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.

A polybutadiene having a hydroxyl group at a terminal end thereof is reacted with a lactone compound such as an -caprolactone to obtain a polymer polyol represented by formula (I): HOX.sup.1YX.sup.2OH (wherein X.sup.1 and X.sup.2 each independently represents a polyester component and Y represents a polybutadiene component), the polymer polyol is reacted with an unsymmetric diisocyanate to obtain a urethane prepolymer, and then the urethane prepolymer is reacted with a chain extender to obtain a polyurethane.

A polybutadiene having a hydroxyl group at a terminal end thereof is reacted with a lactone compound such as an -caprolactone to obtain a polymer polyol represented by formula (I): HOX.sup.1YX.sup.2OH (wherein X.sup.1 and X.sup.2 each independently represents a polyester component and Y represents a polybutadiene component), the polymer polyol is reacted with an unsymmetric diisocyanate to obtain a urethane prepolymer, and then the urethane prepolymer is reacted with a chain extender to obtain a polyurethane.

A polybutadiene having a hydroxyl group at a terminal end thereof is reacted with a lactone compound such as an -caprolactone to obtain a polymer polyol represented by formula (I): HOX.sup.1YX.sup.2OH (wherein X.sup.1 and X.sup.2 each independently represents a polyester component and Y represents a polybutadiene component), the polymer polyol is reacted with an unsymmetric diisocyanate to obtain a urethane prepolymer, and then the urethane prepolymer is reacted with a chain extender to obtain a polyurethane.

A polybutadiene having a hydroxyl group at a terminal end thereof is reacted with a lactone compound such as an -caprolactone to obtain a polymer polyol represented by formula (I): HOX.sup.1YX.sup.2OH (wherein X.sup.1 and X.sup.2 each independently represents a polyester component and Y represents a polybutadiene component), the polymer polyol is reacted with an unsymmetric diisocyanate to obtain a urethane prepolymer, and then the urethane prepolymer is reacted with a chain extender to obtain a polyurethane.

A wettable, high strength, ether foam, particularly suited for ink holders, that includes a prepolymer that is formed before adding it to other components in the foam formulation.

A wettable, high strength, ether foam, particularly suited for ink holders, that includes a prepolymer that is formed before adding it to other components in the foam formulation.

A process for producing a polyacetal copolymer, the process making catalyst deactivation easy and efficient. Trioxane as a major monomer is copolymerized with one or more comonomers that are a cyclic ether and/or cyclic formal having at least one carbon-carbon bond, using a nonvolatile protonic acid as a polymerization catalyst at 100 C. or lower until the conversion reaches 50% and thereafter at a polymerization environment temperature of 115 C. to 140 C. This process includes: a crushing step in which a dry-process crusher is used to obtain a crude polyacetal copolymer crushed to such a degree that when the crude copolymer is screened with a sieve having an opening size of 11.2 mm, 90 parts by weight or more thereof passes therethrough; and a deactivation step in which a basic compound (e) is added to the crude copolymer and the mixture is melt-kneaded to thereby deactivate the polymerization catalyst.

A process for producing a polyacetal copolymer, the process making catalyst deactivation easy and efficient. Trioxane as a major monomer is copolymerized with one or more comonomers that are a cyclic ether and/or cyclic formal having at least one carbon-carbon bond, using a nonvolatile protonic acid as a polymerization catalyst at 100 C. or lower until the conversion reaches 50% and thereafter at a polymerization environment temperature of 115 C. to 140 C. This process includes: a crushing step in which a dry-process crusher is used to obtain a crude polyacetal copolymer crushed to such a degree that when the crude copolymer is screened with a sieve having an opening size of 11.2 mm, 90 parts by weight or more thereof passes therethrough; and a deactivation step in which a basic compound (e) is added to the crude copolymer and the mixture is melt-kneaded to thereby deactivate the polymerization catalyst.