Abstract: The present invention relates to a method for purifying polyaspartic acid ester compositions and to the provision of polyaspartic acid ester compositions that contain 0.01 to <2% by weight fumaric acid dialkyl esters.

Abstract: The application relates to a process for continuously producing aqueous polyurethane dispersions, which is characterized by the use of micro structured mixing elements and addition of water twice during the dispersion step. The energy input in the mixing of the dispersion is low. In addition, the application describes an apparatus suitable for execution of the aforementioned process.

Abstract: The present invention relates to a method for purifying polyaspartic acid ester compositions and to the provision of polyaspartic acid ester compositions that contain 0.01 to <2% by weight fumaric acid dialkyl esters.

Abstract: The invention relates to a method for producing aqueous polyurethane-polyurea dispersions, aqueous polyurethane-polyurea dispersions produced by this method and their use to produce coating agents and adhesives.

Abstract: The present invention relates to a method for the continuous production of water-dispersible vinyl polymers, comprising the step of mixing at least a first and a second component and then passing the mixed components through a first delay section, the first component comprising at least one radically polymerizable, hydroxyl group-containing monomer and the second component comprising at least one initiator. The first delay section comprises at least one mixing element selected from the group consisting of static mixing elements and dynamic mixing elements and has a heat transfer rate of ?10 kW/(K m3) to ?750 k W/(K m3). The invention further concerns a water-dispersible vinyl polymer, obtainable by a method according to the invention, the use of the polymers according to the invention for the manufacturing of coatings, adhesives or sealants and an article coated with a cross-linked polymer according to the invention.

Abstract: The invention relates to a method for producing aqueous polyurethane-polyurea dispersions, aqueous polyurethane-polyurea dispersions produced by this method and their use to produce coating agents and adhesives.

Abstract: The present invention is directed to a novel adhesive which is a mixture ofA) at least one aqueous dispersion of a polymer which has a softening point below 70.degree. C., said dispersion containing 5 to 70% by weight solids and having a film-forming temperature below 70.degree. C., andB) at least one aqueous dispersion of a polymer based on olefinically unsaturated monomers having a softening point is above 70.degree. C., said dispersion containing 5 to 70% by weight solids,wherein the weight ratio of dispersion A) to dispersion B) is from 97:3 to 60:40, based on the solids content of said dispersions.