Patents by Inventor Richard KNOWLSON

Richard KNOWLSON 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: 11622919
    Abstract: A water disposable nonwoven web having good MD and CD strength is provided. The nonwoven web is obtained by hydroentangling an airlaid web of no less than 50% by weight of natural cellulose fibers having a fiber length of no more than 3.5 mm and no more than 50% by weight staple fibers having a fiber length of no less than 8.0 mm. The nonwoven web contains no adhesive, binder or thermal bonding fibers. Products containing the disposable nonwoven web meet municipal guidelines for flushability.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 11, 2023
    Assignee: Jacob Holm & Sons AG
    Inventors: Richard Knowlson, Eric Mariani, Katherine Dyrmose Petersen
  • Publication number: 20200297554
    Abstract: A non-woven functional core cover for use in combination with an absorbent core, where said functional core cover comprises at least a first fraction comprising lyocell fibres, and characterised in that a majority of said fibres are oriented in the same direction. Thus, the absorbent core cover may be considered an absorbent article component. Thereby, a functional core cover having improved wicking properties and improved wet integrity is realised, the advantages allowing reducing the amount of fluff used in the mix with SAP. A reduction of material used in the absorbent core improves the feeling of wearing the absorbent product, e.g. a baby diaper, which in turn facilitate the movement of the baby. The wicking properties cause liquid to be distributed better across the surface of the core cover, such that more of the absorbent core is exposed to the expelled liquid.
    Type: Application
    Filed: November 2, 2018
    Publication date: September 24, 2020
    Inventors: Katharine Dyrmose Petersen, Richard Knowlson
  • Patent number: 10415166
    Abstract: A method to prepare nonwoven webs suitable for use as an industrial wipe which have good MD and CD strength is provided. The method includes hydroentangling an airlaid web of natural cellulose fibers having a fiber length of no more than 3.5 mm, bonding fibers having a fiber length of from 6.0 to 12.0 mm and optionally, manmade fibers having a fiber length of from 6.0 to 12.0 mm. The airlaid web is a homogeneous mat of the natural cellulose fibers, the optional manmade fibers and the bonding fibers and is not laid on a precursor web. No non-fiber adhesive or binder is utilized. The airlayering and hydroentangling are conducted in a continuous operation. The method to manufacture the nonwoven web may include an embossing or crepeing operation.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: September 17, 2019
    Assignee: Jacob Holm & Sons AG
    Inventors: Richard Knowlson, Eric Mariani, Geoffrey William Collins
  • Publication number: 20180326699
    Abstract: A method to prepare nonwoven webs suitable for use as an industrial wipe which have good MD and CD strength is provided. The method includes hydroentangling an airlaid web of natural cellulose fibers having a fiber length of no more than 3.5 mm, bonding fibers having a fiber length of from 6.0 to 12.0 mm and optionally, manmade fibers having a fiber length of from 6.0 to 12.0 mm. The airlaid web is a homogeneous mat of the natural cellulose fibers, the optional manmade fibers and the bonding fibers and is not laid on a precursor web. No non-fiber adhesive or binder is utilized. The airlayering and hydroentangling are conducted in a continuous operation. The method to manufacture the nonwoven web may include an embossing or crepeing operation.
    Type: Application
    Filed: May 15, 2017
    Publication date: November 15, 2018
    Applicant: Jacob Holm & Sons AG
    Inventors: Richard KNOWLSON, Eric MARIANI, Geoffrey William COLLINS
  • Publication number: 20180251925
    Abstract: A hydroentangled nonwoven fibrous composition, comprising as a hydroentangled web from 60 to 90% by weight of defibrated or refined natural cellulose fibers; and from 10 to 40% by weight of manmade sustainable fibers and a method to prepare the fibrous composition is provided. The nonwoven fibrous hydroentangled web comprises no binder, adhesive or thermal bonding fiber and has sufficient wet strength to be usable as a wipe and water dispersibility to be suitable as a flushable product for disposal in a municipal sewer system. A disposable wipe containing the hydroentangled nonwoven fibrous composition is also provided.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 6, 2018
    Applicant: Jacob Holm & Sons AG
    Inventors: Richard KNOWLSON, Eric MARIANI
  • Publication number: 20160228337
    Abstract: A water disposable nonwoven web having good MD and CD strength is provided. The nonwoven web is obtained by hydroentangling an airlaid web of no less than 50% by weight of natural cellulose fibers having a fiber length of no more than 3.5 mm and no more than 50% by weight staple fibers having a fiber length of no less than 8.0 mm. The nonwoven web contains no adhesive, binder or thermal bonding fibers. Products containing the disposable nonwoven web meet municipal guidelines for flushability.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Applicant: Jacob Holm & Sons AG
    Inventors: Richard KNOWLSON, Eric Mariani, Katherine Dyrmose Petersen
  • Patent number: 9394637
    Abstract: A method to prepare nonwoven webs which have good MD and CD strength, and are water disposable is provided. The method includes hydroentangling an airlaid web of no less than 50% by weight of natural cellulose fibers having a fiber length of no more than 3.5 mm and no more than 50% by weight staple fibers having a fiber length of no less than 8.0 mm. The airlaid web is not laid on a precursor web and no adhesive, binder or thermal bonding fibers are utilized. The airlayering and hydroentangling are conducted in a continuous operation. Products may be obtained according to the method of this invention that meet municipal guidelines for flushability.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: July 19, 2016
    Assignee: Jacob Holm & Sons AG
    Inventors: Richard Knowlson, Eric Mariani, Katherine Dyrmose Petersen
  • Publication number: 20140202494
    Abstract: Provided is a nonwoven surface preparation or cleaning material comprising melamine fibers and a process for preparing the material. The nonwoven material, in one embodiment, comprises from 20 to 100% by weight melamine fibers. Other synthetic and natural fibers can be used in conjunction with the melamine fibers. However, it is the melamine fibers which are important, and the actual amount can be varied based on the nature of the surface to be cleaned, cleaning difficulty and material cost.
    Type: Application
    Filed: January 22, 2014
    Publication date: July 24, 2014
    Applicants: JACOB HOLM & SONS, AG, BASOFIL, LLC
    Inventors: Paul Leon LATTEN, Richard KNOWLSON
  • Publication number: 20140170402
    Abstract: A method to prepare nonwoven webs which have good MD and CD strength, and are water disposable is provided. The method includes hydroentangling an airlaid web of no less than 50% by weight of natural cellulose fibers having a fiber length of no more than 3.5 mm and no more than 50% by weight staple fibers having a fiber length of no less than 8.0 mm. The airlaid web is not laid on a precursor web and no adhesive, binder or thermal bonding fibers are utilized. The airlayering and hydroentangling are conducted in a continuous operation. Products may be obtained according to the method of this invention that meet municipal guidelines for flushability.
    Type: Application
    Filed: July 16, 2013
    Publication date: June 19, 2014
    Applicant: Jacob Holm & Sons AG
    Inventors: Richard KNOWLSON, Eric MARIANI, Katherine Dyrmose PETERSEN