Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1993-12-30
1995-12-26
Hampton-Hightower, P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528125, 528128, 528171, 528172, 528173, 528174, 528176, 528183, 528185, 528188, 528220, 528229, 528350, 528352, 526285, 4284111, 4284735, C08G 6926, C08G 7310
Patent
active
054789150
ABSTRACT:
Polyimide oligomers are described which comprise the condensation product of: at least one phenylindane diamine and at least one aromatic bis(ether anhydride). The polyimide oligomers of the invention are readily processed to form solution prepregable polyimide composites having high glass transition temperatures and high temperature and oxidative stability. More particularly, the present invention provides for crosslinkable polyimide oligomers prepared by reacting, in a suitable solvent under an inert atmosphere, a mixture of monomers comprising: (A) an aromatic diamine component comprising from about 25 to 100 mole % of at least one phenylindane diamine; (B) a dianhydride component comprising from about 25 to 100 mole % of at least one aromatic his(ether anhydride); and (C) at least one end-cap monomer selected from the group consisting of monoanhydrides, acyl halides and aromatic amines, wherein each end-cap monomer contains at least one crosslinkable functional group in the molecule. The crosslinkable polyimide oligomers of the present invention are characterized by a number average molecular weight of from about 1,000 to about 15,000.
REFERENCES:
patent: 3105839 (1963-10-01), Rennere
patent: 3528950 (1970-09-01), Lubowitz
patent: 3745149 (1973-07-01), Serafini et al.
patent: 3803081 (1974-04-01), Lubowitz
patent: 3856752 (1974-12-01), Bateman et al.
patent: 3983093 (1976-09-01), Williams, III
patent: 4395527 (1983-07-01), Berger
patent: 4480009 (1984-10-01), Berger
patent: 4552931 (1985-11-01), St. Clair et al.
patent: 4794157 (1988-12-01), Berdahl et al.
patent: 4830953 (1989-05-01), Bateman
patent: 4959440 (1990-09-01), Tamai et al.
patent: 4980481 (1990-12-01), Lubowitz et al.
patent: 4981922 (1991-01-01), Sheppard et al.
patent: 5087701 (1992-02-01), Lubowitz et al.
patent: 5196506 (1993-03-01), Tamai
patent: 5210174 (1993-05-01), Tamai et al.
Polymer News, 1987, vol. 12, pp. 294-306.
24th International SAMPE Technical Conference, Oct. 1992 pp. T983-T991.
Amone Michael
Southcott Mark R.
Ciba-Geigy Corporation
Hampton-Hightower P.
Teoli, Jr. William A.
LandOfFree
Polyimide oligomers 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 oligomers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyimide oligomers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1369903