The invention relates to a process for the preparation of a RMA crosslinkable composition comprising at least one crosslinkable component comprising reactive components A and B each comprising at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons CH in activated methylene or methine groups and the at least 2 reactive groups of component B are activated unsaturated groups CC and base catalyst C and one or more NH group containing reactivity moderating component D that are also a Michael addition donor reactable with component B under the action of catalyst C, characterized in that the one or more reactivity moderating components D have a melting temperature above 60 C. and is first dissolved in one or more crosslinkable components comprising reactive components A or B and the obtained pre-dissolved product is later mixed with other components of the RMA crosslinkable composition.

Provided are a titanium dioxide aqueous dispersion having high dispersibility and little aggregation or coarse particles, and a method for producing the same. The titanium dioxide aqueous dispersion contains titanium dioxide particles having a hydrophobic compound such as a higher fatty acid or a salt thereof on the surface, an aqueous dispersion medium, a nonionic surfactant having an HLB value of 10 or higher, and a basic compound such as an alkanolamine, and the pH is in the 8.5-13 range. The method for producing a titanium dioxide aqueous dispersion has a step for mixing the titanium dioxide particles having a hydrophobic compound on the surface, the aqueous dispersion medium, the nonionic surfactant having an HLB value of 10 or higher, and the basic compound to bring the pH of the aqueous dispersion into the 8.5-13 range.

The invention relates to a process for the preparation of a RMA crosslinkable composition comprising at least one crosslinkable component comprising reactive components A and B each comprising at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons CH in activated methylene or methine groups and the at least 2 reactive groups of component B are activated unsaturated groups CC and base catalyst C and one or more NH group containing reactivity moderating component D that are also a Michael addition donor reactable with component B under the action of catalyst C, characterized in that the one or more reactivity moderating components D have a melting temperature above 60 C. and is first dissolved in one or more crosslinkable components comprising reactive components A or B and the obtained pre-dissolved product is later mixed with other components of the RMA crosslinkable composition.

A method for applying a RMA crosslinked coating with improved adhesion, comprising the steps of applying on the substrate surface a layer of a modified epoxy primer comprising an epoxy functional polymer binder and a crosslinker, wherein adhesion of the RMA crosslinked coating to the epoxy primer layer is improved by said primer comprising after curing functional groups X reactable with crosslinkable components of the RMA crosslinkable composition or a precursor of functional groups X, preferably a moisture deblockable precursor. The invention also relates to modified epoxy primers, compositions for improving adhesion of epoxy primers and use thereof to improve adhesion of RMA crosslinkable coatings.

The present disclosure relates to a cathodically depositable aqueous electrodeposition coating material including at least one epoxide-amine adduct (a), at least one pigment and/or at least one filler (b), and at least one crosslinking agent (c), a fraction of at least 25 wt % of the crosslinking agent (c), based on the total weight of the crosslinking agent (c), being formed by at least one tris(alkoxycarbonylamino)-1,3,5-triazine; to a method for coating an electrically conductive substrate by cathodic electrodeposition coating using said electrodeposition coating material; to a substrate coated accordingly; and also to a use of a tris(alkoxycarbonylamino)-1,3,5-triazine in a cathodically depositable electrodeposition coating material for reducing or eliminating the sensitivity to disruption of the electrodeposition coating bath toward impurities present therein through phosphates and/or through other metal salts which have been carried into the electrodeposition coating bath as a result of pretreatment steps ahead of the electrodeposition coating.

The present disclosure is directed to compositions having lecithin and an organic acid and related methods. The disclosed compositions may also include one or more co-surfactants such as anionic surfactants and/or non-ionic surfactants, and may be used as a dispersant.

A method for increasing a detection distance of a surface of an object illuminated by near-IR electromagnetic radiation, including: (a) directing near-IR electromagnetic radiation from a near-IR electromagnetic radiation source towards an object at least partially coated with a near-IR reflective coating that increases a near-IR electromagnetic radiation detection distance by at least 15% as measured at a wavelength in a near-IR range as compared to the same object coated with a color matched coating which absorbs more of the same near-IR radiation, where the color matched coating has a E color matched value of 1.5 or less when compared to the near-IR reflective coating; and (b) detecting reflected near-IR electromagnetic radiation reflected from the near-IR reflective coating. A system for detecting proximity of vehicles is also disclosed.

A dispersion that inorganic oxide microparticles may be dispersed at a high concentration in a solvent, a composition for film formation having high transparency, high refractive index and adhesion to a base layer. Inorganic oxide microparticles wherein an amphiphilic organosilicon compound having one or more selected from a polyoxyethylene group, a polyoxypropylene group, or a polyoxybutylene group as a hydrophilic group, and one or more selected from a C.sub.1-18 alkylene group or a vinylene group as a hydrophobic group bonded to a surface of modified metal oxide colloidal particles (C) having a primary particle diameter of 2 to 100 nm, the modified metal oxide colloidal particles wherein a surface of metal oxide colloidal particles (A) having a primary particle diameter of 2 to 60 nm as a nucleus is coated with a coating material (B) including metal oxide colloidal particles having a primary particle diameter of 1 to 4 nm.

Described herein are an aqueous pigment paste including at least one color pigment (a) and at least one polymer (b) which is preparable by successive radical emulsion polymerization of three monomer mixtures (A), (B) and (C) of olefinically unsaturated monomers in water, an aqueous basecoat material which is preparable by admixing the pigment paste to at least one aqueous binder-containing component suitable for preparing the basecoat material, a method for producing a multicoat paint system using this basecoat material, and use of the polymer (b) for dispersing color pigments within an aqueous pigment paste.

A method for increasing a detection distance of a surface of an object illuminated by near-IR electromagnetic radiation, including: (a) directing near-IR electromagnetic radiation from a near-IR electromagnetic radiation source towards an object at least partially coated with a near-IR reflective coating that increases a near-IR electromagnetic radiation detection distance by at least 15% as measured at a wavelength in a near-IR range as compared to the same object coated with a color matched coating which absorbs more of the same near-IR radiation, where the color matched coating has a E color matched value of 1.5 or less when compared to the near-IR reflective coating; and (b) detecting reflected near-IR electromagnetic radiation reflected from the near-IR reflective coating. A system for detecting proximity of vehicles is also disclosed.