A structural polyurethane adhesive contains a polyisocyanate component and a polyol component. The polyisocyanate component contains an isocyanate group-terminated urethane prepolymer that is a reaction product of a first material polyisocyanate containing an aromatic polyisocyanate and a first material polyol containing a macropolyol. The polyol component contains: a hydroxyl group-terminated urethane prepolymer that is a reaction product of a second material polyisocyanate containing an araliphatic polyisocyanate and/or an alicyclic polyisocyanate and a second material polyol containing a macropolyol; and a low molecular-weight polyol.

In the field of polyisocyanate compositions for the production of coatings and adhesives, the disclosed composition combines a polyisocyanate compound with biuret motifs, a protic, polar reactive diluent compound, one of the addition compounds thereof, and an aprotic reactive diluent compound. Also disclosed is a method for producing the composition, and to the use thereof for producing a coating or an adhesive.

A process for forming a conventional flexible polyurethane foam includes providing a polyol component including a PIPA polyol that is a dispersion having a solids content from 10% to 75 wt %, based on a total weight of the PIPA polyol, providing an isocyanate component that includes at least one polyisocyanate, providing an additive component that includes a catalyst, and forming a reaction mixture including the polyol component, the isocyanate component, and the additive component to form a flexible polyurethane foam with a resiliency value below 45%. The reaction mixture has an isocyanate index from 90 to 150. The PIPA polyol is a reaction product of a mixture including at least a low equivalent weight polyol having a number average hydroxyl equivalent weight of less than 80, a polyisocyanate compound having a number average isocyanate equivalent weight that is less than 225, and a liquid base poly ether polyol having a number average hydroxyl equivalent weight from 200 to 1500 and at least 80% of secondary hydroxyl groups based on a total amount of hydroxyl groups in the liquid base polyether polyol.

An aqueous dispersion of capsules, comprise a polymeric shell surrounding a core, the core comprises an oligomer or polymer having at least 3 repeating units comprising a functional group according to general formula (I), (II) or (III) The dispersion of the capsules can be incorporated in an aqueous pigmented inkjet ink. ##STR00001##