Abstract: The present invention provides a disposable absorbent article which does not substantially impact the surface tension of the acquired liquid and thus allows to combine good liquid acquisition performance with a liquid handling structure having large open pores. The disposable absorbent article of the present invention comprises the topsheet, a backsheet, the liquid storage structure intermediate the topsheet and the backsheet and a liquid handling structure intermediate the topsheet and the liquid storage structure. The liquid handling structure and features large open pores in order to readily accept high viscosity liquids such as faces as well as low viscosity liquids such as urine. The various components of the absorbent article of the present invention do not substantially reduce the surface tension of the acquired liquid.
Type:
Grant
Filed:
May 9, 2000
Date of Patent:
April 25, 2006
Assignee:
The Procter & Gamble Company
Inventors:
Andreas Muscat, Mattias Schmidt, Carola Elke Beatrice Olschewski
Abstract: The present invention provides a liquid removal system for applications where there is a need for liquid removal including laboratories and workshops as well as medical applications as well as dental applications. The liquid removal system exhibits improved wearing comfort by comprising an interface device which is compressible in the longitudinal and/or transverse dimension.
Type:
Grant
Filed:
December 20, 2000
Date of Patent:
August 23, 2005
Assignee:
The Procter & Gamble Company
Inventors:
Mattias Schmidt, Bruno Hohannes Ehrnsperger
Abstract: The present invention provides a liquid removal system for applications where there is a need for liquid removal including laboratories and workshops as well as medical applications and dental applications. The urine acquisition zone of the liquid removal system of the present invention has a skin hydration value of less than 200 milligrams and hence reduces phenomena related to liquid rewet from the liquid removal system.
Type:
Grant
Filed:
December 20, 2000
Date of Patent:
February 1, 2005
Assignee:
The Procter & Gamble Company
Inventors:
Mattias Schmidt, Bruno Johannes Ehrnsperger
Abstract: Premoistened wipes containing a substrate and a cleaning composition using toxicologically-acceptable ingredients for treating food such as produce, e.g., fruits and vegetables, edible animal proteins, toys baby high chairs and the like, are provided.
Type:
Grant
Filed:
October 5, 2001
Date of Patent:
November 23, 2004
Assignee:
The Procter & Gamble Company
Inventors:
Steven S. Bullock, Nicholas A. Ahr, Jenna Heil, Brian J. Roselle, Heather L. Moster, Dorothee Helene Davenet, Jean Wevers
Abstract: An absorbent article which includes a thermal cell actuator capable of adding or removing heat to or from at least a portion of the absorbent article to perform a useful function on the article. The thermal cell actuator may be activated by an action of the wearer or caregiver or by environmental conditions between the article and wearer.
Type:
Grant
Filed:
February 7, 2001
Date of Patent:
September 14, 2004
Assignee:
The Procter & Gamble Company
Inventors:
Cornelia Sprengard-Eichel, Mark James Kline, Bruno Johannes Ehrnsperger, Tracey Elaine Beckman, Constance Lee Fisher, Mattias Schmidt, Donald Carroll Roe, Bruce Ernest Tepper
Abstract: The present invention relates to absorbent articles for retaining body fluids such as urine, menses, or fecal material. In particular, the absorbent article of the present invention comprises a liquid handling member that collapses at a pressure between 2756 Pascal (0.4 psi) and 3447 (0.5 psi) in order to reduce the likelihood of causing skin marking.
Type:
Grant
Filed:
May 29, 2002
Date of Patent:
September 7, 2004
Assignee:
The Procter & Gamble Company
Inventors:
Michael Divo, Peter Dziezok, John Peter Lankhof
Abstract: The present invention provides liquid handling member which is capable of rapidly distributing the acquired liquid parallel to its surface. The present invention further provides a device for handling urine which comprises the liquid handling member.
Type:
Grant
Filed:
December 20, 2000
Date of Patent:
July 20, 2004
Assignee:
The Procter & Gamble Company
Inventors:
Bruno Johannes Ehrnsperger, Stephen Allen Goldman, Mattias Schmidt
Abstract: Disclosed are thin until wet materials that are suitable for use as acquisition members for absorbent articles (e.g., diapers, catamenial products, and adult incontinence devices). Preferred materials according to the present invention are either: 1) fibrous assemblies that utilize wet strength means to stabilize the material or 2) compressed regenerated cellulosic sponges so that, when the material is saturated with an aqueous fluid, it has an expanded wet density of between about 0.04 grams/cm3 and about 0.4 grams/cm3 and an expanded capillary desorption height of less than about 25 cm and a temporary binding means that helps maintain the material at a compressed dry density between about 0.06 grams/cm3 and about 1.2 grams/cm3 until the material is exposed to an aqueous fluid. The ratio of the compressed dry density to the expanded wet density is also greater than about 1.5:1. A suitable process for making the materials and absorbent structures using the materials are also disclosed.
Type:
Grant
Filed:
September 20, 2000
Date of Patent:
June 8, 2004
Assignee:
The Procter & Gamble Company
Inventors:
Edward Joseph Urankar, Gerald Alfred Young, Mattias Schmidt, James Albert Cleary, Matthias Konrad Hippe, Giovanni Carlucci
Abstract: An absorbent material having substantially improved structural stability in the dry and wet states. The absorbent materials are significantly less susceptible to handling losses of absorbent gelling particles during manufacturing operations. The absorbent material also is not subject to shifting of the absorbent gelling particles during or after swelling by fluids. The absorbent material comprises absorbent gelling particles comprising (a) a water-insoluble absorbent hydrogel-forming polymer; (b) a polycationic polymer bonded to the absorbent gelling particles at the surface thereof; (c) glue microfibers dispersed in the absorbent gelling particles; and (d) a carrier layer bonded to the absorbent gelling particles through the glue microfibers. The invention further relates to a method of making the absorbent materials, and the absorbent articles comprising the absorbent materials.
Abstract: The present invention relates to an absorbent article, such as for use in hygienic applications, which has an ultimate fluid storage region, and a fluid distribution region positioned between the ultimate storage region and the garment oriented surface of the article, which is in fluid communication with the ultimate fluid storage region, whereby the ultimate fluid storage region comprises material which has a Capillary Sorption Desorption Capacity at 100 cm (CSDC 100) of at least 10 g/g. Further, the liquid distribution layer comprises material having a Capillary Sorption Absorption Height at 30% of its maximum capacity (CSAH 30) of at least 25 cm. The total article provides a reduced tendency for rewetting. Particularly suitable distribution material for the present invention can be foam materials, preferably polymeric foam derived from high internal phase water-in-oil emulsions.
Type:
Grant
Filed:
October 25, 2000
Date of Patent:
April 13, 2004
Assignee:
The Procter & Gamble Company
Inventors:
Silke Arndt, Bruno Johannes Ehrnsperger, Mattias Schmidt, Gary Dean Lavon, Frank Neumann
Abstract: An absorbent article which includes a topsheet including a primary aperture for receiving fecal waste, a backsheet joined with at least a portion of the topsheet, an absorbent core disposed between at least a portion of the topsheet and the backsheet, and a spacing member disposed between the topsheet and the backsheet. The spacing member provides a void space into which feces can be directed. The absorbent article preferably also includes a body adhering composition disposed about at least a portion of the primary aperture for adhering the topsheet of the absorbent article to the wearer during use.
Type:
Grant
Filed:
October 28, 1998
Date of Patent:
April 6, 2004
Assignee:
The Procter & Gamble Company
Inventors:
Vincenzo D'Acchioli, Gianfranco Palumbo, Donald C. Roe, Eva Susanne Dominique Thurnay
Abstract: The present invention relates a method for improving skin condition by repeatedly applying lotion-treated absorbent articles to a wearer. When applied with sufficient frequency, the skin in the area covered by lotion-treated absorbent articles shows improvement in skin smoothness, relative to skin covered by untreated absorbent articles that do not comprise a skin care composition. The present invention also relates to methods for assessing skin smoothness in the area covered by an absorbent article.
Type:
Grant
Filed:
September 10, 1997
Date of Patent:
March 23, 2004
Assignee:
The Procter & Gamble Company
Inventors:
Laura Graves Spalding Van Rijswijck, Gretchen Louise Elder, Mauricio Rolando Odio, Susan Baldwin, Michelle Denise Roseman, Kevin Eugene Grandison
Abstract: The present invention provides an absorbent article which combines a hydrophobic topsheet with a good liquid acquisition performance. The absorbent article of the present invention comprises a topsheet, a backsheet, a liquid storage structure intermediate the topsheet and the backsheet, and a liquid handling structure intermediate the topsheet and the liquid storage structure. The topsheet of the present invention has a liquid retention of less than 150 mg for a test liquid having a surface tension of 33 mN/m. The liquid handling structure of the present invention has a basis weight to uncompressed caliper ratio of less than 100 grams per square meter per millimeter. The topsheet of the present invention may comprise a fiber coating such as fluoropolymers in order to lower the contact angle of the topsheet.
Abstract: A disposable absorbent article sustaining low vapor phase moisture in the space as enclosed between and the wearer in use, such as can be evaluate by measuring relative humidity on a laboratory mannequin, such can be achieved by combining high performance, low rewet absorbent cores with breathable backsheet materials.
Type:
Grant
Filed:
March 7, 2003
Date of Patent:
February 3, 2004
Assignee:
The Procter & Gamble Company
Inventors:
Mathias Kurt Herrlein, Muir Charles Robertson, Manfred Plischke, John Peter Lankhof, Ulrich Kleinsteuber
Abstract: An absorbent article having an ultimate fluid storage region and a fluid distribution region, positioned between the ultimate storage region and the garment oriented surface of the article, in fluid communication with the ultimate fluid storage region, the ultimate fluid storage region includes a material which has: (1) a Capillary Sorption Desorption Capacity at 100 cm (CSDC 100) of at least 10 g/g; (2) a Capillary Sorption Desorption Capacity at 0 cm (CSDC 0) higher than the CSDC 100; (3) a Loosely Bound Liquid Capacity (LBLC); and (4) a Capillary Sorption Desorption Release Height when 50% of the LBLC are released (CSDRH 50) less than 60 cm. Further, the liquid distribution layer material has a Capillary Sorption Absorption Height at 30% of its maximum capacity (CSAH 30) of at least 35 cm. Disuibution material can be foam materials, particularly those derived from high internal phase water-in-oil emulsions.
Type:
Grant
Filed:
October 27, 2000
Date of Patent:
December 16, 2003
Assignee:
The Procter & Gamble Company
Inventors:
Silke Arndt, Bruno Johannes Ehrnsperger, Mattias Schmidt, Gary Dean Lavon, Frank Neumann, Andrea Lieselotte Link
Abstract: An absorbent article such as a diaper, a training pant, an adult incontinence article, a bed mate, or the like is capable of rapidly transporting urine away from its acquisition zone. In particular the absorbent article stores a fraction of the acquired liquid outside of its acquisition region which fraction remains relatively unchanged between 20 percent and 100 percent load of the article. A process for handling urine in the absorbent article comprises a step of transporting a relatively constant fraction of the acquired liquid away from the acquisition zone of the article.
Type:
Grant
Filed:
December 20, 2000
Date of Patent:
December 9, 2003
Assignee:
The Procter & Gamble Company
Inventors:
Mattias Schmidt, Bruno Johannes Ehrnsperger
Abstract: The present invention provides a disposable absorbent article which combines acquisition performance for low viscosity liquids such as urine with acquisition performance for high viscosity-liquids such as faeces in its front region as well as in its back region. The topsheet wetness of the disposable absorbent article of the present invention is less than 300 mg. The front region storage under pressure of the absorbent article of the present invention is more than 800 grams per square meter.
Abstract: An absorbent article that includes a topsheet, a backsheet that is at least partially joined to the topsheet and an absorbent core that lies between the topsheet and the backsheet are described. A water activatable adhesive that, when activated, can adhere to a wearer's skin is also deposited on at least part of the absorbent article is also described.