Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1990-03-30
1992-05-19
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528351, C08G 6926, C08G 6928
Patent
active
051150905
ABSTRACT:
Viscosity stable, essentially gel-free linear polyamic acids are provided by a process utilizing offset stoichiometry. Polyimides formed from such polyamic acids have low TCE and low dielectric constants.
Methods for improved adhesion of polyimides are also disclosed.
REFERENCES:
patent: 4959437 (1990-09-01), Kunimune
Hummel John P.
Kwong Ranee W.
Lang Robert N.
Linehan Leo L.
Sachdev Harbans S.
Kight III John
Mosley T.
Stemwedel John A.
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