Method for making multiple chemically functional oligomers

Details Method for making multiple chemically functional oligomers Method for making multiple chemically functional oligomers

1995-06-05

1998-02-03

Hampton-Hightower, P.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528128, 528172, 528173, 528174, 528183, 528185, 528188, 528220, 528229, 528350, 528353, 525432, 525436, C08G 7310, C08G 6926

Patent

active

057145660

ABSTRACT:
Thermomechanical and thermo-oxidative stabilities in resin composites across the range of aerospace "engineering thermoplastic" resins are improved by forming four crosslinks at each addition polymerization site in the backbone of the resin using crosslinking functionalities of the general formula: ##STR1## in the oligomers, wherein Z= ##STR2## .beta.=the residue an organic radical selected from the group consisting of: ##STR3## --O--.O slashed.--COOH, --O--.O slashed.--COX, --X, --O.paren open-st.(R.sub.8 .paren close-st.OH, ##STR4## --O--.O slashed.--NH.sub.2 ; E= ##STR5## R.sub.8 =a divalent organic radical; X=halogen;

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