Patents by Inventor Reza Haghpanah

Reza Haghpanah 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).

  • Method for the preparation of an alkoxy-functional organohydrogensiloxane oligomer and use of said oligomer
    Patent number: 11168181
    Abstract: A method for the preparation of an alkoxy-functional hydrogensiloxane oligomer includes reacting a polyorganohydrogensiloxane oligomer and an aliphatically unsaturated alkoxysilane in the presence of a hydrosilylation reaction and a promoter. The resulting crude reaction product is treated with a treating agent, and thereafter distilled to produce the alkoxy-functional organohydrogensiloxane oligomer. The alkoxy-functional hydrogensiloxane oligomer can be reacted with polyorganosiloxane having an aliphatically unsaturated monovalent hydrocarbon group to form a polyalkoxy-functional polyorganosiloxane. The polyalkoxy-functional polyorganosiloxane can be formulated in condensation reaction curable compositions.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: November 9, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Xiaoyuan Zhou, Reza Haghpanah, Aaron Greiner, Eric Joffre, Sean Reisch, Christine Marchand
  • Method for the preparation use of an alkoxy-functional organohydrogensiloxane oligomer using purified starting materials an duse of the oligomer
    Patent number: 11161939
    Abstract: A method for the preparation of an alkoxy-functional hydrogensiloxane oligomer includes reacting a polyorganohydrogensiloxane oligomer and an aliphatically unsaturated alkoxysilane in the presence of a hydrosilylation reaction and a promoter. The resulting reaction product is distilled, treated with a treating agent, and distilled again to produce the alkoxy-functional organohydrogensiloxane oligomer. The alkoxy-functional hydrogensiloxane oligomer can be reacted with polyorganosiloxane having an aliphatically unsaturated monovalent hydrocarbon group to form a polyalkoxy-functional polyorganosiloxane. The polyalkoxy-functional polyorganosiloxane can be formulated in condensation reaction curable compositions.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: November 2, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Xiaoyuan Zhou, Reza Haghpanah, Aaron Greiner, Eric Joffre, Sean Reisch, Christine Marchand
  • METHOD FOR THE PREPARATION USE OF AN ALKOXY-FUNCTIONAL ORGANOHYDROGENSILOXANE OLIGOMER USING PURIFIED STARTING MATERIALS AN DUSE OF THE OLIGOMER
    Publication number: 20210309808
    Abstract: A method for the preparation of an alkoxy-functional hydrogensiloxane oligomer includes reacting a polyorganohydrogensiloxane oligomer and an aliphatically unsaturated alkoxysilane in the presence of a hydrosilylation reaction and a promoter. The resulting reaction product is distilled, treated with a treating agent, and distilled again to produce the alkoxy-functional organohydrogensiloxane oligomer. The alkoxy-functional hydrogensiloxane oligomer can be reacted with polyorganosiloxane having an aliphatically unsaturated monovalent hydrocarbon group to form a polyalkoxy-functional polyorganosiloxane. The polyalkoxy-functional polyorganosiloxane can be formulated in condensation reaction curable compositions.
    Type: Application
    Filed: September 2, 2020
    Publication date: October 7, 2021
    Applicant: Dow Silicones Corporation
    Inventors: Xiaoyuan Zhou, Reza Haghpanah, Aaron Greiner, Eric Joffre, Sean Reisch, Christine Marchand
  • METHOD FOR THE PREPARATION OF AN ALKOXY-FUNCTIONAL ORGANOHYDROGENSILOXANE OLIGOMER AND USE OF SAID OLIGOMER
    Publication number: 20210309807
    Abstract: A method for the preparation of an alkoxy-functional hydrogensiloxane oligomer includes reacting a polyorganohydrogensiloxane oligomer and an aliphatically unsaturated alkoxysilane in the presence of a hydrosilylation reaction and a promoter. The resulting crude reaction product is treated with a treating agent, and thereafter distilled to produce the alkoxy-functional organohydrogensiloxane oligomer. The alkoxy-functional hydrogensiloxane oligomer can be reacted with polyorganosiloxane having an aliphatically unsaturated monovalent hydrocarbon group to form a polyalkoxy-functional polyorganosiloxane. The polyalkoxy-functional polyorganosiloxane can be formulated in condensation reaction curable compositions.
    Type: Application
    Filed: September 2, 2020
    Publication date: October 7, 2021
    Applicant: Dow Silicones Corporation
    Inventors: Xiaoyuan Zhou, Reza Haghpanah, Aaron Greiner, Eric Joffre, Sean Reisch, Christine Marchand