POLYESTER OLIGOMER AND METHOD FOR PREPARING THE SAME AND POLYESTER-POLYCARBONATE BLOCK COPOLYMER COMPRISING THE OLIGOMER WITH IMPROVED SCRATCH RESISTANCE AND HIGH REFRACTIVE INDEX AND METHOD FOR PREPARING THE SAME

• Main Authors: KANG KI TAE, JUNG SEUNG PIL, HEO SEONG HYEN, CHOI JIN SIK, SHIN KYUNG MOO, CHANG YUN JU
• Format: Patent
• Language: English; Korean
• Published: 03.07.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention relates to a polyester oligomer and a producing method thereof, and a polyester-polycarbonate block copolymer containing the oligomer and a producing method thereof. More specifically, the present invention relates to a polyester oligomer containing a polymerization unit having...