196 results about "Vinylcyanide" patented technology

The present invention relates to an acrylonitrile (ASA) type thermoplastic resin composition with excellent weatherability and appearance properties, and more particularly, to an acrylate-styrene-acrylonitrile type thermoplastic resin composition comprising a) an acrylate-styrene-acrylonitrile graft copolymer; b) a butadienc-acrylonitrile mcthylmethacrylate graft copolymer; c) a copolymer of aromatic vinyl compound and vinylcyanide compound; and d) an alkyl acrylate copolymer, which has remarkably improved appearance properties such as scratch resistance, color (color stability) and gloss as well as excellent basic properties and weatherability.

A polycarbonate resin composition and a molded article manufactured using the same. The polycarbonate resin composition includes: (A) a polycarbonate resin; (B) a vinyl cyanide compound-aromatic vinyl compound copolymer; (C) an acrylonitrile-butadiene-styrene graft copolymer including (C-1) a first acrylonitrile-butadiene-styrene graft copolymer, a rubbery polymer of which has an average particle diameter of about 200 nm to about 350 nm and (C-2) a second acrylonitrile-butadiene-styrene graft copolymer, a rubbery polymer of which has an average particle diameter of about 400 nm to about 600 nm; and (D) a compatibilizer.

Disclosed are a transparent resin composition, which may be used in medical products and food storage containers, having superior chemical resistance and transparency, a method of preparing the same and a molded article manufactured therefrom. More particularly, disclosed are a thermoplastic transparent resin composition having superior chemical resistance and transparency, which comprises (A) a graft copolymer in which a) a conjugated diene rubber latex is graft copolymerized with b) a methacrylate alkyl ester compound or an acrylate alkyl ester compound, c) an aromatic vinyl compound, and d) a vinyl cyano compound; (B) a copolymerized resin in which i) a methacrylate alkyl ester compound or an acrylate alkyl ester compound, ii) an aromatic vinyl compound and iii) a vinyl cyano compound are copolymerized; and (C) a polyether-amide block copolymer, a method of preparing the same, and a molded article manufactured therefrom.

The present invention relates to a process for preparing thermoplastic resin for extrusion sheets, and particularly to a process for preparing acrylonitrile-butadiene-styrene (ABS) thermoplastic transparent resin for extrusion sheets having superior impact resistance, chemical resistance, processability, whitening resistance, high temperature elongation, etc. and very superior transparency, by controlling a mixing ratio of a methacrylate alkylester compound or acrylate alkylester compound, an aromatic vinyl compound, and a vinylcyanide compound grafted on conjugated diene rubber latex of which an average particle diameter and gel contents (degree of crosslinking) are optimized to control a refractive index of the monomer mixture to be similar to that of the rubber latex, and optimizing the molecular weight.

Disclosed are an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer which is prepared using a polyalkylene cross-linking agent such as polyethylene glycol diacrylate or polyethylene glycol dimethacrylate for a core of the alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer and thus advantageously improves low-temperature impact strength of resins when the copolymer is applied to a polycarbonate resin composition, and the polycarbonate resin composition comprising the copolymer.

The present invention provides a weather resistant thermoplastic resin with low gloss and a method of preparing the same. The thermoplastic resin of the present invention comprises a (meth)acrylic acid alkyl ester-based polymer (A) and a (meth)acrylic acid alkyl ester-based oligomeric prepolymer (B), and an aromatic vinyl-cyanide vinyl based copolymer (C), wherein the (meth)acrylic acid alkyl ester-based polymer (A) and the (meth)acrylic acid alkyl ester-based oligomeric prepolymer (B) form a network-shaped disperse phase and the aromatic vinyl-cyanide vinyl based copolymer (C) forms a continuous phase.

The invention provides an acrylate-styrene-acrylonitrile graft polymer with high impact resistance, and a preparation method and an application thereof. The particle of the acrylate-styrene-acrylonitrile graft polymer has a four-layer structure; under the combined action of a hard AS seed, a medium-crosslinking-density core and a high-crosslinking mantle layer in the particle, the particle is endowed with high elasticity; due to the high elasticity of the particle, resin can absorb more capacity under the action of an external force, and can restore to an original state after the external force disappears; thus, the resin can be endowed with high impact resistance. The aromatic vinyl compound-vinyl cyanide shell layer grafted outside the mantle layer can increase the dispersing performanceof the particle in base resin, and facilitates improving impact strength.

A thermoplastic resin composition exhibiting good balance of mechanical properties, heat resistance, flowability, and size stability as well as excellent stability in retention in the molding, appearance of the molded article, and coating properties, and also, a molded article thereof are provided. The thermoplastic resin composition is a blend of a polycarbonate resin (I), a graft copolymer (II) which comprises a graft copolymer (II-1) prepared by graft polymerization of a monomer mixture containing an aromatic vinyl monomer and a vinyl cyanide monomer in the presence of a diene rubbery polymer or a graft copolymer (II-2) prepared by graft polymerization of a monomer mixture containing an aromatic vinyl monomer and a vinyl cyanide monomer in the presence of an acryl rubbery polymer, a vinyl copolymer (III) prepared by copolymerizing an aromatic vinyl monomer and a vinyl cyanide monomer, a crystalline resin (IV), and a plate-shaped inorganic filler (V), and when total amount of (I)+(II)+(III)+(IV)+(V) is 100% by weight, (I) is 50 to 70% by weight, (II) is 3 to 15% by weight, (III) is 10 to 25% by weight, (IV) is 1 to 9% by weight, and (V) is 10 to 20% by weight, and content ratio of (IV) to 100% by weight of (V) is at least 10% by weight and less than 50% by weight.

The resin composition for a platable substrate of the present invention comprises 100 parts by weight of a resin composition (C) comprising 10 to 60% by weight of a graft copolymer (A) prepared by graft polymerization of a rubbery polymer (A1) and a monomer component (A2) containing an aromatic alkenyl compound monomer unit (a) and a vinyl cyanide compound monomer unit (b) and 40 to 90% by weight of the other polymer (B) (provided that the total amount of the components (A) and (B) is 100% by weight), and 5 to 40 parts by weight of a phosphate ester flame retardant (D) having a molecular weight of more than 326 or 2 to 40 parts by weight of a red phosphorus flame retardant (D′). The resin composition for a platable substrate of the present invention is excellent in production stability such as moldability, dimensional stability, mechanical strength and plating properties, and is also environmentally friendly. Excellent plated parts having good thermal conductivity can be provided by forming a metal plating layer on a resin molded article obtained by molding the resin composition for a platable substrate using a plating treatment. The resulting plated parts are suitable for use as housings for laptop PC and portable devices.

A reinforced thermoplastic resin composition comprising specific amounts of: a main resin component (C) comprising 50 to 100% by weight of a polycarbonate resin (A) and 0 to 50% by weight of a graft copolymer (B) obtained by polymerizing an aromatic alkenyl compound monomer (a) and a vinyl cyanide compound monomer (b) in the presence of a rubber polymer (B1); a grass fiber (D); a glycidyl ether unit-containing polymer (E) containing glycidyl ether units and having a weight average molecular weight of 3,800 to 60,000; a phosphoric acid ester-based flame retardant (F); and an organomodified siloxane (G).

A thermoplastic resin composition containing a graft copolymer (A) and a thermoplastic resin (B), in which the thermoplastic resin (B) contains a polymer having a vinyl cyanide monomer unit, the graft copolymer (A) and the thermoplastic resin (B) are contained in predetermined proportions based on the total amount of the graft copolymer (A) and the thermoplastic resin (B), the graft copolymer (A) has a main-chain polymer formed of a rubbery polymer and a graft chain, the graft chain has a vinyl cyanide monomer unit and at least one monomer unit copolymerizable with the vinyl cyanide monomer, the distribution of the content of the vinyl cyanide monomer unit in components derived from a graft chain has peak 1 having a peak top within a content range from 0 mass % or more to less than 10 mass %, and peak 2 having a peak top within a content range from 10 mass % or more to less than 55 mass %, and the difference between a representative value of the content represented by peak 1 and a representative value of the content represented by peak 2 is 10 mass % or more.