Selected poly(dianhydrides) compounds, selected poly(amic acid)

Details Selected poly(dianhydrides) compounds, selected poly(amic acid) Selected poly(dianhydrides) compounds, selected poly(amic acid)

1992-11-23

1993-08-24

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528125, 528128, 528170, 528171, 528172, 528173, 528174, 528183, 528185, 528188, 528189, 528206, 528208, 528220, 528224, 528226, 528229, 528322, 528350, 528352, C08G 6926, C08G 7312

Patent

active

052390497

ABSTRACT:
Poly(dianhydride) compounds having formulae (I) and (II): ##STR1## where m is 0 to 50. ##STR2## wherein n is 0 to 20 and X is bond junction, oxygen atom, sulfur atom, SO.sub.2, C(CF.sub.3), CO, C(CH.sub.3).sub.2, CF.sub.2 --O--CF.sub.2, CH.sub.2, and CHOH.

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C. E. Sroog, J. Polymer Science, Macromolecular Review, 11, 161 (1976).
A. K. St. Clair and T. L. St. Clair "The Development of Aerospace Polyimide Adhesives" in Polyimides, K. L. Mittal, Ed. vol. 2, Plenum Press, New York (1984).
F. Ramirez, H. Yomanaka, and O. H. Basedow Journal of American Chemical Soc., 83, 173 (1961).
Fausto Ramirez; John S. Ricci, Jr.; Hikotada Tsuboi; James F. Mareck; and Hiroshi Yamanski "Crystal and Molecular Structure of trans-Biphthalyl, C16 H804. Reaction of Substituted Phthalic Anhydrides with Trialkyl Phosphites" J. Org. Chem., vol. 41, No. 24, 1976, 3909-3914.
G. Knothe et al. "Polymeric Phthalocyanines and Their Precursors 16a) A Structure Model for Polymeric Phthalocyanines" Makromol. Chem. 190, pp. 1573-1586 (1989) [pp. 1573-1575].

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