Amphiphilic polyimide precursor containing c12-c30 hydrophobic g

Details Amphiphilic polyimide precursor containing c12-c30 hydrophobic g Amphiphilic polyimide precursor containing c12-c30 hydrophobic g

1986-07-15

1989-04-18

Kight, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528128, 528172, 528188, 528220, 528229, 528353, 528352, 4284735, 525436, C08G 7310

Patent

active

048228532

ABSTRACT:
An amphiphilic polyimide precursor having at least 70% by mole of the recurring unit of the formula (1): ##STR1## wherein R.sup.1 is a tetravalent group having at least 2 carbon atoms, R.sup.2 is a bivalent group having at least 2 carbon atoms, and R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are hydrogen atom or a monovalent group having 1 to 30 carbon atoms selected from an aliphatic group, an alicyclic group, an aromatic group, a group in which an aliphatic group is combined with an alicyclic group or an aromatic group, and their groups substituted by a halogen atom, nitro group, amino group, cyano group, methoxy group or acetoxyl group, provided that at least one, preferably at least two, of R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are hydrophobic monomolecular groups having 12 to 30 carbon atoms, the polyamide precursor being able to form a built-up film on substrates according to the Langmuir-Blodgett technique and being able to be converted into polyimide by heat treatment to provide an ultrathin film of of polyimide having a thickness of not more than 10,000 .ANG. and excellent heat resistance, chemical resistance, mechanical property and electric characteristics.

REFERENCES:
patent: 3261811 (1966-06-01), Tatum
patent: 3282897 (1966-11-01), Angelo
patent: 3312663 (1967-04-01), Sorenson
patent: 3316212 (1967-04-01), Angelo
patent: 3326851 (1967-06-01), Tocker
patent: 3349061 (1967-10-01), Pruckmayr
patent: 3376260 (1968-04-01), Fritz
patent: 3654227 (1972-04-01), Dine-Hart
patent: 4022732 (1977-05-01), Schwarcz
Alan K. Engel, Tomoko Yoden, Kohei Sanui, and Naoya Ogata, J. Am. Chem. Soc. (1985), 107, 8308-8310.
M. Suzuki, M. Kakimoto, T. Konishi, Y. Imai, M. Iwamoto and T. Hino, Chemistry Letters, (1986), 395-398; 823-826.
Alan K. Engel, Tomoko Yoden, Kohei Sanui and Naoya Ogata, Polymeric Materials Science and Engineering, 54, (1986), 119-123.
P. S. Vincett and G. G. Roberts, Thin Solid Films, 68, (1980), 135-171.
Chemical Abstracts, vol. 100, No. 10, 5th Mar. 1984, p. 10, abstract No. 68897m, Columbus, Ohio, U.S.; A. I. Volozhin et al.
Chemical Abstracts, vol. 102, No. 26, 1st Jul. 1985, p. 6, abstract No. 221283w, Columbus, Ohio, U.S.; L. Minnema et al.

Affiliated with

Also associated with

Rating

Amphiphilic polyimide precursor containing c12-c30 hydrophobic g does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Amphiphilic polyimide precursor containing c12-c30 hydrophobic g, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amphiphilic polyimide precursor containing c12-c30 hydrophobic g will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2397512