This organopolysiloxane composition, when cured at room temperature by moisture in the atmosphere, provides a silicone rubber cured product having good self-adhesiveness to a magnesium alloy. The organopolysiloxane composition contains (A) an organopolysiloxane having a hydroxy group and/or a hydrolysable silyl group at both ends of the molecular chain, (B) an organic silicon compound other than (A) and (C), having at least three hydrolysable groups bonded to a silicon atom per molecule, and/or a partial hydrolysis-condensation product thereof, and (C) a silane coupling agent having a specific molecular structure having a carboxylic acid silyl ester bond. Furthermore, a novel compound, having an alkoxysilyl group and a carboxylic acid silyl ester group per molecule, can have improved adhesiveness/bonding properties with respect to a base material due to the effect of carboxylic acid after hydrolysis thereof.

This organopolysiloxane composition, when cured at room temperature by moisture in the atmosphere, provides a silicone rubber cured product having good self-adhesiveness to a magnesium alloy. The organopolysiloxane composition contains (A) an organopolysiloxane having a hydroxy group and/or a hydrolysable silyl group at both ends of the molecular chain, (B) an organic silicon compound other than (A) and (C), having at least three hydrolysable groups bonded to a silicon atom per molecule, and/or a partial hydrolysis-condensation product thereof, and (C) a silane coupling agent having a specific molecular structure having a carboxylic acid silyl ester bond. Furthermore, a novel compound, having an alkoxysilyl group and a carboxylic acid silyl ester group per molecule, can have improved adhesiveness/bonding properties with respect to a base material due to the effect of carboxylic acid after hydrolysis thereof.

This organopolysiloxane composition, when cured at room temperature by moisture in the atmosphere, provides a silicone rubber cured product having good self-adhesiveness to a magnesium alloy. The organopolysiloxane composition contains (A) an organopolysiloxane having a hydroxy group and/or a hydrolysable silyl group at both ends of the molecular chain, (B) an organic silicon compound other than (A) and (C), having at least three hydrolysable groups bonded to a silicon atom per molecule, and/or a partial hydrolysis-condensation product thereof, and (C) a silane coupling agent having a specific molecular structure having a carboxylic acid silyl ester bond. Furthermore, a novel compound, having an alkoxysilyl group and a carboxylic acid silyl ester group per molecule, can have improved adhesiveness/bonding properties with respect to a base material due to the effect of carboxylic acid after hydrolysis thereof.

To provide one liquid type dental adhesive composition that exhibits excellent adhesive property to glass ceramics, oxide-base ceramics and tooth substance, and has excellent storage stability, which are contrary features. One liquid type dental adhesive composition contains (a) silane coupling agent represented by general formula (1), (b) acidic group-containing polymerizable monomer, (c) volatile organic solvent, and (d) water.

##STR00001##

(In the formula, R.sup.1 represents an organic group having at least one functional group selected from the group consisting of a (meth)acryloyl group, a vinyl group and an epoxy group, R.sup.2 represents C4-C8 linear alkyl group, R.sup.3 represents C1-C8 alkyl group, and n is integer selected from 1 to 3.)

To provide one liquid type dental adhesive composition that exhibits excellent adhesive property to glass ceramics, oxide-base ceramics and tooth substance, and has excellent storage stability, which are contrary features. One liquid type dental adhesive composition contains (a) silane coupling agent represented by general formula (1), (b) acidic group-containing polymerizable monomer, (c) volatile organic solvent, and (d) water.

##STR00001##

(In the formula, R.sup.1 represents an organic group having at least one functional group selected from the group consisting of a (meth)acryloyl group, a vinyl group and an epoxy group, R.sup.2 represents C4-C8 linear alkyl group, R.sup.3 represents C1-C8 alkyl group, and n is integer selected from 1 to 3.)

The present invention relates to a water-rehydratable solid composition for the production of an aqueous composition comprising a silane/(titanate and/or zirconate) binder, a method for producing such a composition, and a method for producing an aqueous composition comprising a silane/titanate and/or zirconate) binder by hydrating such it solid composition.

The present invention relates to a water-rehydratable solid composition for the production of an aqueous composition comprising a silane/(titanate and/or zirconate) binder, a method for producing such a composition, and a method for producing an aqueous composition comprising a silane/titanate and/or zirconate) binder by hydrating such it solid composition.

There is disclosed a layered article that can be used in indirect printing, in analog or digital processes. The layered article, when configured as a transfer member, may serve to receive an ink in any form, allow the ink to be treated so as to form an ink image, and permit the application of the ink image on a substrate. The transfer member comprises a support layer and an imaging layer, which may be formed of a silicon matrix including dispersed carbon black particles. Methods for preparing the same are also disclosed.

The present invention relates to a block copolymer that contains a polymer block A containing a farnesene-derived monomer unit (a1) and a random copolymer block B containing a C12 or lower conjugated diene-derived monomer unit (b1) and an aromatic vinyl compound-derived monomer unit (b2), the block copolymer having a ratio by mass of the polymer block A to the random copolymer block B (A/B) of 30/70 to 0.5/99.5, a content of the aromatic vinyl compound-derived monomer unit (b2) in the random copolymer block B of 1 to 50% by mass, and a weight average molecular weight (Mw) of 100,000 to 5,000,000.

The present invention relates to a block copolymer that contains a polymer block A containing a farnesene-derived monomer unit (a1) and a random copolymer block B containing a C12 or lower conjugated diene-derived monomer unit (b1) and an aromatic vinyl compound-derived monomer unit (b2), the block copolymer having a ratio by mass of the polymer block A to the random copolymer block B (A/B) of 30/70 to 0.5/99.5, a content of the aromatic vinyl compound-derived monomer unit (b2) in the random copolymer block B of 1 to 50% by mass, and a weight average molecular weight (Mw) of 100,000 to 5,000,000.