Silicon-modified polyimides

Details Silicon-modified polyimides Silicon-modified polyimides

1988-10-05

1990-07-03

Marquis, Melvyn

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

Synthetic resins

From silicon reactant having at least one...

528 41, C08G 7704

Patent

active

049392239

ABSTRACT:
Silicon-modified polyimides of this invention containing a basic structure of the general formula (1) ##STR1## in which R and R' are hydrogen or alkyl, B is the amineless residue of a diamine, and X is divalent radical ##STR2## in which R.sub.1 to R.sub.4 are monovalent hydrocarbon groups with 1 to 6 carbon atoms show excellent heat resistance and solubility in various solvents and are useful for films for orientation of LCD's, junction coating resins for diodes, passivation films for IC's and LSI's, and alpha ray shielding films for VLSI's.

REFERENCES:
patent: 3325450 (1967-06-01), Holub
patent: 3987003 (1976-10-01), Loughran et al.
patent: 4558110 (1985-12-01), Lee
patent: 4672099 (1987-06-01), Kunimune et al.
patent: 4818806 (1989-04-01), Kunimune et al.

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