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US 8,507,699 B2Granted
Bisphenol polymer structural units and method of making the same
AssigneeSabic Innovative Plastics IP B.V.
InventorsShubashree Swaminathan, Venkata Ramanarayanan Ganapathy Bhotla, Jean Francois Morizur
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Abstract
Provided herein are isosorbide-based bisphenol polymer structural units and methods of making the same. These structural units may be polymerized with one or more other types of structural units to form polymers, such as polycarbonates.
Claims15
A bisphenol for use as a polymer structural unit comprising formula (I):
- wherein R1 is an isosorbide unit and R2-R9 are independently selected from the group consisting of a halogen, an arylalkyl, an ethoxy, and an alkyl ester.
A method of making a bisphenol for use as a polymer structural unit, wherein the bisphenol comprises formula (I):
- wherein R1 is an isosorbide unit and R2-R9 are independently selected from the group consisting of a hydrogen, a halogen, an arylalkyl, a C1-C6 alkyl, and an alkyl ester,
- comprising subjecting a first reaction mixture of a first reactant, a second reactant, and a melt transesterification catalyst to melt transesterification conditions, wherein the first reactant is an isosorbide and the second reactant is
- wherein R is selected from the group consisting of a hydrogen, a methyl, a C1-C6 alkyl, and an aromatic, and wherein the second reactant reacts with the isosorbide to form the bisphenol of formula (I).
Dependencies are inferred from the claim text.