Patents by Inventor Yu Che

Yu Che 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: 12234395
    Abstract: The present invention provides a pressure-sensitive adhesive composition, including: an acrylic copolymer and a crosslinking agent. The acrylic copolymer is a reaction product of a mixture of the following monomers: a first alkyl (meth)acrylate, an alkyl group in the first alkyl (meth)acrylate having at least 6 carbon atoms; a second alkyl (meth)acrylate, an alkyl group in the second alkyl (meth)acrylate having 1 to 5 carbon atoms; and a vinyl carboxylic acid, the weight ratio of the vinyl carboxylic acid to the mixture being 4% to 5%. The crosslinking agent is an organometallic chelating agent. The weight ratio of the organometallic chelating agent to the mixture is 0.05% to 0.25%. The pressure-sensitive adhesive composition does not contain an effective amount of a tackifier. The present invention further provides a pressure-sensitive adhesive solution, a pressure-sensitive adhesive tape, and a method for preparing the same.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: February 25, 2025
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Weina Wang, Lu Shen, Yunshu Zhang, Yu Che, Panpan Lin, Heng Liu, Xiaohai Sheng, Shupeng Wu, Xiangming Yang
  • Publication number: 20250002751
    Abstract: The present disclosure relates to a two-component aqueous coating composition for wood based substrates and an article made therefrom. The aqueous coating composition includes (i) a primary agent, said primary agent including a) an aqueous polyurethane dispersion (PUD), b) an aqueous acrylic modified polyurethane (PUA), c) an aqueous liquid carrier, and d) additional additives; and ii) a curing agent composition, said curing agent composition including a hydrophilic modified aliphatic polyisocyanate, wherein a mass ratio of said primary agent to said curing agent composition is in the range of 100:5 to 100:20. The two-component aqueous coating composition of the present disclosure has a longer pot life, and a superior constructability and the coating formed therefrom has a particular excellent gloss stability.
    Type: Application
    Filed: June 26, 2024
    Publication date: January 2, 2025
    Inventors: Yu Che, Guijun Fan, Zhenlin Lu, Tingyu Hu
  • Publication number: 20230084796
    Abstract: The present invention provides a pressure-sensitive adhesive composition, including: an acrylic copolymer and a crosslinking agent. The acrylic copolymer is a reaction product of a mixture of the following monomers: a first alkyl (meth)acrylate, an alkyl group in the first alkyl (meth)acrylate having at least 6 carbon atoms; a second alkyl (meth)acrylate, an alkyl group in the second alkyl (meth)acrylate having 1 to 5 carbon atoms; and a vinyl carboxylic acid, the weight ratio of the vinyl carboxylic acid to the mixture being 4% to 5%. The crosslinking agent is an organometallic chelating agent. The weight ratio of the organometallic chelating agent to the mixture is 0.05% to 0.25%. The pressure-sensitive adhesive composition does not contain an effective amount of a tackifier. The present invention further provides a pressure-sensitive adhesive solution, a pressure-sensitive adhesive tape, and a method for preparing the same.
    Type: Application
    Filed: January 18, 2021
    Publication date: March 16, 2023
    Inventors: Weina Wang, Lu Shen, Yunshu Zhang, Yu Che, Panpan Lin, Heng Liu, Xiaohai Sheng, Shupeng Wu, Xiangming Yang