Room temperature curing composition

A room temperature curing composition comprising an emulsion obtained by a multi-stage polymerization of a plurality of monomers, said emulsion comprising emulsion particles, the core of which is formed by polymerization of 1-30 weight % of (A) a silyl group-containing vinyl monomer of the following general formula (I), 60-99 weight % of (B) at least one member selected from the class consisting of alkyl methacrylates whose alkyl moieties contain not fewer than 4 carbon atoms each and cycloalkyl methacrylates whose cycloalkyl moieties contain not fewer than 4 carbon atoms each, and 0-39 weight % of (C) a non-hydrophilic vinyl monomer other than (B) and the outer shell of which is formed by polymerization of 0.5-30 weight % of (D) at least one hydrophilic vinyl monomer selected from the class consisting of .alpha.,.beta.-ethylenically unsaturated carboxylic acids, styrenesulfonic acid, vinylsulfonic acid, sodium styrenesulfonate, 2-sulfoethyl methacrylate sodium, 2-sulfoethyl methacrylate ammonium, acrylamide, methacrylamide, N-methylolacrylamide, N-methylolmethacrylamide, dialkylaminoalkyl methacrylates, dialkylaminoalkyl methacrylate hydrochlorides, 2-aminoethyl methacrylate hydrochloride, polyethoxylated vinyl monomers and polypropoxylated vinyl monomers, 0-30 weight % of (A) a silyl group-containing vinyl monomer of the following general formula (I), 60-99.5 weight % of (B) at least one member selected from the class consisting of alkyl methacrylates whose alkyl moieties contain not fewer than 4 carbon atoms each and cycloalkyl methacrylates whose cycloalkyl moieties contain not fewer than 4 carbon atoms each, and 0-39.5 weight % of (C) a non-hydrophilic vinyl monomer other than (B):

• ##STR11## wherein R represents a monovalent hydrocarbon group selected from C.sub.1-10 alkyl, aryl and aralkyl groups;
• X represents a halogen atom or a group selected from the class consisting of alkoxy, hydroxy, acyloxy, aminooxy, phenoxy, thioalkoxy and amino;
• y represents a whole number of 0-2;
• where X and R, bound to Si, respectively represent more than one group, such groups may be the same or different groups.