Polyoxazolidones derived from bisanhydrohexitols

Details Polyoxazolidones derived from bisanhydrohexitols Polyoxazolidones derived from bisanhydrohexitols

2011-05-24

2011-05-24

Sellers, Robert (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C528S053000, C528S055000, C528S073000

Reexamination Certificate

active

07947785

ABSTRACT:
Disclosed is a method for preparing polyoxazolidones wherein an ether of a bisanhydrohexitol is reacted with a diisocyanate under conditions which form polyoxazolidones. Preferred bisanhydrohexitols include isoidide, isomannide and isosorbide. The polyoxazolidones are highly crosslinked, rigid, and have high solvent resistance.

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