Patents by Inventor Carsten Hoej
Carsten Hoej 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: 11034779Abstract: Polymers are provided, in which a pendant photoinitiator moiety is linked to the polymer structure via an amide or a succinimide.Type: GrantFiled: August 16, 2018Date of Patent: June 15, 2021Assignee: Coloplast A/SInventors: Carsten Høj, Niels Joergen Madsen, Petr Sehnal, David Jepson, Andrew Towns
-
Publication number: 20200231715Abstract: Polymers are provided, in which a pendant photoinitiator moiety is linked to the polymer structure via an amide or a succinimide.Type: ApplicationFiled: August 16, 2018Publication date: July 23, 2020Inventors: Carsten HØJ, Niels Joergen MADSEN, Petr SEHNAL, David JEPSON, Andrew TOWNS
-
Publication number: 20180312691Abstract: This invention relates to an alloy comprising polyurethane and polyolefin. It has now surprisingly been found that a specific composition of polyolefin and polyurethane has surprising mechanical properties and at the same time has transparent characteristics and/or appearance. The present invention provides an alloy with remarkable mechanical properties. The phases do not macro-phase separate. Thus, this stable and potentially broad interface is very effective in stress transfer when the alloy is strained. As one might expect, the hardness values for the alloys are in between the hardness values of each component but the other physical properties are no so adjusted. In this way, when considering the hardness and mechanical values, these alloys behave like two compatible polymers.Type: ApplicationFiled: April 26, 2018Publication date: November 1, 2018Inventors: Carsten Hoej, Niels Joergen Madsen, Umit G. Makal
-
Patent number: 10011688Abstract: The invention provides a method for the manufacture of a gel, said method comprising the steps of: providing a matrix composition comprising a polymeric photoinitiator of the general formula (I): Polymer-[CR2—CHR-Spacer(PI)n]m (I) curing the matrix composition by exposing it to UV radiation and exposing the matrix composition to a swelling medium. The invention also relates to gels obtainable via the above method. The invention provides a hydrophilic gel precursor manufactured from the polymeric photoinitiator of Formula (I). Medical devices comprising the gels and hydrophilic gel precursors of the invention are provided. The invention also provides the use of a polymeric photoinitiator in the manufacture of a gel.Type: GrantFiled: February 22, 2016Date of Patent: July 3, 2018Assignee: Coloplast A/SInventors: Christian B. Nielsen, Niels Joergen Madsen, Carsten Hoej
-
Patent number: 9982132Abstract: This invention relates to an alloy comprising polyurethane and polyolefin. It has now surprisingly been found that a specific composition of polyolefin and polyurethane has surprising mechanical properties and at the same time has transparent characteristics and/or appearance. The present invention provides an alloy with remarkable mechanical properties. The phases do not macro-phase separate. Thus, this stable and potentially broad interface is very effective in stress transfer when the alloy is strained. As one might expect, the hardness values for the alloys are in between the hardness values of each component but the other physical properties are no adjusted. In this way, when considering the hardness and mechanical values, these alloys behave like two compatible polymers.Type: GrantFiled: May 17, 2013Date of Patent: May 29, 2018Assignee: Coloplast A/SInventors: Carsten Hoej, Niels Joergen Madsen, Umit G. Makal
-
Patent number: 9464143Abstract: The invention provides a method for producing a polymeric photoinitiator of the general formula I: Polymer-[CR2-CHR-Spacer (PI)n]m, (I) wherein m is an integer from 1-5000; n is a real number above 0 and below 5; each R group, independently, is a substituent independently selected from hydrogen, C1-C25 linear alkyl, C3-C25 branched alkyl, C3-C25 cycloalkyl, aryl, heteroaryl, —OH, —CN, halogens and amines and PI is a photoinitiator moiety. The method comprises grafting one or more photoinitiator moieties (PI), each of which comprises at least one activated alkene functional group, onto the polymer. Polymeric photoinitiators are also provided.Type: GrantFiled: June 22, 2011Date of Patent: October 11, 2016Assignee: Coloplast A/SInventors: Christian B. Nielsen, Niels Joergen Madsen, Carsten Hoej
-
Publication number: 20160168336Abstract: The invention provides a method for the manufacture of a gel, said method comprising the steps of: providing a matrix composition comprising a polymeric photoinitiator of the general formula (I): Polymer-[CR2—CHR-Spacer(PI)n]m (I) curing the matrix composition by exposing it to UV radiation and exposing the matrix composition to a swelling medium. The invention also relates to gels obtainable via the above method. The invention provides a hydrophilic gel precursor manufactured from the polymeric photoinitiator of Formula (I). Medical devices comprising the gels and hydrophilic gel precursors of the invention are provided. The invention also provides the use of a polymeric photoinitiator in the manufacture of a gel.Type: ApplicationFiled: February 22, 2016Publication date: June 16, 2016Inventors: Christian B. NIELSEN, Niels Joergen MADSEN, Carsten HOEJ
-
Patent number: 9303129Abstract: The invention provides a method for the manufacture of a gel, said method comprising the steps of: providing a matrix composition comprising a polymeric photoinitiator of the general formula (I): Polymer-[CR2—CHR-Spacer(PI)n]m (I) curing the matrix composition by exposing it to UV radiation and exposing the matrix composition to a swelling medium. The invention also relates to gels obtainable via the above method. The invention provides a hydrophilic gel precursor manufactured from the polymeric photoinitiator of Formula (I). Medical devices comprising the gels and hydrophilic gel precursors of the invention are provided. The invention also provides the use of a polymeric photoinitiator in the manufacture of a gel.Type: GrantFiled: June 22, 2011Date of Patent: April 5, 2016Assignee: Coloplast A/SInventors: Christian B. Nielsen, Niels Joergen Madsen, Carsten Hoej
-
Publication number: 20150141567Abstract: This invention relates to an alloy comprising polyurethane and polyolefin. It has now surprisingly been found that a specific composition of polyolefin and polyurethane has surprising mechanical properties and at the same time has transparent characteristics and/or appearance. The present invention provides an alloy with remarkable mechanical properties. The phases do not macro-phase separate. Thus, this stable and potentially broad interface is very effective in stress transfer when the alloy is strained. As one might expect, the hardness values for the alloys are in between the hardness values of each component but the other physical properties are no adjusted. In this way, when considering the hardness and mechanical values, these alloys behave like two compatible polymers.Type: ApplicationFiled: May 17, 2013Publication date: May 21, 2015Inventors: Carsten Hoej, Niels Joergen Madsen, Umit G. Makal
-
Publication number: 20140363562Abstract: The present invention relates to a method for the preparation of a medical device element by means of extrusion or injection moulding and to medical devices comprising such extruded or injection moulded medical device elements. The medical device elements (e.g. tubes, wires, lines, stents, catheters, guides, endodontic instruments, needles, trocars for e.g. laparoscopic surgery, laparoscopic accessories, surgical instruments, guide wires) are characterized by a prefabricated shaped article or a thermoplastic substrate polymer having thereon a layer of a covalently cross-linked coating composition of a thermoplastic matrix polymer and a hydrophilic polymer. The method involves a coating composition comprising a thermoplastic matrix polymer, a hydrophilic polymer, and one or more photo-initiator(s), e.g. covalently linked to molecules of the thermoplastic matrix polymer and/or to molecules of the hydrophilic polymer.Type: ApplicationFiled: June 20, 2014Publication date: December 11, 2014Inventors: Bo Rud Nielsen, Egon Triel, Carsten Hoej, Niels Joergen Madsen
-
Publication number: 20130096220Abstract: The invention provides a method for producing a polymeric photoinitiator, of the general formula I: Polymer-[CR2-CHR-Spacer(PI)n]m (I) wherein m is an integer from 1-5000; n is a real number above 0 and below 5; R is as defined herein, and PI is a photoinitiator moiety. The method comprises grafting one or more photoinitiator moieties (PI), each of which comprises at least one activated alkene functional group, onto the polymer. Polymeric photoinitiators are also provided.Type: ApplicationFiled: June 22, 2011Publication date: April 18, 2013Applicant: COLOPLAST A/SInventors: Christian B. Nielsen, Niels Joergen Madsen, Carsten Hoej
-
Publication number: 20130096221Abstract: The invention provides a method for the manufacture of a gel, said method comprising the steps of: providing a matrix composition comprising a polymeric photoinitiator of the general formula (I): Polymer-[CR2—CHR-Spacer(PI)n]m (I) curing the matrix composition by exposing it to UV radiation and exposing the matrix composition to a swelling medium. The invention also relates to gels obtainable via the above method. The invention provides a hydrophilic gel precursor manufactured from the polymeric photoinitiator of Formula (I). Medical devices comprising the gels and hydrophilic gel precursors of the invention are provided. The invention also provides the use of a polymeric photoinitiator in the manufacture of a gel.Type: ApplicationFiled: June 22, 2011Publication date: April 18, 2013Applicant: COLOPLAST A/SInventors: Christian B. Nielsen, Niels Joergen Madsen, Carsten Hoej
-
Publication number: 20080255492Abstract: An absorbent fibrous material comprising fibres prepared by melt spinning, solvent spinning, dry spinning or electro spinning of a polymer composition having a water absorption capacity of at least 10 g/g polymer composition and comprising a thermoplastic hydrophilic block copolymer as well as wound dressings comprising such absorbent fibrous material.Type: ApplicationFiled: August 19, 2005Publication date: October 16, 2008Inventors: Jens Hoeg Truelsen, Brian Nielsen, Niels Joergen Madsen, Carsten Hoej
-
Publication number: 20070009582Abstract: A pressure sensitive adhesive composition comprising one or more hydrogel-forming hydrophilic homopolymers or heteropolymers and one or more amphiphilic block-copolymers comprising hydrophobic polymer blocks being incompatible and hydrophilic polymer blocks is useful, for example, in transdermal drug delivery systems and other medical, pharmaceutical and cosmetic products that adhere to the skin or other body surface.Type: ApplicationFiled: October 7, 2004Publication date: January 11, 2007Inventors: Niels Madsen, Carsten Hoej