Patents by Inventor John Lawton

John Lawton 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).

  • Publication number: 20120178020
    Abstract: Waste reduction, including hazardous waste reduction in photoimaging processes can be accomplished by improving diffusional resolution of cationic curable compositions. The addition of fluorinated polymers including fluorinated surfactants provides improved diffusional resolution in cationic and/or radical based photoimaging formulations allowing for image accuracy improvements, and reduced product and process waste quantity and disposal cost. These fluorinated surfactants also allow for increased cure speed, and non-hazardous constituent formulations that result in less wasted material and time.
    Type: Application
    Filed: March 20, 2012
    Publication date: July 12, 2012
    Applicant: DSM IP ASSETS
    Inventors: John LAWTON, Jigeng Xu, John Southwell, Gordon Smith, Willem D. Weenink
  • Publication number: 20110143013
    Abstract: A high cysteine content zein composition is provided. A method and system for the manufacture of the bioproduct is likewise disclosed herein.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 16, 2011
    Inventor: John Lawton, JR.
  • Publication number: 20100201019
    Abstract: Waste reduction, including hazardous waste reduction in photoimaging processes can be accomplished by improving diffusional resolution of cationic curable compositions. The addition of fluorinated polymers including fluorinated surfactants provides improved diffusional resolution in cationic and/or radical based photoimaging formulations allowing for image accuracy improvements, and reduced product and process waste quantity and disposal cost. These fluorinated surfactants also allow for increased cure speed, and non-hazardous constituent formulations that result in less wasted material and time.
    Type: Application
    Filed: January 28, 2010
    Publication date: August 12, 2010
    Inventors: John Lawton, Jigeng Xu, John Southwell, Gordon Smith, Willem D. Weenink
  • Patent number: 7696260
    Abstract: A composition comprising a cationically-polymerizable compound, an iodonium-based cationic initiator, a sensitizer for said cationic initiator and an antioxidant selected from the group consisting of phenol antioxidants, lactone antioxidants, and combinations of these antioxidants is provided. The addition of this antioxidant to this composition contributes to the reduction of potential run-away reaction when it is exposed in-bulk to actinic radiation.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: April 13, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Kangtal Ren, John A. Lawton
  • Publication number: 20100001437
    Abstract: Waste reduction, including hazardous waste reduction in photoimaging processes can be accomplished by improving diffusional resolution of cationic curable compositions.
    Type: Application
    Filed: April 29, 2009
    Publication date: January 7, 2010
    Applicant: DSM IP ASSETS B.V.
    Inventors: John LAWTON, Jigeng XU, John SOUTHWELL, Gordon SMITH, Willem D. WEENINK
  • Publication number: 20090322831
    Abstract: An ink management system for supplying or receiving liquid at a controlled pressure, comprising: a closed reservoir; a weir disposed in the reservoir, configured to separate the reservoir into a first and a second chamber; the first chamber having an inlet for receiving liquid from a first remote location; and the weir being disposed such that the level of liquid in the first chamber can be maintained at a constant height; wherein the reservoir is sealed from the surrounding atmosphere and the system further comprises a pumped outlet disposed in the second chamber and arranged to remove liquid and gas contained within the reservoir.
    Type: Application
    Filed: September 21, 2007
    Publication date: December 31, 2009
    Applicant: Tonejet Limited
    Inventors: Neil Emerton, Andrew Benjamin David Brown, John Lawton Sharp
  • Publication number: 20080286450
    Abstract: Waste reduction, including hazardous waste reduction in photoimaging processes can be accomplished by improving diffusional resolution of cationic curable compositions. The addition of fluorinated polymers including fluorinated surfactants provides improved diffusional resolution in cationic and/or radical based photoimaging formulations allowing for image accuracy improvements, and reduced product and process waste quantity and disposal cost. These fluorinated surfactants also allow for increased cure speed, and non-hazardous constituent formulations that result in less wasted material and time.
    Type: Application
    Filed: January 26, 2007
    Publication date: November 20, 2008
    Applicant: DSM IP Assets B.V.
    Inventors: John Lawton, Jigeng Xu, John Southwell, Gordon Smith, Willem Weenink
  • Publication number: 20080118666
    Abstract: A radiation curable resin composition suitable for making three dimensional objects comprises at least one epoxy compound, and a cationic photoinitiator, wherein the resin composition has a first color or no color before cure and wherein a three dimensional object made from the resin by subjecting the resin to radiation shows a second color which is different from the color of the resin composition before cure.
    Type: Application
    Filed: November 19, 2007
    Publication date: May 22, 2008
    Inventors: Glen A. Thommes, John A. Lawton, Xiaorong You
  • Publication number: 20080064780
    Abstract: The invention relates to a radiation curable composition comprising relative to the total weight of the composition (A) 0-29 wt % of a cationically curable component having a linking aliphatic ester group, (B) 10-85 wt % of an epoxygroup containing component other than A, (C) 1-50 wt % of an oxetanegroup containing component, (D) 1-25 wt % of a multifunctional acrylate and a radical photoinitiator and a cationic photoinitiator.
    Type: Application
    Filed: November 9, 2007
    Publication date: March 13, 2008
    Applicant: DSM IP Assets B.V.
    Inventors: Jens Thies, Aylvin Dias, John Lawton, David Winmill, Jigeng Xu, Xiaorong You
  • Publication number: 20070228614
    Abstract: A composition comprising a cationically-polymerizable compound, an iodonium-based cationic initiator, a sensitizer for said cationic initiator and an antioxidant selected from the group consisting of phenol antioxidants, lactone antioxidants, and combinations of these antioxidants is provided. The addition of this antioxidant to this composition contributes to the reduction of potential run-away reaction when it is exposed in-bulk to actinic radiation.
    Type: Application
    Filed: March 30, 2006
    Publication date: October 4, 2007
    Applicant: DSM IP ASSETS B.V.
    Inventors: Kangtal Ren, John Lawton
  • Publication number: 20070154840
    Abstract: The invention relates to a radiation curable composition comprising relative to the total weight of the composition (A) 0-29 wt % of a cationically curable component having a linking aliphatic ester group, (B) 10-85 wt % of an epoxygroup containing component other than A, (C) 1-50 wt % of an oxetanegroup containing component, (D) 1-25 wt % of a multifunctional acrylate and a radical photoinitiator and a cationic photoinitiator.
    Type: Application
    Filed: January 8, 2007
    Publication date: July 5, 2007
    Applicant: DSM IP Assets B.V.
    Inventors: Jens Thies, Aylvin Dias, John Lawton, David Winmill, Jigeng Xu, Xiaorong You
  • Publication number: 20070054218
    Abstract: A radiation curable resin composition suitable for making three dimensional objects comprising at least one epoxy compound, a cationic photoinitiator, wherein the resin composition has a first color or no color before cure and wherein a three dimensional object made from the resin by subjecting the resin to radiation shows a second color which is different from the color of the resin composition before cure.
    Type: Application
    Filed: October 13, 2006
    Publication date: March 8, 2007
    Applicant: DSM IP Assets B.V.
    Inventors: Glen Thommes, John Lawton, Xiaorong You
  • Patent number: 7183040
    Abstract: The invention relates to a radiation curable composition comprising relative to the total weight of the composition (A) 0–29 wt % of a cationically curable component having a linking aliphatic ester group, (B) 10–85 wt % of an epoxygroup containing component other than A, (C) 1–50 wt % of an oxetanegroup containing component, (D) 1–25 wt % of a multifunctional acrylate and a radical photoinitiator and a cationic photoinitiator.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: February 27, 2007
    Assignee: DSM IP Assets B.V.
    Inventors: Jens C Thies, Aylvin J. A. A. Dias, John A. Lawton, David L. Winmill, Jigeng Xu, Xiaorong You
  • Publication number: 20060172230
    Abstract: Waste reduction, including hazardous waste reduction in photoimaging processes can be accomplished by improving diffusional resolution of cationic curable compositions. The addition of fluorinated polymers including fluorinated surfactants provides improved diffusional resolution in cationic and/or radical based photoimaging formulations allowing for image accuracy improvements, and reduced product and process waste quantity and disposal cost. These fluorinated surfactants also allow for increased cure speed, and non-hazardous constituent formulations that result in less wasted material and time.
    Type: Application
    Filed: February 2, 2005
    Publication date: August 3, 2006
    Applicant: DSM IP Assets B.V.
    Inventors: John Lawton, Jigeng Xu, John Southwell, Gordon Smith, Willem Weenink
  • Publication number: 20060154175
    Abstract: This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polypropylene articles.
    Type: Application
    Filed: February 18, 2004
    Publication date: July 13, 2006
    Inventors: John Lawton, Chander Chawla
  • Publication number: 20050165127
    Abstract: This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polyethylene articles.
    Type: Application
    Filed: December 31, 2003
    Publication date: July 28, 2005
    Applicant: DSM Desotech, Inc.
    Inventor: John Lawton
  • Publication number: 20050158660
    Abstract: This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polypropylene articles.
    Type: Application
    Filed: January 20, 2004
    Publication date: July 21, 2005
    Inventors: John Lawton, Chander Chawla
  • Publication number: 20050142479
    Abstract: The present invention relates to resin compositions suitable for making colored three dimensional objects and to methods for making colored three dimensional objects.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 30, 2005
    Inventors: Glen Thommes, John Lawton, Xiaorong You
  • Publication number: 20050074691
    Abstract: This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polypropylene articles.
    Type: Application
    Filed: February 18, 2004
    Publication date: April 7, 2005
    Inventors: John Lawton, Chander Chawla
  • Patent number: RE39106
    Abstract: A photohardenable composition especially suitable for use in solid imaging. The compositions are characterized by their improved photospeed in combined with excellent initial green strength. The compositions allows for the production of articles by solid imaging processing techniques that show little or no distortion, high accuracy, excellent clarity. The compositions are low in toxicity and have low sensitivity to water.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: May 23, 2006
    Assignee: DSM IP Assets B.V.
    Inventors: John A. Lawton, William J. Nebe, Glen A. Thommes, Jonathan V. Caspar