C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 15/18 (2006.01) A01N 55/00 (2006.01) A61K 8/58 (2006.01) A61Q 11/00 (2006.01) A61Q 17/00 (2006.01) C11D 1/65 (2006.01) C11D 1/835 (2006.01) C11D 1/94 (2006.01) C11D 3/16 (2006.01) D06M 13/46 (2006.01) D06M 13/50 (2006.01) D06M 13/513 (2006.01) D06M 16/00 (2006.01) C11D 1/10 (2006.01) C11D 1/62 (2006.01) C11D 1/66 (2006.01) C11D 1/72 (2006.01) C11D 1/90 (2006.01)
Patent
CA 2100670
A method of improving the stability and broadening the range of pH stability of an aqueous solution of from about 0.001 % to 5 % by weight of a water soluble organosilane containing hydrolyzable groups such as methyltrimethoxysilane, 3-(trimethox- ysilyl)propylimethyloctadecyl ammonium chloride and 3-(trimethoxysilyl)-propylmethyldi(decyl) ammonium chloride by the use of 0.05 % to 10 % by weight of a water soluble organic quaternary ammonium compound having at least one nitrogen-bonded hydrocarbon group of at least 8 carbon atoms and being free of silicon atoms, such as benzalkonium chloride, along with from about 0.5 % to 30 % by weight of at least one surfactant selected from the group consisting of nonionic, amphoteric sarcosine an- ionic, and cationic surfactants other than the water soluble ammonium compounds. The pH of the solution can be ad- justed to from about 1 to about 13.5 with a suitable acid or base. The resulting stable aqueous solutions are useful for depositing the water soluble organosilane on a vafiety of substrates to, among other things, serve as coupling agents, waterproofing agents and to render substrates antimicrobial and algicidal depending upon the nature of the organosilane.
Avery Richard W.
Brown Colin W.
Dwyer Sean G.
Martin Frederick H.
Bereskin & Parr
S.c. Johnson & Son Inc.
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