Halogen-free flame retardant polyester
First Claim
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1. A polyester composition comprisinga) a polyester;
- b) a phosphorous containing compound, wherein said phosphorous compound is at least one selected from the group consisting of organic phosphinates, phosphonates, and phosphates;
c) a mineral-like stabilizer, wherein said mineral-like stabilizer is selected from the group consisting of calcium hydroxyapatite, boehmite, calcium carbonate, barium carbonate, calcium sulfate, barium sulfate, calcium hydrogen phosphate, barium hydrogen phosphate, calcium (meta)borate, barium (meta)borate, hydrotalcite, aluminium phosphate, wollastonite, dolomite, calcium titanate, barium titanate and glass fiber; and
d) an orthoester.
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Abstract
Novel polyester composition comprising a polyester, wherein said polyester comprises structural units derived from substituted or unsubstituted diacid or diester, a substituted or unsubstituted diol; a phosphorus containing compound and at least one selected from a stabilizer and an organic compound comprising at least one functional group is been disclosed. In addition methods for the preparation of the polyester composition and articles derived from said composition is disclosed.
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Citations
20 Claims
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1. A polyester composition comprising
a) a polyester; -
b) a phosphorous containing compound, wherein said phosphorous compound is at least one selected from the group consisting of organic phosphinates, phosphonates, and phosphates; c) a mineral-like stabilizer, wherein said mineral-like stabilizer is selected from the group consisting of calcium hydroxyapatite, boehmite, calcium carbonate, barium carbonate, calcium sulfate, barium sulfate, calcium hydrogen phosphate, barium hydrogen phosphate, calcium (meta)borate, barium (meta)borate, hydrotalcite, aluminium phosphate, wollastonite, dolomite, calcium titanate, barium titanate and glass fiber; and d) an orthoester. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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2. A polyester composition comprising
a) a polyester; -
b) a phosphorous containing compound; c) a mineral-like stabilizer, wherein said mineral-like stabilizer is selected from the group consisting of calcium hydroxyapatite, glass fibers, and a combination thereof and d) an orthoester.
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3. A polyester composition comprising
a) a polyester; -
b) a phosphorous containing compound; c) a mineral-like stabilizer, wherein said mineral-like stabilizer is selected from the group consisting of calcium hydroxyapatite, boehmite, calcium carbonate, barium carbonate, calcium sulfate, barium sulfate, calcium hydrogen phosphate, barium hydrogen phosphate, calcium (meta)borate, barium (meta)borate, hydrotalcite, aluminium phosphate, wollastonite, dolomite, calcium titanate, barium titanate and glass fiber; d) an orthoester; and e) a nitrogen compound, wherein said nitrogen compound is at least one selected from the group consisting of cyanuric acid, isocyanuric acid, melamine, melamine cyanurate, melamine phosphate, melamine pyrophosphate, and melamine polyphosphate.
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4. A polyester composition comprising
a) a polyester; -
b) a phosphorous containing compound; c) a mineral-like stabilizer, wherein said mineral-like stabilizer is selected from the group consisting of calcium hydroxyapatite, boehmite, calcium carbonate, barium carbonate, calcium sulfate, barium sulfate, calcium hydrogen phosphate, barium hydrogen phosphate, calcium (meta)borate, barium (meta)borate, hydrotalcite, aluminium phosphate, wollastonite, dolomite, calcium titanate, barium titanate and glass fiber; d) an orthoester; and e) a nitrogen compound, wherein said nitrogen compound is present in an amount between about 2 to about 20 weight percent based on the amount of the polyester.
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12. A polyester composition comprising
a) a polyester, wherein said polyester is at least one selected from the group consisting of polybutyleneterephthalate, polyethyleneterephthalate and poplypropyleneterephthalate; -
b) an organic phosphate; c) a mineral-like stabilizer selected from the group consisting of calcium hydroxyapatite and glass fiber; and d) an orthoester. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification