Patents by Inventor Thomas Wittkopf

Thomas Wittkopf 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: 11242470
    Abstract: The invention includes a hot melt adhesive composition including an olefin polymer and a high melt point hydrocarbon tackifying agent, such compositions unexpectedly provide improved bonding between the layers found in a disposable absorbent article. In particular, such compositions improve the bond between the nonwoven top sheet and the acquisition distribution layer.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: February 8, 2022
    Assignee: H.B. Fuller Company
    Inventors: Steven R. Vaughan, Kevin P. Davis, Thomas Wittkopf, Peter Remmers, Seth Urtel
  • Patent number: 10350325
    Abstract: Disclosed is a disposable absorbent article including two substrates; and an adhesive composition including a first polymer that is propylene-based and has a Mw of no greater than about 75,000, and a second polymer that is propylene-based and has a Mw of at least about 100,000, where the adhesive composition is used for at least two applications in the disposable absorbent article and is delivered via a molten bulk tank.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: July 16, 2019
    Assignee: H.B. Fuller Company
    Inventors: Peter Remmers, Thomas Wittkopf, Ursula Ruediger, Carlos Briseno
  • Publication number: 20190161649
    Abstract: The invention includes a hot melt adhesive composition including an olefin polymer and a high melt point hydrocarbon tackifying agent, such compositions unexpectedly provide improved bonding between the layers found in a disposable absorbent article. In particular, such compositions improve the bond between the nonwoven top sheet and the acquisition distribution layer.
    Type: Application
    Filed: November 30, 2018
    Publication date: May 30, 2019
    Inventors: Steven R. Vaughan, Kevin P. Davis, Thomas Wittkopf, Peter Remmers, Seth Urtel
  • Patent number: 10265225
    Abstract: This invention claims a disposable article including at least two bonded regions, one of the regions has elastic properties; the other region is different from the first.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: April 23, 2019
    Assignee: H.B. Fuller Company
    Inventors: Kristy J. Beckman, David B. Malcolm, Kevin P. Davis, Yuanyan Gu, Peter Remmers, Thomas Wittkopf, Mark S. Kroll
  • Publication number: 20160121014
    Abstract: The invention relates to a disposable absorbent article and an adhesive composition including a first polymer that is propylene-based and has a Mw of no greater than about 75,000, and a second polymer selected from a group including propylene based polymers with a Mw of at least about 100,000 and styrene block copolymers with a styrene content of no greater than about 20% where the adhesive composition is useful for elastic attachment applications.
    Type: Application
    Filed: May 29, 2014
    Publication date: May 5, 2016
    Inventors: Peter Remmers, Thomas Wittkopf, Ursula Ruediger, Steve R. Vaughan
  • Publication number: 20160067117
    Abstract: This invention claims a disposable article including at least two bonded regions, one of the regions has elastic properties; the other region is different from the first.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 10, 2016
    Inventors: Kristy J. Beckman, David B. Malcolm, Kevin P. Davis, Yuanyan Gu, Peter Remmers, Thomas Wittkopf, Mark S. Kroll
  • Publication number: 20160068721
    Abstract: This invention claims hot melt adhesive compositions that can be used to form elastic composites that are useful in disposable absorbent articles. The compositions have good elastic recovery and high peel adhesion at a viscosity of less than about 15,000 cps at 177° C. (350° F.). The low viscosity makes it possible to apply the hot melt adhesive at a high line speed and target application to only those areas requiring elastic performance.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 10, 2016
    Inventors: David B. Malcolm, Kevin P. Davis, Yuanyan Gu, Peter Remmers, Thomas Wittkopf, Kristy J. Beckman, Mark S. Kroll
  • Publication number: 20140358100
    Abstract: Disclosed is a disposable absorbent article comprising two substrates; and an adhesive composition including a first polymer that is propylene-based and has a Mw of no greater than about 75,000, and a second polymer that is propylene-based and has a Mw of at least about 100,000, where the adhesive composition is used for at least two applications in the disposable absorbent article and is delivered via a molten bulk tank.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Inventors: Peter Remmers, Thomas Wittkopf, Ursula Ruediger, Carlos Briseno
  • Patent number: 7699826
    Abstract: This invention relates to a non-contact coating method for producing a continuous coating and articles constructed therefrom. This invention further relates to a method for producing a textile material with a moisture-impermeable barrier layer and to a method for producing a moisture-absorbing article of hygiene which has such a barrier layer. This invention particularly relates to a textile material and hygienic disposable articles comprising a body fluid impermeable barrier layer produced from said coating method. Preferably, the thermoplastic composition used in the method for producing the barrier layer exhibits certain rheological characteristics.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: April 20, 2010
    Assignee: H. B. Fuller Company
    Inventors: Harald Werenicz, Thomas Wittkopf, Gerhard Voss, Peter Remmers, Mark G. Katsaros, Robert G. Polance, II, Mark S. Kroll
  • Patent number: 7563479
    Abstract: This invention relates to a non-contact coating method for producing a continuous coating and articles constructed therefrom. This invention further relates to a method for producing a textile material with a moisture-impermeable barrier layer and to a method for producing a moisture-absorbing article of hygiene which has such a barrier layer. This invention particularly relates to a textile material and hygienic disposable articles comprising a body fluid impermeable barrier layer produced from said coating method. Preferably, the thermoplastic composition used in the method for producing the barrier layer exhibits certain rheological characteristics.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: July 21, 2009
    Assignee: H.B. Fuller Licensing & Financing, Inc
    Inventors: Harald Werenicz, Thomas Wittkopf, Gerhard Voss, Peter Remmers, Mark G. Katsaros, Robert G. Polance, II, Mark S. Kroll
  • Publication number: 20060165886
    Abstract: This invention relates to a non-contact coating method for producing a continuous coating and articles constructed therefrom. This invention further relates to a method for producing a textile material with a moisture-impermeable barrier layer and to a method for producing a moisture-absorbing article of hygiene which has such a barrier layer. This invention particularly relates to a textile material and hygienic disposable articles comprising a body fluid impermeable barrier layer produced from said coating method. Preferably, the thermoplastic composition used in the method for producing the barrier layer exhibits certain rheological characteristics.
    Type: Application
    Filed: March 21, 2006
    Publication date: July 27, 2006
    Inventors: Harald Werenicz, Thomas Wittkopf, Gerhard Voss, Peter Remmers, Mark Katsaros, Robert Polance, Mark Kroll
  • Patent number: 7078075
    Abstract: This invention relates to a non-contact coating method for producing a continuous coating and articles constructed therefrom. This invention further relates to a method for producing a textile material with a moisture-impermeable barrier layer and to a method for producing a moisture-absorbing article of hygiene which has such a barrier layer. This invention particularly relates to a textile material and hygienic disposable articles comprising a body fluid impermeable barrier layer produced from said coating method. Preferably, the thermoplastic composition used in the method for producing the barrier layer exhibits certain rheological characteristics.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: July 18, 2006
    Assignee: H.B. Fuller Licensing & Financing Inc.
    Inventors: Harald Werenicz, Thomas Wittkopf, Gerhard Voss, Peter Remmers, Mark G. Katsaros, Robert G. Polance, II
  • Publication number: 20030208172
    Abstract: This invention relates to a non-contact coating method for producing a continuous coating and articles constructed therefrom. This invention further relates to a method for producing a textile material with a moisture-impermeable barrier layer and to a method for producing a moisture-absorbing article of hygiene which has such a barrier layer. This invention particularly relates to a textile material and hygienic disposable articles comprising a body fluid impermeable barrier layer produced from said coating method. Preferably, the thermoplastic composition used in the method for producing the barrier layer exhibits certain rheological characteristics.
    Type: Application
    Filed: May 1, 2003
    Publication date: November 6, 2003
    Inventors: Harald Werenicz, Thomas Wittkopf, Gerhard Voss, Peter Remmers, Mark G. Katsaros, Robert G. Polance, Mark S. Kroll
  • Patent number: 6583332
    Abstract: This invention relates to a non-contact coating method for producing a continuous coating and articles constructed therefrom. This invention further relates to a method for producing a textile material with a moisture-impermeable barrier layer and to a method for producing a moisture-absorbing article of hygiene which has such a barrier layer. This invention particularly relates to a textile material and hygienic disposable articles comprising a body fluid impermeable barrier layer produced from said coating method. Preferably, the thermoplastic composition used in the method for producing the barrier layer exhibits certain rheological characteristics.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: June 24, 2003
    Assignee: H. B. Fuller Licensing & Financing Inc.
    Inventors: Harald Werenicz, Thomas Wittkopf, Gerhard Voss, Peter Remmers, Mark G. Katsaros, Robert G. Polance, II, Mark S. Kroll
  • Patent number: 6430898
    Abstract: The present inventors have discovered that an easily measured property, namely complex viscosity, directly relates to physical film compatibility and have further identified a class of polyolefin materials, which are particularly amenable to exhibiting such properties. It is important to note that this discovery assumes that the film material is first chemically compatible with the thermoplastic composition to be packaged. The invention is particularly useful for low viscosity thermoplastic compositions having a Brookfield viscosity of less than about 10,000 cPs at 350° F., such as pressure sensitive hot melt adhesive compositions which are typically applied by melting the packaged adhesive composition in a melt tank wherein the melt tank lacks an active mixing means.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: August 13, 2002
    Assignee: H.B. Fuller Licensing & Financing, Inc.
    Inventors: Peter Remmers, Joachim Baumung, Michelle M. Chanak, Kevin W. McKay, Thomas Wittkopf
  • Patent number: 6120887
    Abstract: This invention relates to a non-contact coating method for producing a continuous coating and articles constructed therefrom. This invention further relates to a method for producing a textile material with a moisture-impermeable barrier layer and to a method for producing a moisture-absorbing article of hygiene which has such a barrier layer. This invention particularly relates to a textile material and hygienic disposable articles comprising a body fluid impermeable barrier layer which can be produced from a non-contact coating method. Preferably, the thermoplastic composition used for producing the barrier layer exhibits certain rheological characteristics and comprises at least one homogeneous linear or substantially linear interpolymer of ethylene with at least one C.sub.3 -C.sub.20 alpha-olefin, further characterized by each said interpolymer having a polydispersity less than about 2.5.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: September 19, 2000
    Assignee: H. B. Fuller Licensing & Financing, Inc.
    Inventors: Harald Werenicz, Thomas Wittkopf, Gerhard Voss, Peter Remmers, Mark G. Katsaros, Robert G. Polance, II, Mark S. Kroll, Wendy Hoenig, Selim Yalvac, Kalyan Sehanobish, Teresa Karjala, Deepak Parikh, David C. Kelley
  • Patent number: 5827252
    Abstract: This invention relates to a non-contact coating method for producing a continuous coating and articles constructed therefrom. This invention further relates to a method for producing a textile material with a moisture-impermeable barrier layer and to a method for producing a moisture-absorbing article of hygiene which has such a barrier layer. This invention particularly relates to a textile material and hygienic disposable articles comprising a body fluid impermeable barrier layer produced from said coating method. Preferably, the thermoplastic composition used in the method for producing the barrier layer exhibits certain rheological characteristics.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: October 27, 1998
    Assignee: H.B. Fuller Licensing & Financing, Inc.
    Inventors: Harald Werenicz, Thomas Wittkopf, Gerhard Voss, Peter Remmers, Mark G. Katsaros, Robert Gordon Polance, Mark S. Kroll