Polyesters including isosorbide as a comonomer and methods for making same
First Claim
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1. A method for making a polyester polymer comprising:
- (1) combining in a reactor a monomer comprising a terephthaloyl moiety;
optionally, one or more other monomers containing an aromatic diacid moiety;
a monomer comprising an ethylene glycol moiety;
a monomer comprising an isosorbide moiety;
optionally, one or more other monomers comprising a diol moiety; and
optionally, a monomer comprising a diethylene glycol moiety, with a condensation catalyst suitable for condensing aromatic diacids and glycols; and
(2) heating said monomers and said catalyst to a temperature sufficient to polymerize said monomers into a polyester polymer having at least terephthaloyl moieties, ethylene glycol moieties nd isosorbide moieties;
wherein said heating is continued for a sufficient time to yield an isotropic polyester having an inherent viscosity of at least about 0.35 dL/g when measured as a 1% (weight/volume) solution of said polyester in o-chlorophenol at a temperature of 25°
C.
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Abstract
An isotropic polyester polymer and method for making the polyester is prepared by (1) combining in a reactor a monomer containing a terephthaloyl moiety; optionally, one or more other monomers containing an aromatic diacid moiety; a monomer comprising an ethylene glycol moiety; a monomer containing an isosorbide moiety; optionally, one or more other monomers containing a diol moiety; and optionally, a monomer containing a diethylene glycol moiety; with a condensation catalyst suitable for condensing aromatic diacids and glycols; and (2) heating the monomers and catalyst to polymerize the monomers to yield a polyester having an inherent viscosity of at least about 0.35 dL/g.
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Citations
45 Claims
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1. A method for making a polyester polymer comprising:
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(1) combining in a reactor a monomer comprising a terephthaloyl moiety;
optionally, one or more other monomers containing an aromatic diacid moiety;
a monomer comprising an ethylene glycol moiety;
a monomer comprising an isosorbide moiety;
optionally, one or more other monomers comprising a diol moiety; and
optionally, a monomer comprising a diethylene glycol moiety, with a condensation catalyst suitable for condensing aromatic diacids and glycols; and(2) heating said monomers and said catalyst to a temperature sufficient to polymerize said monomers into a polyester polymer having at least terephthaloyl moieties, ethylene glycol moieties nd isosorbide moieties; wherein said heating is continued for a sufficient time to yield an isotropic polyester having an inherent viscosity of at least about 0.35 dL/g when measured as a 1% (weight/volume) solution of said polyester in o-chlorophenol at a temperature of 25°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An isotropic polyester comprising terephthaloyl moieties;
- optionally, other aromatic diacid moieties;
ethylene glycol moieties;
diethylene glycol moieties;
isosorbide moieties; and
, optionally, one or more other diol moieties, wherein said polyester has an inherent viscosity of at least about 0.35 dL/g when measured as a 1% (weight/volume) solution of said polyester in o-chlorophenol at a temperature of 25°
C. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
- optionally, other aromatic diacid moieties;
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32. An isotropic polyester comprising terephthaloyl moieties;
- optionally, other aromatic diacid moieties;
ethylene glycol moieties;
optionally, diethylene glycol moieties;
isosorbide moieties; and
optionally, one or more other diol moieties wherein said polyester has an inherent viscosity of at least about 0.5 dL/g when measured as a 1% (weight/volume) solution of said polyester in o-chlorophenol at a temperature of 25°
C. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
- optionally, other aromatic diacid moieties;
Specification