KR970065579A - Moisture-curable one-pack type polyurethane composition and method for producing the same - Google Patents

Abstract

A one-pack type polyurethane composition capable of being applied under adverse environmental conditions such as high temperature and high humidity such as the summer season, and a method for manufacturing the same. The polyurethane composition is prepared by mixing 30 to 70% of amines with a di- or tri-valent primary amine and a ketone monomer in an equivalent ratio to obtain a semicetrimine compound, adding an aldehyde monomer to the semi- - 70% are mixed and reacted to obtain a polyadimine-ketimine as a latent curing agent, and an isocyanate compound composed of the polyaldimine-ketimine and a polyisocyanate, a polyurethane prepolymer having two or more isocyanate groups, In particular, when a polyurethane waterproofing material is prepared by applying the composition described above, even when the humidity is 80% RH or more and the application surface temperature is 50 占 폚 or more, there is no flaking phenomenon and the tensile strength is 35 kgf / Cm and elongation of 500% or more can be secured.

Description

Moisture-curable one-pack type polyurethane composition and method for producing the same

Since this is a trivial issue, I did not include the contents of the text.

Claims (14)

A latent curing agent obtained by mixing 30 to 70% of an amine with a mono-, di- or trivalent primary amine and a ketone monomer in an amount of 30 to 70% of an amine with a monomeric ratio of an aldehyde monomer to a semicetrimine compound obtained by mixing 30 to 70% Polyadmin-ketamine; And an isocyanate compound composed of a polyisocyanate, a polyurethane prorolymer having two or more isocyanate groups, or a mixture thereof. The method of claim 1, wherein the amine is selected from the group consisting of isophoronediamine, polyoxypropylene diamine, polyoxypropylene triamine, and organisms thereof, which are composed of aliphatic primary and secondary amines and have a molecular weight of 200 to 1000, methane, diamine, ethylene Wherein the moisture-curable one-component polyurethane composition is at least one selected from the group consisting of diamine, propylene diamine, and metaxylenediamine. The method of claim 1, wherein the ketone monomer is at least one selected from the group consisting of methyl isobutyl ketone, diisobutyl ketone, methyl ethyl ketone, acetone, methyl-n-propyl ketone, methyl-n-butyl ketone and ethyl butyl ketone Wherein the moisture-curable one-pack type polyurethane composition is used as the moisture-curable one-pack type polyurethane composition. The moisture-curable one-pack type polyurethane composition according to claim 1, wherein the aldehyde monomer is at least one selected from the group consisting of acetaldehyde, propionaldehyde, benzaldehyde, butylaldehyde, and isobutylaldehyde. The method of claim 1, wherein the isocyanate compound is an aliphatic or aromatic diisocyanate, a modified isocyanate, a polymeric isocyanate, or a polyether polyol of a diol or a triol selected from the group consisting of a polyether polyol, a polyester polyol and a hydroxyl polycarbonate Wherein the content of isocyanate groups in the prepolymer obtained by the reaction with a mixture of a polyisocyanate and a polyisocyanate is from 2 to 10% by weight based on 100% by weight of the prepolymer. The method of claim 1, wherein the mixing ratio of the polyaldimine-ketimine and the isocyanate is such that the number of amino groups produced by the hydrolysis of the polyaldimine-ketimine in the presence of a catalyst is 1.0-1.5 times the number of isocyanate groups of the isocyanate compound Wherein the moisture-curable one-component polyurethane composition is a polyurethane composition. Reacting a divalent or trivalent primary amine with a ketone monomer in an equivalent ratio of 30 to 70% of an amine to obtain a semicetrimine compound; Reacting the semi-ketimine compound with an aldehyde monomer in an equivalent ratio of 30 to 70% of amine to obtain a latent curing agent polyadimine-ketimine; And polyadimine-ketimine and polyisocyanate. A polyurethane prepolymer having an isocyanate group of two isocyanate groups, or an isocyanate compound composed of a mixture thereof. The method of claim 7, wherein at least one of the moisture absorbers selected from the group consisting of calcium chloride, magnesium sulfate, titanium tetrachloride, potassium carbonate, barium oxide, zinc chloride and zeolite is used as a promoter in the reaction of the semicetrimine compound Wherein the moisture-curable one-component polyurethane composition is a polyurethane composition. The method of claim 7, wherein the isocyanate compound is selected from the group consisting of an aliphatic or aromatic diisocyanate, a modified isocyanate, a polymeric isocyanate, or a polyether polyol of a diol or triol selected from the group consisting of polyether polyol, polyester polyol and hydroxyl polycarbonate Or a mixture thereof is reacted with a chain extender to obtain a moisture-curable one-pack type polyurethane composition. A latent curing agent obtained by mixing 30 to 70% of an amine with an equivalent amount of a primary or secondary amine of a di- or trivalent amine and mixing 30 to 70% of an amine with an aldehyde monomer in an equivalent ratio to a semi- An isocyanate compound composed of polyadimine-ketimine and polyisocyanate, a polyurethane prepolymer having two or more isocyanate groups, or a mixture thereof, wherein the filler is at least one selected from the group consisting of potassium carbonate, talc, silica, barium sulfate, kaolin and clay A moisture-curable one-part pulley-urethane waterproofing material comprising one of a colorant, a plasticizer and an additive in a range of 30 to 50% by weight of the total blend. A latent curing agent obtained by mixing 30 to 70% of amines with a di- or tri-valent primary amine and a ketone monomer in an equivalent ratio to 30 to 70% of an amine in an equivalent ratio of an aldehyde monomer to a semi- At least one selected from potassium carbonate, talc silica, barium sulfate, kaolin and clay as a filler, and an isocyanate compound composed of a polyisocyanate, a polyurethane prepolymer having two or more isocyanate groups, In the range of 30 to 50 weight percent of the total formulation, and comprising a colorant, a plasticizer, and an additive. A latent curing agent obtained by mixing 30 to 70% of amines with a di- or tri-valent primary amine and a ketone monomer in an equivalent ratio to 30 to 70% of an amine in an equivalent ratio of an aldehyde monomer to a semi- A moisture-curable one-component polyurethane sealant comprising an isocyanate compound composed of an aldimine-ketimine and a polyisocyanate, a polyurethane prepolymer having two or more isocyanate groups, or a mixture thereof, and containing an anti-fogging filler, a colorant, a plasticizer, My. A latent curing agent obtained by mixing 30 to 70% of amines with a di- or tri-valent primary amine and a ketone monomer in an equivalent ratio to 30 to 70% of an amine in an equivalent ratio of an aldehyde monomer to a semi- 1-part polyurethane adhesive comprising an isocyanate compound composed of an aldimine-ketimine and a polyisocyanate, a polyurethane prepolymer having two or more isocyanate groups, or a mixture thereof, and containing a filler, a colorant, a plasticizer and an additive. A latent curing agent obtained by mixing 30 to 70% of amines with a di- or tri-valent primary amine and a ketone monomer in an equivalent ratio to 30 to 70% of an amine in an equivalent ratio of an aldehyde monomer to a semi- A moisture-curable one-pack type polyurethane coating composition comprising an isocyanate compound composed of an aldimine-ketamine and a polyisocyanate, a polyurethane prepolymer having two or more isocyanate groups, or a mixture thereof, and containing a filler, a colorant, a plasticizer and an additive. ※ Note: It is disclosed by the contents of the first application.