PROCESS FOR PRODUCING POLYKETONE,申请号KR20070140545-传众专利搜索

PROCESS FOR PRODUCING POLYKETONE

申请公布号：KR20090072442(A)

申请号：KR20070140545

申请日期：2007.12.28

申请公布日期：2009.07.02

申请人：

HYOSUNG CORPORATION

发明人：YOON, SUNG KYOUN;KIM, HEON SU

分类号：C08G6/02;C08G8/02

主分类号：C08G6/02

摘要：A process for producing polyketone is provided to increase catalyst activation and inherent viscosity in a short polymerization condition by using a mixture of two kinds of acids with pKa of 4 or less as a catalyst component and a strong nucleating agent. A polyketone is prepared by copolymerizing carbon monoxide and ethylenically unsaturated compound in a liquid medium in the presence of an organometallic complex. The organometallic complex catalyst comprises (a) transition metal compounds of Group 9, 10, or 11, (b) a ligand having elements of Group 15, and (c) anions of acids with pKa of 4 or less. The (c) component is mixed with two kinds of acids with pKa of 4 or less. During the polymerization process, sodium 2,2-methylene-bis-(4,6-di-tert-butylphenyl) phosphate is added.