Patents by Inventor Gabriele Buettner
Gabriele Buettner 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: 10233353Abstract: Waterborne base coat compositions and processes for preparing base coat/clear top coat multi-layer coatings are provided. In an embodiment, a waterborne base coat composition includes water, pigment(s) and resin solids consisting of about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids consisting of about 1 to about 40 wt. % of a urethanized polyester/(meth)acryl copolymer hybrid binder having a hydroxyl number of about 30 to about 200 mg KOH/g and a carboxyl number of about 8 to 50 mg KOH/g, and about 60 to about 99 wt. % of one or more further binders, the sum of the respective wt. % in each case equaling 100 wt. %.Type: GrantFiled: November 14, 2013Date of Patent: March 19, 2019Assignee: AXALTA COATING SYSTEMS IP CO., LLC.Inventors: Carmen Flosbach, Petra Stoffel, Gabriele Buettner
-
Publication number: 20150315414Abstract: Waterborne base coat compositions and processes for preparing base coat/clear top coat multi-layer coatings are provided. In an embodiment, a waterborne base coat composition includes water, pigment(s) and resin solids consisting of about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids consisting of about 1 to about 40 wt. % of a urethanized polyester/(meth)acryl copolymer hybrid binder having a hydroxyl number of about 30 to about 200 mg KOH/g and a carboxyl number of about 8 to 50 mg KOH/g, and about 60 to about 99 wt. % of one or more further binders, the sum of the respective wt. % in each case equaling 100 wt. %.Type: ApplicationFiled: November 14, 2013Publication date: November 5, 2015Applicant: AXALTA COATING SYSTEMS IP CO., LLCInventors: Carmen FLOSBACH, Petra STOFFEL, Gabriele BUETTNER
-
Publication number: 20130261230Abstract: The present invention provides a low-bake powder coating composition comprising A) 10 to 60 wt % of at least one glycidyl-functionalised (meth)acrylic resin, B) 40 to 90 wt % of at least one carboxyl functionalised polyester resin produced by reacting of at least one hydroxyl functionalised polyester resin with cyclic, aliphatic and/or aromatic dicarboxylic acids and/or their anhydrides, and C) 0.01 to 50 wt % of at least one coating additive, pigment and/or filler, Wherein the wt % based on the total weight of the powder coating composition. The powder coating composition of this invention provides compositions which are low-bake compositions providing coatings having high grade of flexibility for outdoor applications. Particularly and surprisingly, the powder coating composition of this invention furthermore provides no blooming of the coatings and excellent flow and appearance properties.Type: ApplicationFiled: September 23, 2011Publication date: October 3, 2013Applicant: U.S. Coatings IP Co., LLCInventors: Carlos Rodriguez-Santamarta, Anne-Lise Michaud, Roger Fugier, Gabriele Buettner, Carmen Flosbach
-
Publication number: 20110160379Abstract: This invention provides a coating composition providing a soft-feel effect and enhanced suntan cream resistance, the composition comprising A) 5 to 50 wt %, preferably 20 to 40 wt %, of an dispersion and/or solution of at least one hydroxyl functional polyurethane, the dispersion and/or solution having a solids content in a range of 25 to 90 wt %, the wt % being based on the weight of the dispersion and/or solution, B) 0 to 35 wt %, preferably 5 to 20 wt %, of at least one polyisocyanate as cross-linking agent, C) 0.1 to 20 wt %, preferably 4 to 15 wt %, of at least one aqueous hydroxyl functional crosslinked (meth) acrylic latex, D) 0 to 20 wt %, preferably 4 to 15 wt %, of organic solvent, and E) 0.1 to 10 wt %, preferably 4 to 10 wt %, of at least one pigment, extender and/or coating additive, the wt % being based on the total weight of the composition of A) to E).Type: ApplicationFiled: November 5, 2010Publication date: June 30, 2011Inventors: GABRIELE BUETTNER, Matthieu Barrere, Joern Vestweber
-
Patent number: 7632386Abstract: A process for producing a CED coating by cathodic electrodeposition of a coating on an electrically conductive substrate in a CED coating bath and thermal cross-linking of the CED coating film obtained, wherein before thermal cross-linking outside of the CED coating bath, the CED coating film is brought into contact with an aqueous preparation of at least one metal compound, wherein the at least one metal compound is a compound of a metal with an oxidation number of +2 or higher and is selected from the group consisting of compounds containing cations of the metal, compounds forming cations of the metal in aqueous medium, compounds containing cations containing the metal, compounds forming cations containing the metal in aqueous medium, compounds comprising outwardly neutral complexes of the metal, colloidal oxide of the metal and colloidal hydroxide of the metal, wherein the metal itself is selected from the group consisting of metals having atomic numbers of 20 to 83 with the express exclusion of chromium,Type: GrantFiled: August 28, 2003Date of Patent: December 15, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Klausjoerg Klein, Gabriele Buettner
-
Publication number: 20090090629Abstract: CED coating compositions which, apart from water, comprise (i) a resin solids content consisting of at least one film-forming, self- or externally cross-linking CED binder and the optional components: cross-linkers, paste resins, nonionic resins, and (ii) optionally, at least one component selected from the group consisting of pigments, fillers, coating additives and organic solvents, and contain relative to the resin solids content thereof, 1 to 20 wt. % of at least one resin A with functional groups selected from the group consisting of hydroxyl groups, free isocyanate groups and blocked isocyanate groups, wherein the at least one resin A is present as particles with melting temperatures from 40 to 200° C.Type: ApplicationFiled: March 6, 2007Publication date: April 9, 2009Inventors: Gabriele Buettner, Andreas Fieberg, Carmen Flosbach, Thomas Grawe, Tanja Renkes
-
Patent number: 7399397Abstract: A process for the production of coated substrates comprising the successive steps of: a) applying a coating composition A? onto one side A? of a metal sheet to form a coating layer A which is electrically insulating when cured and applying a coating composition B? onto the opposite side of the metal sheet to form coating layer B which is electrically conductive when cured, wherein each of the coating compositions A? and B? are applied by coil coating, b) curing the two coating layers A and B, c) removing and shaping sheet metal parts provided with the cured coating layer A on one side A? and with the cured coating layer B on the other side B?, d) optionally, assembling the coated shaped sheet metal parts to form a construction with outwardly directed sides A? and e) electrodepositing an electrodeposition (ED) coating layer onto the electrically conductive surfaces and curing of the ED coating layer.Type: GrantFiled: May 10, 2004Date of Patent: July 15, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Gabriele Buettner, Heinz-Peter Katzmann, Klausjoerg Klein
-
Publication number: 20080154010Abstract: An AED coating composition comprising, apart from water, (A) 1 to 20, relative to the resin solids content of the composition, of at least one resin with functional groups selected from the group consisting of hydroxyl groups, free isocyanate groups and blocked isocyanate groups, the resin is present as particles with melting temperatures from 40 to 200° C., (B) at least one film-forming, self- or externally cross-linking AED binder different from resin (A), and (C) optionally, at least one component selected from the group consisting of cross-linking agents, paste resins, grinding resins, nonionic resins, fillers, pigments, fillers, extenders, coating additives and organic solvents; the AED coating compositions have a distinctly reduced or no edge migration behavior upon deposition and baking.Type: ApplicationFiled: December 19, 2007Publication date: June 26, 2008Inventors: Gabriele Buettner, Andreas Fieberg, Carmen Flosbach, Thomas Grawe, Tanja Renkes
-
Publication number: 20050249883Abstract: A process for the production of coated substrates comprising the successive steps of: a) applying a coating composition A? onto one side A? of a metal sheet to form a coating layer A which is electrically insulating when cured and applying a coating composition B? onto the opposite side of the metal sheet to form coating layer B which is electrically conductive when cured, wherein each of the coating compositions A? and B? are applied by coil coating, b) curing the two coating layers A and B, c) removing and shaping sheet metal parts provided with the cured coating layer A on one side A? and with the cured coating layer B on the other side B?, d) optionally, assembling the coated shaped sheet metal parts to form a construction with outwardly directed sides A? and e) electrodepositing an ED coating layer onto the electrically conductive surfaces and curing of the ED coating layer.Type: ApplicationFiled: May 10, 2004Publication date: November 10, 2005Inventors: Gabriele Buettner, Heinz-Peter Katzmann, Klausjoerg Klein
-
Publication number: 20050045490Abstract: A process for producing a CED coating by cathodic electrodeposition of a coating on an electrically conductive substrate in a CED coating bath and thermal cross-linking of the CED coating film obtained, wherein before thermal cross-linking outside of the CED coating bath, the CED coating film is brought into contact with an aqueous preparation of at least one metal compound, wherein the at least one metal compound is a compound of a metal with an oxidation number of +2 or higher and is selected from the group consisting of compounds containing cations of the metal, compounds forming cations of the metal in aqueous medium, compounds containing cations containing the metal, compounds forming cations containing the metal in aqueous medium, compounds comprising outwardly neutral complexes of the metal, colloidal oxide of the metal and colloidal hydroxide of the metal, wherein the metal itself is selected from the group consisting of metals having atomic numbers of 20 to 83 with the express exclusion of chromium,Type: ApplicationFiled: August 28, 2003Publication date: March 3, 2005Inventors: Klausjoerg Klein, Gabriele Buettner
-
Patent number: 6436260Abstract: This invention is directed to a process for electrocoating bulk articles to provide a corrosion protective coating and comprises the following steps: (1) the bulk articles to be coated are placed in an electrically conductive receiving container and the container and bulk articles are electrocoated with an aqueous electrocoating composition containing a film forming binder and electrically conductive components; (2) baking the coated bulk articles and the receiving container to form an electrically conductive coating on the bulk articles and the container and removing the coated bulk articles from the container; and (3) repeating steps (1) and (2) at least once without any intermediate cleaning of the receiving container having an electrically conductive coating. The advantage of the novel process of this invention is that the receiving container can be used at least twice and up to six times without any intermediate cleaning or removal of the applied electrocoating layer.Type: GrantFiled: November 17, 2000Date of Patent: August 20, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Klaus-Peter Lorenz, Gabriele Buettner, Klausjoerg Klein