Patents by Inventor Tanja Renkes
Tanja Renkes 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).
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Patent number: 9068035Abstract: A liquid coating composition containing a crosslinkable binder A, as an optional component a crosslinker B for the binder A, and a latent catalyst C, wherein C is a carboxyl-functional resin which is present in the liquid coating composition as particles having a melting temperature of 40 to 180° C., measured by DSC at a heating rate of 10 K/min.Type: GrantFiled: February 11, 2011Date of Patent: June 30, 2015Assignee: AXALTA COATING SYSTEMS IP CO., LLCInventors: Tanja Renkes, Carmen Flosbach
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Patent number: 8691006Abstract: Non-aqueous, liquid coating compositions which contain at least one hydroxyl-functional component A, at least one hydroxyl-functional polyurethane resin B differing from the at least one component A and at least one crosslinking agent C with groups reactive towards the hydroxyl groups of A and B, wherein the at least one component A is not solid at room temperature and/or is present in dissolved form and wherein the at least one polyurethane resin B is present as particles having a melting temperature of 40 to 180° C.Type: GrantFiled: September 21, 2006Date of Patent: April 8, 2014Assignee: Axalta Coating Systems IP Co., LLCInventors: Carmen Flosbach, Tanja Renkes, Wiebke Becker
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Patent number: 8518173Abstract: A liquid coating composition comprising a resin solids content comprising (i) a binder solids content comprising at least one hydroxyl-functional binder A and 0.5 to less than 5 wt. % of at least one polyurethane resin B with functional groups selected from the group consisting of hydroxyl groups, free isocyanate groups and blocked isocyanate groups and (ii) at least one cross-linker C, wherein the at least one polyurethane resin B is present as particles having a melting temperature of 40 to 200° C.Type: GrantFiled: April 26, 2007Date of Patent: August 27, 2013Inventors: Carmen Flosbach, Olaf Ley, Tanja Renkes
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Publication number: 20120308730Abstract: A liquid coating composition containing a crosslinkable binder A, as an optional component a crosslinker B for the binder A, and a latent catalyst C, wherein C is a carboxyl-functional resin which is present in the liquid coating composition as particles having a melting temperature of 40 to 180° C., measured by DSC at a heating rate of 10 K/min.Type: ApplicationFiled: February 11, 2011Publication date: December 6, 2012Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Tanja Renkes, Carmen Flosbach
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Publication number: 20110200756Abstract: A liquid coating composition comprising a resin solids content comprising (i) a binder solids content comprising at least one hydroxyl-functional binder A and 0.5 to less than 5 wt. % of at least one polyurethane resin B with functional groups selected from the group consisting of hydroxyl groups, free isocyanate groups and blocked isocyanate groups and (ii) at least one cross-linker C, wherein the at least one polyurethane resin B is present as particles having a melting temperature of 40 to 200° C.Type: ApplicationFiled: April 26, 2007Publication date: August 18, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Carmen Flosbach, Olaf Ley, Tanja Renkes
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Patent number: 7888439Abstract: A process for the production of aqueous binder latices by multistage emulsion polymerization in the aqueous phase, comprising the successive steps: 1) free-radical polymerization of a monomer mixture A comprising acidic monomers in a proportion corresponding to an acid value of 10 to 100 mg of KOH/g and olefinically polyunsaturated monomers in a proportion of 0.5 to 5 wt %, 2) neutralization of acid groups of the polymer formed in process step 1) and 3) free-radical polymerization of at least one monomer mixture B comprising acidic monomers in a proportion corresponding to an acid value of mixture(s) B of 0 to below 5 mg of KOH/g, hydroxyl-functional monomers in a proportion corresponding to a hydroxyl value of mixture(s) B of 0 to below 5 mg of KOH/g and olefinically polyunsaturated monomers in a proportion of 0.Type: GrantFiled: April 7, 2008Date of Patent: February 15, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Tanja Renkes, Frank Tessari, Matthieu Barrere
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Publication number: 20100130680Abstract: A process for the production of aqueous binder latices by multistage emulsion polymerization in the aqueous phase, comprising the successive steps: 1) free-radical polymerization of a monomer mixture A comprising acidic monomers in a proportion corresponding to an acid value of 10 to 100 mg of KOH/g and olefinically polyunsaturated monomers in a proportion of 0.5 to 5 wt %, 2) neutralization of acid groups of the polymer formed in process step 1) and 3) free-radical polymerization of at least one monomer mixture B comprising acidic monomers in a proportion corresponding to an acid value of mixture(s) B of 0 to below 5 mg of KOH/g, hydroxyl-functional monomers in a proportion corresponding to a hydroxyl value of mixture(s) B of 0 to below 5 mg of KOH/g and olefinically polyunsaturated monomers in a proportion of 0.Type: ApplicationFiled: April 7, 2008Publication date: May 27, 2010Inventors: Tanja Renkes, Frank Tessari, Matthieu Barrere
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Publication number: 20100120986Abstract: A process for the production of aqueous binder latices by multistage emulsion polymerization in the aqueous phase, comprising the successive steps: 1) free-radical polymerization of a monomer mixture A comprising acidic monomers in a proportion corresponding to an acid value of 10 to 100 mg of KOH/g and olefinically polyunsaturated monomers in a proportion of 0.5 to 5 wt %, 2) neutralization of acid groups of the polymer formed in process step 1) and 3) free-radical polymerization of at least one monomer mixture B comprising acidic monomers in a proportion corresponding to an acid value of mixture(s) B of 0 to below 5 mg of KOH/g, hydroxyl-functional monomers in a proportion corresponding to a hydroxyl value of mixture(s) B of 0 to below 5 mg of KOH/g and olefinically polyunsaturated monomers in a proportion of 0.5 to 5 wt %, wherein mixture A and/or the at least one mixture B comprise at least one aromatic monomer in a total proportion of 10 to 50 wt.Type: ApplicationFiled: April 7, 2008Publication date: May 13, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Tanja Renkes, Frank Tessari, Matthieu Barrere
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Patent number: 7714062Abstract: A powder coating composition comprising (A) at least one hydroxyl functional polyurethane resin binder, and (B) at least one polyurethane resin as cross-linking agent containing blocked isocyanate groups, wherein the at least one hydroxyl functional polyurethane resin binder (A) and the at least one polyurethane resin (B) both having a melting temperature of 60 to 180° C., in particular, 80 to 160° C.; the powder coating composition makes it possible to achieve a low melt viscosity and an excellent processability along with a good storage stability and in particular, to form thin films of the coating layers having high flexibility in combination with an excellent weather resistance.Type: GrantFiled: December 18, 2007Date of Patent: May 11, 2010Inventors: Carmen Flosbach, Kristina Iland, Tanja Renkes
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Publication number: 20100113675Abstract: A process for the production of aqueous binder latices by multistage emulsion polymerization in the aqueous phase, comprising the successive steps: 1) free-radical polymerization of a monomer mixture A comprising acidic monomers in a proportion corresponding to an acid value of 10 to 100 mg of KOH/g and olefinically polyunsaturated monomers in a proportion of 0.5 to 5 wt %, 2) neutralization of acid groups of the polymer formed in process step 1) and 3) free-radical polymerization of at least one monomer mixture B comprising acidic monomers in a proportion corresponding to an acid value of mixture(s) B of 0 to below 5 mg of KOH/g, hydroxyl-functional monomers in a proportion corresponding to a hydroxyl value of mixture(s) B of 0 to below 5 mg of KOH/g and olefinically polyunsaturated monomers in a proportion of 0.Type: ApplicationFiled: April 7, 2008Publication date: May 6, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Tanja Renkes, Frank Tessari, Matthieu Barrere
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Publication number: 20090317552Abstract: Non-aqueous, liquid coating compositions which contain at least one hydroxyl-functional polyurethane resin A as the only hydroxyl-functional binder(s) and at least one crosslinking agent B with groups reactive with the hydroxyl groups of A, wherein the at least one polyurethane resin A is present as particles having a melting temperature of 40 to 180° C.Type: ApplicationFiled: January 9, 2007Publication date: December 24, 2009Inventors: Carmen Flosbach, Thomas Fey, Tanja Renkes
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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
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Publication number: 20090035471Abstract: Non-aqueous, liquid coating compositions which contain at least one hydroxyl-functional component A, at least one hydroxyl-functional polyurethane resin B differing from the at least one component A and at least one crosslinking agent C with groups reactive towards the hydroxyl groups of A and B, wherein the at least one component A is not solid at room temperature and/or is present in dissolved form and wherein the at least one polyurethane resin B is present as particles having a melting temperature of 40 to 180° C.Type: ApplicationFiled: September 21, 2006Publication date: February 5, 2009Inventors: Carmen Flosbach, Tanja Renkes, Wiebke Becker
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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
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Publication number: 20080152900Abstract: A powder coating composition comprising (A) at least one hydroxyl functional polyurethane resin binder, and (B) at least one polyurethane resin as cross-linking agent containing blocked isocyanate groups, wherein the at least one hydroxyl functional polyurethane resin binder (A) and the at least one polyurethane resin (B) both having a melting temperature of 60 to 180° C., in particular, 80 to 160° C.; the powder coating composition makes it possible to achieve a low melt viscosity and an excellent processability along with a good storage stability and in particular, to form thin films of the coating layers having high flexibility in combination with an excellent weather resistance.Type: ApplicationFiled: December 18, 2007Publication date: June 26, 2008Inventors: Carmen Flosbach, Kristina Iland, Tanja Renkes
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Publication number: 20070185266Abstract: Non-aqueous, liquid coating compositions curable by free-radical polymerization of olefinic double bonds with a resin solids content consisting of 50 to 100 wt. % of a binder solids content curable by free-radical polymerization of olefinic double bonds, 0 to 30 wt. % of one or more crosslinking agents C and 0 to 50 wt. % of one or more components D, wherein the weight percentages add up to 100 wt. %, wherein the binder solids content consists of above 95 wt. % to 99.5 wt. % of one or more components A curable by free-radical polymerization of olefinic double bonds and 0.5 to below 5 wt. % of one or more polyurethane resins B curable by free-radical polymerization of olefinic double bonds, wherein the weight percentages of the at least one component A and the at least one polyurethane resin B add up to 100 wt.Type: ApplicationFiled: February 7, 2006Publication date: August 9, 2007Inventors: Carmen Flosbach, Tanja Renkes