Patent application number | Description | Published |
20100240831 | Branched (Meth)acrylate Copolymer with High Refractive Index and Method for Preparing the Same - Disclosed herein is a branched (meth)acrylate copolymer prepared by polymerizing a monomer mixture comprising (A) about 20 to about 99.999% by weight of a (meth)acrylate monomer having a refractive index higher than methyl methacrylate; (B) about 0 to about 79.999% by weight of a mono-functional unsaturated monomer; and (C) about 0.001 to about 10% by weight of a crosslinking monomer. The copolymer has a refractive index of about 1.495 to about 1.590. | 09-23-2010 |
20110009524 | Flame Retardant Thermoplastic Resin Composition with Improved Compatibility - Disclosed herein is a flame retardant thermoplastic resin composition including a polycarbonate resin, a branched acrylic copolymer, and a flame retardant. The flame retardant thermoplastic resin composition can have good compatibility as well as good flame retardancy, scratch resistance, colorability and appearance without requiring the addition of a compatibilizer. | 01-13-2011 |
20110021677 | Flame-Retardant Scratch-Resistant Thermoplastic Resin Composition with Improved Compatibility - Disclosed herein is a flame-retardant scratch-resistant thermoplastic resin composition comprising (A) about 20 to about 95% by weight of a polycarbonate resin; (B) about 1 to about 50% by weight of a copolymer resin comprising (B1) about 0 to about 100% by weight of a rubber modified vinyl graft copolymer resin and (B2) about 0 to about 100% by weight of a vinyl copolymer resin; (C) about 1 to about 50% by weight of a (meth)acrylic copolymer resin with a refractive index of about 1.50 to about 1.59; and (D) about 0.1 to about 40 parts by weight of a flame retardant, per 100 parts by weight of a base resin comprising (A)+(B)+(C). | 01-27-2011 |
20110040019 | Thermoplastic resin composition with improved compatibility - Disclosed herein is a thermoplastic resin composition that can have improved compatibility by introducing a branched acrylic copolymer to a polycarbonate resin. The thermoplastic resin composition can have good scratch resistance in addition to good colorability and appearance without requiring the addition of a compatibilizer. | 02-17-2011 |
Patent application number | Description | Published |
20080255270 | Method of Preparing Styrene Polymer-Silica Nanocomposite - A method of preparing a styrene polymer-silica nanocomposite is disclosed. One embodiment of the method includes polymerizing about 100 parts by weight of a monomer mixture including about 50 to about 80% by weight of an aromatic monomer and about 20 to about 50% by weight of a vinyl cyanide monomer with about 0.5 to about 30 parts by weight of a colloidal silica dispersed in a first organic solvent. | 10-16-2008 |
20090293585 | Method for Evaluating Scratch Resistance of Plastic Resins - Disclosed herein is a method for evaluating scratch resistance of a plastic resin comprising scratching a surface of a test sample of plastic resin using a scratch apparatus to form a scratch of the surface having a scratch profile; scanning the scratched test sample with a surface profile analysis apparatus to measure the scratch profile; and creating a scratch resistance evaluation index based on the measured scratch profile to evaluate the scratch resistance of the test sample. The method has good reliability and reproducibility, reduces measurement time and errors caused by measurers and measuring conditions, provides easy measurement and can be widely applied to all plastic resins. | 12-03-2009 |
20090298991 | Thermoplastic Nanocomposite Resin Composition with Improved Scratch Resistance - Disclosed herein is a thermoplastic nanocomposite resin composition comprising: (A) about 100 parts by weight of a thermoplastic resin; and (B) about 0.1 to about 50 parts by weight of metal (oxide) nanoparticles having surfaces that are organically modified with a silane compound. In the thermoplastic nanocomposite resin composition of the present invention, metal (oxide) nanoparticles are substantially uniformly dispersed into a thermoplastic resin matrix due to hybrid bonding between the resin matrix and the organo-surface modified metal (oxide) nanoparticles, so that the thermoplastic nanocomposite resin composition may provide considerably improved scratch resistance against surface damage to molded articles. | 12-03-2009 |
20100190905 | Hyperbranched Organic Modifier, Method of Preparing Thereof and Organo-Modified Clay Using the Same - The present invention provides a method of preparing a hyperbranched organic modifier which comprises reacting (a) a tertiary amine compound having at least two terminal hydroxyl groups with (b) at least one multifunctional monomer having at least two terminal functional groups capable of reacting with said hydroxyl groups. The present invention also provides an organo-modified clay treated with the hyperbranched organic modifier. | 07-29-2010 |
20100249272 | Thermoplastic nanocomposite resin composite materials - A polymer composite material includes metal (oxide) nanoparticles chemically bonded to a vinyl polymer. Some embodiments may additionally comprise thermoplastic resin through which the nanoparticles and vinyl polymer are dispersed. In some embodiments, the composite materials have improved impact strength, tensile strength, heat resistance, and flexural modulus. | 09-30-2010 |
Patent application number | Description | Published |
20100152357 | Polycarbonate Resin Composition with Improved Transparency and Scratch-Resistance - A polycarbonate resin composition can have improved transparency and scratch resistance of the present invention and comprises about 10 to about 99% by weight of polycarbonate resin (A); and about 1 to about 90% by weight of acrylic copolymer with ultra-low molecular weight and high refractive index (B). The resin composition of the present invention can further comprise acrylic resin (C). The acrylic copolymer with ultra-low molecular weight and high refractive index (B) can have a refractive index of about 1.495 to about 1.590 and a weight average molecular weight of about 3,000 to about 40,000 g/mol. | 06-17-2010 |
20100197850 | Methacrylic Copolymer, Method for Preparing the Same, and Methacrylic Resin Composition Including the Same - Disclosed herein is a methacrylic copolymer which is a polymer of a monomer mixture comprising about 20 to about 99.9% by weight of a C | 08-05-2010 |
20110160377 | Thermoplastic Resin Composition Having Improved Impact Strength and Melt Flow Properties - The present invention provides an aromatic vinyl thermoplastic resin composition including (A) about 10 to about 99% by weight of a thermoplastic resin (A) including (a1) an aromatic vinyl copolymer resin, (a2) a rubber-modified vinyl graft copolymer, or a combination of (a1) and (a2); and (B) about 1 to about 90% by weight of a branched aromatic vinyl copolymer resin including a silicon based compound. The thermoplastic resin composition of the present invention can have excellent impact strength, improved flow properties, and compactability. | 06-30-2011 |
20110160380 | Polycarbonate Resin Composition with Excellent Scratch Resistance and Impact Strength - A polycarbonate resin composition according to the present invention comprises a polycarbonate resin and an ultra-high molecular weight branched acrylic copolymer resin and can have excellent transparency, appearance, and flowability, as well as scratch resistance and impact strength. | 06-30-2011 |
20110160383 | Transparent Thermoplastic Resin Composition with Improved Impact Strength and Melt Flow Index - The present invention provides a transparent thermoplastic resin composition which may comprise (A) about 1 to about 100 parts by weight of an ultra-high molecular weight branched acrylic copolymer resin; (B) about 0 to about 99 parts by weight of an acrylic resin; and (C) about 0 to about 40 parts by weight of an acrylic impact modifier, based on 100 parts by weight of (A) and (B). The ultra-high molecular branched acrylic copolymer resin (A) may be prepared by polymerizing a monomer mixture comprising (a1) about 50 to about 99.899% by weight of a mono-functional monomer, (a2) about 0.1 to about 40% by weight of a (meth)acrylic monomer having a flexible segment represented following Chemical Formula 1, and (a3) about 0.001 to about 10% by weight of a branch-inducing monomer. The thermoplastic resin composition of the present invention can have improved transparency, scratch resistance, flowability, and impact strength. | 06-30-2011 |
20120016068 | Thermoplastic Resin Composition - Disclosed is an aromatic vinyl-based thermoplastic resin composition. The thermoplastic resin composition is based on a thermoplastic resin including a rubber-modified acrylic graft copolymer and uses a branched aromatic vinyl copolymer resin including a silicon compound. The thermoplastic resin composition can exhibit both improved impact resistance and flowability. In addition, the thermoplastic resin composition can have excellent weather resistance and moldability. | 01-19-2012 |
20120264871 | Silicone-Based Impact Modifier Including a Graft Copolymer Having a Core-Shell Structure and Thermoplastic Resin Composition Including the Same - A silicone-based impact modifier including a core-shell graft copolymer is disclosed. The silicone-based impact modifier includes a core made of a silicone-based rubber and alkyl acrylate and a shell made from an inorganic acrylate compound. Also disclosed is a thermoplastic resin composition including the silicone-based impact modifier. | 10-18-2012 |
20130150469 | Flame Retardant Expandable Polystyrene-based Polymerized Beads, and Preparation Method Thereof - A method of making flame retardant expandable polystyrene-based polymerized beads includes: mixing (a) about 70 to about 95 wt % of a styrene monomer, (b) about 1 to about 10 wt % of a char-generating thermoplastic resin, and (c) about 4 to about 29 wt % of inorganic foam particles to prepare a dispersion; and polymerizing the dispersion. The method of the present invention can eliminate further processing steps, can exhibit excellent productivity, and can allow easy control of the size of the beads. | 06-13-2013 |
20130289146 | Foam Polystyrene-Based Bead and Method for Manufacturing the Same - The present invention relates to a foam polystyrene-based bead. The foam polystyrene-based bead includes: a core containing a styrene-based resin, a char-generating thermoplastic resin, and an expanded inorganic material; and a skin disposed on the surface of the core, wherein the skin contains a resin of which the glass transition temperature is below around 120° C. The foam is contained in the core or skin. The core may further include a carbon filler. Foam produced from the expandable polystyrene beads is not an inherently self-extinguishing flame retardant material yet can have good non-flammability comparable to or better than that of inherently flame retardant materials (Non flammability level 3) as measured in accordance with KS F ISO 5660-1, heat insulation properties, and mechanical properties. | 10-31-2013 |
20140187688 | (Meth)Acrylic Copolymer, Method for Preparing the Same and Thermoplastic Resin Composition Comprising the Same - A (meth)acrylic copolymer is a copolymer of a monomer mixture including a phosphorus-based (meth)acrylic monomer represented by Formula 1, and a monofunctional unsaturated monomer. The (meth)acrylic copolymer can have improved refractive index, excellent flame resistance, transparency, scratch resistance and/or environment-friendliness: | 07-03-2014 |
20150051333 | Transparent ABS Resin Composition Having Superior Shock Resistance, Scratch Resistance, and Transparency - A transparent ABS resin composition of the present invention comprises: an acrylonitrile-butadiene-styrene graft (g-ABS) copolymer which is copolymerized by mixture of acrylate based monomer, styrene based monomer, and acrylonitrile based monomer (a2) on butadiene based rubber polymer (a1); and (B) a styrene-acrylonitrile based copolymer, satisfies a relation denoted by Equation 1 and Equation 2 below, and has excellent impact resistance, scratch resistance, and transparency: | 02-19-2015 |