Acid catalyzed copolymerization of water, tetrahydrofuran...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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C428S413000, C428S423100, C528S088000, C528S091000, C528S106000, C528S110000, C528S116000, C528S408000, C528S418000, C528S419000, C528S421000, C525S523000

Reexamination Certificate

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07112635

ABSTRACT:
Non-gelled polymeric polyols are prepared by the acid catalyzed copolymerization of water, tetrahydrofuran and multifunctional epoxy resins. The polyols can be cured with OH reactive crosslinkers such as amino resins and polyisocyanates to yield thermosetting coatings with useful properties.

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U.S. Appl. No. 10/062,924, filed Jan. 31, 2002.

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