Polyimide molecular weight enhancement by solvent extraction

Details Polyimide molecular weight enhancement by solvent extraction Polyimide molecular weight enhancement by solvent extraction

1987-06-01

1990-03-06

Kight, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528125, 528126, 528128, 528188, 528229, C08G 6926

Patent

active

049067311

ABSTRACT:
Extraction of polyamic acid-polyimide gel in bipolymerized polyimide manufacturing process with a solvent containing an extraction-enhancing agent, which is a pyridine, picoline, or quinoline, leads to a polyimide film having increased molecular weight. Polyimides are valuable materials used in fabricating articles which must withstand high temperatures, especially in aerospace applications, and in the manufacture of electronic circuit boards.

REFERENCES:
patent: 3961009 (1976-06-01), Yoda et al.
patent: 4358581 (1982-11-01), Sutton, Jr.
patent: 4470944 (1984-09-01), Asakura et al.

Affiliated with

Also associated with

Rating

Polyimide molecular weight enhancement by solvent extraction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyimide molecular weight enhancement by solvent extraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyimide molecular weight enhancement by solvent extraction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-48202