Patents by Inventor Constantinus Simon Maria Liebregts

Constantinus Simon Maria Liebregts 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: 8865295
    Abstract: The invention provides a process for making a multilayer structure with a printed pattern by providing a film substrate having a crystalline organic compound layer, wherein the substrate optionally has a metal or metaloxide layer between the film substrate and the organic compound layer; applying a printed pattern via a plurality of printing rolls wherein the following steps are performed: optionally, applying as a first layer a primer over the whole surface, applying one or more ink layers on the film to obtain a printed pattern, and optionally, applying a cover varnish to obtain a film substrate with a crystalline organic compound layer and a printed pattern. The invention further relates to a laminate comprising a multilayer structure and a plastic film; the laminate preferably comprises a primer substantially covering the whole surface of the organic compound layer, on which primer the print is present.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: October 21, 2014
    Assignee: DSM Assets B.V.
    Inventors: Shahab Jahromi, Constantinus Simon Maria Liebregts, Karel Franciscus Hubertus Bonekamp
  • Patent number: 8318276
    Abstract: The invention relates to a substrate comprising a layer of crystalline triazine with a protective compound having a retention of oxygen barrier at 85% RH of about 50% or better. The protective compound preferably contains an azine-formaldehyde or phenol-formaldehyde resin, preferably with an hydroxy-functional polymer, and is cured.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: November 27, 2012
    Assignee: DSM IP Assets B.V.
    Inventors: Shahab Jahromi, Constantinus Simon Maria Liebregts
  • Publication number: 20110177327
    Abstract: The invention relates to the use of melam deposited on a substrate, in applications requiring high humidity resistance, such as further processing comprising retort or metal deposition, or applications such as solar or display. Melam to melamine ratio (w/w) in the barrier layer is in the range from 3:1 to 50:1.
    Type: Application
    Filed: July 7, 2009
    Publication date: July 21, 2011
    Inventors: Shahab Jahromi, Constantinus Simon Maria Liebregts
  • Publication number: 20110171439
    Abstract: The invention relates to a laminate comprising two plastic films and (optionally in between a metal or metal oxide layer and) a layer of an organic compound other than triazine, the laminate having a lamination strength of about 2 N/inch or more as measured in a 90 degree tensile testing at 30 mm/min. The invention further relates to a composite layer, suitable for said laminate. The invention further relates to laminate having a crystalline organic compound other than triazine to improve the barrier properties.
    Type: Application
    Filed: July 7, 2009
    Publication date: July 14, 2011
    Inventors: Shahab Jahromi, Constantinus Simon Maria Liebregts
  • Publication number: 20100178440
    Abstract: The invention relates to a substrate comprising a layer of crystalline triazine with a protective compound having a retention of oxygen barrier at 85% RH of about 50% or better. The protective compound preferably contains an azine-formaldehyde or phenol-formaldehyde resin, preferably with an hydroxy-functional polymer, and is cured.
    Type: Application
    Filed: January 4, 2008
    Publication date: July 15, 2010
    Inventors: Shahab Jahromi, Constantinus Simon Maria Liebregts
  • Publication number: 20100047534
    Abstract: The invention relates to a laminate comprising two plastic films and in between a crystalline triazine layer, the laminate having a lamination strength of about 2 N/inch or more as measured in a 90 degree tensile testing at 30 mm/min. The laminate can be used for packaging, such as carton based fruit juice and diary products packaging; retortable packaging, displays and the like.
    Type: Application
    Filed: January 14, 2008
    Publication date: February 25, 2010
    Inventors: Shahab Jahromi, Constantinus Simon Maria Liebregts
  • Patent number: 7595408
    Abstract: The present invention relates to methods for the preparation of diastereomerically pure (3R,3aS,6aR) hexahydro-furo[2,3-b]furan-3-ol as well as a novel intermediate, (3aR,4S,6aS) 4-methoxy-tetrahydro-furo[3,4-b]furan-2-one for use in said methods. More in particular the invention relates to a stereoselective method for the preparation of diastereomerically pure (3R,3aS,6aR) hexahydro-furo[2,3-b]furan-3-ol, as well as methods for the crystallization of (3aR,4S,6aS) 4-methoxy-tetrahydro-furo[3,4-b]furan-2-one and for the epimerization of (3aR,4R,6aS) 4-methoxy-tetrahydro-furo[3,4-b]-furan-2-one to (3aR,4S,6aS) 4-methoxy-tetrahydro-furo[3,4-b]furan-2-one.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: September 29, 2009
    Assignee: Tibotec Pharmaceuticals, Ltd.
    Inventors: Peter Jan Leonard Mario Quaedflieg, Bart Rudolf Romanie Kesteleyn, Robert Jan Vijn, Constantinus Simon Maria Liebregts, Jacob Hermanus Matheus Hero Kooistra, Franciscus Alphons Marie Lommen