公开(公告)号：EP1554330B1

公开(公告)日：2009-03-11

申请号：EP03763135.5

申请日：2003-06-30

Applicant: INVISTA Technologies S.à.r.l.

Inventor： DUAN, Jiwen, F. ,  MA, Xianyin

IPC: C08G63/688 ,  C08G63/78

CPC classification number: C08G63/6886 ,  C08G63/83 ,  C08K5/49

Abstract: A process for producing a partially ester-exchanged SIPM such as an alkali metal bis(2-hydroxyethyl) 5-sulfoisophthalate produced from an alkali metal dimethyl 5-sulfoisophthalate in an alcohol is disclosed. The partially ester-exchanged SIPM in an alcohol can be used to copolymerize with oligomer of terephthalic acid or dimethyl terephthalate and an alcohol. Also disclosed is a process for controlling the color of a dyeable polyester using a phosphorous compound.

公开(公告)号：EP1554330A1

公开(公告)日：2005-07-20

申请号：EP03763135.5

申请日：2003-06-30

Applicant: INVISTA Technologies S.à.r.l.

Inventor： DUAN, Jiwen, F. ,  MA, Xianyin

IPC: C08G63/688 ,  C08G63/78

CPC classification number: C08G63/6886 ,  C08G63/83 ,  C08K5/49

Abstract: A process for producing a partially ester-exchanged SIPM such as an alkali metal bis(2-hydroxyethyl) 5-sulfoisophthalate produced from an alkali metal dimethyl 5-sulfoisophthalate in an alcohol is disclosed. The partially ester-exchanged SIPM in an alcohol can be used to copolymerize with oligomer of terephthalic acid or dimethyl terephthalate and an alcohol. Also disclosed is a process for controlling the color of a dyeable polyester using a phosphorous compound.