C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
154/140, 402/183
C08G 69/44 (2006.01) B32B 27/36 (2006.01) C08G 73/16 (2006.01) C08J 5/12 (2006.01) C09J 177/12 (2006.01) C09J 179/00 (2006.01)
Patent
CA 1218192
Bonding compositions for bonding polyesters or copolyesters to poly(vinyl alcohol) or copolymers thereof, the composition comprising a poly(esteramide) having an inherent viscosity of at least 0.45 dl/g, said poly(esteramide) containing repeating units from at least 80 mol percent of a dicarboxylic acid selected from pimelic, azelaic, sebacic acid or combinations thereof and optionally up to 20 mol percent of a second linear aliphatic dicarboxylic acid having at least four carbon atoms connected linearly between the two acid groups or an aromatic dicarboxylic acid; repeating units from 5 mol percent to 20 mol percent of 1,2-ethanediamine; and repeating units from 95 to 80 mol percent of a glycol selected from ethylene glycol, 1,4-butanediol, 1,4-cyclohexanedimethanol or combinations thereof. Also disclosed are shaped articles comprising a polyester polymer layer and a poly(vinyl alcohol) layer, the layers being bonded together with bonding compositions of this invention.
451430
Fagerburg David R.
Sand Irving D.
Shepherd Freddie A.
Wright Benny W.
Eastman Kodak Company
Gowling Lafleur Henderson Llp
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