Twig-shaped pulyether ketone and heat-resisting copolymer of said ketone and PVC

Application Number: 00104981
Application Date: 2000.04.07
Publication Number: 1299837
Publication Date: 2001.06.20
Priority Information: 1999/12/16 KR 58255/1999
International: C08G6/02;C08L27/06
Applicant(s) Name: Young-Chang Chemical Co., Ltd.
Inventor(s) Name: Kwak Sung-Yup;An Dai-Hyul
Patent Agency Code: 11038
Patent Agent: liu jinhui
Abstract A hyperbranched polyetherketone and a heat-resistant blend of polyvinylchloride with the same. The polyetherketone is synthesized by self-polycondensation of 3,5-bis[4-[(2,3,4,5,6-pentafluorophenyl)carbonyl]phenoxy]-4-hydroxybenzophenone or 3,5-difluoro-4-hydroxybenzophenone, and then substituting 50 to 80 mole % of fluorine atoms present in the side chains and ends of the PEK molecule by polar groups. In addition, a blend of polyvinylchloride can be manufactured using the hyperbranched polyetherketone by a melt blending technique applicable for industrial purpose at a temperature of 180 to 210 DEG C., and thus the blend of polyvinylchloride with the polyetherketone can be applied to high temperature end-use products such as hot water pipes.