Patents by Inventor Weita Yang

Weita Yang 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).

  • Flame retardant crosslink agent and epoxy resin compositions free of halogen and phosphorous
    Publication number: 20080262139
    Abstract: Disclosed is a flame retardant crosslink agent free of halogen and phosphorous. The crosslink agent can be applied in epoxy resin composition, such that the composition achieves V0 under UL-94 standard after curing. The crosslink agent, a novolac structure modified by nitrogen-containing and/or silicon containing compound, may collocate with inorganic powder, such that the thermal cured epoxy resin composition contains thermal retardancy, low expansion, low water uptake, and high glass transfer temperature properties. The epoxy resin composition including the crosslink agent of the invention can be applied in a prepreg used in copper clad laminates or printed circuit plates.
    Type: Application
    Filed: September 12, 2007
    Publication date: October 23, 2008
    Inventors: Hsin-Ho Wu, Weita Yang, Ching Cheng Hsueh