Siloxane-containing polymers

Details Siloxane-containing polymers Siloxane-containing polymers

B - Operations, Transporting

32

B

400/2005, 402/9

B32B 9/04 (2006.01) C08G 73/10 (2006.01) C08G 77/04 (2006.01) C08G 77/455 (2006.01) C08L 79/08 (2006.01) H01L 23/28 (2006.01)

Patent

CA 1257038

SILOXANE-CONTAINING POLYMERS ABSTRACT OF THE INVENTION Polyamic acids prepared from the condensation of dianhydrides (or trianhydrides) and diamines and preferably dissolved in a suitable solvent produce polyimide shaped articles (e.g. films) relatively free of voids, pinholes, cracks and bubbles when about 0.75 to about 5 mole percent of a polysiloxane is incorporated in the backbone of the polyamic acid. -i-

493684

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