Patents by Inventor Ding-Shyan Chen

Ding-Shyan Chen 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: 10967563
    Abstract: The present invention provides a method for reducing a drawing force in a forming process of a photocurable material by adding a radical scavenger capable of terminating free radical polymerization into a substrate for carrying the photocurable material. The method comprises: providing a mold release composition at least comprising a radical scavenger and a molding agent; and forming a mold release film from the mold release composition by curing forming or by combining with an upper surface of a plate, thereby preparing the substrate. In this way, during the light curing reaction of the photocurable material by irradiation with a light source, the radical scavenger in the upper surface of the substrate contacting with the photocurable material can react with free radicals in the photocurable material, such that the photocurable material forms an uncured layer for which light curing does not occur on the upper surface of the substrate.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: April 6, 2021
    Assignee: National Taiwan University of Science and Technology
    Inventors: Jeng-Ywan Jeng, Yih-Lin Cheng, Ding-Shyan Chen, Zhen-You Chen
  • Publication number: 20200032033
    Abstract: The present invention provides a method for reducing a drawing force in a forming process of a photocurable material by adding a radical scavenger capable of terminating free radical polymerization into a substrate for carrying the photocurable material. The method comprises: providing a mold release composition at least comprising a radical scavenger and a molding agent; and forming a mold release film from the mold release composition by curing forming or by combining with an upper surface of a plate, thereby preparing the substrate. In this way, during the light curing reaction of the photocurable material by irradiation with a light source, the radical scavenger in the upper surface of the substrate contacting with the photocurable material can re act with free radicals in the photocurable material, such that the photocurable material forms an uncured layer for which light curing does not occur on the upper surface of the substrate.
    Type: Application
    Filed: November 27, 2018
    Publication date: January 30, 2020
    Inventors: Jeng-Ywan Jeng, Yih-Lin Cheng, Ding-Shyan Chen, Zhen-You Chen