Patents by Inventor Harry J. Chmielewski

Harry J. Chmielewski 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: 7074301
    Abstract: The present invention relates to cross-linked cellulosic fiber having improved absorbency characteristics when compared to conventional cross-linked fibers. The cross-linked cellulosic fiber is obtainable by reacting pulp in the sheet or fluff form with one or more reagents selected from organic molecule having acid and aldehyde functional groups “acid aldehydes.” The invention also relates to a method of producing the cross-linked fiber. The method includes heating the treated cellulosic fibers to promote intrafiber cross-linking. The cross-linked fibers are characterized by having an improved centrifuge retention capacity, fluid acquisition rate, resiliency, absorbent capacity, absorbency under load, and other absorbent properties. The inventive cross-linked fibers are useful in forming absorbent composites, and in particular absorbent cores for use in absorbent articles.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: July 11, 2006
    Assignee: Rayonier Products and Financial Services Company
    Inventors: Othman A. Hamed, Harry J. Chmielewski, Dana B. McBee
  • Publication number: 20040215160
    Abstract: An absorbent composition providing unexpectedly high fluid capacity with minimal gel-blocking, articles comprising the absorbent composition and methods of preparing the absorbent composition are disclosed. The absorbent composition optionally comprises a surface crosslinked polymer disbursed within a fibrous matrix of wettable fibers. The surface crosslinked polymer has an FVAUL value of at least about 60 cc after 10 minutes.
    Type: Application
    Filed: January 20, 2004
    Publication date: October 28, 2004
    Inventors: Harry J. Chmielewski, Andrew Baker
  • Publication number: 20040177935
    Abstract: The present invention is directed to cross-linked cellulosic fiber in the sheet from, obtainable by cross-linking a blend of mercerized pulp and conventional pulp. The method includes heating treated cellulosic fibers to promote intra-fiber cross-linking. The cross-linked fibers are characterized by an improved acquisition rate, resiliency, absorbency, and absorbency under load. Moreover, the inventive cross-linked fibers exhibit a reduction in centrifuge retention capacity, and have low knots, nits and fines contents. The cross-linked cellulosic fibers of the invention are useful in the acquisition layer and/or absorbent core of absorbent articles.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 16, 2004
    Inventors: Othman A. Hamed, Harry J. Chmielewski, Tina R. Murguia, Karl Sears
  • Patent number: 6753455
    Abstract: Absorbent articles having unexpectedly superior absorbency are disclosed. In particular, the absorbent articles have a roll-good type absorbent core in a novel attachment configuration that provides unexpectedly high absorbency, as well as cost efficiency.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: June 22, 2004
    Assignee: Paragon Trade Brands, Inc.
    Inventor: Harry J. Chmielewski
  • Publication number: 20040084159
    Abstract: The present invention relates to cross-linked cellulosic fiber having improved absorbency characteristics when compared to conventional cross-linked fibers. The cross-linked cellulosic fiber is obtainable by reacting pulp in the sheet or fluff form with one or more reagents selected from organic molecule having acid and aldehyde functional groups “acid aldehydes.” The invention also relates to a method of producing the cross-linked fiber. The method includes heating the treated cellulosic fibers to promote intrafiber cross-linking. The cross-linked fibers are characterized by having an improved centrifuge retention capacity, fluid acquisition rate, resiliency, absorbent capacity, absorbency under load, and other absorbent properties. The inventive cross-linked fibers are useful in forming absorbent composites, and in particular absorbent cores for use in absorbent articles.
    Type: Application
    Filed: October 28, 2003
    Publication date: May 6, 2004
    Inventors: Othman A. Hamed, Harry J. Chmielewski, Dana B. McBee
  • Patent number: 6710224
    Abstract: An absorbent composition providing unexpectedly high fluid capacity with minimal gel-blocking, articles comprising the absorbent composition and methods of preparing the absorbent composition are disclosed. The absorbent composition optionally comprises a surface crosslinked polymer disbursed within a fibrous matrix of wettable fibers. The surface crosslinked polymer has an FVAUL value of at least about 60 cc after 10 minutes.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: March 23, 2004
    Assignee: Paragon Trade Brands
    Inventors: Harry J. Chmielewski, Andrew Baker
  • Publication number: 20030230391
    Abstract: The present invention relates to cross-linked cellulosic fiber having improved absorbency characteristics when compared to conventional cross-linked fibers. The cross-linked cellulosic fiber is obtainable by reacting pulp in the sheet or fluff form with one or more reagents selected from organic molecule having acid and aldehyde functional groups “acid aldehydes.” The invention also relates to a method of producing the cross-linked fiber. The method includes heating the treated cellulosic fibers to promote intrafiber cross-linking. The cross-linked fibers are characterized by having an improved centrifuge retention capacity, fluid acquisition rate, resiliency, absorbent capacity, absorbency under load, and other absorbent properties. The inventive cross-linked fibers are useful in forming absorbent composites, and in particular absorbent cores for use in absorbent articles.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 18, 2003
    Inventors: Othman A. Hamed, Harry J. Chmielewski, Dana B. McBee
  • Patent number: 6632209
    Abstract: A disposable absorbent garment comprising a topsheet, a back-sheet and an absorbent core disposed between the topsheet and backsheet is disclosed. The absorbent core is formed from a folded laminated comprising three layers, including an upper layer, a lower layer and a central fibrous layer including from about 50 to about 95 percent by weight superabsorbent polymer and about 5 to about 50 percent by weight stabilization additives. The upper and lower layers comprise tissue, airlaid fluff pulp synthetic non-woven fibrous layers. The central fibrous layers is adhesively bonded to both the upper and lower layers, all layers together assisting to maintain the dry and wet integrity of the absorbent core. Folding of the thin absorbent laminate provides an absorbent core that can handle large doses of urine.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: October 14, 2003
    Assignee: Paragon Trade Brands, Inc.
    Inventor: Harry J. Chmielewski
  • Publication number: 20030105441
    Abstract: Absorbent articles, such as diapers, incontinence products, training pants, sanitary napkins, and the like, providing unexpectedly superior absorbency and methods of preparing the absorbent articles are disclosed. The absorbent articles comprise an absorbent core comprising a superabsorbent polymer having a Gel Integrity Index (GII) of less than about 500 kg mm.
    Type: Application
    Filed: November 30, 2001
    Publication date: June 5, 2003
    Inventor: Harry J. Chmielewski
  • Patent number: 6548732
    Abstract: An absorbent article that provides leakage protection and/or skin protection, as well as methods for using and preparing the absorbent article and novel compositions and composites for use in the absorbent article, is disclosed. The absorbent article comprises a permeable topsheet; a substantially impermeable backsheet; an absorbent core positioned between said permeable topsheet and said substantially impermeable backsheet; and a hydrophobic composition selectively disposed on the absorbent article to contain leakage. The hydrophobic composition is disposed at one or more leak protection zones.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: April 15, 2003
    Assignee: Paragon Trade Brands, Inc.
    Inventors: Carol L. Erdman, Harry J. Chmielewski
  • Patent number: 6545195
    Abstract: Absorbent articles, such as diapers, incontinence products, training pants, sanitary napkins, and the like, providing unexpectedly superior absorbency and methods of preparing the absorbent articles are disclosed. The absorbent articles comprise a substantially non-wicking layer disposed between a substantially impermeable backsheet and a permeable topsheet, said substantially non-wicking layer comprising foam having a density of no greater than about 0.01 g/cc and a compressional rigidity at about 10% strain of at least about 4 kPa.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: April 8, 2003
    Assignee: Paragon Trade Brands, Inc.
    Inventor: Harry J. Chmielewski
  • Publication number: 20030045848
    Abstract: Absorbent articles, such as diapers, incontinence products, training pants, sanitary napkins, and the like, providing unexpectedly superior absorbency and methods of preparing the absorbent articles are disclosed. The absorbent articles comprise a substantially non-wicking layer disposed between a substantially impermeable backsheet and a permeable topsheet, said substantially non-wicking layer comprising foam having a density of no greater than about 0.01 g/cc and a compressional rigidity at about 10% strain of at least about 4 kPa.
    Type: Application
    Filed: April 11, 2001
    Publication date: March 6, 2003
    Inventor: Harry J. Chmielewski
  • Patent number: 6459014
    Abstract: An absorbent article is provided which includes a pH control agent in an amount sufficient to maintain prolonged natural skin pH. The pH control agent can be applied in conjunction with a surfactant. Generally, the pH control agent and optional surfactant can be added to the topsheet, absorbent core, and/or any tissue layer included in the absorbent article. Particularly preferred pH control agents include citric acid and sodium citrate.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: October 1, 2002
    Assignee: Paragon Trade Brands, Inc.
    Inventors: Harry J. Chmielewski, Carol L. Erdman
  • Publication number: 20020138054
    Abstract: An absorbent article that provides leakage protection and/or skin protection, as well as methods for using and preparing same and novel compositions and composites for use in same, is disclosed. The absorbent article comprises a permeable topsheet; a substantially impermeable backsheet; an absorbent core positioned between said permeable topsheet and said substantially impermeable backsheet; and a hydrophobic composition selectively disposed on the absorbent article to contain leakage. The hydrophobic composition is disposed at one or more leak protection zones.
    Type: Application
    Filed: March 23, 2001
    Publication date: September 26, 2002
    Inventors: Carol L. Erdman, Harry J. Chmielewski
  • Publication number: 20020035353
    Abstract: An absorbent composition providing unexpectedly high fluid capacity with minimal gel-blocking, articles comprising the absorbent composition and methods of preparing the absorbent composition are disclosed. The absorbent composition optionally comprises a surface crosslinked polymer disbursed within a fibrous matrix of wettable fibers. The surface crosslinked polymer has an FVAUL value of at least about 60 cc after 10 minutes.
    Type: Application
    Filed: April 10, 2001
    Publication date: March 21, 2002
    Inventors: Harry J. Chmielewski, Andrew Baker
  • Patent number: 6068620
    Abstract: A disposable absorbent garment comprising a topsheet, a backsheet and an absorbent core disposed between the topsheet and backsheet is disclosed. The absorbent core is formed from at least one and preferably more than one laminate comprising three layers, including an upper layer, a lower layer and a central fibrous layer containing from about 50-95% by weight superabsorbent polymer. The upper and lower layers comprise tissue, airlaid fluff pulp or synthetic non-woven fibrous layers. The upper and lower layers together assist to maintain the integrity of the core during manufacture and in use, contain the superabsorbent polymer within the insult area of the garment and act to diffuse multiple insults so that gel blocking is minimized. The absorbent garment thus formed is very thin, lightweight and economical.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: May 30, 2000
    Assignee: Paragon Trade Brands
    Inventor: Harry J. Chmielewski
  • Patent number: 5891120
    Abstract: In an absorbent article comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent structure positioned between the topsheet and the backsheet, the absorbent structure includes an upper layer, a lower layer, and an elongate, absorbent core, which is formed from cellulosic fibers and from distributed particles of a superabsorbent polymer (SAP) and which has an elongate, central portion with an absorbency under load (AUL) not less than about 12 grams/gram. The absorbent core has a front end, a back end, and two ears projecting from the elongate, central portion, near the front end with the superabsorbent polymer (SAP) at an upper surface in essentially no concentration and at each of the ears in a concentration that is about one half of the concentration along the elongate, central portion.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: April 6, 1999
    Assignee: Paragon Trade Brands, Inc.
    Inventor: Harry J. Chmielewski
  • Patent number: 5281207
    Abstract: An absorbent product, for use in absorbent articles, comprising an absorbent layer and a wicking layer of densified hydrophilic material. The absorbent layer comprises resilient hydrophilic fibers and superabsorbent material. The absorbent layer includes at least one area comprising a bulky fibrous structure having high void regions of low fiber density randomly distributed in the structure.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: January 25, 1994
    Assignee: Paragon Trade Brands, Inc.
    Inventors: Harry J. Chmielewski, John R. Cook, David G. Unrau, Migaku Suzuki
  • Patent number: 5171391
    Abstract: An absorbent product, for use in absorbent articles, comprising an absorbent layer and a wicking layer of densified hydrophilic material. The absorbent layer comprises resilient hydrophilic fibers and superabsorbent material. The absorbent layer includes at least one area comprising a bulky fibrous structure having high void regions of low fiber density randomly distributed in the structure.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: December 15, 1992
    Assignee: Weyerhaeuser Company
    Inventors: Harry J. Chmielewski, John R. Cook, David G. Unrau, Migaku Suzuki