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US 11,236,040 B2Granted
Multiple charged ionic compounds derived from polyamines and compositions thereof and methods of preparation thereof
AssigneeEcolab USA Inc.
InventorsAshish Dhawan, Carter M. Silvernail
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Abstract
Disclosed herein are the multiple charged cationic or anionic compounds, methods of making thereof, and articles or compositions comprising thereof. The disclosed multiple charged cationic or anionic compounds are derived from polyamines through two reactions: an aza-Michael addition with an activated olefin having an ionic group and a ring-opening reaction with an epoxide.
Claims25
A compound comprising:
- a compound derived from a polyamine through a reaction between the polyamine and an activated olefin and an epoxide, wherein the polyamine and activated olefin undergo aza Michael Addition reaction and the polyamine and epoxide undergo ring opening reaction;
- wherein:
- the activated olefin has one of the following formulas;
- the epoxide is
- X is NH or O;
- R2 is H, CH3, or an unsubstituted, linear or branched C2-C10 alkyl, alkenyl, or alkynyl group;
- R2′ is H, CH3, or an unsubstituted or substituted, linear or branched C1-C10 alkyl, alkenyl, alkynyl group, —COOH, —CH2COOH, Y′, or —(CH2)m—Y′, wherein m is an integer of 2 to 4;
- R3 is absent or an unsubstituted, linear or branched C1-C30 alkylene group;
- Y is —NR4R5R6(+);
- Y′ is —COOH, —SO3H, —PO3H, —OSO3H, —OPO3H, or a salt thereof;
- R4, R5, and R6 are independently a C1-C10 alkyl group;
- R7 is H or alkyl;
- and
- R8 is alkyl, or —(CH2)k—O-alkyl, wherein k is an integer of 1-30;
- wherein the compound is a multiple charged cationic compound having 1, 2, 3, or more positive charges from the activated olefin and at least one nonionic group from the epoxide, or a multiple charged anionic compound having 1, 2, 3, or more negative charges from the activated olefin and at least one nonionic group from the epoxide.
12 more elements
Dependencies are inferred from the claim text.