A resin composition suppresses unintended curing of a 2-methylene-1,3-dicarbonyl compound in the presence of conductive particles to facilitate the production of a paste including the 2-methylene-1,3-dicarbonyl compound for electronic components. The resin composition includes (a) at least one 2-methylene-1,3-dicarbonyl compound, (b) at least one type of conductive particles and (c) at least one monocarboxylic acid with a number of carbon atoms of 3 or more.

A resin composition suppresses unintended curing of a 2-methylene-1,3-dicarbonyl compound in the presence of conductive particles to facilitate the production of a paste including the 2-methylene-1,3-dicarbonyl compound for electronic components. The resin composition includes (a) at least one 2-methylene-1,3-dicarbonyl compound, (b) at least one type of conductive particles and (c) at least one monocarboxylic acid with a number of carbon atoms of 3 or more.

A curable composition containing: a methylene malonate compound, and a Lewis acidic compound. The methylene malonate compound is preferably a compound represented by formula (1) or formula (2). In the formulae (1) and (2), X.sup.1 to X.sup.4 each independently represent O, NR, or C(R).sub.2, R's each independently represent a hydrogen atom, an alkyl group, or an aryl group, R.sup.1 and R.sup.2 each independently represent an alkyl group or an aryl group, and R.sup.3 represents an alkylene group, an arylene group, or a group obtained by combining two or more of these groups.

##STR00001##

A curable composition containing: a methylene malonate compound, and a Lewis acidic compound. The methylene malonate compound is preferably a compound represented by formula (1) or formula (2). In the formulae (1) and (2), X.sup.1 to X.sup.4 each independently represent O, NR, or C(R).sub.2, R's each independently represent a hydrogen atom, an alkyl group, or an aryl group, R.sup.1 and R.sup.2 each independently represent an alkyl group or an aryl group, and R.sup.3 represents an alkylene group, an arylene group, or a group obtained by combining two or more of these groups.

##STR00001##

An object is to provide a zwitterionic compound having an excellent protein adsorption inhibitory effect. The zwitterionic compound is a polymer comprising a unit represented by the following formula (1):

##STR00001##

wherein R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is OH or O.sup.−, X.sup.1 is —O— or —N(Q.sup.1)-, Q.sup.1 is a hydrogen atom or a C.sub.1-6 alkyl group, m is an integer of 1 to 12, and n is an integer of 1 to 4.

An object is to provide a zwitterionic compound having an excellent protein adsorption inhibitory effect. The zwitterionic compound is a polymer comprising a unit represented by the following formula (1):

##STR00001##

wherein R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is OH or O.sup.−, X.sup.1 is —O— or —N(Q.sup.1)-, Q.sup.1 is a hydrogen atom or a C.sub.1-6 alkyl group, m is an integer of 1 to 12, and n is an integer of 1 to 4.

A sulfonic acid modified polyvinyl alcohol resin comprising up to 15 mol % of a first comonomer comprising sulfonic acid groups. The modified polyvinyl alcohol resin has a hydroxyl unit content of at least 65 mol % and a gel fraction of 3.2 or less. Further, the modified polyvinyl alcohol resin has a disintegration time of 85 seconds or less, as measured in a mixture of 50 vol % water and 50 vol % isopropyl alcohol at 23° C. Additionally, the modified polyvinyl alcohol resin has a hard component present in a component ratio of 10% or greater and 55% or less and having a relaxation time of 0.0091 milliseconds or greater and 0.0104 milliseconds or less, as measured by the pulsed NMR Solid Echo method at 80° C. Also disclosed are methods for producing the sulfonic acid modified polyvinyl alcohol resins, which may advantageously be used in inks, paints, paper coatings, emulsions, or films.

A sulfonic acid modified polyvinyl alcohol resin comprising up to 15 mol % of a first comonomer comprising sulfonic acid groups. The modified polyvinyl alcohol resin has a hydroxyl unit content of at least 65 mol % and a gel fraction of 3.2 or less. Further, the modified polyvinyl alcohol resin has a disintegration time of 85 seconds or less, as measured in a mixture of 50 vol % water and 50 vol % isopropyl alcohol at 23° C. Additionally, the modified polyvinyl alcohol resin has a hard component present in a component ratio of 10% or greater and 55% or less and having a relaxation time of 0.0091 milliseconds or greater and 0.0104 milliseconds or less, as measured by the pulsed NMR Solid Echo method at 80° C. Also disclosed are methods for producing the sulfonic acid modified polyvinyl alcohol resins, which may advantageously be used in inks, paints, paper coatings, emulsions, or films.

The present invention relates to a curable resin composition. More specifically, the present invention relates to a composition comprising methylene malonate functional reactive resin, to its preparation methods, and to the use of the composition in the construction field.

The present invention relates to a curable resin composition. More specifically, the present invention relates to a composition comprising methylene malonate functional reactive resin, to its preparation methods, and to the use of the composition in the construction field.