Polyurethane-type adhesives containing nonaqueous solutions of acrylate polymers

An adhesive composition comprising the reaction product of (1) a true solution of (a) from about 10 to about 70 weight percent of a copolymer consisting essentially of (i) from about 45 to about 95 weight percent of an alkyl acrylate or alkyl methacrylate or mixture thereof, (ii) from about 5 to about 55 weight percent of a hydroxyalkyl acrylate, and (iii) up to 50 weight percent of another monomer or mixture of other monomers selected from the group consisting of aliphatic conjugated dienes, monovinylidene aromatic monomers, .alpha.,.beta.-ethylenically unsaturated carboxylic acids, .alpha.,.beta.-ethylenically unsaturated nitriles and amides, vinyl esters, vinyl ethers, vinyl ketones, and vinyl and vinylidene halides, in (b) from about 30 to about 88 weight percent of a polyahl having a molecular wieght of at least 200, with (c) from about 2 to about 20 weight percent of a polyahl chain extender having a molecular weight less than 200, and (2) an organic polyisocyanate in an amount sufficient to react with essentially all of the active hydrogen moieties of the HMW polyahl and the LMW polyahl, said copolymer and polyahl chain extender being present in amounts effective to substantially increase the lap shear strength or impact strength over that of a comparable adhesive containing no copolymer, said copolymer having a number average molecular weight (M.sub.n) of at least 3500.