Polyamic acid to polyimide conversion by microwave heating

Details Polyamic acid to polyimide conversion by microwave heating Polyamic acid to polyimide conversion by microwave heating

1993-11-12

1995-09-26

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415781, 20415789, C25B 300

Patent

active

054531616

ABSTRACT:
An intermolecular and/or intramolecular non-foamed polyimide is prepared by heating an aromatic tetracarboxylic acid or dianhydride thereof and an aromatic diamine thereby preparing a polyamic acid, and then subjecting the polyamic acid in the solid phase in the absence of solvent to focused microwave radiation, thereby preparing the polyimide product.

REFERENCES:
patent: 4599365 (1986-07-01), Gagliani et al.
patent: 4855231 (1989-08-01), Lanier et al.
patent: 4877563 (1989-10-01), Broemmelsiek et al.
patent: 4892896 (1990-01-01), Wright
patent: 4897432 (1990-01-01), Lee et al.
patent: 4900762 (1990-02-01), Broemmelsiek et al.
Lewis et al. "Accelerated Imidization Reactions Using Microwave Radiation", Journal of Polymer Science, Part A: Polymer Chemistry, vol. 30, 1647-1653 (no month) (1992).
Thermal Solution Reactions, Cure Kinetics and Mechanical Behavior of Electromagnetically Processed Polyimides, Lewis et al, pp. 174-175. (no date).

Affiliated with

Also associated with

Rating

Polyamic acid to polyimide conversion by microwave heating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyamic acid to polyimide conversion by microwave heating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyamic acid to polyimide conversion by microwave heating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1550407