Copolymers and thermoplastic resin composition comprising the same
AssigneeLotte Advanced Materials Co., Ltd.
InventorsJoo Hyun Jang, Jae Won Heo, Bo Eun Kim, Kwang Soo Park, Yu Jin Jung, Ki Bo Chang, Young Sub Jin
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Abstract
A copolymer includes (A) an aromatic vinyl-based monomer, (B) an unsaturated nitrile-based monomer, (C) a cross-linkable siloxane compound, and (D) an N-substituted maleimide-based monomer to realize a synergistic effect of matting characteristics and heat resistance properties. A thermoplastic resin composition including the copolymer, and a molded article including the thermoplastic resin composition are provided.
Claims15
A copolymer of a mixture of monomers comprising:
- (A) an aromatic vinyl monomer, (B) an unsaturated nitrile monomer, (C) a cross-linkable siloxane compound, (D) an N-substituted maleimide monomer, and at least one multifunctional vinyl monomer selected from the group consisting of divinylbenzene, ethylene glycol di(meth)acrylate, allyl(meth)acrylate, diallylphthalate, diallylmalate, and triallylisocyanurate,
- wherein the copolymer has a glass transition temperature (Tg) of about 95 to about 115° C.,
- wherein a weight ratio of (C) the cross-linkable siloxane compound and (D) the N-substituted maleimide monomer is in a range of about 1:0.3 to about 1:3, and
- wherein a molded article comprising the copolymer has a gloss of about 32% or less, as measured at an angle of 60° by an evaluation method according to ASTM D523, and has a Vicat softening temperature (VST) of about 101 to about 110° C., as measured for a ¼ inch-thick specimen under conditions of a load of 5 kg and a rate of 50° C./hr by an evaluation method according to ISO 306B50.
A copolymer consisting of units derived from (A) an aromatic vinyl monomer, (B) an unsaturated nitrile monomer, (C) a cross-linkable siloxane compound, (D) an N-substituted maleimide monomer, and optionally at least one multifunctional vinyl monomer selected from the group consisting of divinylbenzene, ethylene glycol di(meth)acrylate, allyl(meth)acrylate, diallylphthalate, diallylmalate, and triallylisocyanurate,
- wherein the copolymer has a glass transition temperature (Tg) of about 95 to about 115° C.,
- wherein a weight ratio of (C) the cross-linkable siloxane compound and (D) the N-substituted maleimide monomer is in a range of about 1:0.3 to about 1:3, and
- wherein a molded article comprising the copolymer has a gloss of about 32% or less, as measured at an angle of 60° by an evaluation method according to ASTM D523, and has a Vicat softening temperature (VST) of about 101 to about 110° C., as measured for a ¼ inch-thick specimen under conditions of a load of 5 kg and a rate of 50° C./hr by an evaluation method according to ISO 306B50.
Dependencies are inferred from the claim text.