Curable Organosiloxane Resins Containing Boron

Abstract

The invention relates to a curable composition showing antimicrobial activity in cured state, the composition comprising (A) at least one boron containing siloxane resin consisting of constitutional units of formula (I) (Y—Z)nSiR1mXpOq  (I) wherein: R1 groups may be the same or different and each is independently selected from a hydrogen atom or a linear, branched, or cyclic hydrocarbon residue having 1 to 20 carbon atoms which may contain at least one heteroatom; X is a hydrolysable group, including, but not limited to OH (hydroxy), Cl, Br, I, or OR2 (alkoxy or aryloxy), wherein R2 is a linear, branched or cyclic hydrocarbon residue having 1 to 20 carbon atoms which may contain at least one heteroatom; Z is selected from a linear, branched or cyclic hydrocarbon residue having 2 to 60 carbon atoms which may contain at least one heteroatom; Y is a boron containing group; n, and q are integers from 1 to 3, and m and p are integers from 0 to 2 wherein n+m+p+q=4; (B) optionally, at least one curing catalyst. The invention also relates to an adhesive, sealant, or coating material comprising the curable composition and to use of the curable composition as an adhesive, sealant, or coating material.

Dependencies are inferred from the claim text.