Erasable Surface Patents (Class 106/32.5)
  • Publication number: 20140186531
    Abstract: The invention relates generally to compositions for generating ‘on-demand’ dry-erase writing surfaces, fluid applicators for applying same to a supporting surface, and methods of generating same and methods of making dry-erase written markings on the same.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 3, 2014
    Applicant: SANFORD, L.P.
    Inventors: Wing Sum Vincent Kwan, Xiaomang Wang
  • Patent number: 8686091
    Abstract: Water-based coatings having writable-erasable surfaces are provided. The coatings have many desirable attributes. For example, the coatings cure under ambient conditions, have low or no VOC emissions during and upon curing, and have reduced tendency to form ghost images, even after prolonged normal use.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: April 1, 2014
    Assignee: IdeaPaint, Inc.
    Inventors: John Goscha, Martin Douglas Donbrosky, Jr.
  • Patent number: 8309653
    Abstract: Water-based coatings having writable-erasable surfaces are provided. The coatings have many desirable attributes. For example, the coatings cure under ambient conditions, have low or no VOC emissions during and upon curing, and have reduced tendency to form ghost images, even after prolonged normal use.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: November 13, 2012
    Assignee: IdeaPaint, Inc.
    Inventors: John Goscha, Martin Douglas Donbrosky, Jr.
  • Patent number: 8303749
    Abstract: The present invention is related to a method for manufacturing composite film. The method includes the following steps: a substrate is provided; an interface agent is uniformly spread on the substrate; a silicone compound is uniformly spread on the interface agent; a first mold processed with sandblasting is provided; the substrate and the silicone compound are disposed inside the first mold so that the silicone compound is contacted to the inner surface of the first mold; the substrate and the silicone compound are vulcanized by a predetermined time; afterward, a composite film with a writing layer and the substrate is formed. The present invention is characterized in that the silicone compound is uniformly mixed with 37.5% of first silicone, 37.5% of second silicone and 25% of dimethicone; the glass sand is composed of particles with diameter of 75±25 ?m and 125±25 ?m by proportion of 1:9.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: November 6, 2012
    Inventor: Chien-Hung Lee
  • Patent number: 6379001
    Abstract: There is provided an image display apparatus and an image erasing method, by which a color image made of an ink can be displayed by fixing the ink on the recording medium, and, when it is desired to erase the color image, the color image on the recording medium can be erased by image erasing means. Therefore, the present invention comprises ink application means 1 for applying an ink onto recording medium 10 in accordance with image data, and image erasing means 4 for erasing the image formed on recording medium 10 by ink application means 1, wherein, when the solubility parameter (SP value) of the substance remaining on recording medium 10 after applying the ink is taken as SPp, the SP value of the substance constituting the surface of the recording medium is taken as SPm, and the SP value of the substance constituting the surface of the image erasing means is taken as SPc, said SPp, SPm and SPc satisfy the relationship |SPp−SPm|>|SPp−SPc|.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: April 30, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshinori Tomida, Satoshi Yoshihara, Yoshio Hotta