Coating composition comprising polysiloxane quats

摘要

The present invention provides a curable coating composition comprising at least one linear or cyclic polysiloxane containing at least one quaternary ammonium group, a process for producing the aforesaid coating composition, and a process for producing a coating with the curable coating composition, and also the coatings and coating compositions themselves that are obtainable by the processes described.

主权项

1. A curable coating composition comprising:
at least one linear polysiloxane containing at least one quaternary ammonium group; and one or more binder components; wherein the polysiloxane is selected from the group of polysiloxanes of the general formula I:
MaM′a1M″a2M′″a3Db  general formula I;where:
M=(R13SiO1/2);M′=(R2R12SiO1/2);M″=(R3R12SiO1/2);M′″=(R4R12SiO1/2);D=(R12SiO2/2);a=0 to 1;a1=0 to 1;a2=0 to 1; anda3=>0 to 2;with the proviso that: a+a1+a2+a3=2; and
where:
b=1 to 500;R1 independently at each occurrence is identical or different linear or branched, optionally aromatic hydrocarbon radicals having 1 to 30 carbon atoms;R2 independently at each occurrence is identical or different alkoxy or acyloxy radicals, such as, methoxy, ethoxy, n-propoxy or isopropoxy radicals, acetoxy, hydroxyl;R3 independently at each occurrence is identical or different organic epoxy radicals; andR4 independently at each occurrence is identical or different organic radicals which carry quaternary ammonium functions.