Polyimide and process for producing the same

Details Polyimide and process for producing the same Polyimide and process for producing the same

1996-08-29

1998-03-03

Hampton-Hightower, P.

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

Synthetic resins

From carboxylic acid or derivative thereof

528 26, 528 33, 528 38, 528125, 528128, 528170, 528171, 528172, 528173, 528174, 528179, 528183, 528185, 528188, 528220, 528229, 528350, C08G 7310, C08G 6926

Patent

active

057235716

ABSTRACT:
A novel polyimide is soluble in organic solvents and excels in heat resistance. The polyimide comprises 95-40 mol % of the repeating unit represented by the formulas (1) and 60-5 mol % of the repeating unit represented by the formula (2) and has a number average molecular weight of 4,000-200,000: ##STR1## wherein X is --SO.sub.2 -- and/or --C(.dbd.O)--OCH.sub.2 CH.sub.2 O--C(.dbd.O)--, Ar is a divalent group containing aromatic rings, and R is an alkylene group having 1-10 carbon atoms or a group: --CH.sub.2 OC.sub.6 H.sub.4 --, and n is an integer of 1-20.

REFERENCES:
patent: 4520075 (1985-05-01), Igarashi et al.
patent: 4851505 (1989-07-01), Hayes
patent: 5300627 (1994-04-01), Kunimune et al.
patent: 5320886 (1994-06-01), Bowen

Affiliated with

Also associated with

Rating

Polyimide and process for producing the same 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 and process for producing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyimide and process for producing the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2248764