A method of preparing a microcapsule composition include the steps of: (a) providing a microcapsule formed of an encapsulating polymer having a primary or secondary amine group. (b) providing a deposition agent having a reactive group, and (c) forming a covalent bond between the primary or secondary amine group and the reactive group to graft the deposition agent to the encapsulating polymer. Also disclosed are consumer products containing these microcapsules.

The present invention relates to, a curable photochromic composition that includes: (a) a photochromic compound; (b) a polyisocyanate including at least two isocyanate groups; and (c) a reactive component having at least two reactive groups that are each reactive with the isocyanate groups of the polyisocyanate. Each reactive group of the reactive component is independently selected from primary amine and imine, provided that at least one reactive group of the reactive component is selected from imine. The curable photochromic composition further includes (d) a non-reactive component that is free of functional groups that are reactive with the polyisocyanate and said reactive component. The present invention also relates to an article that includes: a substrate; and a photochromic layer over at least one surface of the substrate, where the photochromic layer is formed from the curable photochromic composition of the present invention.

The present invention relates to a process for the preparation of an aminosuccinic resin, and also to the aminosuccinic resin capable of being obtained according to this process, which exhibits an amine value of less than 190 mg KOH/g. Another subject matter of the invention is the use of this aminosuccinic resin in the manufacture of two-component binders containing at least one polyisocyanate.

The present disclosure relates to solvent-borne coating compositions comprising a water-dispersible polyisocyanate, a method of coating a substrate using such compositions, a substrate comprising the cured coating composition, and the use of water-dispersible polyisocyanates in solvent-borne coating compositions for improving chemical, scratch and/or mar resistance of such coatings.

Silicone polyurea block copolymers are prepared by copolymerizing: (a) a diamine composition that includes a polyethylene glycol diamine, and optionally, a dipiperidyl alkane; (b) a monofunctional silicone isocyanate; and (c) a diisocyanate. Compositions useful as passivating coatings comprising the block copolymer are also provided, and substrates coated with the compositions. Methods of preparing and using the compositions are also described.