Provided is a curable composition which is free of organotin compounds to be environmentally friendly and whose cured product shows high elongation and high elastic recovery to be suitable particularly as a sealant. The present invention relates to a curable composition containing a reactive silyl group-containing organic polymer (A) which has a highly active reactive silyl group at a molecular chain end, and a compound (B) having 2 to 10 ethyloxy groups in its molecule but having no amino group in its molecule, the compound (B) being a C1-C20 saturated hydrocarbon having one alkoxysilyl group, a C1-C20 hydrocarbon having two or more alkoxysilyl groups, or a C1-C20 polycarboxylic acid ester.

Provided is a curing catalyst having a high safety and a practical curing rate.

According to the present invention, provided is a curing catalyst [B] used for curing a polymer [A] having a reactive hydrolyzable silicon-containing group, wherein the curing catalyst [B] contains a complex of a titanium compound [B1] and an ammonium hydroxide [B2], and an amine compound [B3], the titanium compound [B1] is represented by Chemical Formula (1), the ammonium hydroxide [B2] is represented by Chemical Formula (2), and the amine compound [B3] is represented by Chemical Formula (3), Chemical Formula (4), or Chemical Formula (5).

The present invention provides a curable resin composition excellent in surface curability and internal curability in bonding adherend members without use of an organic tin catalyst. The curable resin composition includes the following components (A) to (E): component (A): an epoxy resin having 2 or more epoxy groups in a molecule; component (B): a bismuth catalyst; component (C): water having a pH of 8.0 or more; component (D): an organic polymer having 2 or more hydrolyzable silyl groups in a molecule; and component (E): a curing agent for an epoxy resin.

The present invention provides a curable resin composition excellent in surface curability and internal curability in bonding adherend members without use of an organic tin catalyst. The curable resin composition includes the following components (A) to (E): component (A): an epoxy resin having 2 or more epoxy groups in a molecule; component (B): a bismuth catalyst; component (C): water having a pH of 8.0 or more; component (D): an organic polymer having 2 or more hydrolyzable silyl groups in a molecule; and component (E): a curing agent for an epoxy resin.

Provided is a curing catalyst having a high safety and a practical curing rate.

According to the present invention, provided is a curing catalyst [B] used for curing a polymer [A] having a reactive hydrolyzable silicon-containing group, wherein the curing catalyst [B] contains a catalyst composition obtained by forming a complex by reacting a titanium compound [B1] with an ammonium hydroxide [B2] in a mixture obtained by mixing the titanium compound [B1] and the ammonium hydroxide [B2], a molar ratio of the titanium compound [B1] to the ammonium hydroxide [B2] in the mixture is 1 to 2.8, the titanium compound [B1] is represented by Chemical Formula (1), the ammonium hydroxide [B2] is represented by Chemical Formula (2).

The present invention relates to an adhesive composition containing a base polymer and a moisture-curable component, wherein the base polymer contains a polymer having no functional group which reacts with the moisture-curable component, and a water content of the base polymer after storage at 25° C. and 50% RH for 24 hours is 0.1% by weight or less, and wherein the moisture-curable component is contained in an unreacted state, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer.

The present invention relates to an adhesive composition containing a base polymer and a moisture-curable component, wherein the base polymer contains a polymer having no functional group which reacts with the moisture-curable component, and a water content of the base polymer after storage at 25° C. and 50% RH for 24 hours is 0.1% by weight or less, and wherein the moisture-curable component is contained in an unreacted state, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer.

The disclosure relates to moisture curable compositions based on a combination of silane-modified polymer and silane functional additive, their manufacture and use. The silane functional additive is preferably prepared from a water miscible polyol having a functionality of about 2 to about 4 and/or a polyol having a tertiary nitrogen atom in the backbone and a functionality equal or greater than about 2.

The disclosure relates to moisture curable compositions based on a combination of silane-modified polymer and silane functional additive, their manufacture and use. The silane functional additive is preferably prepared from a water miscible polyol having a functionality of about 2 to about 4 and/or a polyol having a tertiary nitrogen atom in the backbone and a functionality equal or greater than about 2.

When considering the prior art, the objective of the present invention is to provide a curing catalyst which is highly safe and has a curing rate suitable for practical use. According to the present invention, provided is a curing catalyst [B] which is used for curing a polymer [A] having a reactive hydrolyzable silicon-containing group, the curing catalyst [B] containing a metal alkoxide [B1] and an ammonium hydroxide [B2], wherein: the metal alkoxide [B1] includes one or both of a titanium compound [B1a] represented by chemical formula (1) and another metal alkoxide [B1b]; the another metal alkoxide [B1b] is an alkoxide of a metal other than titanium; and the ammonium hydroxide [B2] is represented by chemical formula (2).