Patents by Inventor Xiaocong PU

Xiaocong PU 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).

  • Composite film of oral liquid pharmaceutical packaging and preparation method
    Patent number: 12478550
    Abstract: The present disclosure discloses the composite film of oral liquid pharmaceutical packaging and the preparation method, the composite film comprises a polyester layer, an aluminum foil layer and a heat-sealing layer; the polyester layer and the aluminum foil layer, and the aluminum foil layer and the heat-sealing layer are both bonded with an adhesive agent; the adhesive agent is an aqueous polyurethane prepared from an aqueous polyurethane emulsion, citric acid, acetic acid and zirconium carbonate amine with a mass ratio of 100:1:1:10˜15. The present disclosure adopts carboxylic acid type aqueous polyurethane emulsion, citric acid, acetic acid and zirconium carbonate amine to prepare aqueous polyurethane, the zirconium metal can form stable complex system with citric acid, acetic acid and aqueous polyurethane emulsion, so that aqueous polyurethane emulsion can be demulsified and cured rapidly, shortening curing time, reducing curing temperature.
    Type: Grant
    Filed: March 15, 2023
    Date of Patent: November 25, 2025
    Assignee: Sichuan Huili Industry Co., Ltd.
    Inventors: Jinzhi Bai, Wanling Lan, Yan Jiang, Daiguo Zhao, Xiaocong Pu, Daiqun Yuan, Xinxing Zhu, Zhongming Li
  • COMPOSITE FILM OF ORAL LIQUID PHARMACEUTICAL PACKAGING AND PREPARATION METHOD
    Publication number: 20240216219
    Abstract: The present disclosure discloses the composite film of oral liquid pharmaceutical packaging and the preparation method, the composite film comprises a polyester layer, an aluminum foil layer and a heat-sealing layer; the polyester layer and the aluminum foil layer, and the aluminum foil layer and the heat-sealing layer are both bonded with an adhesive agent; the adhesive agent is an aqueous polyurethane prepared from an aqueous polyurethane emulsion, citric acid, acetic acid and zirconium carbonate amine with a mass ratio of 100:1:1:10˜15. The present disclosure adopts carboxylic acid type aqueous polyurethane emulsion, citric acid, acetic acid and zirconium carbonate amine to prepare aqueous polyurethane, the zirconium metal can form stable complex system with citric acid, acetic acid and aqueous polyurethane emulsion, so that aqueous polyurethane emulsion can be demulsified and cured rapidly, shortening curing time, reducing curing temperature.
    Type: Application
    Filed: March 15, 2023
    Publication date: July 4, 2024
    Inventors: Jinzhi BAI, Wanling LAN, Yan JIANG, Daiguo ZHAO, Xiaocong PU, Daiqun YUAN, Xinxing ZHU, Zhongming LI