摘要:
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 C6-20 aromatic methacrylate, an aliphatic methacrylate, or a combination thereof, and about 0.1 to about 80% by weight of a mono-functional unsaturated monomer. The methacrylic copolymer can have a high refractive index of about 1.495 to about 1.59, and thus when it is blended with polycarbonate resin, it is possible to obtain a methacrylic resin composition having improved compatibility without any other compatibilizer.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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).
摘要:
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.