Secondary amine-terminated oligomers and copolyurethanecarbonate

Details Secondary amine-terminated oligomers and copolyurethanecarbonate Secondary amine-terminated oligomers and copolyurethanecarbonate

1986-06-23

1987-09-22

Pertilla, Theodore E.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525467, 525471, C08L 7900

Patent

active

046956123

ABSTRACT:
Secondary amine-terminated aromatic oligomers are prepared by conventional reactions for the formation of such polymers as polyimides, polyethersulfones and polyetherketones, using such compounds as methylamino or phenylamino anilines or phenols as endcapping agents. The secondary amine-terminated oligomers may be reacted with cyclic polycarbonate oligomers to prepare copolyurethanecarbonates which are useful as engineering thermoplastics.

REFERENCES:
patent: 4214073 (1980-07-01), Passagne et al.

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