Lani S. Kangas - Woodbury MN
Mieczyslaw H. Mazurek - Roseville MN
Kurt C. Melancon - White Bear Lake MN
Walter R. Romanko - Austin TX
Audrey A. Sherman - St. Paul MN
3M Innovative Properties Company - St. Paul MN
A tackified composition comprising (a) a polydiorgannosiloxane polyurea segmented copolymer comprising the reaction product of (i) at least one polyaminie, wherein the polyamine comprises at least one polydiorganosiloxane diamine, or a mixture of at least one polydiorganosiloxane diamine and at least one organic polyamine, and (ii) at least one polyisocyanate, wherein the mol ratio of isocyanate to amined is between 0. 9:1 and 0. 95:1 or between 1. 05:1 and about 1. 3:1, and (b) silicate resins. The tackified compositions are useful as pressure sensitive adhesives, particularly for foamed backing tapes, medical tapes and the like, hot melt adhesives, vibration dampers, anti-corrosive materials.