Patent classifications
C08L51/04
Method of preparing graft copolymer
Provided is a method of preparing a graft copolymer, which includes: preparing a liquid maleimide-based monomer; preparing a reaction solution including a diene-based rubber polymer, an aromatic vinyl-based monomer, and a vinyl cyan-based monomer; and adding the liquid maleimide-based monomer and the reaction solution to a reactor and carrying out polymerization. According to the preparation method of the present invention, the amount of the maleimide-based monomer involved in the polymerization can be increased, and the color characteristics, glass transition temperature, and softening temperature of the graft copolymer are improved.
RESIN COMPOSITION AND DISPLAY UNIT
A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer can have a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×10.sup.7 Pa or less. The cured resin layer can be formed from a resin composition that has a cure shrinkage of 5% or less.
THERMOPLASTIC COMPOUNDS CONTAINING RECYCLING MATERIAL WITH SUPERIOR QUALITY
The invention relates to thermoplastic molding compositions (T) comprising 10 to 99% by weight, based on the total weight of the molding composition (T), of at least one type of recycled polymer material (A), containing 20 to 100% by weight, based on recycled material (A), of recycled acrylonitrile-butadiene-styrene copolymer (A1); up to 80% by weight of at least one recycled styrene-acrylonitrile copolymer (A2); up to 10% by weight of recycled polymeric impurities (A3), different from (A1) and (A2); 0.1 to 30% by weight, based on the total weight of the molding composition (T), of at least one graft copolymer (B), different from (A); 0.1 to 18% by weight, based on the molding composition (T), of block copolymer (C); and optionally up to 89.8% by weight of further polymer component (D), different from (A), (B) and (C); optionally up to 30% by weight of filler and/or reinforcing agent (E); and optionally up to 30% by weight of further additive (F).
THERMOPLASTIC COMPOUNDS CONTAINING RECYCLING MATERIAL WITH SUPERIOR QUALITY
The invention relates to thermoplastic molding compositions (T) comprising 10 to 99% by weight, based on the total weight of the molding composition (T), of at least one type of recycled polymer material (A), containing 20 to 100% by weight, based on recycled material (A), of recycled acrylonitrile-butadiene-styrene copolymer (A1); up to 80% by weight of at least one recycled styrene-acrylonitrile copolymer (A2); up to 10% by weight of recycled polymeric impurities (A3), different from (A1) and (A2); 0.1 to 30% by weight, based on the total weight of the molding composition (T), of at least one graft copolymer (B), different from (A); 0.1 to 18% by weight, based on the molding composition (T), of block copolymer (C); and optionally up to 89.8% by weight of further polymer component (D), different from (A), (B) and (C); optionally up to 30% by weight of filler and/or reinforcing agent (E); and optionally up to 30% by weight of further additive (F).
THERMOPLASTIC COMPOUNDS CONTAINING RECYCLING MATERIAL WITH SUPERIOR QUALITY
The invention relates to thermoplastic molding compositions (T) comprising 10 to 99% by weight, based on the total weight of the molding composition (T), of at least one type of recycled polymer material (A), containing 20 to 100% by weight, based on recycled material (A), of recycled acrylonitrile-butadiene-styrene copolymer (A1); up to 80% by weight of at least one recycled styrene-acrylonitrile copolymer (A2); up to 10% by weight of recycled polymeric impurities (A3), different from (A1) and (A2); 0.1 to 30% by weight, based on the total weight of the molding composition (T), of at least one graft copolymer (B), different from (A); 0.1 to 18% by weight, based on the molding composition (T), of block copolymer (C); and optionally up to 89.8% by weight of further polymer component (D), different from (A), (B) and (C); optionally up to 30% by weight of filler and/or reinforcing agent (E); and optionally up to 30% by weight of further additive (F).
THERMOPLASTIC RESIN COMPOSITION, METHOD OF PREPARING THE SAME, AND MOLDED ARTICLE INCLUDING THE SAME
The present disclosure relates to a thermoplastic resin composition, a method of preparing the same, and a molded article including the same. For example, the present disclosure relates to a thermoplastic resin composition including 35 to 85% by weight of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A) containing alkyl acrylate rubber having an average particle diameter of 50 to 120 nm and 15 to 65% by weight of a polymethacrylate resin (B). The thermoplastic resin composition has an alkyl acrylate coverage value (X) of 70% or more as calculated by Equation 1. The thermoplastic resin composition may have beneficial mechanical properties, such as impact strength, tensile strength, and flexural strength, surface hardness, transparency, and colorability and may be capable of preventing occurrence of whitening during bending due to beneficial non-whitening properties.
THERMOPLASTIC RESIN COMPOSITION, METHOD OF PREPARING THE SAME, AND MOLDED ARTICLE INCLUDING THE SAME
The present disclosure relates to a thermoplastic resin composition, a method of preparing the same, and a molded article including the same. For example, the present disclosure relates to a thermoplastic resin composition including 35 to 85% by weight of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A) containing alkyl acrylate rubber having an average particle diameter of 50 to 120 nm and 15 to 65% by weight of a polymethacrylate resin (B). The thermoplastic resin composition has an alkyl acrylate coverage value (X) of 70% or more as calculated by Equation 1. The thermoplastic resin composition may have beneficial mechanical properties, such as impact strength, tensile strength, and flexural strength, surface hardness, transparency, and colorability and may be capable of preventing occurrence of whitening during bending due to beneficial non-whitening properties.
THERMOPLASTIC ELASTOMER COMPOSITION HAVING LOW DENSITY AND GOOD MECHANICAL PROPERTIES BY USING UNCOATED HOLLOW GLASS SPHERES
A thermoplastic elastomer composition contains a styrene block copolymer (SBC), a polyolefin or copolyester-based thermoplastic elastomer and uncoated hollow glass spheres, wherein the polyolefin or thermoplastic elastomer is functionalized by a grafting reaction with a vinyl alkoxysilane, a vinyl acyloxysilane, a methacryloxyalkyl alkoxysilane or a methacryloxyalkyl acyloxysilane or with an anhydride of an unsaturated organic acid. A method for producing a thermoplastic elastomer using the thermoplastic elastomer composition, and the thermoplastic elastomer obtained in the process are also disclosed. Furthermore, various uses of the thermoplastic elastomer, in which a thermoplastic elastomer having low density and yet good mechanical properties is required, are disclosed.
THERMOPLASTIC ELASTOMER COMPOSITION HAVING LOW DENSITY AND GOOD MECHANICAL PROPERTIES BY USING UNCOATED HOLLOW GLASS SPHERES
A thermoplastic elastomer composition contains a styrene block copolymer (SBC), a polyolefin or copolyester-based thermoplastic elastomer and uncoated hollow glass spheres, wherein the polyolefin or thermoplastic elastomer is functionalized by a grafting reaction with a vinyl alkoxysilane, a vinyl acyloxysilane, a methacryloxyalkyl alkoxysilane or a methacryloxyalkyl acyloxysilane or with an anhydride of an unsaturated organic acid. A method for producing a thermoplastic elastomer using the thermoplastic elastomer composition, and the thermoplastic elastomer obtained in the process are also disclosed. Furthermore, various uses of the thermoplastic elastomer, in which a thermoplastic elastomer having low density and yet good mechanical properties is required, are disclosed.
Thermoplastic resin composition and molded article manufactured therefrom
A thermoplastic resin composition of the present invention comprises: a polycarbonate resin; a rubber-modified vinyl-based graft copolymer; a large particle size rubbery polymer having an average particle size of about 400 to about 1,500 nm; an aromatic vinyl-based copolymer resin; a phosphorus-based flame retardant; talc; wollastonite; a maleic anhydride grafted rubbery polymer; and a black pigment. The thermoplastic resin composition is superior in terms of adhesion to metal, strength, flame retardancy, fluidity, and appearance.