Patents by Inventor Hoa La Wilhelm

Hoa La Wilhelm has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7179851
    Abstract: Superabsorbent material treated to resist damage when subjected to an Absorbent Product Processing Simulation Test, which simulates the mechanical damage that occurs during current commercial diaper manufacturing processes. The treated superabsorbent material has a centrifuge retention capacity of about 15 grams or greater of 0.9 weight percent sodium chloride per gram of the superabsorbent material and a gel bed permeability (GBP) at 0 psi swell pressure on pre-screened particles of about 200 (×10?9 cm2) or greater. After subjecting the treated superabsorbent material to the Absorbent Product Processing Simulation Test, the treated superabsorbent may exhibit minimal reduction in GBP of pre-screened or un-screened particles at 0 psi or at 0.3 psi swell pressure, as well as possibly exhibiting minimal reduction in average particle size diameter (PSD).
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: February 20, 2007
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jian Qin, Kenneth R. Schueler, Jr., Hoa La Wilhelm, Dave Allen Soerens
  • Publication number: 20060246272
    Abstract: A thermoplastic foam composite has at least one active agent layer, which includes active agent materials that are coated with a thermal-sticky polymer, and which is bonded to at least one surface of a soft, flexible, absorbent thermoplastic foam layer. The thermoplastic foam composite can exhibit desirable active agent properties while maintaining sufficient integrity, absorbency, and/or flexibility for specific applications. In some aspects, an adhesive can be utilized to assist with bonding the active agent layer to the thermoplastic foam layer. The thermoplastic foam composite can be utilized as an article, such as a packaging, wiper, towel, or insulation product, or can be incorporated as a component into a variety of other articles, including personal care articles, health/medical articles, and household/industrial articles, for example.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 2, 2006
    Inventors: Xiaomin Zhang, Jian Qin, Peiguang Zhou, Sridhar Ranganathan, Charles Colman, Rob Everett, Hoa La Wilhelm
  • Publication number: 20040236302
    Abstract: A wearable article, such as an absorbent pant product, including a humidity monitoring system. A humidity sensor may be attached to a signal device that produces a signal when relative humidity inside the wearable article reaches a set level, such as 80%. A delivery device may also be connected to the humidity sensor, and may deliver a treatment to a wearer's skin when the relative humidity inside the absorbent article reaches the set level. The humidity monitoring system may be electromechanical, with the opening and closing of an electrical circuit being dependent on the level of relative humidity within the absorbent article.
    Type: Application
    Filed: May 20, 2003
    Publication date: November 25, 2004
    Inventors: Hoa La Wilhelm, James Hongxue Wang
  • Publication number: 20040116014
    Abstract: An absorbent composite is provided including a substrate, at least a portion of which is coated with an absorbent adhesive composition. The substrate is folded upon itself to provide a plurality of panels. A personal care product including the absorbent composite is also disclosed.
    Type: Application
    Filed: December 13, 2002
    Publication date: June 17, 2004
    Inventors: Dave Allen Soerens, Cathleen Mae Uttecht, Hoa La Wilhelm
  • Publication number: 20040115419
    Abstract: This invention relates to wet laid absorbent fibrous foams including water insoluble fibers, a binding agent, and a superabsorbent material in. The absorbent fibrous foams of this invention have controlled absorption rates and typically absorb about 60 percent of a foam centrifuge retention capacity of 0.9 percent by weight sodium chloride solution according to the centrifuge retention capacity test, in about 30 seconds or more and have a dry tensile strength of about 0.2 g/cm/gsm or more. The hot air dried absorbent fibrous foams of this invention have desirable wet and dry tensile strengths, according to the tensile strength test described herein. The hot air dried absorbent foams of this invention are produced by forming a slurry comprising water, a binding agent, and a water-insoluble fiber, adding a superabsorbent material having a gelation time of about 40 seconds or more to the slurry, removing an amount of the water from the slurry by hot air drying, and recovering an absorbent fibrous foam.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 17, 2004
    Inventors: Jian Qin, Xiaomin Zhang, Hoa La Wilhelm
  • Publication number: 20040116885
    Abstract: An absorbent core is provided including a substrate that performs at least one fluid handling function. At least a portion of at least one region of the substrate has been modified by aperturing, calendering, coating, creping, heating, printing stretching, or a combination thereof to impart at least one different fluid handling function. The substrate is folded to provide a plurality of panels wherein at least a portion of one panel corresponds to at least a portion of the modified region of the substrate. An absorbent article including the absorbent core and a process for making the absorbent core are also disclosed.
    Type: Application
    Filed: December 13, 2002
    Publication date: June 17, 2004
    Inventors: Dave Allen Soerens, Cathleen Mae Uttecht, Hoa La Wilhelm
  • Patent number: 6610039
    Abstract: An absorbent article (10) has a longitudinal direction (26) and a lateral direction (24). The article includes a backsheet layer (30), a liquid-permeable topsheet layer (28), and an absorbent body (32) sandwiched between the backsheet layer (30) and topsheet layer (28). A surge management member (46) is joined between the topsheet layer (28) and the absorbent body (32), and the surge management member (46) includes at least a first nonwoven fabric layer (52). In particular aspects, the article (10) can be bent around a wearer's body contours with a reduced tendency to form a transverse channel crease (76) along the cross-direction of the surge management member, particularly when the surge member (46) is curved through the wearer's crotch region.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: August 26, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Hoa La Wilhelm, Alan Francis Schleinz, David Louis Zenker
  • Patent number: 6582413
    Abstract: An absorbent article (10) has a longitudinal direction (26), a lateral, transverse direction (24), an article front portion (14), an article back portion (12), and an intermediate portion (16) interconnecting the front and back portions. The article includes an elastomerically stretchable backsheet member (30), a liquid-permeable topsheet layer (28), and an elastomerically stretchable retention portion (48) sandwiched between the backsheet member (30) and the topsheet layer (28). The topsheet layer can be elastomerically stretchable, and the absorbent article (10) can also provide a selected combination of physical properties, such as a composite-article elongation-at-peak-load value which is at least about 50 percent.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: June 24, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Candace Dyan Krautkramer, Rob David Everett, Toan Thanh LeMinh, Debra Jean McDowall, Hoa La Wilhelm, David Louis Zenker
  • Patent number: 6465712
    Abstract: There is provided an absorbent system for personal care products which may be transversely divided into about an equally sized center zone, two intermediate zones and two end zones where the ratio of the amount of liquid stored in the center zone to the amount of liquid stored in at least one of the end zones 30 minutes each of three insults of 80 ml according to a MIST Evaluation Test after less than 5:1. Such an absorbent system may be used in personal care products like diapers, training pants, feminine hygiene products, absorbent underpants, adult incontinence products, and the like.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: October 15, 2002
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Billie Jean Matthews, Richard Allen Anderson, Andrew Scott Burnes, Kuo-Shu Edward Chang, Richard Norris Dodge, II, Stanley Michael Gryskiewicz, Connie Lynn Hetzler, Margaret Gwyn Latimer, Yong Li, Sylvia Bandy Little, Tamara Lee Mace, James Brian Riddle, Lawrence Howell Sawyer, Eugenio Go Varona, Hoa La Wilhelm
  • Publication number: 20010025164
    Abstract: An absorbent article (10) has a longitudinal direction (26), a lateral, transverse direction (24), an article front portion (14), an article back portion (12), and an intermediate portion (16) interconnecting the front and back portions. The article includes an elastomerically stretchable backsheet member (30), a liquid-permeable topsheet layer (28), and an elastomerically stretchable retention portion (48) sandwiched between the backsheet member (30) and the topsheet layer (28). The topsheet layer can be elastomerically stretchable, and the absorbent article (10) can also provide a selected combination of physical properties, such as a composite-article elongation-at-peak-load value which is at least about 50 percent.
    Type: Application
    Filed: March 22, 2001
    Publication date: September 27, 2001
    Inventors: Candace Dyan Krautkramer, Rob David Everett, Toan Thanh LeMinh, Debra Jean McDowall, Hoa La Wilhelm, David Louis Zenker
  • Patent number: 6245051
    Abstract: An absorbent article (10) has a longitudinal direction (26), a lateral direction (24), a first waistband portion (12), a second waistband portion (14) and an intermediate portion (16) interconnecting the first and second waistband portions. The article (10) includes a backsheet layer (30); a liquid permeable top sheet layer (28); and an absorbent structure (32) sandwiched between the backsheet and topsheet layers. The absorbent structure includes a retention portion (48) having a first retention section (47) and a longitudinally opposed second retention section (49). A liquid distribution, waist belt component (52) has a belt first end region (54), a belt second end region (56) and a belt medial region (58) interconnecting the belt first and second end regions.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: June 12, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: David Louis Zenker, Hoa La Wilhelm, Rob David Everett
  • Patent number: 6231557
    Abstract: An absorbent article (10) has a longitudinal direction (26), a lateral, transverse direction (24), an article front portion (14), an article back portion (12), and an intermediate portion (16) interconnecting the front and back portions. The article includes an elastomerically stretchable backsheet member (30), a liquid-permeable topsheet layer (28), and an elastomerically stretchable retention portion (48) sandwiched between the backsheet member (30) and the topsheet layer (28). The topsheet layer can be elastomerically stretchable, and the absorbent article (10) can also provide a selected combination of physical properties, such as a composite-article elongation-at-peak-load value which is at least about 50 percent.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: May 15, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Candace Dyan Krautkramer, Rob David Everett, Toan Thanh LeMinh, Debra Jean McDowall, Hoa La Wilhelm, David Louis Zenker
  • Patent number: 6152904
    Abstract: There is provided an absorbent system for personal care products which may be transversely divided into about an equally sized center zone, two intermediate zones and two end zones where the ratio of the amount of liquid stored in the center zone to the amount of liquid stored in at least one of the end zones 30 minutes after each of three insults of 80 ml according to a MIST Evaluation Test is less than 5:1. Such an absorbent system may be used in personal care products like diapers, training pants, feminine hygiene products, absorbent underpants, adult incontinence products, and the like.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: November 28, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Billie Jean Matthews, Richard Allen Anderson, Andrew Scott Burnes, Kuo-Shu Edward Chang, Richard Norris Dodge, II, Stanley Michael Gryskiewicz, Connie Lynn Hetzler, Margaret Gwyn Latimer, Yong Li, Sylvia Bandy Little, Tamara Lee Mace, James Brian Riddle, Lawrence Howell Sawyer, Eugenio Go Varona, Hoa La Wilhelm
  • Patent number: 6075178
    Abstract: An absorbent article (10) has a front waistband portion (14), a back waistband portion (12) and an intermediate portion (16). The article comprises a flexible backsheet member (30), and a liquid permeable topsheet layer (28). An absorbent body structure (32), with a retention portion (48), is sandwiched between the backsheet member (30) and the topsheet layer (28), and a wetness indicator (40) visually shows a presence of liquid in selected areas of the article. The wetness indicator is provided by at least one indicator section of the backsheet member (30) which includes a polymer sheet layer (96). Desirably, The wetness indicator is provided by at least one indicator section of the backsheet member (30) which includes a backsheet laminate material having a fibrous nonwoven web (94) attached to a polymer sheet layer (96).
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: June 13, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Hoa La Wilhelm, Jennifer Marie Bauerle, David Willis Heyn, Allen Todd Leak, Dale Arthur Peterson, Carl Gerard Rippl, Diane Michele Underhill, Jerome James Workman, Jr.
  • Patent number: 5994615
    Abstract: There is provided a surge material for personal care products which is a wettable web of fibers of 30 microns in diameter or less where the web has a permeability between about 250 and 1500 Darcys, a capillary tension between about 1.5 and 5 cm, and which maintains that permeability and capillary tension over the life of the web. Its preferred that the web have a density between about 0.02 g/cc to about 0.07 g/cc.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: November 30, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Richard Norris Dodge, II, Clifford Jackson Ellis, Connie Lynn Hetzler, Sylvia Bandy Little, Tamara Lee Mace, Lawrence Howell Sawyer, Hoa La Wilhelm
  • Patent number: 5879343
    Abstract: There is provided a surge material for personal care products which is a wettable web of fibers of 30 microns in diameter or less where the web has a permeability between about 250 and 1500 Darcys, a capillary tension between about 1.5 and 5 cm, and which maintains that permeability and capillary tension over the life of the web. Its preferred that the web have a density between about 0.02 g/cc to about 0.07 g/cc.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: March 9, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Richard Norris Dodge, II, Clifford Jackson Ellis, Connie Lynn Hetzler, Sylvia Bandy Little, Tamara Lee Mace, Lawrence Howell Sawyer, Hoa La Wilhelm
  • Patent number: 5843063
    Abstract: A multifunctional material is provided for use in personal care products. The multifunctional material has a permeability between 100 and 10000 Darcys and a capillary tension between about 2 and 15 cm. Structures containing this multifunctional material can have a runoff rate of less than 25 ml per 100 ml insult, over its life. The multifunctional material should have between about 30 and 75 weight percent of a slow rate superabsorbent, between 25 and 70 weight percent of pulp and from a positive amount up to about 10 percent of a binder component. The material preferably has a density between about 0.05 and 0.5 g/cc. The material has a liquid pass through function which desorbs a surge material across time frames consistent with user conditions and releases the liquid for distribution to remote storage locations. The material, when combined with the intake and distribution materials, defines a composite structure for use in personal care products.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: December 1, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Richard Allen Anderson, Andrew Scott Burnes, Kuo-Shu Edward Chang, Stanley Michael Gryskiewicz, Connie Lynn Hetzler, Margaret Gwyn Latimer, Yong Li, Sylvia Bandy Little, Tamara Lee Mace, Billie Jean Matthews, James Brian Riddle, Lawrence Howell Sawyer, Hoa La Wilhelm