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US 7,863,400 B2Granted
Deoxybenzoin-based anti-flammable polyphosphonate and poly(arylate-phosphonate) copolymer compounds, compositions and related methods of use
AssigneeUniversity of Massachusetts
InventorsTodd Emrick, Thangamani Ranganathan, E. Bryan Coughlin, Richard J. Farris, Joseph Zilberman
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Abstract
Deoxybenzoin-phosphonate and other copolymer compounds, compositions and related methods.
Claims26
A low flammability polymer compound of a formula
- wherein R is a C(O)C(R1)(R2) moiety, where R1 and R2 is independently selected from H, alkyl and substituted alkyl;
- R′ is selected from C(O)C(R′1)(R′2), C(R′3)(R′4) and covalent bond moieties, where R′1 and R′2 is independently selected from H, alkyl and substituted alkyl, and R′3 and R′4 is independently selected from alkyl and substituted alkyl;
- R″ is selected from alkyl, substituted alkyl, phenyl, substituted phenyl, aryl and substituted aryl moieties;
- X is selected from alkyl, substituted alkyl, phenyl, substituted phenyl, aryl, and substituted aryl moieties;
- m and m′ are integers selected from 0 and 1, provided one of m and m′ is 0, when the other is 0;
- and n is selected from 1 and integers greater than 1.
3 more elements
A low flammability polymer compound of a formula
- wherein n is an integer corresponding to the molecular weight of said compound.
A polymer comprising the polycondensation product of a deoxybenzoin monomer with phthaloyl and phosphonate monomers, said deoxybenzoin monomer selected from monomers of a formula
- wherein R1 and R2 are independently selected from H, alkyl and substituted alkyl moieties and combinations of said monomers;
- said phythaloyl monomer is selected from alkyl, substituted alkyl, phenyl, substituted phenyl, aryl and substituted aryl phthaloyl monomers and combinations of said monomers;
- and said phosphonate monomer is selected from alkyl, substituted alkyl, phenyl, substituted phenyl, aryl and substituted aryl phosphonate monomers and combinations of said monomers.
A method of using phenylphosphonate monomer to affect a physical property of a low flammability polymer, said method comprising:
- reacting deoxybenzoin monomers and isophthaloyl monomers under polymerization conditions;
- and
- introducing a phenylphosphonate monomer into said reaction, said phenylphosphonate in an amount sufficient to affect at least one of char yield, heat release capacity and solubility of the polymerization product of said reaction.
Dependencies are inferred from the claim text.