Partial esters of hydroxy polycarboxylic acids

Details Partial esters of hydroxy polycarboxylic acids Partial esters of hydroxy polycarboxylic acids

C - Chemistry, Metallurgy

07

C

260/486.2

C07C 69/67 (2006.01) C02F 5/10 (2006.01) C08G 65/332 (2006.01) C23F 11/10 (2006.01) C23F 11/12 (2006.01) C23F 11/16 (2006.01) C23F 11/167 (2006.01)

Patent

CA 1046080

A B S T R A C T For inhibiting corrosion and scale on ferrous metal parts in a circulating water system there is added to the water in such system from 10 to 500 ppm of a partial ester of a polyfunctional acid having a free carboxylate, phosphonate or sulfonate group and another carboxyl group which is esterified with a polyoxyalkylated derivative of an alkyl, alkaryl, or alkenyl alcohol having a terminal hy- drocarbon group of 8-20 carbon atoms. In some preferred em- bodiments there is added with the partial ester from 10 to 500 ppm of a dispersible enhancing agent which may also in- clude a surface active agent for dispersing the agent in water. Preferred partial esters include partial esters of citric, malic, tartaric, maleic, adipic and phthalic acids partially esterified with an alkyl polyoxyethylene alcohol having 2 to 4 ethoxy groups.

241706

Affiliated with

Also associated with

Rating

Partial esters of hydroxy polycarboxylic acids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Partial esters of hydroxy polycarboxylic acids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Partial esters of hydroxy polycarboxylic acids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-536896