A composition containing an alkoxysilyl-functional polymer, a phenylsilicone resin, and a non-reactive plasticizer, when cured, exhibits very high elongation without loss of tensile strength. The compositions are particularly well suited for flexible adhesives.

A moisture-curable resin composition comprising (a) a moisture-curable polymer having at least one hydrolysable silyl group; (b) a reactive modifier; (c) a catalyst for catalyzing the reaction between the moisture-curable polymer (a) and reactive modifier (b) under curing conditions; and optionally, the composition can contain one or more conventional components, including pigments, fillers, curing catalysts, dyes, plasticizers, thickeners, coupling agents, extenders, volatile organic solvents, wetting agents, tackifiers, crosslinking agents, thermoplastic polymers, ultraviolet stabilizers, and combination thereof. The moisture-curable resin composition is useful in the production of adhesives including hot melt adhesives, primers, sealants and coatings.

A moisture-curable resin composition comprising (a) a moisture-curable polymer having at least one hydrolysable silyl group; (b) a reactive modifier; (c) a catalyst for catalyzing the reaction between the moisture-curable polymer (a) and reactive modifier (b) under curing conditions; and optionally, the composition can contain one or more conventional components, including pigments, fillers, curing catalysts, dyes, plasticizers, thickeners, coupling agents, extenders, volatile organic solvents, wetting agents, tackifiers, crosslinking agents, thermoplastic polymers, ultraviolet stabilizers, and combination thereof. The moisture-curable resin composition is useful in the production of adhesives including hot melt adhesives, primers, sealants and coatings.

The present invention provides curable compositions comprising (A) an polymer having a reactive silicon-containing group, (B) a cross-linker and/or a chain extender, (C) a non-tin metal catalyst, (D) an adhesion promoter, (E) optionally a filler, (F) optionally cure accelerator. The above curable compositions exhibit excellent adhesiveness, deep section cure, stable curability even after storage and/or retained physical properties even after subjecting to the accelerated humidity and temperatures.

The present invention provides curable compositions comprising (A) an polymer having a reactive silicon-containing group, (B) a cross-linker and/or a chain extender, (C) a non-tin metal catalyst, (D) an adhesion promoter, (E) optionally a filler, (F) optionally cure accelerator. The above curable compositions exhibit excellent adhesiveness, deep section cure, stable curability even after storage and/or retained physical properties even after subjecting to the accelerated humidity and temperatures.

Provided is an adhesive composition which is flexible, and exhibits excellent adhesion durability. The adhesive composition comprises (a) a 2-cyanoacrylic acid ester, (b) a polymer having a hydrolyzable silyl group, (c) an elastomer, and (d) an acid catalyst, in which the contents of the components (b), (c), and (d) are from 5 to 200 parts by mass, from 5 to 50 parts by mass, and from 0.0005 to 0.5 parts by mass, respectively, relative to 100 parts by mass of the component (a). Further preferably, the composition contains 0.001 to 5 parts by mass of (e) an onium salt relative to 100 parts by mass of the component (a).

Provided is an adhesive composition which is flexible, and exhibits excellent adhesion durability. The adhesive composition comprises (a) a 2-cyanoacrylic acid ester, (b) a polymer having a hydrolyzable silyl group, (c) an elastomer, and (d) an acid catalyst, in which the contents of the components (b), (c), and (d) are from 5 to 200 parts by mass, from 5 to 50 parts by mass, and from 0.0005 to 0.5 parts by mass, respectively, relative to 100 parts by mass of the component (a). Further preferably, the composition contains 0.001 to 5 parts by mass of (e) an onium salt relative to 100 parts by mass of the component (a).

A room-temperature-curing resin composition, which contains in specific ratios (A) an organic polymer in which molecular chain ends are capped by hydrolyzable silyl groups and/or hydroxysilyl groups and (B) a hydrolyzable organosilane compound represented in general formula (1) below and/or a partially hydrolyzed condensate thereof

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(where R.sup.1 is a monovalent hydrocarbon group having a carbon number of 1-10, n is 1-8, and m is 3 or 4),
has equivalent or superior curing properties compared to conventional alcohol-release or oxime-release room-temperature-curing resin compositions even if various catalysts are used, can reduce harmful effects on humans and environmental load, and can provide a cured rubber product after curing having favorable rubber properties, adhesion, and durability.

Moisture-curing adhesives simultaneously having high tensile strength and elongation are prepared by admixing a silane-terminated polyurethane or polyether polymer having a defined and limited molecular weight, finely divided silica, and an organosilicon compound containing basic nitrogen.

Moisture-curing adhesives simultaneously having high tensile strength and elongation are prepared by admixing a silane-terminated polyurethane or polyether polymer having a defined and limited molecular weight, finely divided silica, and an organosilicon compound containing basic nitrogen.