Process for synthesizing specific complete mixed polyol esters
AssigneeThe Procter & Gamble Company
InventorsDavid Evans O'Connor, Glen Reid Wyness
Life of this patent
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Abstract
Reacting a partial polyol monocarboxylic acid ester with an acidic anhydride in the presence of a catalytic amount of boron trifluoride to produce specific complete mixed polyol esters, especially confectioner's hard butter.
Claims17
A process for preparing specific complete mixed polyol esters from [unsymmetrically substituted] partial polyol esters with substantially no ester group rearrangement comprising esterifying [said] a partial polyol [esters] ester with an acid anhydride in the presence of a catalytic amount of a boron trifluoride source , said partial polyol ester being from the group consisting of partial polyol esters from aliphatic diols having the hydroxyl groups unsymmetrically substituted with respect to the carbon chain and partial polyol ester from aliphatic polyol containing at least three hydroxyl groups .
A process for preparing a confectioner's hard butter comprising acylating the 2-hydroxyl groups in a diglyceride mixture comprising 1-palmitoyl-3-stearoyl glycerol, 1,3-distearoyl glycerol and 1,3-dipalmitoyl glycerol with oleic anhydride in the presence of a boron trifluoride catalyst, and separating the hard butter thus formed.
A process for preparing a confectioner's hard butter comprising:
- (1) admixing substantially completely hydrogenated palm oil with glycerol in the presence of a sodium alkoxide catalyst;
- (2) separating the 1,3-diglycerides formed;
- (3) acylating the 2-hydroxyl groups of the 1,3-diglycerides with oleic anhydride in the presence of a catalyst selected from the group consisting of boron trifluoride, boron trifluoride-Lewis base adducts and fluoroboric acid;
- and (4) separating the hard butter thus formed.
Dependencies are inferred from the claim text.