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).
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Publication number: 20230270920Abstract: 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: ApplicationFiled: February 10, 2023Publication date: August 31, 2023Inventors: Noel L. DAVISON, Henricus Johannes ARTS, Aylvin Jorge Angelo Athanasius DIAS, Anne Marie PERSSON, Ruud Jozef Regina Wilhelmus PETERS
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Patent number: 11590706Abstract: 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: GrantFiled: May 3, 2019Date of Patent: February 28, 2023Assignee: Covestro (Netherlands) B.V.Inventors: Aylvin Jorge Angelo Athanasius Dias, Franciscus Johannes Marie Derks
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Publication number: 20210323233Abstract: 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: ApplicationFiled: May 3, 2019Publication date: October 21, 2021Inventors: Aylvin Jorge Angelo Athanasius DIAS, Franciscus Johannes Marie DERKS
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Publication number: 20210299332Abstract: 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: ApplicationFiled: March 6, 2019Publication date: September 30, 2021Inventors: Aylvin Jorge Angelo Athanasius DIAS, Noel L. DAVISON, Anne Marie PERSSON, Ynze MENGERINK, Paul Mathieu DE BUEGER
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Publication number: 20210012935Abstract: 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: ApplicationFiled: September 24, 2020Publication date: January 14, 2021Inventors: Mengmeng ZONG, Aylvin Jorge Angelo Athanasius DIAS, Edith Elisabeth M VAN DEN BOSCH, Jun QIU
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Publication number: 20200360573Abstract: 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: ApplicationFiled: October 5, 2018Publication date: November 19, 2020Inventors: Noel L. DAVISON, Henricus Johannes ARTS, Aylvin Jorge Angelo Athanasius DIAS, Anne Marie PERSSON, Ruud Jozef Regina Wilhelmus PETERS
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Patent number: 10818420Abstract: 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: GrantFiled: March 3, 2017Date of Patent: October 27, 2020Assignee: DSM IP ASSETS B.V.Inventors: Mengmeng Zong, Aylvin Jorge Angelo Athanasius Dias, Edith Elisabeth M Van Den Bosch, Jun Qiu
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Patent number: 10184027Abstract: 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: GrantFiled: August 10, 2015Date of Patent: January 22, 2019Assignee: DSM IP ASSETS, B.V.Inventors: Aylvin Jorge Angelo Athanasius Dias, Zhiyuan Zhong, Huanli Sun, Wei Wang, Fenghua Meng, Jan Feijen
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Patent number: 9951183Abstract: 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: GrantFiled: August 10, 2015Date of Patent: April 24, 2018Assignee: DSM IP ASSETS, B.V.Inventors: Aylvin Jorge Angelo Athanasius Dias, Zhiyuan Zhong, Huanli Sun, Wei Wang, Fenghua Meng, Jan Feijen
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Patent number: 9737637Abstract: 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: GrantFiled: November 28, 2005Date of Patent: August 22, 2017Assignee: DSM IP ASSETS B.V.Inventors: Aylvin Jorge Angelo Athanasius Dias, Marnix Rooijmans, Victor Litvinov, Edwin Peter Kennedy Currie, Erwin Johannes Elisabeth Houben
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Publication number: 20170233527Abstract: 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: ApplicationFiled: August 10, 2015Publication date: August 17, 2017Inventors: Aylvin Jorge Angelo Athanasius DIAS, Zhiyuan ZHONG, Huanli SUN, Wei WANG, Fenghua MENG, Jan FEIJEN
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Publication number: 20170218123Abstract: 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: ApplicationFiled: August 10, 2015Publication date: August 3, 2017Inventors: Aylvin Jorge Angelo Athanasius DIAS, Zhiyuan ZHONG, Huanli SUN, Wei WANG, Fenghua MENG, Jan FEIJEN
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Patent number: 9695285Abstract: 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: GrantFiled: May 23, 2014Date of Patent: July 4, 2017Assignee: DSM IP ASSETS B.V.Inventors: Aylvin Jorge Angelo Athanasius Dias, Scott Curtin, MengMeng Zong, Meng Ouyang
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Publication number: 20170044288Abstract: 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: ApplicationFiled: August 22, 2016Publication date: February 16, 2017Inventors: Aylvin Jorge Angelo Athanasius DIAS, Bartholomeus Johannes Margretha PLUM, Peter Jan Leonard Mario QUAEDFLIEG, Roel Wim WIERTZ
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Publication number: 20160310643Abstract: 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: ApplicationFiled: January 28, 2016Publication date: October 27, 2016Inventors: Aylvin Jorge Angelo Athanasius DIAS, Edith Elisabeth M. VAN DEN BOSCH, Peter BRUIN, Marnix ROOIJMANS, Rudolfus Antonius Theordus Maria VAN BENTHEM
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Patent number: 9458256Abstract: 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: GrantFiled: November 7, 2007Date of Patent: October 4, 2016Assignee: DSM IP ASSETS B.V.Inventors: Aylvin Jorge Angelo Athanasius Dias, Bartholomeus Johannes Margretha Plum, Peter Jan Leonard Mario Quaedflieg, Roel Wim Wiertz
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Publication number: 20160108180Abstract: 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: ApplicationFiled: May 23, 2014Publication date: April 21, 2016Applicant: DSM IP ASSETS B.V.Inventors: Aylvin Jorge Angelo Athanasius DIAS, Scott CURTIN, MengMeng ZONG, Meng OUYANG
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Patent number: 8871869Abstract: 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: GrantFiled: December 11, 2006Date of Patent: October 28, 2014Assignee: 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
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Patent number: 8828546Abstract: 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: GrantFiled: September 13, 2007Date of Patent: September 9, 2014Assignee: 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
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Publication number: 20140180221Abstract: 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: ApplicationFiled: December 13, 2013Publication date: June 26, 2014Applicant: 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