Polyester resin composition with excellent impact resistance and light reliability and molded article using the same
AssigneeLotte Advanced Materials Co., Ltd.
InventorsYoung Ho Park, Tae Gon Kang, Yang Il Kim, Chan Moo Park, Sang Hyun Hong
Life of this patent
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Abstract
A polyester resin composition and a molded article produced using the same. The polyester resin composition includes: (A) two polyester resins including an aliphatic ring structure and having different trans/cis isomer ratios in the aliphatic ring; (B) a white pigment; and (C) an inorganic filler, wherein the polyester resin composition has a crystallization temperature (Tc) of about 230° C. to about 250° C., as measured by differential scanning calorimetry (DSC) while cooling the resin composition at a cooling rate of −100° C./min.
Claims12
A polyester resin composition, comprising:
- (A-1) a first polyester resin comprising poly(1,4-cyclohexylene dimethylene terephthalate) (PCT) resin having a trans/cis isomer ratio of about 2.6 to about 3.0;
- and
- (A-2) a second polyester resin comprising poly(1,4-cyclohexylene dimethylene terephthalate) (PCT) resin having a trans/cis isomer ratio of about 1.8 to about 2.1;
- (B) a white pigment comprising titanium oxide;
- and
- (C) an inorganic filler,
- wherein a weight ratio of the first polyester resin (A-1) to the second polyester resin (A-2) ranges from about 1:4 to about 4:1,
- wherein the inorganic filler (C) comprises (C-1) a first inorganic filler and (C-2) a second inorganic filler, and wherein the first inorganic filler (C-1) comprises glass fibers and the second inorganic filler (C-2) comprises wollastonite,
- wherein a weight ratio of the first inorganic filler (C-1) to the second inorganic filler (C-2) ranges from about 1:3 to about 3:1, and
- wherein the polyester resin composition has a crystallization temperature (Tc) of about 230° C. to about 250° C., as measured by differential scanning calorimetry (DSC) while cooling the resin composition at a cooling rate of −100° C./min.
Dependencies are inferred from the claim text.