) have a methanol value of less than 30 and the metal content of the core-shell particles (A) is at least 2.5% by weight.

Molded parts for structural fire protection can be manufactured or are manufactured by vulcanizing a flame retardant elastomer composition. The flame retardant elastomer composition includes a polymer blend of a double bond-containing elastomer and a vinyl acetate-containing thermoplastic polymer, a crosslinker system comprising a sulfur crosslinker or respectively sulfur-containing crosslinker and a peroxide crosslinker, and at least one flame retardant. The sulfur crosslinker or respectively sulfur-containing crosslinker is present in excess over the peroxide crosslinker in the crosslinker system. A method of manufacturing such molded parts is developed. The molded parts are produced for applications having a minimum approved use temperature of 40 C. or less.

A method of applying a PTFE (polytetrafluoroethylene) solution includes a dispersion step of dispersing a diamond powder in an organic solvent using bead milling to manufacture a dispersion solution, a mixing step of mixing a silane solution with the dispersion solution to manufacture a mixture solution, an addition step of adding the PTFE solution including PTFE particles having a size of 0.1 to 6 m to the mixture solution to manufacture a coating solution, a coating step of applying the manufactured coating solution on a surface of a piston skirt to form a coated layer including a plurality of dimples distributed thereon, and a curing step of drying and heat-treating the coated layer.

The present invention relates to a polyurethane adhesive, in particular for laminating multilayer films, wherein the PU adhesive containsbased on the total weight of the adhesive5 to 50 wt %, preferably 10 to 40 wt %, particularly preferably 20 to 30 wt % of at least one solid particulate filler, wherein at least 90% of the filler particles of the at least one filler has a particle size of 4 m or less, and the at least one filler has a Mohs hardness of 3 or less. The present invention also relates to the use of the adhesive for adhering films, to methods for producing composite films, and to composite films adhered using the aforementioned adhesive.

An electronic device is described comprising an enclosure, wherein the enclosure comprises a cured epoxy resin composition comprising at least 50 volume % of electrically non-conductive thermally conductive inorganic particles. The enclosure may be a housing of a phone, laptop, or mouse. Alternatively, the enclosure may be a case for an electronic device. Also described are epoxy resin compositions and a method of making an enclosure for an electronic device.

A method for manufacturing a low-viscosity hardener is provided. The method includes the followings steps: providing a hardener crude product; and subjecting the hardener crude product and an alkaline catalyst to an isomerization reaction, so as to obtain the low-viscosity hardener. The hardener crude product contains 3-methyltetrahydrophthalic anhydride and 4-methyltetrahydrophthalic anhydride, and a weight ratio of the 3-methyltetrahydrophthalic anhydride to the 4-methyltetrahydrophthalic anhydride ranges from 7:3 to 3:7. A viscosity of the low-viscosity hardener ranges from 30 cps to 50 cps.