Patents by Inventor Yanhua Yuan

Yanhua Yuan 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).

  • Thermosetting resin for expediting a thermosetting process
    Patent number: 8017671
    Abstract: The present invention discloses a thermosetting resin for expediting a thermosetting process. The thermosetting resin is composed of 100 parts of primary resin formed by mixing a brominized epoxy resin, a tetrafunctional epoxy resin and an epoxy resin with a high bromine content, and other materials including 35 parts of phenolic resin curing agent, 30 parts of tetrabromobisphenol A curing agent, 0.1 part of 2-ethyl-4-methylimidazole, 0.8 part Lewis acid, and 50˜70 parts of solvent, calculated based on every 100 parts of the primary resin by weight. The invention can expedite a thermosetting process and enhance the Tg of prepregs and clad laminates.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: September 13, 2011
    Assignees: ITEQ (WUXI) Electronic Technologies Co., Ltd., ITEQ Corporation
    Inventors: Yanhua Yuan, Meixin Ding
  • THERMOSETTING RESIN FOR EXPEDITING A THERMOSETTING PROCESS
    Publication number: 20100317785
    Abstract: The present invention discloses a thermosetting resin for expediting a thermosetting process. The thermosetting resin is composed of 100 parts of primary resin formed by mixing a brominized epoxy resin, a tetrafunctional epoxy resin and an epoxy resin with a high bromine content, and other materials including 35 parts of phenolic resin curing agent, 30 parts of tetrabromobisphenol A curing agent, 0.1 part of 2-ethyl-4-methylimidazole, 0.8 part Lewis acid, and 50˜70 parts of solvent, calculated based on every 100 parts of the primary resin by weight. The invention can expedite a thermosetting process and enhance the Tg of prepregs and clad laminates.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 16, 2010
    Inventors: Yanhua YUAN, Meixin Ding