Patents by Inventor Angodage Sujith Ruwan Samantha Perera

Angodage Sujith Ruwan Samantha Perera 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).

  • Compositions for synthetic polyisoprene latex articles
    Patent number: 11845817
    Abstract: The present disclosure relates to synthetic polyisoprene elastomeric articles including: one or more cured blend compositions of pre-vulcanized synthetic polyisoprene particles and non-prevulcanized synthetic polyisoprene particles, wherein the pre-vulcanized synthetic polyisoprene particles and the non-prevulcanized synthetic polyisoprene particles are bonded by mono-sulfidic and/or di-sulfidic, and poly-sulfidic crosslinks, wherein the poly-sulfidic crosslinks are present in an amount of 60 to 79 percent of the total amount of crosslinks in the cured blend composition. Methods of making synthetic polyisoprene elastomeric articles such as gloves or condoms is also disclosed.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: December 19, 2023
    Assignee: Ansell Limited
    Inventors: Koralalage Don Sugathananda Amarasekera, David M. Lucas, Angodage Sujith Ruwan Samantha Perera, Dambadeni Arachchige Ruwani Upekshika Lalanthani
  • COMPOSITIONS FOR SYNTHETIC POLYISOPRENE LATEX ARTICLES
    Publication number: 20210115172
    Abstract: The present disclosure relates to synthetic polyisoprene elastomeric articles including: one or more cured blend compositions of pre-vulcanized synthetic polyisoprene particles and non-prevulcanized synthetic polyisoprene particles, wherein the pre-vulcanized synthetic polyisoprene particles and the non-prevulcanized synthetic polyisoprene particles are bonded by mono-sulfidic and/or di-sulfidic, and poly-sulfidic crosslinks, wherein the poly-sulfidic crosslinks are present in an amount of 60 to 79 percent of the total amount of crosslinks in the cured blend composition. Methods of making synthetic polyisoprene elastomeric articles such as gloves or condoms is also disclosed.
    Type: Application
    Filed: March 8, 2019
    Publication date: April 22, 2021
    Inventors: Koralalage Don Sugathananda Amarasekera, David M. Lucas, Angodage Sujith Ruwan Samantha Perera, Dambadeni Arachchige Ruwani Upekshika Lalanthani