Polyimidesiloxane solution and method of coating substrates

Details Polyimidesiloxane solution and method of coating substrates Polyimidesiloxane solution and method of coating substrates

C - Chemistry, Metallurgy

08

L

C08L 83/14 (2006.01) C08J 3/09 (2006.01) C08L 79/08 (2006.01) C09D 183/14 (2006.01)

Patent

CA 2120272

POLYIMIDESILOXANE SOLUTION AND METHOD OF COATING SUBSTRATES Abstract of the Disclosure Disclosed is a solution which comprises (a) a substantially fully imidized polyimidesiloxane; and (b) a solvent which comprises at least 50 wt% of a substituted pyrrolidone having the general formula Image where R is aliphatic or cycloaliphatic from C3 to C10. Also disclosed is a method of forming a coating on a substrate by applying the solution to the substrate and evaporating the solvent. Coatings formed from this solution are not subject to whitening as are coatings formed from the same polymers in other solvents.

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