JPS6416839A - Metal-containing silicone resin composition and production thereof - Google Patents

Abstract

PURPOSE:To obtain the titled novel composition capable of sustaining for a long period in high stability organism latch-proof performance attributable to outstanding water-repellent effect, also capable of slow releasing antifouling performance through the degradation of the resin, by reaction between each specific silicon compound and metal alcoholate or hydroxide. CONSTITUTION:A reaction is carried out between (A) a silicon compound of formula I (R<1> is H, aryl, etc.; R<2> is H or 1-18C alkyl; p is 0 or positive integer; q is positive integer; however, 2<p+q<=4) and (B) a metal (of >=2 valence) alcoholate of formula II (M is divalent metal such as Cu or Mg; R5 is reactive OH or alkoxy; R4 is O, OH etc., not involving the reaction; r is 0, 1 or 2; s is positive integer; however, r+s is number equal to the valence of M) or hydroxide, followed by, if needed, reaction of a modifier with the residual reactive hydroxyl group in the resulting product, thus obtaining the objective composition comprising a polymer having linkage of formula III (R3 is R5 or modifier residue; m is positive integer; n is 0 or positive integer; l is 0, 1, or 2; however, m+n+l is number equal to the valence of M).