The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2009
Filed:
Dec. 15, 2004
Martin Melchiors, Leichlingen, DE;
Thomas Münzmay, Dormagen, DE;
Thomas Stingl, Montabaur, DE;
Hartmut Ottensmann, Düsseldorf, DE;
Martin Melchiors, Leichlingen, DE;
Thomas Münzmay, Dormagen, DE;
Thomas Stingl, Montabaur, DE;
Hartmut Ottensmann, Düsseldorf, DE;
Bayer MaterialScience AG, Leverkusen, DE;
Abstract
Aqueous, hydroxy-functional binder dispersions with a low solvent content and based on hydroxy-functional copolymers. The binders are prepared by subjecting one or more vinyl monomer mixtures containing OH-free (meth)acrylic esters and/or vinylaromatics, hydroxy-functional vinyl monomers and/or hydroxy-functional (meth)acrylic esters, and ionic and/or potentially ionic monomers capable of free-radical copolymerization, to free-radical polymerization in the presence of at least one compound containing lactone groups and subsequently dispersing the resultant copolymer before or after addition of a neutralizing agent in water. The binder combinations can be used in coating materials.