LIQUID CRYSTAL POLYESTER, LIQUID CRYSTAL POLYESTER COMPOSITION, AND USE THEREOF

• Main Authors: XING, Yuxiong, HUANG, Xianbo, JIANG, Sujun, XIAO, Zhongpeng, YE, Nanbiao
• Format: Patent
• Language: English; French; German
• Published: 03.07.2024
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The present disclosure discloses a liquid crystal polyester (LCP), an LCP composition, and use thereof. The LCP includes a repeating unit of formula (1), a repeating unit of formula (2), and a repeating unit of formula (3): (1) -O-Ar1-CO-, (2) -CO-Ar2-CO-, and (3) -O-Ar3-O-, where Ar1 is at least one selected from the group consisting of 2,6-naphthylene, 1,4-phenylene, and 4,4'-biphenylene; Ar2 is selected from the group consisting of 1,4-phenylene, 1,3-phenylene, and 4,4'-biphenylene; and Ar3 is selected from the group consisting of 2,6-naphthylene, 1,4-phenylene, 1,3-phenylene, and 4,4'-biphenylene; and the LCP has a melting enthalpy of over 1.5 J/g. The LCP and the composition including the LCP of the present disclosure have a high heat deflection temperature (HDT), and exhibit excellent heat resistance and anti-bubbling performance.