Composite resin composition for automobile interior materials and automobile interior material manufactured using the same
AssigneeLG Chem, Ltd.
InventorsGun Ko, Seonho Kong, Sun Mo Son
Life of this patent
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Abstract
A composite resin composition is described for automobile interior products and an automobile interior product manufactured using the same. More particularly, the composite resin composition for automobile interior products includes optimized materials, thereby providing improved heat resistance and chemical resistance. Accordingly, the composite resin composition for automobile interior products can satisfy the balance between physical properties such as mechanical properties, fluidity, and light resistance and provide excellent product reliability and appearance.
Claims14
A composite resin composition, comprising:
- 15 to 20% by weight of a first vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer, based on 100% by weight of a total of the composite resin composition;
- 9 to 15% by weight of a second vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer, based on 100% by weight of a total of the composite resin composition;
- 32 to 40% by weight of an aromatic vinyl compound-vinyl cyanide compound copolymer, based on 100% by weight of a total of the composite resin composition;
- and
- 29 to 37% by weight of a polyester resin, based on 100% by weight of a total of the composite resin composition,
- wherein an amount (%) of the aromatic vinyl compound comprised in the first vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer is smaller than an amount (%) of the aromatic vinyl compound comprised in the second vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer, wherein the intrinsic viscosity of the polyester resin is 1.1 to 1.3 dl/g, and wherein the vinyl cyanide compound comprised in the aromatic vinyl compound-vinyl cyanide compound copolymer is comprised in an amount of 26 to 29% by weight based on a total weight of the copolymer.
A method of preparing a composite resin composition, the method comprising:
- feeding a mixture into an extruder, the mixture comprising:
- 15 to 20% by weight of a first vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer, based on 100% by weight of a total of the composite resin composition;
- 9 to 15% by weight of a second vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer, based on 100% by weight of a total of the composite resin composition;
- 32 to 40% by weight of an aromatic vinyl compound-vinyl cyanide compound copolymer, based on 100% by weight of a total of the composite resin composition;
- and 29 to 37% by weight of a polyester resin, based on 100% by weight of a total of the composite resin composition, and
- melt-kneading and extruding the mixture,
- wherein an amount (%) of the aromatic vinyl compound comprised in the first vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer is smaller than an amount (%) of the aromatic vinyl compound comprised in the second vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer,
- wherein the intrinsic viscosity of the polyester resin is 1.1 to 1.3 dl/g, and wherein the vinyl cyanide compound comprised in the aromatic vinyl compound-vinyl cyanide compound copolymer is comprised in an amount of 26 to 29% by weight based on a total weight of the copolymer.
Dependencies are inferred from the claim text.