Abstract: Compositions comprising (A) non-branched polybutadiene having terminal hydroxyl functionality less than 2 per molecule by average; and (B) branched polybutadiene having terminal hydroxyl functionality more than 2 per molecule by average; the weight ratio of (A) to (B) being about 99:1 to 1:99. These compositions are reacted with organic polyisocyanates to form prepolymers which are cured by reaction with a chain extender such as a diol to produce cured resins which exhibit unexpectedly improved tear strength properties and themoplasticity with high modulus, and improved tackiness and shelf life for hot melt adhesives. The prepolymers have lower viscosity and better storage stability as compared with those from conventional branched polybutadienes of the (B) type. Alternatively, the compositions can be cured directly in a one-shot reaction with diisocyanates to form a polyurethane with the described combination of properties.

Abstract: Radiation curable compositions for coatings, adhesives, inks, and molded articles are disclosed.

Abstract: Compounds of the formula wherein R1=H, CH3 R2=H, CH3, CH2CH3, or CH2CH2CH3 n=1-10 X=halogen, (C1-C6) alkyl, (C1-C6) alkoxy, or aromatic radical are shown to be useful as coupling agents or adhesion promotors in free radically curable compositions such as UV curable and peroxide curable (meth)acrylate based coating compositions. The associated methods, curable compositions, coatings, adhesives and coated articles are also disclosed.

Abstract: A urethane (meth)acrylate metal salt obtained by reacting (A) one or more polyisocyanates, (B) one or more hydroxy functional (meth)acrylates, and (C) one or more metal salt polyols which are the reaction product of a metal oxide and a half ester containing a hydroxy group and a carboxylic acid group. Processes of preparing such salts and polymers prepared from such salts are also disclosed. The polymers are useful for coating and adhesive compositions prepared by radiation or peroxide curing processes.