ROOM TEMPERATURE SETTING COMPOSITIONS

摘要

Room temperature setting compositions usable as sealants, waterproofing materials, adhesives, coating materials and so on. These compositions are suitable for fields wherein the product of setting is required to exhibit per se sufficiently high cohesion and the capability of dynamically following the contour of an adherend, and are particularly excellent as elastic adhesives. Further, the compositions are excellent in setting properties, particularly fast setting properties, thus being useful as fast setting adhesives and fast setting sealants. Specifically, a room temperature setting composition comprising a polyoxyalkylene polymer (A) having a hydrolyzable silicon group represented by the general formula (1): SiXaR13-a and a molecular weight of 8000 to 50000, which contains as the essential component a polyoxyalkylene polymer having a hydrolyzable silicon group represented by the general formula (1) wherein a is 3 and a molecular weight of 8000 to 50000; and another room temperature setting composition comprising a polyoxyalkylene polymer (A) having a hydrolyzable silicon group represented by the general formula (1) and a molecular weight of 8000 to 50000, which contains as the essential components a polyoxyalkylene polymer having a hydrolyzable silicon group represented by the general formula (1) wherein a is 3 and a molecular weight of 8000 to 50000 and a polymer (B) obtained by polymerizing a polymerizable monomer (C) having an unsaturated group: -SiXaR13-a wherein R1 is a C¿1?-C20 substituted or unsubstituted monovalent organic group; X is hydroxyl or a hydrolyzable group; and a is 1, 2 or 3, with the proviso that when a plurality of R?1¿'s are present, they may be the same or different from each other, and that when a plurality of X's are present, they may be the same or different from each other.