05219646 is referenced by 68 patents and cites 16 patents.

The invention provides novel blends of starch with polyesters, and shaped articles of such blends, including fibers, foams and films, nonwovens from the fibers and disposable products 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 other ingredients, including non-aromatic diacids, such as adipic and glutaric acids, polyethylene ether groups, such as diethylene glycol or higher polyalkylene glycols, and hydroxy acids.

Title
Polyester blends and their use in compostable products such as disposable diapers
Application Number
522134
Publication Number
5219646
Application Date
February 13, 1992
Publication Date
June 15, 1993
Inventor
Raymond F Tietz
Wilmington
DE, US
Hyunkook Shin
Wilmington
DE, US
Francis G Gallagher
Wilmington
DE, US
Assignee
E I Du Pont de Nemours and Company
DE, US
IPC
C08F 20/00
B32B 27/36
B32B 27/34
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