Heterobifunctional poly(ethylene glycol) and uses thereof

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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C525S482000, C549S352000, C549S223000, C549S482000, C548S518000, C548S473000, C546S255000, C562S498000, C556S449000

Reexamination Certificate

active

07612153

ABSTRACT:
The present invention provides bifunctional polymers, methods of preparing the same, and intermediates thereto. These compounds are useful in a variety of applications including the PEGylation of biologically active molecules. The invention also provides methods of using said compounds and compositions thereof.

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