Patents by Inventor Attilio Taccioli

Attilio Taccioli 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).

  • Process for the preparation of SBR rubbers with an improved processability and a lower rolling resistance
    Patent number: 6858683
    Abstract: Process for the production of statistic elastomeric conjugated diene-vinyl arene copolymers having a branched structure which comprises: (1) anionic copolymerization in solution of the conjugated diene and vinyl arene monomers, in the presence of randomizing agents and an initiator selected from the group of Lithium alkyls, the copolymerization being carried out until the almost total disappearance of the monomers; (2) addition to the solution of step (1) of a quantity of Lithium alkyl from 1 to 4 times the molar quantity of the Lithium alkyl of step (1); (3) addition to the polymeric solution of step (2) of a compound having the general formula R—Br, the molar ratio between R—Br and the total Lithium alkyl ranging from 0.6/1 to 1/1, preferably from 0.7/1 to 0.9/1, thus obtaining an elastomeric branched copolymer.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: February 22, 2005
    Assignee: Polimeri Europa S.p.A.
    Inventors: Gian Tommaso Viola, Luca Soddu, Sabrina Isidori, Attilio Taccioli, Francesco Masi
  • Process for the preparation of sbr rubbers with an improved processability and a lower rolling resistance
    Publication number: 20040006187
    Abstract: Process for the production of statistic elastomeric conjugated diene-vinyl arene copolymers having a branched structure which comprises: (1) anionic copolymerization in solution of the conjugated diene and vinyl arene monomers, in the presence of randomizing agents and an initiator selected from the group of Lithium alkyls, the copolymerization being carried out until the almost total disappearance of the monomers; (2) addition to the solution of step (1) of a quantity of Lithium alkyl from 1 to 4 times the molar quantity of the Lithium alkyl of step (1); (3) addition to the polymeric solution of step (2) of a compound having the general formula R—Br, the molar ratio between R—Br and the total Lithium alkyl ranging from 0.6/1 to 1/1, preferably from 0.7/1 to 0.9/1, thus obtaining an elastomeric branched copolymer.
    Type: Application
    Filed: June 2, 2003
    Publication date: January 8, 2004
    Inventors: Gian Tommaso Viola, Luca Soddu, Sabrina Isidori, Attilio Taccioli, Francesco Masi