Patents by Inventor Yi-Sern WONG

Yi-Sern WONG 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).

  • Publication number: 20210130645
    Abstract: The present invention provides a compound comprising EO (ethylene oxide)/PO (propylene oxide) block copolymer which can be used as an emulsifier. The present invention also provides a water-borne epoxy resin composition comprising the compound and a coating composition comprising the water-borne epoxy resin composition. The advantages of the present invention is that the epoxy resin composition or the coating composition, which the compound of the present invention is added to, enhances the compatibility between water and epoxy resin, and enhances the anticorrosive properties of the epoxy resin composition and the coating composition.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 6, 2021
    Inventors: YING-JUI LIN, LIANG-HSING LIU, YUNG-SHENG LIN, KUO-PIN WU, I-CHIANG LAI, YI-SERN WONG, KUEN-YUAN HWANG
  • Patent number: 10745556
    Abstract: Provided are an amino resin composition, a varnish, a coating layer, and a product. The amino resin composition comprises a repeating unit represented by the following Formula (I): A 13C-NMR spectrum of the amino resin composition has a first characteristic peak at 159 ppm to 161 ppm and a second characteristic peak at 70 ppm to 80 ppm. Based on the integral value of the first characteristic peak as 1, the integral value of the second characteristic peak is in the range from 0.01 to 0.25. Adopting the amino resin composition can accelerate the drying of the varnish and ensure the coating layer and the product have high hardness, high gloss and excellent color stability.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: August 18, 2020
    Assignee: CHANG CHUN PLASTICS CO., LTD.
    Inventors: Ren-Wei Tsai, You-Ting Chen, Kuo-Pin Wu, Yung-Sheng Lin, I-Chiang Lai, Yi-Sern Wong, Kuen-Yuan Hwang
  • Patent number: 10450478
    Abstract: The present invention provides an epoxy resin comprising: a polymer having a structure of a reaction product of a monomer of epoxy having at least two epoxide groups per molecule, a polyether monoamine, and an epoxidized oil. The present invention also provides an aqueous dispersion and a water-borne epoxy coating composition which comprise the epoxy resin. The present inventions are low in volatile organic compounds and have enhanced properties such as high hardness, high adhesion strength, high impact resistance and high corrosion resistance.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: October 22, 2019
    Assignee: CHANG CHUN PLASTICS CO., LTD.
    Inventors: Ying-Jui Lin, Liang-Hsing Liu, Yung-Sheng Lin, I-Chiang Lai, Yi-Sern Wong, Kuen-Yuan Hwang
  • Patent number: 10392504
    Abstract: This disclosure relates to reactive epoxy compounds that have high water solubility. The reactive epoxy compounds are obtained by mixing an epoxy resin having at least two epoxy groups per molecule with a carboxyl group-containing compound obtained by reacting a polyetheramine comprising a primary amine and an acid anhydride derived from a polyvalent carboxylic acid. This disclosure also relates to waterborne epoxy resin composition comprising core-shell type epoxy resin particles dispersed in a solvent, wherein the particles are formed by an epoxy resin encapsulated in the reactive epoxy compounds of the present invention. The waterborne epoxy resin composition is low in volatile organic compounds (“VOC”).
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: August 27, 2019
    Assignee: Chang Chun Plastics Co., LTD.
    Inventors: Liang-Hsing Liu, Ying-Jui Lin, Yung-Sheng Lin, I-Chiang Lai, Kuen-Yuan Hwang, Yi-Sern Wong
  • Patent number: 10246607
    Abstract: An epoxy resin composition comprising a blend of at least (i) at least one epoxy group containing a polycyclic group, and (ii) at least one epoxy group that is different from the epoxy resin in component (i). As exemplary of component (i) is an epoxidized tricyclo decanedimethanol. A renewable epoxy of component (ii) is cardanol epoxy, derived from cashew nut shell oil (CNSL). Optionally, a component (iii) which is any other epoxy from that of (i) and (ii) can be included, such as Bisphenol-A/F diglycidal ether. The blend is characterized by low viscosity, making it amenable to airless spray application, high solids content and excellent solvent resistance and abrasion resistance.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: April 2, 2019
    Assignee: CHANG CHUN PLASTICS CO., LTD.
    Inventors: Ying-Jui Lin, Yung-Sheng Lin, I-Chiang Lai, Kuen-Yuan Hwang, Yi-Sern Wong
  • Publication number: 20190055397
    Abstract: This disclosure relates to reactive epoxy compounds that have high water solubility. The reactive epoxy compounds are obtained by mixing an epoxy resin having at least two epoxy groups per molecule with a carboxyl group-containing compound obtained by reacting a polyetheramine comprising a primary amine and an acid anhydride derived from a polyvalent carboxylic acid. This disclosure also relates to waterborne epoxy resin composition comprising core-shell type epoxy resin particles dispersed in a solvent, wherein the particles are formed by an epoxy resin encapsulated in the reactive epoxy compounds of the present invention. The waterborne epoxy resin composition is low in volatile organic compounds (“VOC”).
    Type: Application
    Filed: August 10, 2018
    Publication date: February 21, 2019
    Inventors: Liang-Hsing LIU, Ying-Jui LIN, Yung-Sheng LIN, I-Chiang LAI, Kuen-Yuan HWANG, Yi-Sern WONG
  • Publication number: 20190023936
    Abstract: An epoxy resin composition comprising a blend of at least (i) at least one epoxy group containing a polycyclic group, and (ii) at least one epoxy group that is different from the epoxy resin in component (i). As exemplary of component (i) is an epoxidized tricyclo decanedimethanol. A renewable epoxy of component (ii) is cardanol epoxy, derived from cashew nut shell oil (CNSL). Optionally, a component (iii) which is any other epoxy from that of (i) and (ii) can be included, such as Bisphenol-A/F diglycidal ether. The blend is characterized by low viscosity, making it amenable to airless spray application, high solids content and excellent solvent resistance and abrasion resistance.
    Type: Application
    Filed: July 13, 2018
    Publication date: January 24, 2019
    Inventors: Ying-Jui LIN, Yung-Sheng LIN, I-Chiang LAI, Kuen-Yuan HWANG, Yi-Sern WONG