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Assignee3M Innovative Properties Company
InventorsAudrey A. Sherman, Kurt C. Melancon, Walter R. Romanko, Mieczyslaw H. Mazurek, Albert I. Everaerts
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Tackified compositions comprise a curable polydiorganosiloxane oligourea segmented copolymer which has alternating soft polydiorganosiloxane units and hard diisocyanate residues, the diisocyanate residue being the diisocyanate minus the —NCO groups. The units are connected together by urea linkages and the copolymer has end groups that are reactive under free radical or moisture cure conditions, and silicate resin. Also provided are pressure-sensitive adhesives, hot melt adhesives, and vibration damping composites, vibration damping constrained layer constructions, a bi-directional vibration damping constrained layer constructions, vibration damping shaped articles as well as a method of vibrationally damping an article and processes for producing curable vibration damping material.
A curable tackified polydiorganosiloxane oligourea segmented copolymer having a degree of oligomerization of 3 to 16 comprising (a) an oligourea segmented copolymer having (i) soft polydiorganosiloxane diamine residue units, wherein the polydiorganosiloxane diamine residue is the polydiorganosiloxane diamine minus the —NDH groups with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl or a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, (ii) hard polyisocyanate residue units, wherein the polyisocyanate residue is the polyisocyanate minus the —NCO groups, (iii) monoisocyanate residue terminal units having a free radically curable or a moisture curable endcapping group, wherein the monoisocyanate residue terminal units are the monoisocyanate minus the —NCO group, and (iv) urea linkages connecting the isocyanate residue units, the polydiorganosiloxane diamine residue units and the monoisocyanate residue terminal units, and (b) a silicate resin.
A pressure sensitive adhesive article comprising (a) a substrate, and (b) a pressure sensitive adhesive comprising a curable tackified polydiorganosiloxane oligourea segmented copolymer having a degree of oligomerization of 3 to 16 comprising (i) an oligourea segmented copolymer having (A) soft polydiorganosiloxane diamine residue units, wherein the polydiorganosiloxane diamine residue is the polydiorganosiloxane diamine minus the —NDH group with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl or a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, (B) hard polyisocyanate residue units, wherein the polyisocyanate residue is the polyisocyanate minus the —NCO groups, (C) monoisocyanate residue terminal units having a free radically curable or a moisture curable endcapping group, wherein the monoisocyanate residue terminal units are the monoisocyanate minus the —NCO group, and (D) urea linkages connecting the isocyanate residue units, the polydiorganosiloxane diamine residue units and the monoisocyanate residue terminal units, and (ii) a silicate resin.
A hot melt adhesive comprising a curable tackified polydiorganosiloxane oligourea segmented copolymer having a degree of oligomerization of 3 to 16 comprising (a) an oligurea segmented copolymer having (i) soft polydiorganosiloxane diamine residue units, wherein the polydiorganosiloxane diamine residue is the polydiorganosiloxane diamine minus the —NDH groups with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl or a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, (ii) hard polyisocyanate residue units, wherein the polyisocyanate residue is the polyisocyanate minus the —NCO groups, (iii) monoisocyanate residue terminal units having a free radically curable or a moisture curable endcapping group, wherein the monoisocyanate residue terminal units are the monoisocyanate minus the —NCO group, and (iv) urea linkages connecting the isocyanate residue units, the polydiorganosiloxane diamine residue units and the monoisocyanate residue terminal units, and (b) a silicate resin.
A process for producing a curable tackified polydiorganosiloxane oligourea segmented copolymer having a degree of oligomerization of 3 to 16 and comprising (A) an oligourea segmented copolymer having (i) soft polydiorganosiloxane diamine residue units, wherein the polydiorganosiloxane diamine residue is the polydiorganosiloxane diamine minus the —NDH groups with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl or a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, (ii) hard polyisocyanate residue units, wherein the polyisocyanate residue is the polyisocyanate minus the —NCO groups, and the residues of the isocyanate units and the polydiorganosiloxane diamine units are connected by urea linkages, and (iii) terminal functional endcapping groups, and (B) a silicate resin;
An essentially solventless process for producing the curable tackified polydiorganosiloxane oligourea segmented copolymer having a degree of oligomerization of 3 to 16 and comprising (A) an oligourea segmented copolymer having (i) soft polydiorganosiloxane diamine residue units, wherein the polydiorganosiloxane diamine residue is the polydiorganosiloxane diamine minus the —NDH groups with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl or a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, (ii) hard polyisocyanate residue units, wherein the polyisocyanate residue is the polyisocyanate minus the —NCO groups, and the residues of the isocyanate units and the polydiorganosiloxane diamine units are connected by urea linkages, and (iii) terminal functional endcapping groups, and (B) a silicate resin;
A curable tackified polydiorganosiloxane oligourea segmented copolymer having a degree of oligomerization of 3 to 16 comprising (a) an oligourea segmented copolymer having (i) soft polydiorganosiloxane diamine residue units, wherein the polydiorganosiloxane diamine residue is the polydiorganosiloxane diamine minus the—NDH groups with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl or a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, (ii) hard polyisocyanate residue units, wherein the polyisocyanate residue is the polyisocyanate minus the —NCO groups, (iii) monoamine residue terminal units having a free radically curable or a moisture curable endcapping group, wherein the monoamine residue terminal units are the monoamine minus the —NDH group with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl and a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, and (iv) urea linkages connecting the isocyanate residue units, the polydiorganosiloxane diamine residue units and monoamine residue terminal units, and (b) a silicate resin.
A pressure sensitive adhesive article comprising (a) a substrate, and (b) a pressure sensitive adhesive comprising a curable tackified polydiorganosiloxane oligourea segmented copolymer having a degree of oligomerization of 3 to 16 comprising (i) an oligourea segmented copolymer having (A) soft polydiorganosiloxane diamine residue units, wherein the polydiorganosiloxane diamine residue is the polydiorganosiloxane diamine minus the —NDH group with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl or a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, (B) hard polyisocyanate residue units, wherein the polyisocyanate residue is the polyisocyanate minus the —NCO groups, (C) monoamine residue terminal units having a free radically curable or a moisture curable endcapping group, wherein the monoamine residue terminal units are the monoamine minus the —NDH group with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl and a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, and (D) urea linkages connecting the isocyanate residue units, the polydiorganosiloxane diamine residue units and the monoamine residue terminal units, and (ii) a silicate resin.
A hot melt adhesive comprising a curable tackified polydiorganosiloxane oligourea segmented copolymer having a degree of oligomerization of 3 to 16 comprising (a) an oligourea segmented copolymer having (i) soft polydiorganosiloxane diamine residue units, wherein the polydiorganosiloxane diamine residue is the polydiorganosiloxane diamine minus the —NDH groups with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl or a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, (ii) hard polyisocyanate residue units, wherein the polyisocyanate residue is the polyisocyanate minus the —NCO groups, (iii) monoamine residue terminal units having a free radically curable or a moisture curable endcapping group, wherein the monoamine residue terminal units are the monoamine minus the —NDH group with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl and a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, and (iv) urea linkages connecting the isocyanate residue units, the polydiorganosiloxane diamine residue units and the monoamine residue terminal units, and (b) a silicate resin.
A curable tackified polydiorganosiloxane oligourea segmented copolymer having a degree of oligomerization of 3 to 16 comprising (a) an oligourea segmented copolymer having (i) at least two soft polydiorganosiloxane diamine residue units, wherein the polydiorganosiloxane diamine residue units are a polydiorganosiloxane diamine minus all —NDH groups with D selected from hydrogen, alkyl radicals having 1 to 10 carbon atoms, phenyl and a radical that completes a ring structure to form a heterocycle having about 6 to 20 carbon atoms, (ii) at least three hard polyisocyanate residue units, wherein the polyisocyanate residue units are a polyisocyanate minus the—NCO groups, (iii) urea linkages connecting alternating isocyanate residue units and polydiorganosiloxane diamine residue units, and (iv) terminal groups having free radically curable end groups, and (b) a silicate resin.
Dependencies are inferred from the claim text.