Absorbent sanitary products

Details Absorbent sanitary products Absorbent sanitary products

1988-10-12

1990-07-03

Kruter, Jerome L.

Surgery

Means and methods for collecting body fluids or waste material

Absorbent pad for external or internal application and...

428286, 428913, A61F 1318

Patent

active

049387529

ABSTRACT:
Absorbent sanitary products, such as diapers, pads, or sanitary napkins, comprising a copolyether ester film having a water permeability of at most 0.02 g/cm.sup.2 /h at 23.degree. C. and 0.07 bar and a water vapor permeability of at least 500 g/m.sup.2 /day at 23.degree. C. and 100-50% relative humidity, a liquid-permeable layer, and a liquid-absorbing bibulous layer. The copolyether ester of the film contains 5-55 weight % of long-chain glycols having a molecular weight of 800-6000 with an atomic ratio of carbon to oxygen of 2.0 to 3.7 %. The film is made from copolyether ester chips which in water at 23.degree. C. have a water absorption of at most 15 weight %.

REFERENCES:
patent: 3968183 (1976-07-01), Hayashi et al.
patent: 4047534 (1977-09-01), Thomaschefsky et al.
patent: 4324246 (1982-04-01), Mullanc
patent: 4493870 (1985-01-01), Vrouenraets et al.
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 9, pp. 232-241.

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