Patents Represented by Attorney Ralph D'Alessamdro

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  • Radiation curable compositions useful in image projection systems
    Patent number: 7358283
    Abstract: A radiation curable composition comprising: A) at least one urethane poly(meth) acrylate compound; B) at least one poly(meth)acrylate compound; C) at least one polyester poly(meth)acrylate compound; D) at least one silicone poly(meth)acrylate compound; E) at least one visible light range free radial photopolymerization initiator; and F) at least one UV light range free radical polymerization initiator.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: April 15, 2008
    Assignee: 3D Systems, Inc.
    Inventor: Pingyong Xu