| abstract |
A polyether having molecular weight from 1,000 to 50,000, end-blocked with hydrolyzable silyl groups and represented by the general formula (P): ##STR1## where R 1 , R 2 , R 6 and R 7 individually represent a divalent hydrocarbon group, R 4 represents a monovalent hydrocarbon group, R 8 represents an alkyl group with 1 to 6 carbon atoms, a represents a number from 1 to 3, m represents a number from 10 to 500, n represents a number of 1 or greater and --N═X═N-- represents a residue group of a diimino heterocyclic compound, from which nitrogen-bonded hydrogen atoms are eliminated, said diimino heterocyclic compound having no ##STR2## bond in a molecule is produced and utilized in room temperature curing compositions containing inorganic filler and curing catalyst. There is also disclosed a method for producing the above polyether by reacting polyoxyalkylene end-blocked with epoxy groups, diimino heterocyclic compound and organo silicon compound. |