The present disclosure provides a primer composition. In an embodiment, the primer composition includes a functionalized polyolefin, a functionalized styrenic block copolymer containing greater than or equal to 20 wt % polymerized styrene, a solvent composition and an isocyanate component. The primer composition is suitable for use as an adhesive layer between a substrate and a polyolefin layer.

A functionalized polyurethane polymer is provided, the polymer defined by the formula

##STR00001##

where each R is independently derived from a diisocyanate, where each R represents the soft segment of the polymer, where n is the number of repeat units within the soft segment of the polymer, where m is the number of repeating mer units in the polymer, where each E is a pendant-functionalized amide unit chain extender, wherein the nitrogen atom of the amide group is part of the polymer backbone. A method for preparing the polymer is also provided.

A novel activator composition having good storage stability and capable of providing a long open time and good adhesion performance in combination with an adhesive, an adhesive system comprising the composition, and a method of bonding substrates together using the activator composition or the adhesive system.

The present disclosure provides a primer composition. In an embodiment, the primer composition includes a functionalized polyolefin, a functionalized styrenic block copolymer containing greater than or equal to 20 wt % polymerized styrene, a solvent composition and an isocyanate component. The primer composition is suitable for use as an adhesive layer between a substrate and a polyolefin layer.

The invention relates to an assembly comprising a substrate and a photopolymer film, which are joined to one another partably at least in sections, the substrate comprising polyethylene terephthalate, and the photopolymer film comprising three-dimensionally crosslinked polyurethane matrix polymers, a writing monomer and a photoinitiator, characterized in that the substrate, after seven-day incubation at 23 C. in a 0.5 volume percent butyl acetate solution of the dye of formula (I) ##STR00001##
has an L value L1 and before the incubation an L value of L0, the L values being determined by CieLAB measurements, and the difference between the L values L1 and L0 satisfying the formula (II)
L1L0>0.25(formula II).

The present invention relates to an adhesive promoter composition, containing: at least one film-forming resin; at least one aromatic polyisocyanate; at least one solvent; as well as at least one specific isocyanurate containing silane groups.
Adhesive promoter compositions according to the invention are suitable in particular for improving the adhesion of adhesives and sealants to glass and glass ceramics.

The present invention relates to an adhesive promoter composition, containing: at least one film-forming resin; at least one aromatic polyisocyanate; at least one solvent; as well as at least one specific isocyanurate containing silane groups.

Adhesive promoter compositions according to the invention are suitable in particular for improving the adhesion of adhesives and sealants to glass and glass ceramics.

A cleaning wiper blade comprises a hand grip part and an elastic part. The elastic part comprises a polyurethane. The polyurethane comprises a reactant of a composition including an isocyanate compound which includes diisocyanate and polyfunctional isocyanate, and an alcohol which includes polyfunctional alcohol. The diisocyanate has an aromatic ring in a molecule. When a molecule of the polyurethane is ionized with a mass spectrometer of a direct sample injection system, then obtained M1, M2 and M3 satisfy the is 0.013 to 0.300, and a concentration of the polyfunctional alcohol in the polyurethane is 0.12 mmol/g to 0.65 mmol/g.