Patents Assigned to EAM Corporation
  • Patent number: 11432969
    Abstract: The present invention is directed to a method of forming a laminate absorbent structure, and a resulting package containing a single continuous running web of the laminate material. Notably, formation of the material is effected by blending a curtain of adhesive fibers with a curtain of particulate material, and depositing the mixture on a moving substrate, preferably provided in the form of a tissue layer. A second substrate, also preferably comprising a tissue layer, is applied on top of the deposited mixture, and pressure applied to form the laminated structure. Notably, attendant to packaging of the laminated material, adjacent layers of the material tend to nest into one another, to form a sandwich in which the density of the material in the package is more than 1.5 times the density of the material after its removal from the package.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: September 6, 2022
    Assignee: EAM Corporation
    Inventors: Paul M. Ducker, Steven S. Harlen
  • Patent number: 10813799
    Abstract: The present invention relates to a layered absorbent structure in the form of a laminate including liquid storage layers comprising particulate superabsorbent material and adhesive fibers. Notably, the absorbent structure includes a wicking layer positioned between the liquid storage layers, with the wicking layer desirably acting to improve fluid spreading and rewet performance of the absorbent structure. The wicking layer preferably comprises airlaid cellulosic fibrous material such as wood pulp, and may optionally include superabsorbent polymer. A bonding pattern of the wicking layer is oriented to enhance wicking and rewet performance.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: October 27, 2020
    Assignee: EAM CORPORATION
    Inventor: Paul M. Ducker
  • Patent number: 10806643
    Abstract: The present invention relates to an absorbent laminate structure, and disposable absorbent article incorporating the structure, wherein first and second absorbent matrices comprising particulate superabsorbent polymeric material and filamentary adhesive are arranged between two outer substrate layers. The relatively porous, intermediate or central substrate layer, positioned between the absorbent matrices, promotes liquid transport within the laminate structure.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: October 20, 2020
    Assignee: EAM CORPORATION
    Inventor: Paul M. Ducker
  • Publication number: 20140276510
    Abstract: An absorbent structure including a dryness layer laminate is disclosed, with the structure suitable for use in disposable absorbent products such as for infant or incontinence care. The dryness layer laminate is positioned adjacent an associated absorbent core, between the absorbent core and the wearer, for enhancing surface dryness and comfort for the wearer. The dryness layer laminate comprises adhesive fibers or filaments, and particulate superabsorbent, and is configured to permit liquid to pass through the laminate to the associated absorbent core, while acting to remove liquid from the surface of the absorbent structure positioned adjacent to the wearer.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: EAM Corporation
    Inventors: Paul Ducker, Harry J. Chmielewski
  • Publication number: 20140276509
    Abstract: An absorbent structure including a composite absorbent laminate is disclosed, with the structure suitable for use in disposable absorbent products such as for infant or incontinence care. Notably the laminate comprises discrete acquisition cells each comprising particles of preferably cellulosic absorbent material. The absorbent structure further comprises particulate superabsorbent polymer which can either be blended with the particulate discrete acquisition cells in the absorbent laminate, or provided in a separate absorbent layer of the absorbent structure. The discrete acquisition cells desirably generate free volume for rapid capillary absorption in an ultra-thin absorbent structure.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: EAM Corporation
    Inventors: Paul M. Ducker, Harry J. Chmielewski
  • Patent number: 8202609
    Abstract: An absorbent material for use in a disposable absorbent product exhibiting enhanced wet strength characteristics includes a blend of cellulosic fibrous material and superabsorbent polymeric material, with a wax applied to the blend in a preferably discontinuous or non-uniform distribution for enhancing wet strength characteristics of the material, without unacceptably diminishing its absorbency. Notably, the absorbent material includes regions of relatively high densification, which can exist about particles of superabsorbent material, with application of wax in a molten form resulting in the spontaneous flow and migration of the wax to the regions of higher densification. The material can be formed with a pattern of regions of relatively high and low densification, with the wax preferentially distributed in those regions of high densification.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: June 19, 2012
    Assignee: EAM Corporation
    Inventors: Paul M. Ducker, Steven S. Harlen, David S. Varney
  • Publication number: 20120148821
    Abstract: The present invention is directed to a method of forming a laminate absorbent structure, and a resulting package containing a single continuous running web of the laminate material. Notably, formation of the material is effected by blending a curtain of adhesive fibers with a curtain of particulate material, and depositing the mixture on a moving substrate, preferably provided in the form of a tissue layer. A second substrate, also preferably comprising a tissue layer, is applied on top of the deposited mixture, and pressure applied to form the laminated structure. Notably, attendant to packaging of the laminated material, adjacent layers of the material tend to nest into one another, to form a sandwich in which the density of the material in the package is more than 1.5 times the density of the material after its removal from the package.
    Type: Application
    Filed: February 21, 2012
    Publication date: June 14, 2012
    Applicant: EAM CORPORATION
    Inventors: Paul M. Ducker, Steven S. Harlen