Method for converting macrocyclic polyimide oligomers to linear

Details Method for converting macrocyclic polyimide oligomers to linear Method for converting macrocyclic polyimide oligomers to linear

1994-06-17

1995-08-01

Michl, Paul R.

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

Synthetic resins

From carboxylic acid or derivative thereof

528 19, 528 21, 528 33, 528 37, 528173, 528207, 528315, 528319, 528363, C08G 7310

Patent

active

054381142

ABSTRACT:
Macrocyclic polyimide oligomers are converted to linear polyimides by heating with a primary amine in the presence of a tertiary amine, tertiary phosphine, quaternary ammonium salt, quaternary phosphonium salt or hexaalkylguanidinium salt or heterocyclic analog thereof as a macrocyclic polyimide polymerization catalyst.

REFERENCES:
patent: 4324885 (1982-04-01), White et al.
patent: 4330666 (1982-05-01), White et al.
patent: 5357029 (1994-10-01), Takekoshi et al.
patent: 5362845 (1994-11-01), Takekoshi et al.

Affiliated with

Also associated with

Rating

Method for converting macrocyclic polyimide oligomers to linear does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for converting macrocyclic polyimide oligomers to linear , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for converting macrocyclic polyimide oligomers to linear will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-734325