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US 10,414,860 B2Granted
Polycarbonate resin and preparation method therefor
AssigneeLotte Advanced Materials Co., Ltd.
InventorsJong Chan Hur, Jun Ho Chi, Woo Suk Chei, O Sung Kwon, Jung Jae Lee
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Abstract
A polycarbonate resin of the present invention comprises: a repeat unit represented by chemical formula 1 in the specification; a repeat unit represented by chemical formula 2; and a repeat unit represented by chemical formula 3. The polycarbonate resin has excellent flame retardancy, thermal resistance, transparency, impact resistance, etc.
Claims12
A polycarbonate resin comprising:
- a repeat unit represented by Formula 1;
- a repeat unit represented by Formula 2;
- and
- a unit represented by Formula 3:
- wherein A is a single bond, a C1 to C20 hydrocarbon group, —CO—, —O—, —S—, or —SO2—;
- R1, R2 , and R5 are each independently a halogen atom or a C1 to C10 hydrocarbon group;
- R3 is a C1 to C20alkyl group, a C6 to C20 aryl group, a C1 to C20 alkoxy group, or a C6 to C20 aryloxy group;
- R4 is a C1 to C20 hydrocarbon group;
- a, b, and c are each independently an integer of 0 to 4;
- n is an integer of 3 to 6;
- and * is a binding site.
8 more elements
A method of preparing a polycarbonate resin, comprising:
- reacting a diol compound represented by Formula 4 with a carbonate ester compound represented by Formula 5, a phosphoric acid ester compound represented by Formula 6, and a compound represented by Formula 7:
- wherein A is a single bond, a C1 to C20 hydrocarbon group, —CO—, —O—, —S—, or —SO2 —;
- R1, R2, and R5 are each independently a halogen atom or a C1 to C10 hydrocarbon group;
- R3 is a C1to C20 alkyl group, a C6 to C20 aryl group, a C1 to C20 alkoxy group, or a C6 to C20 aryloxy group;
- R4 is a C1 to C20 hydrocarbon group;
- R6, R7, R8 and R9 are each independently a C1 to C10hydrocarbon group;
- R10 is a hydrogen atom, a C1 to C10 alkyl group, or a C6 to C10 aryl group;
- a, b, and c are each independently an integer of 0 to 4;
- and n is an integer of 3 to 6.
6 more elements
Dependencies are inferred from the claim text.