Surfactant
AssigneesCroda International PLC, Croda Americas LLC
InventorsWilliam Harry McNamee, Trevor Graham Blease, Johnny Denis Grade, Hanamanthsa Shankarsa Bevinakatti
Life of this patent
Estimating the term…
Abstract
A compound of the formula R1.[(AO)n.—R2]m (I) where: R1 is the residue of a group having at least m active hydrogen atoms; AO is an alkylene oxide residue; each n is independently from 1 to 100; m is at least 2; and each R2 is independently H, a C1 to C21 hydrocarbyl, or an acyl group —OC.R3, where R3 is a C1 to C21 hydrocarbyl group, wherein on average greater than one of the R2 groups is or comprises a C4 to C21 hydrocarbyl group comprising at least two ethylenic double bonds. The compounds are particularly suitable for use in preparing aqueous emulsions or dispersions of resins and polymers, especially alkyd resins.
Claims23
A method of forming an aqueous alkyd resin emulsion, comprising:
- i) combining the alkyd resin and a mixture of alkyd resin emulsifying compounds represented by formula (I):
- R1.[(AO)n.R2]m (I)
- wherein:
- R1 independently represents the residue of, or derived from, a sugar having a linear C4 to C7 chain and at least m active hydrogen atoms in hydroxyl groups;
- AO independently represents an alkylene oxide residue;
- each n is independently from 5 to 50;
- m is from 3 to 6;
- total n is from 30 to 300;
- and
- R2 independently represents a hydrogen atom, or an acyl group —(CO)R3;
- R3 independently represents a C15 to C19 hydrocarbyl group;
- wherein:
- a) on average each compound comprises from 2 to 6 acyl groups;
- and
- b) on average at least 1.2 of the R2 groups per compound comprises a C15 to C19 hydrocarbyl group comprising at least two ethylenic double bonds;
- ii) including water to form a water-in-oil (resin) emulsion.
An aqueous emulsion or dispersion, comprising:
- i) polymeric particles comprising an alkyd resin;
- and ii) a mixture of alkyd resin emulsifying compounds represented by formula (I):
- R1.[(AO)n.R2]m (I)
- wherein:
- R1 independently represents the residue of, or derived from, a sugar having a linear C4 to C7 chain and at least m active hydrogen atoms in hydroxyl groups;
- AO independently represents an alkylene oxide residue;
- each n is independently from 5 to 50;
- m is from 3 to 6;
- total n is from 30 to 300;
- and R2 independently represents a hydrogen atom, or an acyl group —(CO)R3;
- R3 independently represents a C15 to C19 hydrocarbyl group;
- wherein a) on average each compound comprises from 2 to 6 acyl groups;
- and b) on average at least 1.2 of the R2 groups per compound comprises a C15 to C19 hydrocarbyl group comprising at least two ethylenic double bonds.
A mixture of alkyd resin emulsifying compounds represented by formula (I):
- R1.[(AO)n.R2]m (I)
- wherein:
- R1 independently represents the residue of, or derived from, a sugar having a linear C4 to C7 chain and at least m active hydrogen atoms in hydroxyl groups;
- AO independently represents an alkylene oxide residue;
- each n is independently from 5 to 50;
- m is from 3 to 6;
- total n is from 30 to 300;
- and
- R2 independently represents a hydrogen atom, or an acyl group —(CO)R3;
- R3 independently represents a C15 to C19 hydrocarbyl group;
- wherein:
- a) on average each compound comprises from 2 to 6 acyl groups;
- and
- b) on average at least 1.2 of the R2 groups per compound comprises a C15 to C19 hydrocarbyl group comprising at least two ethylenic double bonds;
- and
- c) at least one of the ethylenic double bonds is reactive during curing of an alkyd resin.
Dependencies are inferred from the claim text.