Title:
【発明の名称】新規なポリエステル類および使い捨て可能おむつの如き堆肥化可能製品におけるそれらの使用
Document Type and Number:
Japanese Patent JPH06505040
Kind Code:
A
Abstract:
The invention provides novel copolyesters, fibers and films, nonwovens from the fibers and disposable products of the copolyesters 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 copolyesters are based upon polyethylene terephthalate copolymerized with a 5-sulfoisophthalic acid and, if desired, a polyethylene ether, such as diethylene glycol, and include units from hydroxyacids selected for their melting points being lower than their decomposition temperatures.
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Inventors:
Hiyunkutsuku, Shin
Raymond Frank, Tee
Raymond Frank, Tee
Application Number:
JP50384192A
Publication Date:
June 09, 1994
Filing Date:
January 23, 1992
Export Citation:
Assignee:
E. I. Dupont Do Nemour & Company
International Classes:
A61F13/15; A61F13/49; A61L15/26; A61L15/62; C08G63/60; C08G63/66; C08G63/688; C08J5/18; D01F6/84; D01F6/86; (IPC1-7): C08G63/66; A61F13/15; C08J5/18
Attorney, Agent or Firm:
Heiyoshi Odashima (1 person outside)