Title:
COMPOSITIONS AND A METHOD FOR IMPROVING REHEAT RATE OF PET USING ACTIVATED CARBON
Document Type and Number:
WIPO Patent Application WO2004110716
Kind Code:
A8
Abstract:
A polyester composition, a preform, and a bottle, containing a polyester such as polyethylene terephthalate or polyethylene naphthalate and activated carbon to enhance the rate for reheating the composition is provided. Activated carbon may be added in the presence of active phosphorus containing compounds, or at any stage in the melt phase after prepolymerization and after the polyester polymer is solidified. Polyester concentrates containing activated carbon may be added to bulk polyesters to make preforms suitable for blowing into bottles.
Inventors:
QUILLEN DONNA RICE
HOWELL EARL EDMONDSON JR
HOWELL EARL EDMONDSON JR
Application Number:
PCT/US2004/016345
Publication Date:
March 31, 2005
Filing Date:
May 25, 2004
Export Citation:
Assignee:
EASTMAN CHEM CO (US)
International Classes:
B29C45/00; C08G63/00; C08G63/16; C08G63/18; C08J3/22; C08J5/00; C08K3/04; C08L67/00; B29C; (IPC1-7): B29C/
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