Patent ID: 8217130

Claim:
A method for producing a curable composition, the method comprising: polymerizing (A) a crosslinkable silyl group-containing organic polymer, wherein the polymer (A) is at least one selected from the group consisting of a crosslinkable silyl group-containing polyoxyalkylene polymer, a crosslinkable silyl group-containing (meth)acrylic-modified polyoxyalkylene polymer, a crosslinkable silyl group-containing polyisobutylene polymer, and a first crosslinkable silyl group-containing (meth)acrylic polymer; preparing (B) a second (meth)acrylic polymer obtained by polymerizing a (meth)acrylic monomer having a polymerizable unsaturated bond in the presence of a metallocene compound represented by the following formula (1) and a crosslinkable silyl group-containing thiol compound, at least one end of the (meth)acrylic polymer being bonded to a residue, —S—R3 (where R3 represents a group having a crosslinkable silyl group) obtained by removing a hydrogen atom from the crosslinkable silyl group-containing thiol compound; and blending said polymer (A) and said second (meth)acrylic polymer (B): wherein M represents a metal selected from the group consisting of metals of Groups 4, 5, and 14 of the periodic table, chromium, ruthenium, and palladium; R 1 and R 2 each independently represent at least one group selected from the group consisting of substituted or unsubstituted aliphatic hydrocarbon groups, substituted or unsubstituted alicyclic hydrocarbon groups, substituted or unsubstituted aromatic hydrocarbon groups, and substituted or unsubstituted silicon-containing groups, a hydrogen atom or a single bond, R 1 and R 2 may cooperate with each other to bond the two five-membered rings of the compound represented by the formula (1) and the plurality of adjacent groups R 1 or R 2 may cooperate with each other to form a cyclic structure; a and b each independently represent an integer of 1 to 4; Y represents a halogen atom or a hydrocarbon group in which at least part of hydrogen atoms may be substituted with a halogen atom; and n is 0 or an integer obtained by subtracting 2 from the valence of the metal M.