Novel hydrotalcites, syntheses, and uses
AssigneeSunoco, Inc. (R&M)
InventorsMasaki Fujii, George R. Gallaher JR., Sehyun Kim, Steven J. Monaco, Edwin B. Townsend IV, Thomas S. Brima, Gwendolyn Hawk
Life of this patent
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Abstract
Synthetic hydrotalcites of the general formula [M2+1−xM3+x(OH)2]x+[An−x/n.mH2O]x− where M2+ is a divalent cation, M3+ is a trivalent cation and An− is an organic anion selected from straight chain carboxylates of C16-C18 acids, carboxylates of aromatic acids, carboxylates of acrylic acid, unsaturated carboxylates of methacrylic acid and unsaturated carboxylates of vinylacetic acid are disclosed, along with methods of synthesis and uses.
Claims60
A synthetic hydrotalcite of the general formula:
- [M2+1−xM3+x(OH)2]x+[An−x/n.mH2O]x−
- wherein M2+ is a divalent cation, M3+ is a trivalent cation and An− is at least one organic anion selected from straight chain carboxylates of C5-C18 acids, carboxylates of aromatic acids carboxylates of acrylic acid, unsaturated carboxylates of methacrylic acid and unsaturated carboxylates of vinylacetic acid.
The synthetic hydrotalcite of the general formula:
- [M2+1−xM3+x(OH)2]x+[An−x/n.mH2O]x−
- wherein M2+ is a divalent cation, M3+ is a trivalent cation and An− is an anion comprising a mixture of at least two members of the group consisting of straight chain saturated carboxylates of C2-C4 acids, straight chain saturated carboxylates of C5-C18 acids, carboxylates of aromatic acids, unsaturated carboxylates of acrylic acid, unsaturated carboxylates of methacrylate acid and unsaturated carboxylates of vinylacetic acid.
A method of making a synthetic hydrotalcite having the general formula
- [M2+1−xM3+x(OH)2]x+[An−x/n.mH2O]x−
- wherein M2+ is a divalent cation source, M3+ is a trivalent cation source and An− is an organic anion source selected from straight chain carboxylates of C5-C18 acids, carboxylates of aromatic acids, carboxylates of acrylic acid, unsaturated carboxylates of methacrylic acid and unsaturated carboxylates of vinylacetic acid, said method comprising:
- reacting said trivalent cation source, M3+ with said organic anion source, An− to produce an intermediate;
- and
- reacting said intermediate with said divalent cation source, M2+ in water to produce said synthetic hydrotalcite.
A synthetic hydrotalcite-polyolefin blend comprising:
- a polyolefin;
- and
- a synthetic hydrotalcite of the general formula:
- [M2+1−xM3+x(OH)2]x+[An−x/n.mH2O]x−
- wherein M2+ is a divalent cation, M3+ is a trivalent cation and An− an organic anion source selected from straight chain carboxylates of C5-C18 acids, carboxylates of aromatic acids, carboxylates of acrylic acid, unsaturated carboxylates of methacrylic acid and unsaturated carboxylates of vinylacetic acid.
A method of making a synthetic hydrotalcite-polyolefin blend, said method comprising:
- mixing a polyolefin emulsion with a hydrotalcite of the following formula to obtain a blend,
- [M2+1−xM3+x(OH)2]x+[An−x/n.mH2O]x−
- wherein M2+ is a divalent cation source, M3+ is a trivalent cation source and An− is an organic anion source selected from straight chain carboxylates of C5-C18 acids, carboxylates of aromatic acids, carboxylates of acrylic acid, unsaturated carboxylates of methacrylic acid and unsaturated carboxylates of vinylacetic acid.
Dependencies are inferred from the claim text.