05171308 is referenced by 74 patents and cites 9 patents.

The invention provides novel polyesters, fibers and films, nonwovens from the fibers and disposable products of the polyesters such as diapers. The products are degradable under the conditions typically existing in waste composting processes, have low ingredient costs and yet provide strength and toughness properties adequate for end uses such as in disposable diapers. The polyesters are based upon polyethylene terephthalate copolymerized with a non-aromatic diacid, such as adipic and glutaric acids, and containing alkali metal or alkaline earth metal sulfo groups, such as a metal 5-sulfoisophthalic acid derivative.

Title
Polyesters and their use in compostable products such as disposable diapers
Application Number
522134
Publication Number
5171308
Application Date
February 13, 1992
Publication Date
December 15, 1992
Inventor
Raymond F Tietz
Wilmington
DE, US
Hyunkook Shin
Wilmington
DE, US
Steven M Hansen
Kinston
NC, US
Cathy J Hamilton
Wilmington
DE, US
Francis G Gallagher
Wilmington
DE, US
Assignee
E I Du Pont de Nemours and Company
DE, US
IPC
C08G 63/672
C08G 63/60
C08G 63/20
A61F 13/46
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