Patents by Inventor Hoa Dang

Hoa Dang 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).

  • Publication number: 20070138667
    Abstract: A composition adapted for use in an in-situ coating process for coating an optical surface for ophthalmic applications. A coating composition according to the present invention includes at least one multifunctional acrylate compound which is cured onto a heated surface with controlled coating distribution in an ophthalmic injection mold. For example, the composition may include an acrylic base cured with an initiator, e.g., t-butyl perbenzoate, and may further include at least one catalyst and at least one metal salt. An acrylic base according to the present invention may include a combination of monofunctional and/or multifunctional acrylate and/or methacrylate compounds.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Inventors: Hoa Dang, Sheila Tatman
  • Publication number: 20070026237
    Abstract: A substrate having at least one main surface comprising a first coating deposited on said main surface and a second coating having anti-soiling properties deposited and adhering on the surface of said first coating, the first coating being a (meth)acrylate based coating and being obtained by polymerizing a polymerizable composition comprising: i) at least one (meth)acrylate compound and ii) at least one compound I having at least one—M-Z? bond with M representing Si or a Metal atom, Z? representing OH or a hydrolysable group, and at least one ethylenic unsaturated group or epoxy group, and/or iii) at least one silica or metal oxide colloid having free ethylenically unsaturated groups; and the second coating, having anti-soiling properties, being obtained by depositing on said first coating an anti-soiling coating composition comprising at least one compound II, or a hydrolyzate thereof, having at least one—Si-Z? group with Z? representing OH or a hydrolysable group.
    Type: Application
    Filed: October 21, 2005
    Publication date: February 1, 2007
    Applicant: ESSILOR INTERNATIONAL COMPAGNIE GENERALE D'OPTIQUE
    Inventors: Hoa Dang, Yannick Moysan
  • Publication number: 20050008774
    Abstract: A method that includes providing a lens having a first side, a second side, and an anti-reflective or mirror coating on the first side; depositing a heat-curable coating on the second side of the lens; and heating the heat-curable coating without damaging the anti-reflective or mirror coating. Another method that includes providing a non-pure polycarbonate lens having a first side, a second side, and a first coating on the first side; depositing a heat-curable coating on the second side of the lens; and heating the heat-curable coating without damaging the first coating. Other methods are also disclosed.
    Type: Application
    Filed: May 13, 2004
    Publication date: January 13, 2005
    Inventors: Narendra Borgharkar, Cindy Burnshire, Sheila Tatman, Hoa Dang, Sidney White