37 results about "Vinylcyanide" patented technology

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.

The present invention relates to a thermoplastic resin composition including: a base resin including a diene-based graft polymer and a vinyl-based non-grafted polymer including an aromatic vinyl-based monomer unit and a vinyl cyanide-based monomer unit; and an additive including an olefin-based non-grafted polymer including an olefin-based monomer unit, a (meth)acrylate-based monomer unit, and a maleic acid-based monomer unit.

The invention provides a resin composition having excellent impact resistance, fluidity, heat resistance, and good appearance of a molded article, and having a high effect of suppressing tape peeling from the surface of a molded article. The invention is a resin composition, containing: 0.5 to 10 parts by weight of (C) an acrylic block copolymer (component C); 0.01 to 3.0 parts by weight of (D) a phosphorus antioxidant (component D); and 0.01 to 3.0 parts by weight of (E) a hindered phenol antioxidant (component E) relative to 100 parts by weight of a resin component composed of 45 to 90 parts by weight of (A) a polycarbonate resin (component A) and 10 to 55 parts by weight of (B) a copolymer obtained by polymerizing an aromatic vinyl monomer and a vinyl cyanide monomer (component B).

Disclosed is a thermoplastic resin composition, a method of preparing the same, and a molded article including the same. Also disclosed is a thermoplastic resin composition prepared by adding a recycled vinyl cyanide compound-conjugated diene rubber-aromatic vinyl compound copolymer and a recycled polycarbonate resin to a composition including a vinyl cyanide compound-conjugated diene rubber-aromatic vinyl compound graft copolymer, an α-methyl styrene-vinyl cyanide compound-aromatic vinyl compound copolymer, and an aromatic vinyl compound-vinyl cyanide compound copolymer according to a predetermined composition ratio.

Provided are a thermoplastic resin composition and a molded product manufactured therefrom, the thermoplastic resin composition including (A) 10 to 40 wt % of an acrylic graft copolymer that includes a core including an acrylic rubbery polymer, and a shell formed by graft polymerization of a monomer to the core, the monomer including an alkyl (meth)acrylate, an aromatic vinyl compound, a vinyl cyanide compound, or a combination thereof; (B) 30 to 60 wt % of a polyalkyl (meth)acrylate resin; and (C) 10 to 40 wt % of an N-(substituted)maleimide-acrylic copolymer.

A thermoplastic resin composition containing a resin component of 100 parts by mass, the resin component containing: 10 to 50 parts by mass of a rubber-containing graft copolymer (A); and 50 to 90 parts by mass of another resin, the rubber-containing graft copolymer (A) being obtained by graft polymerizing 30 to 80% by mass of a rubbery polymer (a1) with 20 to 70% by mass of a vinyl-based monomer mixture (a2) containing an aromatic vinyl-based monomer and a vinyl cyanide-based monomer wherein a total of the rubbery polymer (a1) and the vinyl-based monomer mixture (a2) is 100% by mass. A content of the vinyl cyanide-based monomer component in a total of an acetone-soluble matter contained in the thermoplastic resin composition is 20 to 40% by mass. A content of a metal oxide (D) in the thermoplastic resin composition is 4500 ppm or less.

The present invention provides a functional agent capable of suitably imparting a predetermined function (e.g., heat resistance) to a main polymer to be mixed, and a polymer composition having excellent functionality. [Solution] According to one aspect of the present invention, a functional agent is provided that is used by adding it to a main polymer, and contains a maleimide copolymer having (A) aromatic vinyl monomer units, (B) maleimide monomer units, and (C) vinyl cyanide monomer units, wherein (A) aromatic vinyl monomer units include α-substituted aromatic vinyl monomer units.

The invention provides methyl vinyl cyanopropyl mixed cyclosiloxane as well as a preparation method and application thereof. The methyl vinyl cyanopropyl mixed cyclosiloxane has the following structural general formula: (R1MeSiO) x (R2MeSiO) y (Me2SiO) z, wherein R1 is vinyl, Me is methyl, R2 is cyanopropyl, x, y and z are integers greater than 0, the value range of x is 1-2, the value range of y is 1-4, and the value range of z is 2-5. The polarity of the methyl vinyl cyanopropyl mixed cyclosiloxane provided by the invention is adjustable, the damping coefficient, the high temperature resistance and the oil resistance of silicone rubber can be improved, the viscosity of silicone oil can be reduced, and the low temperature resistance of the silicone oil can be improved.

A resin composition according to an embodiment of the present invention comprises: a graft copolymer including a conjugated diene-based polymer, an alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit, and a vinylcyan-based monomer unit; and a styrene-based copolymer including an alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit, and a maleimide-based monomer unit, wherein the conjugated diene-based polymer may have a degree of crosslinking of 85% or more and a degree of swelling of 14 or less, and the graft copolymer may have a degree of swelling of 5-16.

A graft copolymer obtained by carrying out graft polymerization of monomers including a vinyl cyanide-based monomer and an aromatic vinyl-based monomer on a propylene-based polymer, wherein the propylene-based polymer is a random copolymer, and the melt flow rate of the propylene-based polymer at 230°C and 2.16 kg is greater than or equal to 1.5 g / 10 minutes but less than 8 g / 10 minutes.

According to one embodiment of the present invention, a resin composition may comprise: a graft copolymer composition comprising a first graft copolymer and a second graft copolymer, wherein the first graft copolymer comprises a rubber polymer having a glass transition temperature of -120°C or higher and -90°C or lower, and the second graft copolymer comprises a rubber polymer having a glass transition temperature of -70°C or higher and -40°C or lower; a matrix copolymer composition comprising any one selected from a first matrix copolymer comprising alkyl-substituted aromatic vinyl monomer units, a second matrix copolymer comprising maleimide monomer units, and a third matrix copolymer comprising alkyl-unsubstituted aromatic vinyl monomer units, or mixtures thereof; an elastomer comprising a polyolefin compound; and a third graft copolymer wherein aromatic vinyl monomer units and vinyl cyanide monomer units are grafted onto a polyalkylene backbone.

A thermoplastic resin composition resin composition contains: 1 to 50 parts by mass of a specific polycarbonate resin (A) containing an isosorbide structure; 10 to 45 parts by mass of a graft copolymer (B) obtained by graft polymerizing a rubbery polymer (a) with a monomer (b) containing an aromatic vinyl-based monomer and a vinyl cyanide-based monomer; 5 to 49 parts by mass of an aromatic vinyl-vinyl cyanide-based copolymer (C) obtained by copolymerizing a monomer (c) containing an aromatic vinyl-based monomer and a vinyl cyanide-based monomer; and 0 to 40 parts by mass of an aromatic polycarbonate resin (D). (A total of the polycarbonate resin (A), the graft copolymer (B), the aromatic vinyl-vinyl cyanide-based copolymer (C), and the aromatic polycarbonate resin (D) is 100 parts by mass.) A molded article obtained by molding this thermoplastic resin composition.

Disclosed is a method of preparing a graft copolymer and a method of preparing a thermoplastic resin composition including the prepared graft copolymer. Also disclosed is a method of preparing a graft copolymer including a process of adding an aromatic vinyl monomer and a vinyl cyanide monomer to a conjugated diene rubber latex that is enlarged with a polymer particle diameter control agent that has a specific glass transition temperature and an average particle diameter in a specific ratio to an average particle diameter of a conjugated diene rubber latex, and graft-polymerizing the same; and a method of preparing a thermoplastic resin composition including the prepared graft copolymer.Also disclosed is a graft copolymer prepared using the conjugated diene rubber latex enlarged with the polymer particle diameter control agent exhibiting the synergistic effect of improving both impact strength and fluidity.

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.

Disclosed is a method for producing a diene-based graft copolymer resin, and a diene-based graft copolymer resin produced therefrom, the method including: adding, into a reactor, a polymerization solution containing a diene-based rubber polymer, an aromatic vinyl-based monomer, a vinyl cyan-based monomer, a polymerization initiator, and a reaction solvent, and polymerizing the polymerization solution to prepare a polymer; recovering a solution containing unreacted monomers and a reaction solvent from the polymerization solution, dispersing a releasing agent in the recovered solution, and then adding the solution into the front end of a volatilization tank; and removing the unreacted monomers and the reaction solvent from the volatilization tank.

The present disclosure relates to a thermoplastic resin composition, a method for producing the same, and a molded article containing the same, and more specifically, to a thermoplastic resin composition comprising at least one selected from the group consisting of (A) (a-1) an alkyl acrylate-aromatic vinyl compound-vinyl cyan compound graft copolymer containing an alkyl acrylate rubber having an average particle size of 50 to 120 nm, (a-2) an alkyl acrylate-aromatic vinyl compound-vinyl cyan compound graft copolymer containing an alkyl acrylate rubber having an average particle size of 150 to 600 nm, and (a-3) an alkyl acrylate-aromatic vinyl compound-vinyl cyan compound graft copolymer containing an alkyl acrylate rubber having an average particle size of 80 nm or more but less than 150 nm, and (B) (b-1) a (meth)acrylic acid alkyl ester polymer and The present invention relates to a thermoplastic resin composition, a method for producing the same, and a molded article comprising the same, the composition comprising: (b-2) 100 parts by weight of a base resin containing one or more selected from the group consisting of (meth)acrylic acid alkyl ester compound-aromatic vinyl compound-vinyl cyan compound copolymers; (C) 0.5 to 3.5 parts by weight of one or more selected from the group consisting of benzotriazole-based UV stabilizers, benzoate-based UV stabilizers, and benzophenone-based UV stabilizers, each having a molecular weight of 280 to 600 g / mol; and (D) more than 0.6 parts by weight and not more than 2 parts by weight of an NH-type HALS-based UV stabilizer having a molecular weight of 300 to 700 g / mol; wherein the (a-1) graft copolymer has an alkyl acrylate coverage (X) value of 65% by weight or more. According to the present invention, there are provided a thermoplastic resin composition which has excellent mechanical properties, transparency, and weather resistance, and which exhibits reduced change over time due to the excellent weather resistance, excellent color stability, and a beautiful appearance; a method for producing the same; and a molded article containing the same.

The present disclosure relates to a method of preparing a polymer including preparing a first polymer mixture by polymerizing while continuously adding a monomer mixture comprising a (meth)acrylate-based monomer, a vinyl aromatic monomer, and a first vinyl cyanide-based monomer to a first reactor; and preparing a second polymer mixture by polymerizing while continuously adding a second vinyl cyanide-based monomer and the first polymer mixture to a second reactor, wherein a starting time of the continuous addition of the second vinyl cyanide-based monomer and the first polymer mixture is a time when a polymerization conversion rate is 40.0 to 55.0%, and a weight ratio of the first vinyl cyanide-based monomer and the second vinyl cyanide-based monomer is 10:90 to 35:65.

The present invention relates to a thermoplastic resin composition including: a diene-based graft polymer; a vinyl-based non-grafted polymer including an alkyl-substituted aromatic vinyl-based monomer unit and a vinyl cyanide-based monomer unit; a first maleimide-based non-grafted polymer including a maleimide-based monomer unit, an alkyl-unsubstituted aromatic vinyl-based monomer unit, and a vinyl cyanide-based monomer unit; and a second maleimide-based non-grafted polymer including a maleimide-based monomer unit and an alkyl-unsubstituted aromatic vinyl-based monomer unit, wherein the first maleimide-based non-grafted polymer has a lower glass transition temperature than the second maleimide-based non-grafted polymer.

A thermoplastic resin composition of the present invention comprises: about 100 parts by weight of a thermoplastic polyurethane resin having a Shore D hardness of about 60-65 and a refractive index of about 1.562-1.565; about 105-135 parts by weight of an aromatic vinyl-vinyl cyanide-based copolymer resin; and about 20-40 parts by weight of a glycidyl(meth)acrylate-modified aromatic vinyl-based copolymer resin consisting of a methyl methacrylate-derived component, an aromatic vinyl-based monomer-derived component, a vinyl cyanide-based monomer-derived component, and a glycidyl(meth)acrylate-derived component. The thermoplastic resin composition has excellent chemical resistance, transparency, impact resistance, rigidity, thermal stability, and moldability, an excellent balance between the aforementioned physical properties, and the like.

The invention discloses a porous carbon material as well as preparation and application thereof. The porous carbon material is prepared by a method comprising the following steps: carbonizing bean dreg powder at a high temperature of 400-600 DEG C under the protection of nitrogen to obtain biomass charcoal; biomass charcoal and 1-vinyl-3-cyanomethylimidazolium chloride salt are fully and uniformly mixed in water, and separation and drying are performed to obtain a composite material; and activating the composite material at 500-700 DEG C under the protection of nitrogen, cooling, pickling, washing with water, and drying to obtain the porous carbon material. The invention provides an application of the porous carbon material as a catalyst in catalysis of a reaction of converting CO2 and epoxide into cyclic carbonate. The porous carbon material is designed by utilizing the waste bean dregs in cooperation with the ionic liquid, and the porous carbon material is rich in N element and can be used as a Lewis basic site to improve the catalytic efficiency of the carbon-based catalyst for fixing carbon dioxide into epoxide to produce cyclic carbonate.

The present invention relates to a thermoplastic resin composition, a method for preparing the same, and a molded article comprising the same. More specifically, the present invention relates to a thermoplastic resin composition, a method for preparing the same, and a molded article comprising the same; the thermoplastic resin composition comprises: 4 wt% to 31 wt% of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide graft copolymer (A-1) containing an alkyl acrylate rubber having an average particle diameter of 50 nm to 150 nm; 1 wt% to 22 wt% of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide graft copolymer (A-2) containing an alkyl acrylate rubber having an average particle diameter of more than 150 nm and 600 nm or less; 55 wt% to 77 wt% of an aromatic vinyl compound-vinyl cyanide copolymer (B); 7% to 12.5% by weight of a white pigment (C); and 3.5 wt% to 8 wt% of a white pigment auxiliary (D) having an average particle size of 2 [mu] m or less. According to the present invention, the present invention has the following effects: providing a thermoplastic resin composition, a method for preparing the thermoplastic resin composition, and a molded article comprising the thermoplastic resin composition; the thermoplastic resin composition maintains the excellent physical properties of conventional ASA-based resins, achieves high whiteness even if the input amount of white pigment is reduced, has excellent film processability, hiding power, and glossiness, has excellent appearance quality without protrusions on the surface of a sheet, and reduces manufacturing costs.

Provided are a method of preparing a graft copolymer and a graft copolymer, the method including: batch-adding a first molecular weight controlling agent, a diene-based rubber polymer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to a reactor to initiate polymerization; and after the initiation of polymerization, continuously adding a second molecular weight controlling agent, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to the reactor to perform polymerization, wherein the second molecular weight controlling agent includes an alkyl styrene-based dimer and a mercaptan-based compound in a weight ratio of 40.0:60.0 to 70.0:30.0, and a weight ratio of the first molecular weight controlling agent and the second molecular weight controlling agent is 5.0:95.0 to 25.0:75.0.

According to the present invention, there is provided a resin composition comprising an appropriate amount of a cross-linked copolymer satisfying a particle size (D50) within a desired range when a cumulative percentage on a particle size distribution diagram reaches 50% on a weight basis, and also satisfying an average H-W ratio within the desired range, and a first matrix copolymer, the first matrix copolymer includes an aromatic vinyl-based monomer unit, a vinylcyano-based monomer unit, and an alkyl (meth) acrylate monomer unit. The resin composition is excellent in all mechanical properties such as surface properties, matte properties, and scratch resistance.

The present invention provides a thermoplastic resin composition which exhibits excellent weather resistance, heat and humidity aging resistance, impact resistance, and heat resistance and a molded article which is obtained by molding the thermoplastic resin composition. Provided is a thermoplastic resin composition characterized by comprising 1-50 parts by mass of a specific polycarbonate resin (A) including an isosorbide structure, 10-45 parts by mass of a graft copolymer (B) obtained by graft polymerization of a rubbery polymer (a) and monomers (b) including an aromatic vinyl-based monomer and a vinyl cyanide-based monomer, 5-49 parts by mass of an aromatic vinyl-vinyl cyanide-based copolymer (C) obtained by copolymerization of monomers (c) including an aromatic vinyl-based monomer and a vinyl cyanide-based monomer, and 0-40 parts by mass of an aromatic polycarbonate resin (D) (wherein the total of the polycarbonate resin (A), the graft copolymer (B), the aromatic vinyl -vinyl cyanide-based copolymer (C), and the aromatic polycarbonate resin (D) is 100 parts by mass ). Also provided is a molded article which is obtained by molding the thermoplastic resin composition.

The present invention provides a resin composition and molded articles made therefrom that exhibit excellent impact resistance, fluidity, and resistance to humid heat. [Solution] A polycarbonate resin composition characterized by containing 0.001 to 1 part by weight of (C) an organic thiophosphate compound (component C) per 100 parts by weight of a resin component comprising (A) 40 to 90 parts by weight of polycarbonate resin (component A) and (B) 10 to 60 parts by weight of a copolymer obtained by polymerizing aromatic vinyl monomer and vinyl cyanide monomer (component B).

The present disclosure relates to a thermoplastic resin composition including: a diene-based graft polymer; an acrylic graft polymer; a vinyl-based polymer including a vinyl aromatic monomer unit and a vinyl cyanide-based monomer unit; a polyamide elastomer; an olefin-based polymer including a vinyl acetate monomer unit; an inorganic antibacterial agent including a metal ion supported on a glass carrier; and a zinc oxide having a BET specific surface area of 11 to 28 m2 / g.

A polycarbonate resin composition including: a 55 to 90 mass % polycarbonate resin (A) having a viscosity-average molecular weight of 17500 to 30000; a 10 to 45 mass % graft copolymer (B) containing an aromatic vinyl monomer component (b1), a vinyl cyanide monomer component (b2), and a diene rubber polymer component (b3); and, relative to a total mass of (A) and (B) being 100 parts by mass, 0.001 to 0.3 parts by mass of a triaryl phosphate (C) given by specific general formula (1); and 0.001 to 0.3 parts by mass of a phenolic structure-bearing compound (D), wherein the phenolic structure-bearing compound (D) contains at least one of 4-t-butylphenol, 2,4-di-t-butylphenol, 4-α-cumylphenol, and bisphenol A.

Provided is a thermoplastic resin composition, a method of preparing the same, and a molded article including the same. The composition includes 35 to 50 wt % of a polybutylene terephthalate resin (A) having an intrinsic viscosity of 0.6 to 0.9 dl / g; 5 to 15 wt % of a polyethylene terephthalate homopolymer (B); 7 to 9 wt % of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (C) including 23 to 35 wt % of a vinyl cyanide compound; 7 to 12 wt % of an aromatic vinyl compound-vinyl cyanide compound copolymer (D) including 26 to 40 wt % of a vinyl cyanide compound; and 20 to 37 wt % of glass fiber (E) including 50 to 70 wt % of silica (SiO2).Because the composition has excellent heat resistance, fluidity, and impact strength, tensile strength, flexural strength, and flexural modulus, it is applicable to manufacture of automotive exterior materials and parts for automotive electric / electronic equipment.

A maleimide based copolymer, manufacturing method thereof, and a resin composition using the maleimide based copolymer is provided. The maleimide based copolymer includes 40 to 60 mass % of aromatic vinyl monomer unit, 5 to 20 mass % of vinyl cyanide monomer unit, 35 to 50 mass % of maleimide monomer unit, and 0 to 10 mass % of monomer copolymerizable with these monomer units. The maleimide based copolymer has a glass transition temperature of 165° C. or higher and a melt mass flow rate of 25 to 80 g / 10 min measured at 265° C. with 98N load. By using such maleimide based copolymer, flowability can be improved without decreasing heat resistance providing ability.