Material laminate for use as a covering sheet in an...

Details Material laminate for use as a covering sheet in an... Material laminate for use as a covering sheet in an...

2005-07-12

2005-07-12

Schwartz, Larry I. (Department: 3761)

Surgery

Means and methods for collecting body fluids or waste material

Absorbent pad for external or internal application and...

C604S370000, C604S366000

Reexamination Certificate

active

06916969

ABSTRACT:
The invention relates to a material laminate for use as a covering sheet on absorbent articles such as sanitary napkins, incontinence protectors, diapers, pant diapers, or the like. The material laminate comprises a first, fluid pervious fibrous material layer and a second fluid pervious porous material layer, wherein at least one of the two material layers comprises thermoplastic material and wherein the two material layers are mutually connected by means of the covering material laminate exhibiting bond sites within which the thermoplastic material has been caused to at least partially soften or melt and thereby bond the two material layers together. In the planar extension, the material laminate exhibits two side portions extending in the length direction and having an extension in the width direction from a respective longitudinal side edge and a distance in towards the longitudinal central axis of the material laminate and a central portion positioned between the side portions in the planar extension of the material laminate, wherein the first material layer and the second material layer in the central portion of the material laminate are intermittently bonded together with a first bond pattern and that the first material layer and the second material layer in the two side portions of the material laminate are intermittently bonded together with a second bond pattern wherein the percentage bonded area in relation to the total area in the two side portions is greater then the percentage bonded area in relation to the total area in the central portion. The invention further pertains to an absorbent article comprising the material laminate.

REFERENCES:
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patent: 4761322 (1988-08-01), Raley
patent: 5591149 (1997-01-01), Cree et al.
patent: 5681300 (1997-10-01), Ahr et al.
patent: 5954705 (1999-09-01), Sawaki et al.
patent: 6103953 (2000-08-01), Cree et al.
patent: 685214 (1995-12-01), None
patent: 617602 (1997-03-01), None
patent: 93/11725 (1993-06-01), None
patent: 98/27904 (1998-07-01), None
patent: 99/49825 (1999-10-01), None

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