Abstract: The present invention provides a thermoplastic resin composition including a first graft copolymer including a conjugated diene-based polymer, an alkyl (meth)acrylate-based monomer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer; a second graft copolymer including an alkyl (meth)acrylate-based polymer, an aromatic vinyl-based monomer, a vinyl cyanide-based monomer, and an alkyl (meth)acrylate-based monomer; and a thermoplastic copolymer including an alkyl (meth)acrylate-based monomer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer, wherein the first graft copolymer is included in an amount of 5 to 12% by weight, and the weight of the first graft copolymer is less than the weight of the second graft copolymer and at the same time less than the weight of the thermoplastic copolymer, and a molded article manufactured using the thermoplastic resin composition.

Abstract: Disclosed herein is a process for preparing a polymer by radical polymerization. More specifically, the process disclosed herein is for preparing a polymer by controlled radical polymerization.

Abstract: A propylene copolymer, a preparation method therefor, and an application thereof are provided. The copolymer forms a cross-linked network by means of a reaction between a furan-containing propylene copolymer and a small molecule of a coupling agent, thereby achieving a chemical bond connection between a polypropylene resin phase and an ethylene-propylene copolymer elastomer phase, fundamentally strengthening the force between the two phases, and improving the mechanical properties of a material. Meanwhile, the copolymer can achieve the decrosslinking of a material during melt processing such that the material has thermoplasticity, and after cooling, it can be crosslinked again to produce network structure.

Abstract: Hyperbranched polyester polyols having 40 to 60% linear carbons, based on the total number of linear, dendritic, and terminal carbons are used as polymer processing additives. Compositions containing a thermoplastic polymer and such polymer processing additives, as well as methods of extruding thermoplastic polymers containing such polymer processing additive compositions are described. The additional use of synergists selected from the group consisting of polyethylene glycols, polyethylene oxides, polycaprolactones and combinations thereof are also described.

Abstract: The present invention provides a process for producing a polyethylene composition by treating a cross-linkable ethylene copolymer containing monomer units with hydrolysable silane-groups and polar monomer units. The invention further provides a treated cross-linkable polyethylene composition 5 obtained by the process and a silane-crosslinked polyethylene composition obtained by the process. The invention further provides articles comprising the treated cross-linkable polyethylene composition or comprising the silane-crosslinked polyethylene composition.

Abstract: The present disclosure provides a composition. In an embodiment, the composition is an ethylene-based polymer composition formed by high pressure (greater or equal to 100 MPa) free radical polymerization. The composition includes ethylene monomer and a mixture of hydrocarbon-based molecules. Each hydrocarbon-based molecule includes three or more internal alkene groups.

Abstract: A thermoplastic resin composition of the present invention comprises: about 100 parts by weight of a polycarbonate resin; about 10 to about 40 parts by weight of a polyester resin; about 0.1 to about 1.0 parts by weight of a chain extender; about 50 to about 80 parts by weight of glass fibers; about 10 to about 25 parts by weight of a phosphorus flame retardant; and about 1 to about 7 parts by weight of a modified polyolefin, wherein the weight ratio of the polyester resin and the chain extender is about 1:0.01 to about 1:0.06. The thermoplastic resin composition is excellent in dimensional stability, flame retardancy, impact resistance, and the like.

Abstract: The present invention provides a chlorinated polyvinyl chloride resin that provides a molded article having excellent heat cycle characteristics and excellent weather resistance, as well as a resin composition for molding and a molded article each including the chlorinated polyvinyl chloride resin. Provided is a chlorinated polyvinyl chloride resin having an average of a ratio (A/B) of a peak intensity A observed in a range of 300 to 340 cm?1 to a peak intensity B observed in a range of 1,450 to 1,550 cm?1 of 3.5 to 40.0 in Raman imaging measurement by Raman spectroscopy.

Abstract: Polyurethanes and hot melt moisture curable adhesive compositions that include the same are disclosed. The polyurethane includes the reaction product of diisocyanate and a semi-crystalline polyester polyol having an acid number of less than 4 and including the reaction product of a saturated fatty component having a hydroxyl number less than 2, the saturated fatty component being selected from the group consisting of saturated fatty acid, saturated fatty acid ester, saturated oil, and combinations thereof, a polyhydric alcohol that includes at least three hydroxyl groups, and a dibasic acid.

Abstract: A polyethylene composition made from or containing: A) from 75% to 97% by weight of a copolymer of ethylene having: 1) a density of 0.925 g/cm3 or higher; and 2) a MI2 value of 0.5 g/10 min. or greater; and B) from 3% to 25% by weight of a polyolefin composition made from or containing: BI) from 5% to 35% by weight of a propylene homopolymer or a propylene copolymer; BII) from 20% to 50% by weight of a copolymer of ethylene containing from 1.0% to 20.0% by weight of alpha-olefin units and 25.0% by weight or less of a fraction soluble in xylene at 25° C.; and BIII) from 30% to 60% by weight of a copolymer of ethylene and propylene containing from 25.0% to 75.0% by weight of ethylene derived units and from 40.0% to 95.0% by weight of a fraction soluble in xylene at 25° C.

Abstract: A polymer film is provided, the polymer film comprises a liquid crystal polymer, comprising a soluble liquid crystal polymer and an insoluble liquid crystal polymer; and a polyimide polymer; wherein the polymer film has a thermal expansion coefficient between 0 and 60 ppm/t of 50° C. to 200° C., a water absorption rate less than 0.5%, a dielectric loss tangent of Df less than 0.005 at a frequency of 10 GHz, and a storage elastic modulus greater than 0.1 GPa at 310° C. A method for manufacturing the polymer film, the method for manufacturing the polymer film comprises steps: providing a liquid crystal polymer powder; providing a liquid crystal polymer glue; providing a polyamic acid glue; mixing the liquid crystal polymer powder, the liquid crystal polymer glue and the polyamic acid glue into a mixed solution, the mixed solution is made into a gel film.

Abstract: Disclosed is a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same, including a thermoplastic resin composition including 100 parts by weight of a base resin including a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer (A); a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer (B); an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (C); a vinyl cyanide compound-aromatic vinyl compound copolymer (D); and a branched vinyl cyanide compound-aromatic vinyl compound copolymer (E) and a high-density polyethylene resin (F), a method of preparing the thermoplastic resin composition, and a molded article manufactured using the thermoplastic resin composition.

Abstract: An adhesive for a tennis ball includes base rubber. The base rubber contains, as a main component thereof, liquid rubber having a number average molecular weight of not less than 10,000. The adhesive has a shear viscosity of not greater than 2,000 Pa·s. A tennis ball includes a hollow core made of a rubber material. The core includes two hemispherical half cores. The two half cores are adhered to each other by using the adhesive for a tennis ball.

Abstract: The aqueous adhesive for a tennis ball includes rubber latex. The rubber latex is a mixture of liquid rubber latex and solid rubber latex. A ratio of liquid rubber to an entire rubber component contained in the rubber latex is greater than 20% by weight and less than 90% by weight in terms of solid content. The tennis ball includes a seam formed of the aqueous adhesive for a tennis ball.