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US 2008/0177007 A1Published application
Acetaldehyde scavenger and polyester blend containing the same
AssigneeFar Eastern Textile Ltd.
InventorsRoy Wu, Johnson J. G. Wang
Life of this patent
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Abstract
An acetaldehyde scavenger includes: a polymerization product of at least one of an aromatic dicarboxylic acid having a carbon number from 8 to 16 and an ester derivative of the aromatic dicarboxylic acid, and a diol compound having a carbon number from 3 to 15.
Claims18
An acetaldehyde scavenger comprising:
- a polymerization product of at least one of an aromatic dicarboxylic acid having a carbon number from 8 to 16 and an ester derivative of the aromatic dicarboxylic acid, and a diol compound having a carbon number from 3 to 15.
A polyester blend comprising:
- a blending product of an acetaldehyde scavenger and polyethylene terephthalate;
- wherein the acetaldehyde scavenger is a polymerization product of at least one of an aromatic dicarboxylic acid having a carbon number from 8 to 16 and an ester derivative of the aromatic dicarboxylic acid, and a diol compound having a carbon number from 3 to 15.
A method for making a polyester blend, comprising:
- (a) melt blending a mixture of an acetaldehyde scavenger and polyethylene terephthalate under a temperature ranging from 200° C. to 290° C. so as to form a melt blend, the acetaldehyde scavenger being a polymerization product of at least one of an aromatic dicarboxylic acid having a carbon number from 8 to 16 and an ester derivative of the aromatic dicarboxylic acid, and a diol compound having a carbon number from 3 to 15;
- and
- (b) extruding the melt blend under a vacuum condition.
Dependencies are inferred from the claim text.