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US 7,645,850 B2Granted
Poly(block-phosphonato-ester) and poly(block-phosphonato-carbonate) and methods of making same
AssigneeFrx Polymers, Inc.
InventorDieter Freitag
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Abstract
Compositions including poly(block-phophonato-esters) or poly(block-phosphonato-carbonate) and a process for making them from oligomeric phosphonates and/or polyphosphonates and polyester and/or polycarbonates are disclosed. The compositions provide tough flame retardant materials and coatings.
Claims49
A polymer comprising:
- at least one phosphonate oligomer or polyphosphonate block;
- and
- one or more polyester, polycarbonate, or combination thereof covalently linked to the at least one phosphonate oligomer or polyphosphonate to form a poly(block-phosphonato-ester) or poly(block-phosphonato-cabonate);
- wherein covalent linkages are between the at least one phosphonate oligomer or polyphosphonate and the one or more polyester, polycarbonate, or combination thereof to provide a block polymer having a single glass transition temperature (Tg).
1 more element
A method for making a polymer comprising:
- combining at least one phosphonate oligomer or polyphosphonate with one or more polyester, polycarbonate, or combinations thereof to form a mixture;
- providing a transesterification catalyst wherein a reaction mixture is formed when the transesterification catalyst is provided;
- heating the reaction mixture;
- and
- removing volatile reaction by-products;
- wherein the steps of heating the reaction mixture and removing volatile reaction by-products results in a transetserification polycondensation whereby covalent linkages are formed between the at least one phosphonate oligomer or polyphosphosphonate and one or more polyester, polycarbonate, or combination thereof resulting in a block polymer have a single glass transition temperature (Tg);
- and
- wherein a poly(block-phosphonato-ester) or poly(block-phosphonato-cabonate) is formed when substantially no volatile reaction by-products are being generated.
5 more elements
A poly(block-phosphonato-ester) or poly(block-phosphonato-cabonate) prepared by a method comprising:
- combining at least one phosphonate oligomer or polyphosphonate with one or more polyester, polycarbonate or combinations thereof to form a mixture;
- providing a transesterification catalyst wherein a reaction mixture is formed when the transesterification catalyst is provided;
- heating the reaction mixture;
- and
- removing volatile reaction by-products;
- wherein the steps of heating the reaction mixture and removing volatile reaction by-products results in a transesterification polycondensation whereby covalent linkages are formed between the at least one phosphonate oligomer or polyphosphonate and one or more polyester, polycarbonate, or combination thereof resulting in a block polymer having a single glass transition temperature (Tg);
- and
- wherein the poly(block-phosphonato-ester) or poly(block-phosphonato-cabonate) is formed when substantially no volatile reaction by-products are being generated.
5 more elements
A polymer blend comprising:
- a poly(block-phosphonato-ester) or poly(block-phosphonato-cabonate) made by transesterification polycondensation whereby covalent linkages are formed between at least one phosphonate oligomer or polyphosphonate and one or more polyester, polycarbonate, or combinations thereof resulting in a block polymer having a single glass transition temperature (Tg);
- and
- a second polymer.
Dependencies are inferred from the claim text.