| abstract |
A silicon-containing polyacetal copolymer comprises silicone oil units having the formula (A) and polyacetal units:n (wherein R₁ stands for alkyl or phenyl group; R₂, a divalent organic group; X, a group selected from among -NH₂, -OH,n R₄OH, R₅COOH, R₆COOR₇, -R₈ and -OR₉, R₃ representing a divalent organic group, R₄ ∼ R₆ alkylene groups with number of carbon atoms 1∼ 10, R₇ ∼ R₉ alkyl groups with number of carbon atoms 1 ∼ 10, and n a number of 5 ∼ 1000). |