公开(公告)号：EP1699846B1

公开(公告)日：2008-02-13

申请号：EP04798758.1

申请日：2004-11-01

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

Inventor： GARDNER, Michael, William ,  CUNNINGHAM, Jill, Barbara ,  WINTER, Derek, J. ,  JENKINS, Stephen, D.

IPC: C08G63/80 ,  C08G63/185

CPC classification number: C08G63/80 ,  C08G63/6856 ,  C08G63/6886

Abstract: A method for enhancing solid state polymerization of polyethylene terephthalate is disclosed in which at least one monomeric unit of diacid and/or dimethyl ester comprising at least one pendant chemical side group is copolymerized with a diol and a diacid or a dimethyl ester. The at least one pendant chemical side group may include groups chosen from tertiary butyl, hexyl, pentyl, butyl, propyl, ethyl, methyl, nitrosyl (NO2) and sulfonyl (SO2) groups.

公开(公告)号：EP1699846A1

公开(公告)日：2006-09-13

申请号：EP04798758.1

申请日：2004-11-01

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

Inventor： GARDNER, Michael, William ,  CUNNINGHAM, Jill, Barbara ,  WINTER, Derek, J. ,  JENKINS, Stephen, D.

IPC: C08G63/80 ,  C08G63/185

CPC classification number: C08G63/80 ,  C08G63/6856 ,  C08G63/6886

Abstract: A method for enhancing solid state polymerization of polyethylene terephthalate is disclosed in which at least one monomeric unit of diacid and/or dimethyl ester comprising at least one pendant chemical side group is copolymerized with a diol and a diacid or a dimethyl ester. The at least one pendant chemical side group may include groups chosen from tertiary butyl, hexyl, pentyl, butyl, propyl, ethyl, methyl, nitrosyl (NO2) and sulfonyl (SO2) groups.