Patents by Inventor Jan E. Van Havenbergh

Jan E. Van Havenbergh 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: 5466541
    Abstract: A coating composition suitable for forming an adhesive primer layer on a hydrophobic polyester resin support, wherein said coating composition essentially consists of (an) addition polymerizable monomer or mixture of such monomers having dissolved therein at least one of the polymers (i) and/or (ii), wherein:(i) is a linear copolyester of isophthalic acid and at least one other dibasic carboxylic acid with an aliphatic diol, said copolyester being soluble in methyl methacrylate for at least 10 g per 100 ml at 20.degree. C., and/or(ii) is a linear polyester of terephthalic acid and/or isophthalic acid with an oxyalkylated bisphenol, said polyester being soluble in methyl methacrylate for at least 10 g per 100 ml at 20.degree. C., and wherein said composition comprises said monomer(s) acting as solvent(s) for polymers (i) and/or (ii) in a 20 to 70% by weight ratio with respect to the totality of said polymer(s) and monomer(s).
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: November 14, 1995
    Assignee: AGFA-Gevaert. N.V.
    Inventors: Jan E. Van Havenbergh, Jozef R. Aertbelien, Philip Dooms
  • Patent number: 4828927
    Abstract: A sheet or web comprising a substrate which is composed of or coated with a hydrophobic resin and carries an antistatic layer, characterized in that the antistatic layer consists essentially of a blockcopolyetherester of dibasic carboxylic acid(s) esterified with ethylene glycol and with a polyoxyethylene glycol having an average molecular weight in the range 1,000 to 10,000, at least 20% by weight of such blockcopolyetherester being constituted by polyoxyethylene-ester chain parts.
    Type: Grant
    Filed: April 21, 1987
    Date of Patent: May 9, 1989
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Daniel M. Timmerman, August M. Marien, Jan E. Van Havenbergh, Etienne A. Van Thillo