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US 10,329,415 B2Granted
Thermoplastic resin composition with improved heat resistance and coloring property
AssigneeLotte Advanced Materials Co., Ltd.
InventorsJi Eun Park, Young Hyo Kim, Kang Yeol Park, Ja Yoon Kim
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Abstract
The present invention relates to a thermoplastic resin composition and, more specifically, to an acrylic resin composition having improved coloring property and heat resistance by comprising an acrylic graft copolymer, an aromatic vinyl-cyano vinyl-based copolymer and an acrylic resin, and thus is suitable for an automotive exterior material.
Claims9
A thermoplastic resin composition consisting essentially of:
- (A) an acrylic graft copolymer;
- (B) an aromatic vinyl-vinyl cyanide copolymer;
- (C) an acrylic resin;
- (D) carbon black;
- and
- optionally an additive selected from the group consisting of antimicrobial agents, heat stabilizers, antioxidants, release agents, photostabilizers, inorganic additives, surfactants, coupling agents, plasticizers, compatibilizers, lubricants, antistatic agents, colorants, pigments, dyes, flame retardants, flame retardant aids, anti-dripping agents, weathering agents, UV absorbers, UV blocking agents, and mixtures thereof,
- wherein the acrylic resin (C) has a glass transition temperature (Tg) of 110° C. or higher, and
- wherein a molded article produced using the thermoplastic resin composition satisfies Equations 1 and 2:
- 98.0≤VST [Equation 1]
- L<29.0 [Equation 2]
- wherein in Equation 1, VST denotes a Vicat softening temperature (° C.), as measured in accordance with ISO R306, and, in Equation 2, L denotes blackness (L), as measured using a spectrocolorimeter.
8 more elements
Dependencies are inferred from the claim text.