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US 5,378,757 AGranted
Water-dissipatable alkyd resins and coatings prepared therefrom
AssigneeEastman Chemical Company
InventorsWilliam W. Blount, Jr., Thauming Kuo
Life of this patent
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Abstract
Disclosed is a water-dissipatable alkyd resin containing a sulfonate group. The alkyd resin is prepared by reacting at least one monoglyceride, a polycarboxylic acid, and a polyol sulfomonomer adduct containing at least one sulfonate group. The alkyd resin is useful to prepare cross-linked coatings such as obtained with oil based paints.
Claims19
A process for the preparation of water-dissipatable alkyd resins comprising reacting:
- (a) about 30 to 80 weight percent of a monobasic fatty acid, fatty ester or naturally occurring, partially saponified oil,
- (b) about 10 to 40 weight percent of a glycol or polyol,
- (c) about 10 to 40 weight percent of a polycarboxylic acid, and
- (d) 2 to about 10 weight percent of a sulfomonomer or sulfomonomer adduct containing at least one sulfomonomer group, wherein the weight percent is based on the weight of sulfomonomer or sulfomonomer group,
- wherein, when the weight percentages of (a) through (d) are converted to their respective moles and equivalents, the total number of moles, M.sub.t, divided by the total equivalents of acid functionality, E.sub.a, is between 1.0 and 1.5 (K value);
- and the total equivalents of hydroxyl functionality, E.sub.OH, divided by the total equivalents of acid functionality, E.sub.a, is between 1.0 and 2.0 (R value).
3 more elements
A composition comprising a water-dissipatable alkyd resin made of the moieties of reaction products:
- (a) about 30 to 80 weight percent of a monobasic fatty acid, fatty ester or naturally occurring, partially saponified oil,
- (b) about 10 to 40 weight percent of a glycol or polyol,
- (c) about 10 to 40 weight percent of a polycarboxylic acid, and
- (d) 2 to about 10 weight percent of a sulfomonomer or sulfomonomer adduct containing at least one sulfomonomer group, wherein the weight percent is based on the weight of sulfomonomer or sulfomonomer group,
- wherein, when the weight percentages of (a) through (d) are converted to their respective moles and equivalents, the total number of moles, M.sub.t, divided by the total equivalents of acid functionality, E.sub.a, is between 1.0 and 1.5 (K value);
- and the total equivalents of hydroxyl functionality, E.sub.OH, divided by the total equivalents of acid functionality, E.sub.a, is between 1.0 and 2.0 (R value).
3 more elements
Dependencies are inferred from the claim text.