HEAT-RESISTANT POLYCARBONATE COPOLYMER

Disclosed in the present invention is a polycarbonate copolymer which possesses improved heat resistance, transparency and excellent processability by replacing bisphenol A with an economical monomer when producing the polycarbonate copolymer through melt polymerization of the bisphenol A and diphen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KANG, SO YOUNG, MIN, JOON KEUN, PARK, KWAN HWI, HWANG, YONG TAEK
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	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
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Beschreibung
Zusammenfassung:	Disclosed in the present invention is a polycarbonate copolymer which possesses improved heat resistance, transparency and excellent processability by replacing bisphenol A with an economical monomer when producing the polycarbonate copolymer through melt polymerization of the bisphenol A and diphenyl carbonate. According to the present invention, the polycarbonate copolymer, produced through melt polymerization of bisphenol A and diphenyl carbonate, is characterized in that part of the bisphenol A is replaced with 4,4-cyclohexylidenebisphenol, 2,2-biphenol, and 1,5-dihydroxynaphthalene. 비스페놀 A 및 디페닐카보네이트를 용융중합시켜 제조되는 폴리카보네이트 공중합체에 있어서 경제성 있는 단량체로 비스페놀 A를 일부 대체함으로써 개선된 내열성과 함께 투명성 및 우수한 가공성을 지니는 폴리카보네이트 공중합체가 개시된다. 본 발명은 비스페놀 A 및 디페닐카보네이트를 용융중합시켜 제조되는 폴리카보네이트 공중합체에 있어서, 상기 비스페놀 A의 일부가 4,4'-시클로헥실리덴비스페놀(4,4'-Cyclohexylidenebisphenol), 2,2'-비페놀(2,2'-Biphenol) 및 1,5-디히드록시나프탈렌(1,5-Dihydroxynaphthalene)로 대체된 것을 특징으로 하는 폴리카보네이트 공중합체를 제공한다.