Method of modifying a macromolecular system

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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C424S078170, C424S078380, C514S716000, C514S772700, C514S788000, C525S408000, C525S523000, C525S533000, C525S540000, C528S403000, C528S407000, C528S417000, C528S420000, C528S421000, C528S422000

Reexamination Certificate

active

07897698

ABSTRACT:
The present application discloses a method of modifying a macromolecule, the method comprising the steps of (i) providing the macromolecule; (ii) providing a compound of the general formula (I):wherein N is a primary amino group protected with the protecting group P, wherein the protecting group involves both free valences of the primary amino group; m is an integer of 1-12 and n is an integer of 1-2000; R1and R2are independently selected from the group consisting of hydrogen and C1-4-alkyl; and X is a reactive group; and (iii) allowing the compound of the general formula (I) to react with the macromolecule so as to form grafts on the macromolecule. Compounds of the general formula (i) and a method for the preparation thereof are also disclosed.

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