Patents by Inventor Joseph Albert Antonelli

Joseph Albert Antonelli 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).

  • Patent number: 6107392
    Abstract: An aqueous coating composition comprising a dispersed graft copolymer characterized by macromonomers attached at a terminal end thereof to a polymeric backbone which is acid functional, wherein the functional groups have been neutralized. Such compositions provide improved properties for an automotive finish.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: August 22, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Joseph Albert Antonelli, Robert J Barsotti, Lee Edwin Allen Becton, Christopher Scopazzi
  • Patent number: 5770646
    Abstract: A waterbased dispersion useful for forming aqueous coating compositions containing dispersed hydrophobic material, an aqueous carrier and a branched polymer dispersant (binder);the branched polymer has a weight average molecular weight of about 5,000-100,000 and contains 20-80% by weight of a hydrophilic backbone and correspondingly 80-20% by weight of macromonomer side chains; wherein the backbone is of polymerized ethylenically unsaturated monomers and 2-30% by weight, based on the weight of the backbone of polymerized ethylenically unsaturated monomers having an acid-functional group; and wherein at least 10% of the acid-functional groups are neutralized with an amine or an inorganic base and is hydrophilic in comparison to the side chains; andthe side chains are of macromonomers of polymerized ethylenically unsaturated monomers that are polymerized into the backbone via an ethylenically unsaturated group and the macromonomers have a weight average molecular weight of about 1,000-30,000 and wherein the wei
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: June 23, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Joseph Albert Antonelli, Christopher Scopazzi, Kerstin Stranimaier
  • Patent number: 5770648
    Abstract: A waterbased dispersion useful for forming aqueous coating composition containing dispersed pigment, an aqueous carrier and a branched polymer dispersant (binder);the branched polymer has a weight average molecular weight of about 5,000-100,000 and contains 20-80% by weight of a hydrophilic backbone and correspondingly 80-20% by weight of macromonomer side chains; whereinthe backbone is of polymerized ethylenically unsaturated monomers and 2-30% by weight, based on the weight of the backbone of polymerized ethylenically unsaturated monomers having an acid-functional group; and wherein at least 10% of the acid-functional groups are neutralized with an amine or an inorganic base and is hydrophilic in comparison to the side chains;the side chains are of macromonomers of polymerized ethylenically unsaturated monomers that are polymerized into the backbone via an ethylenically unsaturated group and the macromonomers have a weight average molecular weight of about 1,000-30,000 and wherein the weight ratio of pigmen
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: June 23, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Joseph Albert Antonelli, Henry L. Jakubauskas, Christopher Scopazzi
  • Patent number: 5667894
    Abstract: An improved aqueous cathodic electrocoating composition having a binder of an epoxy-amine adduct which is of an epoxy resin that has been reacted with an amine, and a blocked polyisocyanate crosslinking agent; wherein the improvement is the use of an alkane sulfonic acid as the neutralizing agent for the epoxy amine adduct to provide an electrocoating composition having improved throw power.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: September 16, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Joseph Albert Antonelli, Christopher Scopazzi, William Bertus Vanderlinde