Patents by Inventor Thimo Lothert

Thimo Lothert 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).

  • Process for the production of multi-layer coatings comprising a waterborne primer-surfacer layer and a topcoat applied thereto
    Patent number: 7166331
    Abstract: A process for producing multi-layer coatings comprising a waterborne primer-surfacer layer and a topcoat applied thereto on substrates, in which a waterborne primer-surfacer layer is applied from a waterborne primer-surfacer to substrates and baked and then a topcoat is applied, wherein the waterborne primer-surfacer has a binder solids content with a hydroxyl number of 100 to 250 mg KOH/g and contains free or blocked polyisocyanate as a curing agent (crosslinking agent) for the hydroxy-functional binder(s) in a molar ratio of OH/NCO of more than 2:1 to 5:1, and wherein, after it has been applied and before baking, the waterborne primer-surfacer layer is allowed to evaporate for 30 to 300 seconds at 15 to 40° C.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: January 23, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Michael Becker, Werner Bosch, Thimo Lothert
  • Process for the production of multilayer coatings comprising a waterborne primer-surfacer layer and a topcoat applied thereto
    Publication number: 20050249881
    Abstract: A process for producing multi-layer coatings comprising a waterborne primer-surfacer layer and a topcoat applied thereto on substrates, in which a waterborne primer-surfacer layer is applied from a waterborne primer-surfacer to substrates and baked and then a topcoat is applied, wherein the waterborne primer-surfacer has a binder solids content with a hydroxyl number of 100 to 250 mg KOH/g and contains free or blocked polyisocyanate as a curing agent (crosslinking agent) for the hydroxy-functional binder(s) in a molar ratio of OH/NCO of more than 2:1 to 5:1, and wherein, after it has been applied and before baking, the waterborne primer-surfacer layer is allowed to evaporate for 30 to 300 seconds at 15 to 40° C.
    Type: Application
    Filed: May 10, 2004
    Publication date: November 10, 2005
    Inventors: Michael Becker, Werner Bosch, Thimo Lothert