Patents by Inventor Nabarun ROY

Nabarun ROY 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: 20200231739
    Abstract: The present invention relates to a polyurethane, in particular a thermoplastic polyurethane, obtainable or obtained by reacting at least the components (i) to (ii): (i) a polyisocyanate composition; (ii) a polyol composition, comprising (ii.1) at least one polyester diol or polyether diol having a number-average molecular weight in the range from 500 to 3000 g/mol, (ii.2) at least one polysiloxane having two terminal isocyanate-reactive functionalities selected from the group consisting of thio group, hydroxyl group and amino group. The invention additionally relates to a process for preparing this polyurethane, to the use thereof, to a molded body comprising the polyurethane. Furthermore, the invention relates to foam beads based on polyurethane, obtained or obtainable from the polyurethane, to a process for producing foam beads and also to bead foams and to the use thereof.
    Type: Application
    Filed: July 19, 2018
    Publication date: July 23, 2020
    Applicant: BASF SE
    Inventors: Julia Christa JAEHNIGEN, Nabarun ROY, Elmar POESELT, Dejan PETROVIC, Peter GUTMANN, Dirk KEMPFERT
  • Publication number: 20200095368
    Abstract: The present invention is directed to a polyisocyanate polyaddition product, obtained or obtainable according to a process containing reacting at least a polyisocyanate composition (C-I) comprising at least one polyisocyanate; and a composition (C-II) comprising at least one compound (C-A) having at least two functional groups which are reactive towards isocyanate groups, wherein the compound (C-A) has a molecular weight of 500 g/mol or more and comprises polycyclic aromatic moieties. The present invention is further directed to a process for preparing said polyisocyanate polyaddition product and the use thereof in a cable, conveyor belt, roller, seal for gasket or railway pad.
    Type: Application
    Filed: April 26, 2018
    Publication date: March 26, 2020
    Applicant: BASF SE
    Inventors: Sirus ZARBAKHSH, Nabarun ROY, Hendrik WAGNER
  • Publication number: 20190389999
    Abstract: The present invention relates to thermoplastic polyurethanes obtainable or obtained by reaction of at least one polyisocyanate composition, at least one chain extender (KV1) of general formula (I) and one further chain extender (KV2) selected from the group consisting of compounds having at least two isocyanate-reactive groups having a molecular weight of <500 g/mol, and at least one polyol composition. The present invention further relates to a production process for such thermoplastic polyurethanes and to the use of a thermoplastic polyurethane according to the invention or of a thermoplastic polyurethane obtainable or obtained by a process according to the invention for producing extrusion products, films and molded articles.
    Type: Application
    Filed: February 13, 2018
    Publication date: December 26, 2019
    Applicant: BASF SE
    Inventors: Nabarun ROY, Fin LAMMERS, Dirk KEMPFERT, Elmar POESELT
  • Publication number: 20190367660
    Abstract: The present invention relates to thermoplastic polyurethanes obtainable or obtained by reaction of at least one polyisocyanate composition which comprises 4,4?-MDI and at least one further polyisocyanate, at least one chain extender of general formula (I) and at least one polyol composition. The present invention further relates to a production process for such thermoplastic polyurethanes and to the use of a thermoplastic polyurethane according to the invention or of a thermoplastic polyurethane obtainable or obtained by a process according to the invention for producing extrusion products, films and molded articles.
    Type: Application
    Filed: February 13, 2018
    Publication date: December 5, 2019
    Applicant: BASF SE
    Inventors: Nabarun ROY, Elmar POESELT, Dirk KEMPFERT, Fin LAMMERS
  • Publication number: 20110093309
    Abstract: A system and method for predictive categorization of risk of at least one project related activity is provided. The system and method provide categorization of the project related activity into one of a plurality of predetermined risk categories. Further, the risk category of the project related activity is predicted in at least one stage of the project life cycle. The method comprises collecting inputs pertaining to the project related activity being categorized and a predetermined set of details for categorizing the project related activity. The method further comprises categorizing the project related activity by applying discriminant analysis. The application of discriminant analysis comprises constructing a set of functions based on the predetermined set of details. Thereafter, the constructed set of functions are applied on the details collected pertaining to the project related activity, wherein the functions are applied for predicting the risk category of the project related activity.
    Type: Application
    Filed: August 19, 2010
    Publication date: April 21, 2011
    Applicant: INFOSYS TECHNOLOGIES LIMITED
    Inventors: N. DAYASINDHU, Marti SUBRAHMANYAM, Devendra AWASTHI, Nabarun ROY