 Cephalosporin derivatives and use as antimicrobial agents |
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| Contact assembly |
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| 3-Heterothio[(thioalkyl)thioacetyl]cephalosporanic derivatives |
| OF THE INVENTION The various groups represented by the symbols have the meanings defined below and ... |
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| Process of manufacturing a heat-resistant composite sheet |
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| One-part moisture-curable polyurethane adhesive, coating, and sealant compositions |
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| Primer and sealant for glass and coated metal |
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| Microemulsion polymer blends |
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| Process for preparing desacetoxycephalosporins |
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| Electrode and method for laryngeal electromyography |
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| Hairdressings |
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Absorbent structure having multiple canals
| Details |
Inventors: Glaug, Frank S.; Mattingly, III, William B.;
Assignee: McNeil-PPC, Inc. (Milltown, NJ)
Primary Examiner: Prebilic; Paul
Assistant Examiner:
Attorney, Agent or Firm:
An absorbent structure for absorbing body fluid is provided having means to direct body fluid along the longitudinal axis of the product and to substantially limit side failure. Two or more longitudinal chambers of absorbent material are provided which are separated by fluid repellent walls. These walls act to guide flow generally along the longitudinal axis of the product. |
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DETAILED DESCRIPTION In accordance with the principles of the present invention, an absorbent product is provided having means to direct fluid flow substantially along the longitudinal direction of the product and substantially limit or prevent side failure by substantially preventing the flow of fluid across the transverse axis of the product.
In the absorbent product of this invention, two or more "canals", or chambers, are provided within an absorbent element which act to separate the absorbent element into a plurality of separate longitudinal absorbent areas along the longitudinal axis of the absorbent element.
The absorbent areas are separated by fluid repellent areas.
These fluid repellent areas may be formed by the moisture barrier layer, which can be nipped or molded and formed into U-shaped canals.
Alternatively, the fluid repellent areas may be formed of fluid repellent material such as fluid repellent fibers, fiber webs, repellent tissue, polymeric foams or polymeric films arranged along the longitudinal axis of the absorbent element.
The fluid repellant areas may include a relatively hydrophobic, or fluid repellent, cover or barrier material.
Should a chamber become saturated with body fluid, the fluid will spill into the adjacent chamber.
Absorbent materials such as cellulose fiber, wood pulp, rayon, peat moss, pulp mixed with superabsorbent and the like may be placed in the canals to provide absorbent capacity.
The absorbent element may be covered with a fibrous facing material, such as a non-woven fabric which aids in transmitting body fluid to the absorbent element.
A clean, dry cover made of apertured polymeric film or repellent-treated fiber, which is hydrophobic and fluid permeable may also be used for this function.
For example, an apertured film made in accordance with the teachings of U.
S.
Pat.
No.
4,690,679 (Mattingly et al.
) may be used.
Preferably, a hydrophilic, or wetting nonwoven layer of material may be bonded to such clean and dry cover in order to improve said cover's wicking capacity
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Semiconductor manufacture 
