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US 11,590,682 B2Granted
Molded product manufactured from high heat resistant polycarbonate ester
AssigneeSK Chemicals Co., Ltd.
InventorKwang Sei Oh
Life of this patent
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Abstract
The present invention relates to a molded product manufactured from a high heat resistant bio-based polycarbonate ester. More specifically, the molded product has excellent heat resistance, and thus can be applied to various fields such as those of automobiles, electrical electronics, displays, aviation, machines, lighting, medicine or food.
Claims11
An article molded from a bio-based polycarbonate ester having high heat resistance,
- wherein the highly heat-resistant, bio-based polycarbonate ester comprises a repeat unit 1 represented by the following Formula 1;
- a repeat unit 2 represented by the following Formula 2;
- and a repeat unit 3 represented by the following Formula 3, in molar fractions of x, y, and z, respectively:
- and
- wherein the highly heat-resistant, bio-based polycarbonate ester has a glass transition temperature (Tg) of 160 to 240° C. and a melt flow index (MI) of 5 to 150 g/10 min when measured at 260° C. under a load of 2.16 kg, and
- wherein the molar fraction x for the repeat unit 1 is a real number of greater than 0 to less than 1, the molar fraction y for the repeat unit 2 is a real number of greater than 0 to 0.7, and the molar fraction z for the repeat unit 3 is a real number of greater than 0 to 0.6.
3 more elements
An article molded from a bio-based polycarbonate ester having high heat resistance,
- wherein the highly heat-resistant, bio-based polycarbonate ester comprises a repeat unit 1 represented by the following Formula 1;
- a repeat unit 2 represented by the following Formula 2;
- and a repeat unit 3 represented by the following Formula 3:
- and
- wherein the highly heat-resistance, bio-based polycarbonate ester is composed of the above repeat units 1 to 3, and
- when the molar fractions of the repeat units 1 to 3 are x, y, and z, respectively, x is a real number of greater than 0 to less than 1, y is a real number of greater than 0 to 0.7, z is a real number of greater than 0 to 0.6, and x+y+z is 1.
3 more elements
Dependencies are inferred from the claim text.