Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Nonwoven fabric – Nonwoven fabric with a preformed polymeric film or sheet
Patent
1996-04-26
1998-07-21
Pezzuto, Helen L.
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Nonwoven fabric
Nonwoven fabric with a preformed polymeric film or sheet
442394, 442400, 442401, 442402, 442408, B32B 2734
Patent
active
057835047
ABSTRACT:
Composite structure comprising one or more plies of nonwoven and one or more plies of film, these being manufactured from thermoplastics, wherein all the plies of nonwoven of which the structure is composed are totally manufactured from a polymer or a copolymer or a blend of polymers derived from lactic acid and wherein all the plies of film are totally manufactured from a polymer of the BAPE (biodegradable aliphatic polyester) type. The invention also relates to a process for manufacturing said composite structure.
Application: Diapers, sanitary napkins, protective garments, surgical drapes and masks in the medical field and certain products for absorption and filtration, protection of plants in agriculture and mulching.
REFERENCES:
patent: 5097005 (1992-03-01), Tietz
patent: 5171308 (1992-12-01), Gallagher et al.
patent: 5300358 (1994-04-01), Evers
patent: 5434004 (1995-07-01), Ajioka et al.
patent: 5508101 (1996-04-01), Patnode et al.
Authors: R.K.Kulkarnt, Ph.D., K.C.Pani, M.D., C.Neuman, B.S., F.Leonard,PhD Title: "Polylactic Acid for Surgical Implants" Journal, vol. 93, pp. 839-843, Dated: Nov. 1966.
Authors: Duane E. Cutright, Joe D. Beasley, III, Bienvenido Perez Title: "Histologic Comparison of Polylactic and Polyglycolic Acid Sutures Journal, vol. 32, No. 1, pp. 165-173, Dated: Jul. 1971.
Authors: Reza-Ul Jalil, Ph.D. Title: "Biodegradable Poly (Lactic Acid) and Poly (Lactide-CO-Glycolide) Polymers in Sustained Drug Delivery", Article, pp. 2353-2367, Date: 1990.
Ehret Philippe
Lahteenkorva Kimmo
Fiberweb
Pezzuto Helen L.
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