Patents by Inventor Bolin Tong

Bolin Tong 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 cleaner production of chlorinated rubber without using carbon tetrachloride and water
    Patent number: 8268931
    Abstract: The present invention relates to a green technology to produce chlorinated rubber without using carbon tetrachloride and water by using 1,1,2-trichloroethane as the solvent and iodine as the catalyst. The natural rubber reacts with an excessive amount of gaseous chlorine at 60-100° C. for 3-8 hours and the product is then dried. The method of the present invention complies with the environmental requirements of “The Montreal Protocol on Substances that Deplete the Ozone Layer” by abandoning the usage of CCl4. It also complies with the relevant regulations regarding ship-shell paints. Moreover, it is easy to carry out and is suitable for industrialization.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: September 18, 2012
    Inventor: Bolin Tong
  • PROCESS FOR CLEANER PRODUCTION OF CHLORINATED RUBBER WITHOUT USING CARBON TETRACHLORIDE AND WATER
    Publication number: 20110071260
    Abstract: The present invention relates to a green technology to produce chlorinated rubber without using carbon tetrachloride and water by using 1,1,2-trichloroethane as the solvent and iodine as the catalyst. The natural rubber reacts with an excessive amount of gaseous chlorine at 60-100° C. for 3-8 hours and the product is then dried. The method of the present invention complies with the environmental requirements of “The Montreal Protocol on Substances that Deplete the Ozone Layer” by abandoning the usage of CCl4. It also complies with the relevant regulations regarding ship-shell paints. Moreover, it is easy to carry out and is suitable for industrialization.
    Type: Application
    Filed: June 24, 2008
    Publication date: March 24, 2011
    Inventor: Bolin Tong