Patents by Inventor Luiz C. Oliveira Da Cunha Lima

Luiz C. Oliveira Da Cunha Lima 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 of manufacture of paint and adhesive rubber from vulcanized rubber
    Patent number: 5607981
    Abstract: Method of manufacture of paint and adhesive of rubber from vulcanized rubber that is reclaimed, becoming a product that provides impermeability, flexibility and resistance to the pellicle by process of reduction to small particles through cracking beater mills, immersed in adequate solvents and recovered in ball mills to which is added products such as dyeing, pigments, asphalts, oils, accelerators, resins, etc., which give to the paint or adhesive its final characteristics.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: March 4, 1997
    Assignee: Relastomer S/A
    Inventor: Luiz C. Oliveira da Cunha Lima
  • Method for obtaining an elastomer product with high petroleum and its by-products absorption power
    Patent number: 5516809
    Abstract: Methods for obtaining an elastomer product capable of absorbing petroleum and its by products including the steps of forming a mixture of waste vulcanized rubber, resin and organic solvent, grinding the mixture in a mill in the presence of manganese to produce a slurry of very small particles of a reclaimed rubber, and drying the slurry which results in porous elastomer particles which are capable of absorbing petroleum and its by-products.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: May 14, 1996
    Assignee: Relastomer S/A
    Inventor: Luiz C. Oliveira Da Cunha Lima
  • Thermoplastic rubber obtention method
    Patent number: 5359007
    Abstract: A method is disclosed for obtaining a thermoplastic rubber, from raw materials wich comprehend used rubber artifacts, like tires and other rubber products, devulcanized by means of physical, chemical, or physico-chemical process, transformed into an uniform and regular batch, wich is blended to a thermoplastic, thus obtaining a thermoplastic rubber for diversified industrial applications.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: October 25, 1994
    Assignee: Relastomer S/A
    Inventor: Luiz C. Oliveira Da Cunha Lima