Alkoxylation using calcium catalysts and products therefrom
AssigneeUnion Carbide Chemicals and Plastics Company Inc.
InventorsRobert J. Knopf, Louis F. Theiling, Jr.
Life of this patent
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Abstract
Narrow, balanced alkoxylation product mixture distributions having at least one alkoxylation product constituting more than 20 weight percent of the mixture can be provided by modified, calcium-containing catalysts. Catalysts for alkoxylation processes can be produced from lime and can, with modification, be used to make the narrow, balanced alkoxylation product mixture distribution.
Claims31
An alkoxylation product mixture resulting from the reaction of an organic compound having at least one active hydrogen with an epoxide in which the mole ratio of reacted epoxide per active hydrogen is at least about 4 characterized by having at least one alkoxylation moiety which constitutes about 20 to 40 weight percent of the mixture;
- the weight percent of the mixture having three or more oxyalkylene units than the average peak alkoxylation specie is less than about 12 weight percent of the mixture;
- the alkoxylation specie having one oxyalkylene group more than that of the most prevalent specie and the alkoxylation specie having one oxyalkylene group less than that of the most prevalent specie are present in a weight ratio to the most prevalent specie of about 0.6:1 to 1:1.
An alkoxylation product mixture resulting from the reaction of an alcohol with an epoxide have an alkoxylation specie distribution corresponding to the formula
- P.sub.n =A.times.e.sup.-(n-n)/2.6+0.4n
- wherein n is an integer of at least one and is the number of oxyalkylene groups per reactive hydrogen site of the alcohol for the alkoxylation specie, n is the weight average oxyalkylene number of the mixture, A is the weight percent of the most prevalent alkoxylation specie in the mixture and P.sub.n is, within plus or minus two percentage points, the weight percent of the alkoxylation specie having n oxyalkylene groups per active hydrogen site, based on the weight of the mixture.
An alkoxylation product mixture resulting from the reaction of a monohydric, aliphatic alcohol of about 8 to 20 carbon atoms with ethylene oxide and/or propylene oxide having an alkoxylation specie distribution corresponding to the formula
- P.sub.n =A.times.e.sup.-(n-n)/2.6+0.4n
- wherein n is an integer of at least one and is the number of oxyalkylene groups per reactive hydrogen site of the alcohol for the alkoxylation specie, n is the weight average oxyalkylene number of the mixture, A is the weight percent of the most prevalent alkoxylation specie in the mixture in which said most prevalent alkoxylation specie has 6, 7, 8, 9, 10, 11 or 12 oxyalkylene units and P.sub.n is, within plus or minus two percentage points, the weight percent of the alkoxylation specie having n oxyalkylene groups per active hydrogen site, based on the weight of the mixture.
An alkoxylation product mixture resulting from the reaction of a monohydric, aliphatic alcohol of about 1 to 7 carbon atoms with ethylene oxide and/or propylene oxide having an alkoxylation specie distribution corresponding to the formula
- P.sub.n =A.times.e.sup.-(n-n)/2.6+0.4n
- wherein n is an integer of at least one and is the number of oxyalkylene groups per reactive hydrogen site of the alcohol for the alkoxylation specie, n is the weight average oxyalkylene number of the mixture, A is the weight percent of the most prevalent alkoxylation specie in the mixture in which said most prevalent alkoxylation specie has 6, 7, 8, 9, 10, 11 or 12 oxyalkylene units and P.sub.n is, within plus or minus two percentage points, the weight percent of the alkoxylation specie having n oxyalkylene groups per active hydrogen site, based on the weight of the mixture.
Dependencies are inferred from the claim text.