HARPIKSPARTIKLER AV DESINTEGRASJONSTYPEN, DERES FREMSTILLING OG BELEGGSMIDDEL INNEHOLDENDE SLIKE PARTIKLER

摘要

Disintegration type resin particles having an average grain diameter of 0.01 to 250 mu and being composed of a crosslinked resin having at least one crosslinking structure carried metal ester bond of the formula: -X-O - @@M-@- R1)n R1 is a monovalent, bioactive organic acid residue; M stands for a polyvalent metal having a valence of 3 or more; m is an integer of 2 or more; n is an integer of 1 or more, providing that the sum of m and n is equal to the valence of said metal @, and a coating composition containing said resin particles are provided. The coating obtained is characterized in that it is gradually hydrolyzed in an ionic atmosphere as in sea water and dissolved out, liberating a bioactive organic acid as well as metal ions.