The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2025
Filed:
Oct. 08, 2019
SK Chemicals Co., Ltd., Seongnam-si, KR;
Kwang Sei Oh, Seongnam-si, KR;
SK CHEMICALS CO., LTD., Seongnam-si, KR;
Abstract
A copolycarbonate ester produced from a polymerizable composition according to the present invention can have various physical properties including a melt flow index (MFI) of 43 g/10 minutes to 85 g/10 minutes under a load of 2.16 kg at 260°C. according to ASTM D1238 by being copolymerized through the melt-polycondensation of: 1,4:3,6-dianhydrohexitol and/or a diol compound other than 1,4:3,6-dianhydrohexitol including 1,14-tetradecanediol, 1,4-cyclohexanedimethanol, tricyclodecane dimethanol, 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5,5]udecane, bicycle[2.2.2]octane-2,3-dimethanol, 2,2-bis(4-hydroxycyclohexyl)propane, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, 9,9-bis(4-hydroxyphenyl)fluorene, or tetrahydofuran-2,5-dimethanol; a carbonate compound; and a petroleum-based and/or bio-based diphenyl ester and/or an additional diphenyl ester compound other than the petroleum-based and/or bio-based diphenyl ester including diphenyl sebacate, diphenyl decahydronaphthalene-2,6-dicarboxylate, diphenyl tetrahydrofuran-2,5-dicarboxylate, or 2,5-diphenyl-furandicarboxylate, and can thus be usefully applied to the manufacture of segmented products.