Patents by Inventor Aylvin Jorge Angelo Athanasius Dias

Aylvin Jorge Angelo Athanasius Dias 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: 20230270920
    Abstract: The disclosure relates to a method of making a bioceramic coating on a fibrous article for use in a medical implant, comprising steps of providing an article comprising fibers made from a biocompatible, non-biodegradable polymer; coating at least the fibers that will be in contact with bone upon use as an implant with a solution of a coating polymer to result in coated fibers having a coating polymer layer; treating the coated fibers with a dispersion of bioactive ceramic particles 0.01-10 ?m in a treating solvent comprising a solvent for the coating polymer in at least one step; and substantially removing the treating solvent; to result in the particles being partly embedded in the coating polymer layer of the coated fibers.
    Type: Application
    Filed: February 10, 2023
    Publication date: August 31, 2023
    Inventors: Noel L. DAVISON, Henricus Johannes ARTS, Aylvin Jorge Angelo Athanasius DIAS, Anne Marie PERSSON, Ruud Jozef Regina Wilhelmus PETERS
  • Patent number: 11590706
    Abstract: Methods for post-processing photofabricated articles created via additive fabrication processes are described and claimed herein. Such methods include providing a photofabricated article, preferably an article that has been at least partially cured via cationic polymerization mechanisms, optionally, post-processing the photofabricated article, and base-washing the photofabricated article in an alkaline solution or dispersion to create a neutralized photofabricated article. In another embodiment, the methods include treating a photofabricated article having a residual acid or base species with a treatment composition in order to create a neutralized photofabricated article. Also described and claimed are the neutralized photofabricated articles created via the methods herein elsewhere described. Such articles are preferably biocompatible, especially as determined by their lack of cytotoxicity potential.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: February 28, 2023
    Assignee: Covestro (Netherlands) B.V.
    Inventors: Aylvin Jorge Angelo Athanasius Dias, Franciscus Johannes Marie Derks
  • Publication number: 20210323233
    Abstract: Methods for post-processing photofabricated articles created via additive fabrication processes are described and claimed herein. Such methods include providing a photofabricated article, preferably an article that has been at least partially cured via cationic polymerization mechanisms, optionally, post-processing the photofabricated article, and base-washing the photofabricated article in an alkaline solution or dispersion to create a neutralized photofabricated article. In another embodiment, the methods include treating a photofabricated article having a residual acid or base species with a treatment composition in order to create a neutralized photofabricated article. Also described and claimed are the neutralized photofabricated articles created via the methods herein elsewhere described. Such articles are preferably biocompatible, especially as determined by their lack of cytotoxicity potential.
    Type: Application
    Filed: May 3, 2019
    Publication date: October 21, 2021
    Inventors: Aylvin Jorge Angelo Athanasius DIAS, Franciscus Johannes Marie DERKS
  • Publication number: 20210299332
    Abstract: The disclosure relates to high-strength polyolefin composite fibers, which fibers have a fiber body comprising a composition consisting of polyolefin; 1-30 mass % of bioceramic particles having particle size D50 of 0.01-10 ?m; at most 0.05 mass % of residual spin solvent; optionally 0-3 mass % of other additives; and wherein the sum of a)-d) is 100 mass %; and which fibers have bioceramic particles exposed at their surface, and show bioactivity. The composite fibers based on a composition of polyolefin with bioceramic particles mixed therein show particles being exposed at the fiber surface by techniques like AFM and XPS, and although apparently only a relatively small amount of bioceramic particles is exposed at the fiber surface, this appears sufficient for effective interaction with their environment and stimulating a positive biological response as demonstrated by in vitro cell studies.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 30, 2021
    Inventors: Aylvin Jorge Angelo Athanasius DIAS, Noel L. DAVISON, Anne Marie PERSSON, Ynze MENGERINK, Paul Mathieu DE BUEGER
  • Publication number: 20210012935
    Abstract: Disclosed are anti-fouling and optionally specific binding surfaces, methods for forming anti-fouling and optionally specific binding surfaces, and molecules that may be useful for forming anti-fouling and optionally specific binding surfaces. The surfaces may be formed by employing a molecule comprising a poly(2-oxazoline) having functional groups. In an embodiment, the poly(2-oxazoline) comprises a carboxyl endgroup, an amine endgroup, an N- hydroxysuccinimide endgroup, an oxirane endgroup, an oxetane endgroup, or an isocyanate endgroup, which may enable attachment of a specific binding moiety to the poly(2-oxazoline). In an embodiment, the poly(2-oxazoline) molecule comprises a (meth)acrylate functionality that may allow for attachment to a surface comprising a moiety capable of nucleophilic conjugate addition.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 14, 2021
    Inventors: Mengmeng ZONG, Aylvin Jorge Angelo Athanasius DIAS, Edith Elisabeth M VAN DEN BOSCH, Jun QIU
  • Publication number: 20200360573
    Abstract: The disclosure relates to a method of making a bioceramic coating on a fibrous article for use in a medical implant, comprising steps of providing an article comprising fibers made from a biocompatible, non-biodegradable polymer; coating at least the fibers that will be in contact with bone upon use as an implant with a solution of a coating polymer to result in coated fibers having a coating polymer layer; treating the coated fibers with a dispersion of bioactive ceramic particles 0.01-10??? in a treating solvent comprising a solvent for the coating polymer in at least one step; and substantially removing the treating solvent; to result in the particles being partly embedded in the coating polymer layer of the coated fibers. The disclosed methods enable a relatively simple way of providing a complex shaped article like a fibrous article with a bioceramic coating, to result in a modified surface that shows bioactivity, applying biocompatible compounds and mild conditions.
    Type: Application
    Filed: October 5, 2018
    Publication date: November 19, 2020
    Inventors: Noel L. DAVISON, Henricus Johannes ARTS, Aylvin Jorge Angelo Athanasius DIAS, Anne Marie PERSSON, Ruud Jozef Regina Wilhelmus PETERS
  • Patent number: 10818420
    Abstract: Disclosed are anti-fouling and optionally specific binding surfaces, methods for forming anti-fouling and optionally specific binding surfaces, and molecules that may be useful for forming anti-fouling and optionally specific binding surfaces. The surfaces may be formed by employing a molecule comprising a poly(2-oxazoline) having functional groups. In an embodiment, the poly(2-oxazoline) comprises a carboxyl endgroup, an amine endgroup, an N-hydroxysuccinimide endgroup, an oxirane endgroup, an oxetane endgroup, or an isocyanate endgroup, which may enable attachment of a specific binding moiety to the poly(2-oxazoline). In an embodiment, the poly(2-oxazoline) molecule comprises a (meth)acrylate functionality that may allow for attachment to a surface comprising a moiety capable of nucleophilic conjugate addition.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: October 27, 2020
    Assignee: DSM IP ASSETS B.V.
    Inventors: Mengmeng Zong, Aylvin Jorge Angelo Athanasius Dias, Edith Elisabeth M Van Den Bosch, Jun Qiu
  • Patent number: 10184027
    Abstract: The present invention relates to biodegradable polyesteramides (PEAs) comprising hydrophobic alpha-amino acids, diols, aliphatic dicarboxylic acids and optionally diamines whereby at least one of the dicarboxylic acids, diols or diamines comprises disulphide linkages. The present invention also relates to the use of the polyesteramides in medical applications such as cancer treatment, ophthalmic applications, therapeutic cardiovascular applications, veterinary applications, pain management applications, MSK applications and vaccine delivery compositions. The present invention also relates to a drug delivery composition comprising the PEA's and to a drug delivery system such as micro- or nanoparticles, micelles, liposomes, polymerosomes, micro- and nanogels, polymerosomes or nanotubes.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: January 22, 2019
    Assignee: DSM IP ASSETS, B.V.
    Inventors: Aylvin Jorge Angelo Athanasius Dias, Zhiyuan Zhong, Huanli Sun, Wei Wang, Fenghua Meng, Jan Feijen
  • Patent number: 9951183
    Abstract: The present invention relates to amphiphilic block copolymers comprising reduction sensitive biodegradable polyesteramides. The present invention also relates to micelles comprising the amphiphilic block copolymers. The invention also relates to drug delivery systems comprising the micelles. The amphiphilic block copolymers comprise hydrophilic and hydrophobic blocks whereby the hydrophobic blocks comprise a biodegradable polyesteramide based on alpha-amino acids, diols, aliphatic dicarboxylic acids and optionally diamines whereby at least one of the dicarboxylic acids, diols or diamines comprises disulphide linkages.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: April 24, 2018
    Assignee: DSM IP ASSETS, B.V.
    Inventors: Aylvin Jorge Angelo Athanasius Dias, Zhiyuan Zhong, Huanli Sun, Wei Wang, Fenghua Meng, Jan Feijen
  • Patent number: 9737637
    Abstract: This invention relates to an improved process for obtaining a cross-linked polymer coating on a surface. The invention also relates to coatings obtainable by that process and objects coated therewith. The invention also relates to medical devices comprising a coating, in particular to coils coated with an improved lubricious coating.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: August 22, 2017
    Assignee: DSM IP ASSETS B.V.
    Inventors: Aylvin Jorge Angelo Athanasius Dias, Marnix Rooijmans, Victor Litvinov, Edwin Peter Kennedy Currie, Erwin Johannes Elisabeth Houben
  • Publication number: 20170233527
    Abstract: The present invention relates to biodegradable polyesteramides (PEAs) comprising hydrophobic alpha-amino acids, diols, aliphatic dicarboxylic acids and optionally diamines whereby at least one of the dicarboxylic acids, diols or diamines comprises disulphide linkages. The present invention also relates to the use of the polyesteramides in medical applications such as cancer treatment, ophthalmic applications, therapeutic cardiovascular applications, veterinary applications, pain management applications, MSK applications and vaccine delivery compositions. The present invention also relates to a drug delivery composition comprising the PEA's and to a drug delivery system such as micro- or nanoparticles, micelles, liposomes, polymerosomes, micro- and nanogels, polymerosomes or nanotubes.
    Type: Application
    Filed: August 10, 2015
    Publication date: August 17, 2017
    Inventors: Aylvin Jorge Angelo Athanasius DIAS, Zhiyuan ZHONG, Huanli SUN, Wei WANG, Fenghua MENG, Jan FEIJEN
  • Publication number: 20170218123
    Abstract: The present invention relates to amphiphilic block copolymers comprising reduction sensitive biodegradable polyesteramides. The present invention also relates to micelles comprising the amphiphilic block copolymers. The invention also relates to drug delivery systems comprising the micelles. The amphiphilic block copolymers comprise hydrophilic and hydrophobic blocks whereby the hydrophobic blocks comprise a biodegradable polyesteramide based on alpha-amino acids, diols, aliphatic dicarboxylic acids and optionally diamines whereby at least one of the dicarboxylic acids, diols or diamines comprises disulphide linkages.
    Type: Application
    Filed: August 10, 2015
    Publication date: August 3, 2017
    Inventors: Aylvin Jorge Angelo Athanasius DIAS, Zhiyuan ZHONG, Huanli SUN, Wei WANG, Fenghua MENG, Jan FEIJEN
  • Patent number: 9695285
    Abstract: The invention is directed to a macromer comprising unit derived from a siloxane diol, di-isocyanates and a diol comprising a pendant group comprising an oligomer or polymer derived from methyl oxazoline or ethyl oxazoline. The invention also relates to a process for the preparation of said macromers, and to that the use of said macromers. The macromers according to the invention may be used in lenses, such as ophthalmic lenses. Films comprising the macromers according to the invention provide a surprisingly low modulus in combination with a high water content and oxidative stability.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: July 4, 2017
    Assignee: DSM IP ASSETS B.V.
    Inventors: Aylvin Jorge Angelo Athanasius Dias, Scott Curtin, MengMeng Zong, Meng Ouyang
  • Publication number: 20170044288
    Abstract: Compounds are provided which comprise (a) at least two polymerisable moieties, (b) at least one amino acid residue of an amino acid comprising at least two amine groups of which at least two amine groups have formed a carbamate, a thiocarbamate or a carbamide group, and (c) a biomolecular moiety linked directly or via a spacer to the carboxylic acid moiety of the diamino acid residue or a carboxylic acid to which such moiety can be linked. A polymer obtained from such compounds is also disclosed.
    Type: Application
    Filed: August 22, 2016
    Publication date: February 16, 2017
    Inventors: Aylvin Jorge Angelo Athanasius DIAS, Bartholomeus Johannes Margretha PLUM, Peter Jan Leonard Mario QUAEDFLIEG, Roel Wim WIERTZ
  • Publication number: 20160310643
    Abstract: The invention relates to a coating formulation for preparing medical coating, which coating formulation comprises (a) at least one multifunctional polymerizable compound according to a formula (I), wherein G is a residue of a polyfunctional compound having at least n functional groups, wherein each R1 and each R2 independently represents hydrogen or a group selected from substituted and unsubstituted hydrocarbons which optionally contain one or more heteroatoms, and wherein n is an integer having a value of at least 2; and (b) at least one inhibitor.
    Type: Application
    Filed: January 28, 2016
    Publication date: October 27, 2016
    Inventors: Aylvin Jorge Angelo Athanasius DIAS, Edith Elisabeth M. VAN DEN BOSCH, Peter BRUIN, Marnix ROOIJMANS, Rudolfus Antonius Theordus Maria VAN BENTHEM
  • Patent number: 9458256
    Abstract: Compounds and polymers obtained from such compounds are provided, wherein the compounds have (a) at least two polymerizable moieties, (b) at least one amino acid residue of an amino acid comprising at least two amine groups of which at least two amine groups have formed a carbamate, a thiocarbamate or a carbamide group, and (c) a biomolecular moiety linked directly or via a spacer to the carboxylic acid moiety of the diamino acid residue or a carboxylic acid to which such moiety can be linked.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: October 4, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Aylvin Jorge Angelo Athanasius Dias, Bartholomeus Johannes Margretha Plum, Peter Jan Leonard Mario Quaedflieg, Roel Wim Wiertz
  • Publication number: 20160108180
    Abstract: The invention is directed to a macromer comprising unit derived from a siloxane diol, di-isocyanates and a diol comprising a pendant group comprising an oligomer or polymer derived from methyl oxazoline or ethyl oxazoline. The invention also relates to a process for the preparation of said macromers, and to that the use of said macromers. The macromers according to the invention may be used in lenses, such as ophthalmic lenses. Films comprising the macromers according to the invention provide a surprisingly low modulus in combination with a high water content and oxidative stability.
    Type: Application
    Filed: May 23, 2014
    Publication date: April 21, 2016
    Applicant: DSM IP ASSETS B.V.
    Inventors: Aylvin Jorge Angelo Athanasius DIAS, Scott CURTIN, MengMeng ZONG, Meng OUYANG
  • Patent number: 8871869
    Abstract: The invention relates to a hydrophilic coating formulation which when cured results in a hydrophilic coating, wherein the hydrophilic coating formulation comprises a polyelectrolyte and a non-ionic hydrophilic polymer. The invention further relates to a coating system, a hydrophilic coating, a lubricious coating, use of a polyelectrolyte and a non-ionic hydrophilic polymer in a lubricious coating, an article, a medical device or component and a method of forming on a substrate a hydrophilic coating.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: October 28, 2014
    Assignee: DSM IP Assets B.V.
    Inventors: Aylvin Jorge Angelo Athanasius Dias, Guido Joseph Elisabeth Hensen, Johannes Wilhelmus Belt, Marnix Rooijmans, Nicolaes Hubertus Maria de Bont, Edwin Peter Kennedy Currie
  • Patent number: 8828546
    Abstract: The invention relates to an article comprising a coating, which coating comprises at least two layers, of which the inner layer is a primer layer, comprising a supporting network comprising a supporting polymer, and the outer layer is a functional layer comprising a multifunctional polymerizable compound.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: September 9, 2014
    Assignee: DSM IP Assets B.V.
    Inventors: Aylvin Jorge Angelo Athanasius Dias, Edith Elisabeth M. Van Den Bosch, Peter Bruin, Marnix Rooijmans, Rudolfus Antonius Theodorus Maria Van Benthem
  • Publication number: 20140180221
    Abstract: The invention relates to an article comprising a coating, which coating comprises at least two layers, of which the inner layer is a primer layer, comprising a supporting network comprising a supporting polymer, and the outer layer is a functional layer comprising a multifunctional polymerizable compound.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 26, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Aylvin Jorge Angelo Athanasius DIAS, Edith Elisabeth M. VAN DEN BOSCH, Peter BRUIN, Marnix ROOIJMANS, Rudolfus Antonius Theodorus Maria VAN BENTHEM