Patents by Inventor Bouchra Rhers

Bouchra Rhers 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).

  • Patent number: 11124627
    Abstract: The invention relates to a plasticizing composition comprising a vinyl chloride resin and a plasticizing agent which comprises at least one diester having the general formula (I), derived from a diacid selected from succinic acid, glutaric acid, adipic acid, ethylsuccinic acid, methylglutaric acid and mixtures thereof wherein: A is a C4 to C6 linear or branched aliphatic chain, and R is an alkyl, a cycloalkyl or an aryl. The plasticizing agent according to the present invention has a good performance for different types of formulations (foam, film and paste). Said plasticizer gels rapidly, has a very low viscosity, and ages very well. Efficient debubblizing is one of the key properties thereof. The foams prepared with said plasticizer have very low densities, a high expansion rate, and excellent qualities.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 21, 2021
    Assignee: Performance Polyamides, SAS
    Inventors: Bouchra Rhers, Daniel Martinz
  • Publication number: 20190016873
    Abstract: The invention relates to a plasticizing composition comprising a vinyl chloride resin and a plasticizing agent which comprises at least one diester having the general formula (I), derived from a diacid selected from succinic acid, glutaric acid, adipic acid, ethylsuccinic acid, methylglutaric acid and mixtures thereof wherein: A is a C4 to C6 linear or branched aliphatic chain, and R is an alkyl, a cycloalkyl or an aryl. The plasticizing agent according to the present invention has a good performance for different types of formulations (foam, film and paste). Said plasticizer gels rapidly, has a very low viscosity, and ages very well. Efficient debubblizing is one of the key properties thereof. The foams prepared with said plasticizer have very low densities, a high expansion rate, and excellent qualities.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 17, 2019
    Applicant: Rhodia Operations
    Inventors: Bouchra Rhers, Daniel Martinz
  • Patent number: 9382182
    Abstract: The present invention relates to a process for preparing at least one diacid compound, comprising a step of hydrolysis reaction of at least one imide compound, performed in the absence of catalyst.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: July 5, 2016
    Assignee: RHODIA OPERATIONS
    Inventors: Roland Jacquot, Bouchra Rhers
  • Publication number: 20160053083
    Abstract: The invention relates to a plasticizing composition comprising a vinyl chloride resin and a plasticizing agent which comprises at least one diester having the general formula (I), derived from a diacid selected from succinic acid, glutaric acid, adipic acid, ethylsuccinic acid, methylglutaric acid and mixtures thereof wherein: A is a C4 to C6 linear or branched aliphatic chain, and R is an alkyl, a cycloalkyl or an aryl. The plasticizing agent according to the present invention has a good performance for different types of formulations (foam, film and paste). Said plasticizer gels rapidly, has a very low viscosity, and ages very well. Efficient debubblizing is one of the key properties thereof. The foams prepared with said plasticizer have very low densities, a high expansion rate, and excellent qualities.
    Type: Application
    Filed: April 8, 2014
    Publication date: February 25, 2016
    Inventors: Bouchra RHERS, Daniel MARTINZ
  • Publication number: 20150175515
    Abstract: The present invention relates to a process for preparing at least one diacid compound, comprising a step of hydrolysis reaction of at least one imide compound, performed in the absence of catalyst.
    Type: Application
    Filed: June 26, 2013
    Publication date: June 25, 2015
    Inventors: Roland Jacquot, Bouchra Rhers