The invention relates to a primer for improving the adhesion of adhesive tapes to hydrophilic surfaces, such as, in particular, glass or ceramic. The primer according to the invention comprises, dissolved or dispersed in one or more solvents, a mixture G of at least one copolymer obtained by copolymerization of a monomer mixture comprising to at least 90 wt. % the following monomers: vinylcaprolactam and/or vinylpyrrolidone and one or more of the monomers a) and b): c) acrylic acid ester of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl radical of the alcohol, d) acrylic acid ester of a branched, non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl radical of the alcohol, at least one organofunctional silane of the general structure (Ia) or (Ib)

(R.sup.1O—).sub.xSi(CH.sub.2OR.sup.2).sub.y(R.sup.3).sub.z  (Ia)

(R.sup.1O—).sub.xSi(CH.sub.2NHR.sup.2).sub.y(R.sup.3).sub.z  (Ib), wherein the radicals R.sup.1 independently of each other represent a C.sub.1-C.sub.4-alkyl radical, a C.sub.2-C.sub.6-alkoxyalkyl radical or an acetyl radical; the radicals R.sup.2 independently of each other represent an organic radical; the radicals R.sup.3 independently of each other represent a C.sub.1-C.sub.18-alkyl radical and x=1, 2 or 3; y=1, 2 or 3; x+y≦4 and z=4−x−y; at least one metal compound selected from the group consisting of metal acetylacetonates, metal alkoxides and alkoxy-metal acetylacetonates, at least one amine.

According to the present disclosure, there are provided a surface treatment agent having the advantage that the raw material components can be dissolved in a short time during preparation of the surface treatment agent and capable of exerting a good water repellency imparting effect, and a method of manufacturing a surface-treated body with the use of the surface treatment agent. The surface treatment agent according to the present disclosure includes the following components: (I) at least one kind selected from the group consisting of silicon compounds represented by the following general formulas [1], [2] and [3]; (II) at least one kind selected from the group consisting of a nitrogen-containing heterocyclic compound represented by the following general formula [4], a nitrogen-containing heterocyclic compound represented by the following general formula [5], and imidazole; and (III) an organic solvent. ##STR00001##

According to the present disclosure, there are provided a surface treatment agent having the advantage that the raw material components can be dissolved in a short time during preparation of the surface treatment agent and capable of exerting a good water repellency imparting effect, and a method of manufacturing a surface-treated body with the use of the surface treatment agent. The surface treatment agent according to the present disclosure includes the following components: (I) at least one kind selected from the group consisting of silicon compounds represented by the following general formulas [1], [2] and [3]; (II) at least one kind selected from the group consisting of a nitrogen-containing heterocyclic compound represented by the following general formula [4], a nitrogen-containing heterocyclic compound represented by the following general formula [5], and imidazole; and (III) an organic solvent. ##STR00001##

The composition includes a polyorganosiloxane and an amino-functional silane. The polyorganosiloxane has divalent units represented by Formula (I) and greater than two —Si(Y).sub.p(R).sub.3-P groups, in which each R is a non-hydrolyzable group; each Y is a hydrolysable group; and p is 1, 2, or 3. The composition further includes an amino-functional silane represented by (R.sup.6).sub.2N—[R.sup.4—Z].sub.r—R.sup.4—[Si(Y).sub.p(R.sup.5).sub.3-P] or a cyclic azasilane of Formula (II). Each R.sup.4 is a linking group; each R.sup.5 is a non-hydrolyzable group; each Z is —O— or —N(R.sup.6)—; each R.sup.6 is hydrogen, alkyl, aryl, arylalkylenyl, or —R.sup.4—[Si(Y).sub.p(R.sup.5).sub.3-P]; R.sup.7 is a linking group that can have at least one catenated —N(R.sup.8)—; each R.sup.8 is hydrogen, alkyl, or alkenyl, which may be substituted by an amino group; each Y is a hydrolyzable group; r is 0, 1, 2, or 3; and p is 1, 2, or 3. A method of using the composition to make a coated article is also described.

##STR00001##

The composition includes a polyorganosiloxane and an amino-functional silane. The polyorganosiloxane has divalent units represented by Formula (I) and greater than two —Si(Y).sub.p(R).sub.3-P groups, in which each R is a non-hydrolyzable group; each Y is a hydrolysable group; and p is 1, 2, or 3. The composition further includes an amino-functional silane represented by (R.sup.6).sub.2N—[R.sup.4—Z].sub.r—R.sup.4—[Si(Y).sub.p(R.sup.5).sub.3-P] or a cyclic azasilane of Formula (II). Each R.sup.4 is a linking group; each R.sup.5 is a non-hydrolyzable group; each Z is —O— or —N(R.sup.6)—; each R.sup.6 is hydrogen, alkyl, aryl, arylalkylenyl, or —R.sup.4—[Si(Y).sub.p(R.sup.5).sub.3-P]; R.sup.7 is a linking group that can have at least one catenated —N(R.sup.8)—; each R.sup.8 is hydrogen, alkyl, or alkenyl, which may be substituted by an amino group; each Y is a hydrolyzable group; r is 0, 1, 2, or 3; and p is 1, 2, or 3. A method of using the composition to make a coated article is also described.

##STR00001##

The composition includes a polyorganosiloxane and an amino-functional silane. The polyorganosiloxane has divalent units represented by Formula (I) and greater than two —Si(Y).sub.p(R).sub.3-P groups, in which each R is a non-hydrolyzable group; each Y is a hydrolysable group; and p is 1, 2, or 3. The composition further includes an amino-functional silane represented by (R.sup.6).sub.2N—[R.sup.4—Z].sub.r—R.sup.4—[Si(Y).sub.p(R.sup.5).sub.3-P] or a cyclic azasilane of Formula (II). Each R.sup.4 is a linking group; each R.sup.5 is a non-hydrolyzable group; each Z is —O— or —N(R.sup.6)—; each R.sup.6 is hydrogen, alkyl, aryl, arylalkylenyl, or —R.sup.4—[Si(Y).sub.p(R.sup.5).sub.3-P]; R.sup.7 is a linking group that can have at least one catenated —N(R.sup.8)—; each R.sup.8 is hydrogen, alkyl, or alkenyl, which may be substituted by an amino group; each Y is a hydrolyzable group; r is 0, 1, 2, or 3; and p is 1, 2, or 3. A method of using the composition to make a coated article is also described.

##STR00001##

A method for producing a thixotropic curable silicone composition is provided. The curable silicone composition comprises: (A) a silicone base material comprising: an organopolysiloxane having at least two alkoxysilyl-containing groups per molecule and a filler other than fumed silica; (B) a hydrophobic fumed silica; (C) a carbasilatrane derivative; (D) an alkoxysilane or its partial hydrolysis and condensation product; and (E) a condensation reaction catalyst. The method comprises the following steps: (I) mixing components (A) and (B); (II) mixing component (C) with a mixture obtained by step (I); and (III) mixing components (D) and (E) with a mixture obtained by step (II) under free of moisture. The curable silicone composition obtained by the method has an excellent thixotropic property and can cure at room temperature by contact with moisture in air.

A room-temperature-curable organopolysiloxane composition contains as essential components (A) an organopolysiloxane shown by the following general formula (1), (B) an alkoxysilane shown by the following general formula (2) or a partial hydrolysate thereof, (C) a silazane compound shown by the following general formula (3), (D) a bismuth compound shown by the following general formula (4) which is in a liquid state at 20° C., a partial hydrolysate thereof, or both of them, (E) one or more fillers, and (F) a silane coupling agent having amine structure or imine structure, in which the composition satisfies [component (C)/component (B)≧1.0]. As a result, a room-temperature-curable organopolysiloxane composition has good curability and storage stability even without containing an organotin compound or an organotitanium compound, has safety in view of toxicity to the human body and environment, and exhibits good rubber physical properties and adhesion after curing. ##STR00001##

A room-temperature-curable organopolysiloxane composition contains as essential components (A) an organopolysiloxane shown by the following general formula (1), (B) an alkoxysilane shown by the following general formula (2) or a partial hydrolysate thereof, (C) a silazane compound shown by the following general formula (3), (D) a bismuth compound shown by the following general formula (4) which is in a liquid state at 20° C., a partial hydrolysate thereof, or both of them, (E) one or more fillers, and (F) a silane coupling agent having amine structure or imine structure, in which the composition satisfies [component (C)/component (B)≧1.0]. As a result, a room-temperature-curable organopolysiloxane composition has good curability and storage stability even without containing an organotin compound or an organotitanium compound, has safety in view of toxicity to the human body and environment, and exhibits good rubber physical properties and adhesion after curing. ##STR00001##

This polymer composition includes: a modified conjugated diene-based polymer having at least one nitrogen-containing functional group selected from the group consisting of a primary amino group, a secondary amino group, a tertiary amino group, a primary amino group having been protected or converted into an onium group, a secondary amino group having been protected or converted into an onium group, and a tertiary amino group having been converted into an onium group; and a functional-group-containing polymer having at least one functional group selected from the group consisting of an epoxy group, an acid anhydride structure, an oxazoline group, a hydroxyl group, a carboxyl group, and a sulfo group.