Patents by Inventor Alfred Jean Paul Buckmann

Alfred Jean Paul Buckmann 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: 7173083
    Abstract: An aqueous composition comprising components: (A) 50 to 99 wt. % of a vinyl polymer(s) having a gradient polymeric morphology; and (B) 1 to 50 wt. % of at least one polymer not having a gradient polymeric morphology, wherein components (A) and (B) add up to 100%.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: February 6, 2007
    Assignee: DSM IP Assets B.V.
    Inventors: Jurgen Scheerder, Tijs Nabuurs, Gerardus Cornelis Overbeek, Alfred Jean Paul Buckmann
  • Publication number: 20040236005
    Abstract: An aqueous composition comprising components: (A) 50 to 99 wt. % of a vinyl polymer(s) having a gradient polymeric morphology; and (B) 1 to 50 wt. % of at least one polymer not having a gradient polymeric morphology, wherein components (A) and (B) add up to 100%.
    Type: Application
    Filed: March 5, 2004
    Publication date: November 25, 2004
    Inventors: Jurgen Scheerder, Tijs Nabuurs, Gerardus Cornelis Overbeek, Alfred Jean Paul Buckmann
  • Publication number: 20040039089
    Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible vinyl oligomer(s) wherein said composition when drying to form a coating has an open time of at least 20 minutes, a wet edge time of at least 10 minutes, a tack free time of ≦20 hours and an equilibrium viscosity of ≦5,000 Pa.s at any solids content when drying in the range of from 20 to 55 wt % using any shear rate in the range of from 9±0.5 to 90±5 s−1 and at 23±2° C.
    Type: Application
    Filed: March 20, 2003
    Publication date: February 26, 2004
    Inventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, John Christopher Padget, Jurgen Scheerder, Tom Annable
  • Publication number: 20040014922
    Abstract: Bulk-modified potting composition based on a curable epoxy resin or on a mixture of these resins, where the resin or the mixture is composed of an epoxy resin, a hardener, where appropriate an accelerator, and also other additives, such as fillers, flexibilizers, and colorants, which potting composition (a) comprises a three-dimensionally crosslinked polysiloxane in disperse form and with a particle size in the range from 0.02 &mgr;m to 50 &mgr;m, which, where appropriate, has reactive groups which can react chemically with the epoxy resin and/or the hardener, (b) a selected linear or branched siloxane compound which has reactive groups which can react chemically with the epoxy resin and/or the hardener, and also, where appropriate, (c) a low-molecular-weight oligomeric siloxane compound, the use of the potting composition as an engineering material or as an insulating material, and the moldings and insulation produced therefrom.
    Type: Application
    Filed: April 4, 2003
    Publication date: January 22, 2004
    Inventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, Johannes Ludovicus Martinus Van Hilst, John Christopher Padget, Pablo Steenwinkel, Tom Annable, Ronald Tennebroek
  • Publication number: 20030191236
    Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible oligomer(s), a dispersed polymer(s) and optionally a non-crosslinkable water-dispersible oligomer wherein the crosslinkable oligomer(s) and non-crosslinkable oligomer(s) comply with Equation 1 as follows: 1 - 15 × 10 4 < L = Mw × PDi 0.8 A × ( 1 + Q ) 0.5 + { ( Mw × PDi 0.8 ) / A } 0.
    Type: Application
    Filed: March 24, 2003
    Publication date: October 9, 2003
    Inventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, Johannes Ludovicus Martinus Van Hilst, Jurgen Scheerder, Pablo Steenwinkel, Ronald Tennenbroek
  • Patent number: 5962571
    Abstract: Process for making organic solvent-free aqueous crosslinkable polymer composition comprising: a) preparing an aqueous solution of an acid-functional oligomer with Tg 10 to 125.degree. C. and having crosslinker functional groups; b) conducting an aqueous emulsion polymerization to make an aqueous emulsion of an olefinic hydrophobic polymer in the presence of the aqueous oligomer solution, the hydrophobic polymer having Tg at least 25.degree. C. below that of the oligomer and optionally crosslinker functional groups, and c) combining with a crosslinking agent reactable with the crosslinker groups of the oligomer and polymer, said composition having Koenig hardness of .gtoreq.40 sec and minimum film forming temperature (MFFT) .ltoreq.55.degree. C. Also the aqueous composition so formed and its use in various applications. The aqueous composition has excellent properties and in particular an advantageous balance of MFFT and Koenig hardness.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: October 5, 1999
    Assignee: Zeneca Resins B.V.
    Inventors: Gerardus Cornelis Overbeek, Yvonne Wilhelmina Smak, Alfred Jean Paul Buckmann
  • Patent number: 5859112
    Abstract: Process for making organic solvent-free aqueous crosslinkable polymer composition comprising: a) preparing an aqueous solution of an acid-functional olgiomer with Tg below 50.degree. C. and having crosslinker functional groups; b) conducting an aqueous emulsion polymerisation to make an aqueous emulsion of an olefinic hydrophobic polymer in the presence of the aqueous oligomer solution, the hydrophobic polymer having Tg at least 25.degree. C. higher than that of the oligomer and optionally crosslinker functional groups, and c) combining with a crosslinking agent reactable with the crosslinker groups of the oligomer and polymer, said composition having Koenig hardness of .gtoreq.40 sec and minimum film forming temperature (MFFT).ltoreq.55.degree. C. Also the aqueous composition so formed and its use in various applications. The aqueous composition has excellent properties and in particular an advantageous balance of MFFT and Koenig hardness.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: January 12, 1999
    Assignees: Zeneca Resins B.V., Zeneca Limited
    Inventors: Gerardus Cornelis Overbeek, Yvonne Wilhelmina Smak, Alfred Jean Paul Buckmann, John Christopher Padget