Title:
POLYESTER COMPOSITIONS FOR HOT-FILL CONTAINERS
Document Type and Number:
WIPO Patent Application WO2002046286
Kind Code:
A3
Abstract:
Disclosed is a polyester composition comprising: a polyester consisting essentially of: diacid residues consisting essentially of terephthalic residues; and diol residues consisting essentially of about 92 to 98 mole percent ethylene glycol residues, about 1 to 4 mole percent diethylene glycol (DEG) residues, and about 1 to 4 mole percent 1,4-cyclohexanedimethanol (CHDM) residues; and having an inherent viscosity (IhV) which satisfies the equations IhV-X-Y = 0.74 to 0.80, wherein X is the mole fraction of CHDM and Y is the mole fraction of DEG; and at least one reheat enhancing aid in an amount sufficient to provide between about 5 and 25 % reheat improvement. Also disclosed are heat set containers suitable for packaging hot-filled liquids and processes for the manufacture of such heat set containers.
Inventors:
WEINHOLD STEPHEN
BUEHRIG LAVONNA SUZANNE
ESTEP ROBERT NOAH
FISCHER DAVID PAUL
BUEHRIG LAVONNA SUZANNE
ESTEP ROBERT NOAH
FISCHER DAVID PAUL
Application Number:
PCT/US2001/047174
Publication Date:
December 11, 2003
Filing Date:
December 05, 2001
Export Citation:
Assignee:
EASTMAN CHEM CO (US)
International Classes:
B29C49/06; B29C49/64; B65D1/00; C08K3/04; C08K3/08; C08K3/22; C08K5/134; C08L67/02; B29K67/00; B29L22/00; C08G63/672; (IPC1-7): C08K3/02; C08K3/20; C08L67/02
Domestic Patent References:
| WO1999037708A1 | 1999-07-29 |
Foreign References:
| EP0429311A2 | 1991-05-29 | |||
| EP0921144A1 | 1999-06-09 |
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