Prepolymers containing imide linkages

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

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521184, 548477, 548451, C07D20990, C07D20932, C08

Patent

active

049468731

ABSTRACT:
Compound having the formula ##STR1## wherein X is the residue of a polyoxyalkylene diamine or triamine having an average equivalent weight of at least 500, after having deleted the two or three amine groups,

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