C08J2455/02

PROCESS FOR PRODUCING A STABILIZER DISPERSION AND PROCESS FOR PRODUCING A THERMOPLASTIC COMPOSITION STABILIZED WITH THE STABILIZER DISPERSION

The invention relates to a process for producing a stabilizer dispersion S, wherein the stabilizer dispersion is an aqueous composition comprising at least one phenolic stabilizer A, at least one thio co-stabilizer B, at least one surfactant C and at least one silicon oil component D. Further the present invention is directed to a process for producing a thermoplastic moulding composition, in particular an composition based on acrylonitrile butadiene styrene copolymers (ABS), using the stabilizer dispersion S.

Support materials for 3D printing

A three-dimensionally printed article comprises a build material and a support material, the support material comprising a hydroxypropyl methylcellulose having a DS of at least 1.0 and an MS of at least 0.6, wherein DS is the degree of substitution of methoxyl groups and MS is the molar substitution of hydroxypropoxyl groups. The support material can be removed from the build material by contacting the support material with water.

Efficient Separation of Polycarbonate From Mixed Plastics

The invention is in the field of recycling plastic waste. In particular, the invention is directed to a method to separate polycarbonate and a first-component from plastic waste. In particular, the method according to the present invention may be used to efficiently separate polycarbonate and the first component with high purity and yield. The method is based on nonselective dissolution and selective precipitation.

Polymeric sheets, methods for making and using the same, and articles comprising polymeric sheets

In one embodiment, a polymeric sheet, comprising: a foamed layer comprising a polymeric material, wherein the polymeric material has a Tg of greater than or equal to 100? C.; and wherein the sheet has a weight reduction of 10% to 60%, as compared to a solid sheet of the same geometry and size formed from the same polymeric material. The sheet, at the thickness of 1.0 mm, has a smoke density of less than or equal to 200 particles after four minutes of burning according to ASTM E662-06. The sheet is thermoformable.

CHROME-FREE ETCH SOLUTIONS FOR CHEMICALLY RESISTANT POLYMER MATERIALS
20190032220 · 2019-01-31 ·

Chemically resistant polymers are etched using a chrome-free etch solution which is aqueous and alkaline. The chrome-free etch aqueous alkaline solution is environmentally friendly and can be used in the preparation of chemically resistant polymers for electroless metal plating including the plating of through-hole walls in the manufacture of printed circuit boards.

MULTILAYER COMPOSITE COMPOSITION, ITS MANUFACTURING PROCESS, AND ARTICLE OBTAINED THEREOF

The present invention relates to a multilayer composition comprising a surface layer comprising a thermoplastic polymer A and a substrate layer comprising a polymeric composite material based thermoplastic (meth)acrylic matrix and a fibrous material as reinforcement. The multilayer composition is suitable for mechanical or structured parts or articles with a decorative surface aspect. The present invention concerns also a manufacturing process for multilayer mechanical or structured parts or articles and three-dimensional mechanical or structured parts.

METALLIZABLE, SCRATCH-RESISTANT AND SOLVENT-RESISTANT FILM

The present invention relates to a coating composition comprising at least one thermoplastic acrylonitrile-butadiene-styrene copolymer in a content of at least 30% by weight of the solids content of the coating composition, at least one UV-curable reactive diluent in a content of at least 30% by weight of the solids content of the coating composition, at least one photoinitiator in a content of 0.1 to 10 parts by weight of the solids content of the coating composition and at least one organic solvent, where the proportion of ethylenically unsaturated groups is at least 3 mol per kg of the solids content of the coating composition. This is used to provide films and mouldings coated therewith, having a metallizable, scratch-resistant and solvent-resistant surface.

POLYCARBONATE RESIN COMPOSITION AND METHOD FOR PRODUCING SAME

Provided are: a polycarbonate resin composition which has excellent mechanical properties and wet heat resistance while being free from the problem of mold contamination due to mold deposits; and a production method which is capable of producing this polycarbonate resin composition with high productivity. A polycarbonate resin composition containing 60% to 95% by mass of a polycarbonate resin (A) and 40% to 5% by mass of an emulsion polymerized styrene-based resin (B), based on 100% by mass of a total of (A) and (B), wherein the emulsion polymerized styrene-based resin (B) is a graft copolymer of a styrenic monomer-vinyl cyanide monomer and/or an alkyl (meth)acrylate monomer-rubbery polymer; and a total amount of gas in a case where the resin composition is heated at 280 C. for 10 minutes is 3000 ppm or less in terms of mass of decane.

Metallizable, scratch-resistant and solvent-resistant film

The present invention relates to a coating composition comprising at least one thermoplastic acrylonitrile-butadiene-styrene copolymer in a content of at least 30% by weight of the solids content of the coating composition, at least one UV-curable reactive diluent in a content of at least 30% by weight of the solids content of the coating composition, at least one photoinitiator in a content of 0.1 to 10 parts by weight of the solids content of the coating composition and at least one organic solvent, where the proportion of ethylenically unsaturated groups is at least 3 mol per kg of the solids content of the coating composition. This is used to provide films and moldings coated therewith, having a metallizable, scratch-resistant and solvent-resistant surface.

Method for the production of ABS compositions having an improved surface

The invention relates to a method for producing compositions containing vinylaromatic copolymers which are obtained in an emulsion polymerization process and comprise production-related salt inclusions. Said compositions are characterized by an improved surface quality once the extruded polymer, before being granulated, or the granulate, after being granulated, has been moistened by bringing the polymer in contact with liquid water in a water bath, a tube system filled with water, or a dipping tank, thus making the compositions suitable for producing molded articles having a class A surface that remains flawless over time.