Provided herein is a water-based hybrid pressure sensitive adhesive composition and a method of producing the same. The composition comprises: (A) 100 parts by mass of a silicone pressure sensitive adhesive; (B) 5 to 80 parts by mass of an acrylic pressure sensitive adhesive; (C) water in a sufficient amount to emulsify or disperse components (A) and (B) in component (C); and (D) 0.1 to 10 parts by mass of an amino-functional alkoxysilane compound, a hydrolysate thereof, or a hydrolyzed condensate thereof. Components (A) and (B) are emulsified or dispersed in component (C). The composition can be cured to form a pressure sensitive adhesive exhibiting good peel adhesion and low silicone migration.

Provided herein is a water-based hybrid pressure sensitive adhesive composition and a method of producing the same. The composition comprises: (A) 100 parts by mass of a silicone pressure sensitive adhesive; (B) 5 to 80 parts by mass of an acrylic pressure sensitive adhesive; (C) water in a sufficient amount to emulsify or disperse components (A) and (B) in component (C); and (D) 0.1 to 10 parts by mass of an amino-functional alkoxysilane compound, a hydrolysate thereof, or a hydrolyzed condensate thereof. Components (A) and (B) are emulsified or dispersed in component (C). The composition can be cured to form a pressure sensitive adhesive exhibiting good peel adhesion and low silicone migration.

Disclosed is a moisture curable silane modified terpolymer comprising a polyether segment, a segment of polytetrahydrofuran or polycarbonate, a polysiloxane segment and terminal amino silane groups joined to the terpolymer via urethane linkages and wherein the polyether segment comprises at least 70% by weight based on the total weight of the silane modified terpolymer. Also disclosed is a method of forming moisture curable silane modified terpolymer.

Disclosed is a moisture curable silane modified terpolymer comprising a polyether segment, a segment of polytetrahydrofuran or polycarbonate, a polysiloxane segment and terminal amino silane groups joined to the terpolymer via urethane linkages and wherein the polyether segment comprises at least 70% by weight based on the total weight of the silane modified terpolymer. Also disclosed is a method of forming moisture curable silane modified terpolymer.

An amidine containing at least one structural unit of the formula (I) and the use thereof as catalyst for the crosslinking of a functional compound, especially of a polymer having silane groups. The amidine is preparable in a simple process from readily available starting materials, is largely odorless at room temperature and is of low toxicity. It accelerates the crosslinking of functional compounds surprisingly efficiently and can be adjusted for optimal compatibility with different compositions via the radical to which the structural units of the formula (I) is bonded, which means that such compositions do not have a tendency to migration-related defects such as separation, exudation or substrate soiling.

An amidine containing at least one structural unit of the formula (I) and the use thereof as catalyst for the crosslinking of a functional compound, especially of a polymer having silane groups. The amidine is preparable in a simple process from readily available starting materials, is largely odorless at room temperature and is of low toxicity. It accelerates the crosslinking of functional compounds surprisingly efficiently and can be adjusted for optimal compatibility with different compositions via the radical to which the structural units of the formula (I) is bonded, which means that such compositions do not have a tendency to migration-related defects such as separation, exudation or substrate soiling.

A curable composition includes a (meth)acrylic acid ester polymer (A), wherein the (meth)acrylic acid ester polymer (A) includes a monomer and a macromonomer (a). The monomer includes a reactive silicon group represented by the general formula (1): SiR.sup.1.sub.aX.sub.3-a (1) (in the formula, R.sup.1 represents a substituted or unsubstituted hydrocarbon group with 1 to 20 carbon atoms, X each independently represents a hydroxyl group or a hydrolyzable group, and a represents 0 or 1.) and a polymerizable unsaturated group. The macromonomer (a) is a (meth)acrylic acid ester polymer having a polymerizable unsaturated group.

A curable composition includes a (meth)acrylic acid ester polymer (A), wherein the (meth)acrylic acid ester polymer (A) includes a monomer and a macromonomer (a). The monomer includes a reactive silicon group represented by the general formula (1): SiR.sup.1.sub.aX.sub.3-a (1) (in the formula, R.sup.1 represents a substituted or unsubstituted hydrocarbon group with 1 to 20 carbon atoms, X each independently represents a hydroxyl group or a hydrolyzable group, and a represents 0 or 1.) and a polymerizable unsaturated group. The macromonomer (a) is a (meth)acrylic acid ester polymer having a polymerizable unsaturated group.

Disclosed is a curable silicone composition. The composition comprises: (A) an organopolysiloxane having at least two alkenyl groups and at least one aryl group in each molecule; (B) a polyoxyalkylene compound represented by the general formula: XO(C.sub.2H.sub.4O).sub.p(C.sub.nH.sub.2nO).sub.q(YO).sub.rX, wherein, each X represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an acryl group, or a methacryl group, provided that at least one X in each molecule is the alkenyl group, the acryl group, or the methacryl group, Y represents a divalent hydrocarbon group, n represents an integer of 3 to 6, p and q are integers satisfying: 2p100 and 0q50, and r represents 0 or 1; (C) an organopolysiloxane having at least two silicon bonded hydrogen atoms in each molecule; and (D) a catalyst for a hydrosilylation reaction. The composition forms a cured product having improved properties.

Disclosed is a curable silicone composition. The composition comprises: (A) an organopolysiloxane having at least two alkenyl groups and at least one aryl group in each molecule; (B) a polyoxyalkylene compound represented by the general formula: XO(C.sub.2H.sub.4O).sub.p(C.sub.nH.sub.2nO).sub.q(YO).sub.rX, wherein, each X represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an acryl group, or a methacryl group, provided that at least one X in each molecule is the alkenyl group, the acryl group, or the methacryl group, Y represents a divalent hydrocarbon group, n represents an integer of 3 to 6, p and q are integers satisfying: 2p100 and 0q50, and r represents 0 or 1; (C) an organopolysiloxane having at least two silicon bonded hydrogen atoms in each molecule; and (D) a catalyst for a hydrosilylation reaction. The composition forms a cured product having improved properties.