Novel hydrotalcites, syntheses, and uses
AssigneeAristech Chemical Corporation
InventorsThomas S. Brima, Masaki Fujii, George R. Gallaher JR., Sehyun Kim, Edwin B. Townsend IV, Gwendolyn Hawk
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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, unsaturated carboxylates of vinylacetic acid and C2 and higher organic acids containing heteroatoms such as nitrogen, phosphorous, sulfur and halogens are disclosed, along with methods of synthesis and uses.
Claims70
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 comprising a carboxylate of an acid containing at least one heteroatom selected from the group consisting of nitrogen, phosphorous, sulfur and halogens.
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, M3+ is a trivalent cation and An− is at least one organic anion comprising a carboxylate of an acid containing at least one heteroatom selected from the group consisting of nitrogen, phosphorous, sulfur and halogens, 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-poly-addition polymer blend comprising:
- at least one poly-addition polymer;
- 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− is at least one organic anion comprising a carboxylate of an acid containing at least one heteroatom selected from the group consisting of nitrogen, phosphorous, sulfur and halogens.
A method of making a synthetic hydrotalcite-poly-addition polymer blend, said method comprising:
- mixing an emulsion comprising at least one poly-addition polymer 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, M3+ is a trivalent cation and An− is at least one organic anion comprising a carboxylate of an acid containing at least one heteroatom selected from the group consisting of nitrogen, phosphorous, sulfur and halogens.
A synthetic hydrotalcite-poly-addition polymer blend comprising:
- a maleated polyolefin, at least one unmodified poly-addition polymer;
- 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− is at least one organic anion comprising a carboxylate of an amino acid.
Dependencies are inferred from the claim text.