Patents by Inventor William Bela Haffner

William Bela Haffner 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: 6982231
    Abstract: An elastomeric, breathable laminate having enhanced breathability is formed by bonding a breathable, microporous, extendible/elastic film to a nonwoven facing material. The facing material can be necked to impart cross-directional stretchability. Once the film and the facing material are bonded together, the resulting laminate is stretched in one or more areas to impart higher breathability to selected areas of the laminate. The breathable laminate with enhanced breathability is particularly useful as an outer cover for diapers and other personal care products.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: January 3, 2006
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Duane Girard Uitenbroek, Susan Elaine Shawver, Paul Windsor Estey, Cindy Janja Blackstock, William Bela Haffner, Glynis Allicia Walton
  • Patent number: 6909028
    Abstract: A thermally stable microporous breathable film is provided comprising at least 35% filler, by weight of the filled-film, and a thermoplastic polymer blend of a first polyethylene polymer and a second polyethylene polymer. The first polyethylene polymer comprises 30%-70% by weight of the polymer blend and can have a density between about 0.86 g/cm3 and 0.89 g/cm3 and the second polyethylene polymer can have a density between about 0.90 g/cm3 and 0.92 g/cm3. The filled-film can be uniaxially or biaxially oriented to form a microporous film and/or film laminate having good body conformance and which retains a high WVTR at 37° C. and above.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: June 21, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Susan Elaine Shawver, Paul Windsor Estey, William Bela Haffner, Cindy Janja Blackstock, Glynis Allicia Walton, Duane Girard Uitenbroek
  • Patent number: 6824734
    Abstract: A blown film process for producing low gauge, latent elastic films with high cross-direction orientation includes preferentially regulating the temperature gradient of the film along the expansion length. The regulation of temperature along the bubble profile allows more effective “down gauging” of the film and improved melt strength of the hot film. The choice of raw materials is an important element in producing cross-direction-oriented, low gauge, latent elastic films. The method of this invention can be carried out as either a multiple-bubble process or a single-bubble process.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: November 30, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Lavada Campbell Boggs, Hannong Rhim, William Bela Haffner
  • Patent number: 6719742
    Abstract: Pattern embossed low gauge films are disclosed having multiple microporous film layers with distinct coloration, such as a dark colored layer and a light colored layer, wherein the color of the underlying film causes a visible color contrast only at the embossed regions and yet does not discolor the outer most layer. Also disclosed are film laminates and personal care articles incorporating such multilayer films.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: April 13, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ann Louise McCormack, Joy Francine Jordan, William Bela Haffner, Mark John Beitz, Hong Y. Lin
  • Patent number: 6682803
    Abstract: A breathable multilayer film including a breathable core layer and one or two skin layers is prepared by providing a core layer mixture of a thermoplastic polymer and a particulate filler, providing a skin layer mixture of at least two incompatible polymers, coextruding the core and skin layer mixtures to form a multilayer film, and stretching the multilayer film to cause void formation in the core layer and crack formation in the one or two skin layers. By forming cracks in the skin layers during stretching, the skin layers can perform dual functions of alleviating die build-up of filler from the core layer during coextrusion, and bonding the film to a substrate subsequent to coextrusion, without unduly hindering the moisture vapor transmission rate of the film or laminate product. The breathable film, and laminates including the film, are useful in a wide variety of personal care absorbent articles, medical garments, and other products.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: January 27, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ann Louise McCormack, William Bela Haffner
  • Patent number: 6589638
    Abstract: Disclosed is a composite material adapted for mechanical fastener use as the loop component complementary to a hook component. The composite material is made by laminating a film with an amorphous polymer layer to a prebonded nonwoven web, using a bond pattern different from the pattern on the nonwoven so as to provide loose filaments or fibers between the laminate bond points. Desirably, the composite also has a WVTR of at least about 100 g/m2/24 hours and a hydrohead of at least about 50 mbar. In use as a component of a disposable personal care product such as a disposable diaper, the loop fastener component may be substantially the entire backing to provide comfort, protection and highly variable fit.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: July 8, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ann Louise McCormack, William Bela Haffner
  • Publication number: 20030068951
    Abstract: A blown film process for producing low gauge, latent elastic films with high cross-direction orientation includes preferentially regulating the temperature gradient of the film along the expansion length. The regulation of temperature along the bubble profile allows more effective “down gauging” of the film and improved melt strength of the hot film. The choice of raw materials is an important element in producing cross-direction-oriented, low gauge, latent elastic films. The method of this invention can be carried out as either a multiple-bubble process or a single-bubble process.
    Type: Application
    Filed: October 9, 2001
    Publication date: April 10, 2003
    Inventors: Lavada Campbell Boggs, Hannong Rhim, William Bela Haffner
  • Publication number: 20020187304
    Abstract: A breathable multilayer film including a breathable core layer and one or two skin layers is prepared by providing a core layer mixture of a thermoplastic polymer and a particulate filler, providing a skin layer mixture of at least two incompatible polymers, coextruding the core and skin layer mixtures to form a multilayer film, and stretching the multilayer film to cause void formation in the core layer and crack formation in the one or two skin layers. By forming cracks in the skin layers during stretching, the skin layers can perform dual functions of alleviating die build-up of filler from the core layer during coextrusion, and bonding the film to a substrate subsequent to coextrusion, without unduly hindering the moisture vapor transmission rate of the film or laminate product. The breathable film, and laminates including the film, are useful in a wide variety of personal care absorbent articles, medical garments, and other products.
    Type: Application
    Filed: August 27, 1999
    Publication date: December 12, 2002
    Inventors: ANN LOUISE MCCORMACK, WILLIAM BELA HAFFNER
  • Patent number: 6277479
    Abstract: Breathable microporous films are provided having controlled regional breathability with thick high WVTR regions and thinner low WVTR regions. The zoned breathable microporous films can be made by selectively applying heat and/or pressure to specific regions the microporous film such as by feeding a microporous film through a pair of heated nip rollers with one of the rolls having a raised surface area or by applying a focused stream of hot air. Monolayer microporous films and multilayer films having at least one microporous layer can be treated to impart zoned breathability to the film.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: August 21, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Stephen Michael Campbell, Howard Martin Welch, Larry Ned Barnett, Jr., Carol Ann Blaney, David Arthur Fell, Sarah Jane Marie Freiburger, William Bela Haffner, Marianne Keevill Leick, Ann Louise McCormack, Douglas H. Tulley, Jr.
  • Patent number: 6238767
    Abstract: A composite material adapted for barrier garment applications is made by laminating a film with an amorphous polymer layer to a prebonded nonwoven web under conditions producing laminate bonds corresponding to the prebond locations, and unbonded areas between the bonds while maintaining constant film thickness. The composite has enhanced resistance to viral penetration for use as a surgical gown material, for example, and also desirably has a MVTR of at least about 300 g/m2/24 hours and a hydrohead of at least about 50 mbar. In use as a component of a protective apparel such as a surgical gown or drape, the composite provides comfort and protection with reduced risk of film damage.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: May 29, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ann Louise McCormack, William Bela Haffner
  • Patent number: 6096668
    Abstract: An elastic liquid impermeable laminate is disclosed having an extensible barrier film; an 8 g/m.sup.2 to 100 g/m.sup.2 elastomeric nonwoven web comprising fibers of low density polyethylene having a density less than 0.89 g/cm.sup.3 ; and an extensible cloth-like outer layer, such as a nonwoven web of spunbonded fibers. The barrier laminate can be laminated by thermal point bonding to create patterns having improved loft, excellent hand and while achieving peel strengths in excess of 500 grams.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: August 1, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Frank Paul Abuto, William Bela Haffner, Joy Francine Jordan, Ann Louise McCormack, Duane Girard Uitenbroek
  • Patent number: 6045900
    Abstract: A breathable barrier laminate is disclosed having a first film layer comprising a microporous breathable barrier film; a second film layer comprising a breathable filled film which comprises about 50% to about 70% by weight filler and an amorphous polymer such as an elastomeric ethylene polymer having a density less than 0.89 g/cm.sup.3 ; and a third fibrous layer comprising a breathable outer layer, such as a nonwoven web of spunbonded fibers. The multiple layers can be thermally laminated wherein laminate has a peel strength in excess of 200 grams and a WVTR in excess of 300 g/m.sup.2 /day.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: April 4, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: William Bela Haffner, Ann Louise McCormack
  • Patent number: 5997981
    Abstract: A composite material adapted for mechanical fastener use as a loop fastener component with a complementary hook component is made by laminating a film with an amorphous polymer layer to a prebonded nonwoven web under conditions producing laminate bonds corresponding to the prebond locations, and loose filaments or fibers between the bonds. The composite also desirably has a MVTR of at least about 100 g/m.sup.2 /24 hours and a hydrohead of at least about 50 mbar. In use as a component of a disposable personal care product such as a disposable diaper, the loop fastener component may be substantially the entire backing, providing comfort, protection and highly variable fit.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: December 7, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ann Louise McCormack, William Bela Haffner, Wanda Walton Jackson
  • Patent number: 5853881
    Abstract: A composite elastic material is provided having improved hysteresis comprising a layer of an elastic material bonded to a layer of nonelastic material at least one side. The elastic material layer is made from a blend of a narrow polydispersity number polymer and a conventional elastomer, and the blend is essentially free of low molecular weight polyethylene processing aids. The composite elastic material laminate should have a hysteresis at least 15 percent better than a similar laminate made without the narrow polydispersity number elastomer but with the processing aid.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: December 29, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Paul Windsor Estey, William Bela Haffner, Jon Edward Tinsley, Susan Elaine Shawver, Stephen Clark Smith
  • Patent number: 5789065
    Abstract: Transversely stretchable elastic laminated fabric with cloth-like facings was made by a two-step process. In the first step an inelastic laminate was made by continuously extruding an elastomer sheet between two plies of a fibrous sheet and joining the plies by applying pressure on them between a closed gap niproll assembly. Two longitudinal slits were made into the laminate. Then the rolls of inelastic laminate so made were taken to an oven and the laminate was unwound and pulled through the oven at an elevated temperature, while tension on the web was increased until the slits necked. The necked laminate was wound up on a takeup roll. When samples were unwound, surprisingly they did not grow in width, and they showed good CD-elasticity (elongation and springback). Breathability of the laminate was superior to the laminate formed using an open niproll assembly gap.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: August 4, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: William Bela Haffner, Michael Tod Morman, Jack Draper Taylor, Jon Edward Tinsley
  • Patent number: 3988410
    Abstract: Lubricants for the production of net-like products from nylon and polytetramethylene terephthalate are disclosed. The lubricants comprise polyolefin with a specific melt index, said polyolefins being homopolymers of olefins or copolymers of two or more olefins.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: October 26, 1976
    Assignee: Conwed Corporation
    Inventors: Ronald Leslie Larsen, William Bela Haffner