Blocked amine terminated polycarbonates and products obtained th

Details Blocked amine terminated polycarbonates and products obtained th Blocked amine terminated polycarbonates and products obtained th

1990-08-03

1991-11-26

Bleutge, John C.

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

Synthetic resins

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

525394, 525425, 525433, 525467, 528170, 528203, C08G 6414, C08G 6418, C08L 6900

Patent

active

050682849

ABSTRACT:
Blocked amine terminated polycarbonate is provided which can be used to form anhydride terminated polycarbonates, or copolymers with various functionalized organic polymers. A blocked amino phenol, such as N-t-butoxycarbonyl tyramine can be used as a chain stopper under interfacial conditions to chain stop polycarbonate. The t-butoxycarbonyl can be removed by melt processing the polycarbonate to yield an amine end group which can be reacted with other polymers or with an organic dianhydride to form anhydride terminated polycarbonate. The anhydride terminated polycarbonates can be used to form copolymers with amine terminated polyamides.

REFERENCES:
patent: 3085992 (1963-04-01), Lee
patent: 3399172 (1968-08-01), Jaquiss
patent: 4111910 (1978-09-01), Baggett
patent: 4556704 (1985-12-01), Rosenquist
patent: 4732934 (1988-03-01), Hathaway
patent: 4792477 (1988-12-01), Ochiumi
patent: 4940771 (1990-07-01), Maresca
patent: 4959411 (1990-09-01), Gambale

Affiliated with

Also associated with

Rating

Blocked amine terminated polycarbonates and products obtained th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Blocked amine terminated polycarbonates and products obtained th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blocked amine terminated polycarbonates and products obtained th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2386359