Patents by Inventor Feihua YAN

Feihua YAN 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: 10184061
    Abstract: The present invention relates to an efficient waterborne nano-silicon rubber sealing waterproof agent, comprising following components in parts by weight: 10˜90 parts of nano-silica gel, 10˜100 parts of nano-diatomaceous earth, 5˜150 parts of nano polyurethane, 15˜200 parts of nano inorganic dry powder, 10˜100 parts of nano methyl cellulose, 10˜150 parts of a chelating agent, 15˜200 parts of an expansion agent, 10˜250 parts of a strengthening agent, 5˜100 parts of an antifreezing agent, 2˜150 parts of a heat-resistant agent and 10˜100 parts of an acid and alkali-resistant agent. The efficient waterborne nano-silicon rubber sealing waterproof agent has good waterproofness, permeability, film forming property, elasticity, adhesion, water resistance and heat, humid and high temperature resistance, is suitable for being used for waterproof, anti-seepage and anti-leakage repair projects of underground engineering and roofing, and is an excellent vapor barrier material in a refrigerating chamber.
    Type: Grant
    Filed: April 10, 2016
    Date of Patent: January 22, 2019
    Inventor: Feihua Yan
  • Publication number: 20180298225
    Abstract: The present invention relates to an efficient waterborne nano-silicon rubber sealing waterproof agent, comprising following components in parts by weight: 10˜90 parts of nano-silica gel, 10˜100 parts of nano-diatomaceous earth, 5˜150 parts of nano polyurethane, 15˜200 parts of nano inorganic dry powder, 10˜100 parts of nano methyl cellulose, 10˜150 parts of a chelating agent, 15˜200 parts of an expansion agent, 10˜250 parts of a strengthening agent, 5˜100 parts of an antifreezing agent, 2˜150 parts of a heat-resistant agent and 10˜100 parts of an acid and alkali-resistant agent. The efficient waterborne nano-silicon rubber sealing waterproof agent has good waterproofness, permeability, film forming property, elasticity, adhesion, water resistance and heat, humid and high temperature resistance, is suitable for being used for waterproof, anti-seepage and anti-leakage repair projects of underground engineering and roofing, and is an excellent vapor barrier material in a refrigerating chamber.
    Type: Application
    Filed: April 10, 2016
    Publication date: October 18, 2018
    Inventor: Feihua YAN